Patent Grant
7551307
This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 10-359404 334599, filed Dec. 17, 1998, Japanese Patent Application No. 11-023007 filed Jan. 29, 2000 and Japanese Patent Application No. 11-352471, filed Dec. 10, 1999, the entire contents of which are incorporated herein by reference.
The present invention relates an image formation apparatus as well as to an image formation system. More specifically, this invention relates to an image formation apparatus and an image formation system in which a plurality of image formation apparatuses are connected to each other to share a copy job.
There has been known the so-called link copy operation for concurrently executing a print job with two or more units of image formation apparatus by linking a plurality of image formation apparatuses such as digital copying machines through a communication network like LAN and selecting a link mode provided in each apparatus. In other words, in this link copy operation, for instance when a specified number of copies are to be prepared for a document having N pages and further the processing for stapling (staple mode) is to be executed, then the availability of a staple function in a local machine (master machine) and other machines (slave machine) is checked. When it is confirmed that the link mode and staple mode are available in the local machine and other machines, then the printing job is executed by all the machines concurrently.
Further, there have been proposed various types of system for various purposes in which a plurality of image signal output units such an image scanner capable of outputting an image signal, a word processor, and a personal computer and a plurality of image formation units such as printers capable of forming an image based on image signals outputted from the image signal output units.
As examples of the image formation system described above, there is, for instance, the image formation system disclosed in Japanese Patent Publication No. HEI 2-21190 in which a plurality of image signal output devices and a plurality of image formation apparatuses are connected to each other in order to perform recording, storage and communication of image information between all the apparatuses. In this system access from an apparatus to any other apparatus is possible. Further, there is the system disclosed in Japanese Patent Laid-Open Publication No. HEI 5-304575 in which a plurality of digital copying machines are connected to each other to realize a faster copying.
In the conventional technology as described above, however, when system configuration of the master machine is different from that of the slave machine, if a mode not available in the slave machine is set in the master machine and link copy is started, a result which is different from that specified by the user is obtained. Thus there is a problem that operational disturbance or generation of incorrect copy may occur in the link copy operation.
In the link copy operation based on the conventional technology, each time an operation in the link copy mode is to be executed, it is required to directly check various conditions (such as availability of supply, a communication state, a state of a display screen, and an operating state) in the slave machines and then to set the link copy mode or start the operation. Because of such requirements, the operation is very complicated and productivity in printing is disadvantageously lowered.
In the link copy operation based on the conventional technology a function for automatically starting the link copy operation in both the master machine and the slave machines is not available. Therefore, when the number of copies is large, a long time is disadvantageously required for executing the printing job and the operation is also very complicated.
It is a first object of the present invention to prevent generation of a mistake in copying in a link copy mode when a user tries to set or sets an operation mode which can not be executed in both the master machine and the slave machines and also to improve operability in the link copy mode.
It is a second object of the present invention to improve operability and productivity of operations in the link copy mode by making it possible for a user of the master machine to check various conditions of the slave machines (such as availability of supply, a communication state, a state of a display screen, and an operating state of a slave machine, from the side of the master machine.
It is a third object of the present invention to simplify operations and improve productivity of operations in the link copy mode by automatically executing operations for copying in the link copy mode when a number of copies to be printed is larger and a long time may be required for the processing.
With an image formation apparatus according to the present invention, in a state where a link copy mode has been selected, when a function which can not be executed in a local device or in other image formation apparatus is selected, a link copy operation is inhibited.
With an image formation apparatus according to the present invention, a function available in a local machine is reported to other image formation apparatus, and an image of a document read by and transferred from the other image formation apparatus is printed in the local machine.
With an image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or the slave machine is selected, the master machine inhibits the link copy operation.
With an image formation apparatus according to the present invention, in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or other image formation apparatus is selected, a select key for selecting the function is not displayed.
With an image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the master machine or in the slave machine, the master machine does not display the select key for selecting the function.
With an image formation apparatus according to the present invention, in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or other image formation apparatus is selected, a display indicating that the select key for selecting the function is invalid is displayed.
With an image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the master machine or in the slave machine, the master key displays a message indicating that the select key for selecting the function is invalid.
With an image formation apparatus according to the present invention, in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or in other image formation apparatus is selected, the mode for executing the function is canceled.
With an image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the master machine or in the slave machine is selected, the master machine cancels the mode for executing the function.
With an image formation apparatus according to the present invention, the function includes a staple function.
With an image formation system according to the present invention, the function includes a staple function.
With an image formation apparatus according to the present invention, in a state when the link copy mode has been selected, when power for other image formation apparatus is OFF, the link copy operation is inhibited.
With an image formation system according to the present invention, a local machine reports a power ON/OFF state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from other image formation apparatus.
With an image formation apparatus according to the present invention, a slave machine reports a power ON/OFF state in the slave machine to a master machine, and inhibits the link copy operation when the link copy mode is selected and a power for the slave machine is OFF.
With an image formation apparatus according to the present invention, in a state where the link copy mode has been selected, when the other image formation apparatus are not ready for communications, the link copy operation is inhibited.
With an image formation apparatus according to the present invention, a local machine reports a communication-ready state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the other image formation apparatus.
With an image formation system according to the present invention, a slave machine reports a communication-ready state in the slave machine to a master machine, and in a state where the link copy mode has been selected, when the slave machine is not ready for communications, the master machine inhibits the link copy operation.
With an image formation apparatus according to the present invention, in a state where the link copy mode has been selected, when a communication error occurs in other image formation apparatus, the link copy operation is inhibited.
With an image formation apparatus according to the present invention, a local machine reports a communication error state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the other image formation apparatus.
With an image formation system according to the present invention, a slave machine reports a communication error state in the slave machine to a master machine, and the master machine inhibits the link copy operation in a state where the link copy mode is selected when a communication error occurs in the slave machine.
With an image formation apparatus according to the present invention, when power for other image formation apparatus is OFF, selection of the link copy mode is inhibited.
With an image formation system according to the present invention, a slave machine reports a power ON/OFF state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when power for the slave machine is OFF.
With an image formation apparatus according to the present invention, when other image formation apparatus are not ready for communication, selection of the link copy mode is inhibited.
With an image formation system according to the present invention, a slave machine reports a communication-ready state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is not ready for communications.
With an image formation apparatus according to the present invention, when a communication error occurs in other image formation apparatus, selection of the link copy mode is inhibited.
With an image formation system according to the present invention, a slave machine reports a communication error state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is in the communication error state.
With an image formation system according to the present invention, a slave machine cyclically transmits a communication connection check signal indicating whether connection has been established or not to a master machine, and the master machine receives the communication connection check signal and determines whether the slave machine is ready for communications or not.
With an image formation apparatus according to the present invention, when other image formation apparatus are in the supply-end state, the link copy operation is inhibited.
With an image formation apparatus according to the present invention, a local machine reports a supply state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the image formation apparatus.
With an image formation system according to the present invention, a slave machine reports a supply state in the slave machine to a master machine, and the master machine inhibits the link copy operation when the slave machine is in the supply-end state.
With an image formation apparatus according to the present invention, a reporting unit reports, when a supply state in a local machine changes, the supply state in the local machine to other image formation apparatus.
With an image formation apparatus according to the present invention, the link copy operation is inhibited when a print engine error occurs in other image formation apparatus.
With an image formation apparatus according to the present invention, a local machine reports an operating state of a print engine in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the other image formation apparatus.
With an image formation system according to the present invention, a slave machine reports an operating state of a print engine in the slave machine to a master machine, and the master machine inhibits the link copy operation when an print engine error occurs in the slave machine.
With an image formation apparatus according to the present invention, when an operating state of a print engine in a local machine changes, the local machine reports the operating state of a print engine in the local machine to other image formation apparatus.
With an image formation apparatus according to the present invention, when other image formation apparatus display a screen other than the normal copy screen, the link copy operation is inhibited.
With an image formation apparatus according to the present invention, a local machine reports a screen display state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the other image formation apparatus.
With an image formation system according to the present invention, a slave machine reports a screen display state in the slave machine to a master machine, and the master machine inhibits the link copy operation when the slave machine displays a screen other than the normal copy screen.
With an image formation apparatus according to the present invention, a reporting unit reports, when a screen display state in a local machine, the screen display state in the local machine to other image formation apparatus.
With an image formation apparatus according to the present invention, when other image formation apparatus are executing a printing operation, the link copy operation is inhibited.
With an image formation apparatus according to the present invention, a local machine reports an operating state of a print engine in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from other image formation apparatus.
With an image formation system according to the present invention, a slave machine reports an operating state of a print engine in the slave machine to a master machine, and the master machine inhibits the link copy operation when the slave machine is executing a printing operation.
With an image formation apparatus according to the present invention, a reporting unit reports, when an operating state of a print engine in a local machine changes, the operating state of a print engine in the local machine to other image formation apparatus.
With an image formation apparatus according to the present invention, when other image formation apparatus are in a supply end state, selection of the link copy mode is inhibited.
With an image formation apparatus according to the present invention, a slave machine reports a supply end state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is in the supply end state.
With an image formation apparatus according to the present invention, when other image formation apparatus are in the print engine error state, selection of the link copy mode is inhibited.
With an image formation system according to the present invention, a slave machine reports a print engine state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is in the print engine error state.
With an image formation apparatus according to the present invention, when other image formation apparatus are displaying a screen other than the normal copy screen, selection of the link copy mode is inhibited.
With an image formation system according to the present invention, a slave machine reports a screen display state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the salve device displays a screen other than the normal copy screen.
With an image formation apparatus according to the present invention, selection of the link copy mode is inhibited when other image formation apparatus are executing a printing operation.
With an image formation system according to the present invention, a slave machine reports an operating state of a print engine in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is executing a printing operation.
With an image formation apparatus according to the present invention, when a number of specified copies of a document to be printed is more than a prespecified number of sheets.
With an image formation system according to the present invention, when a number of sheets of document to be printed is more than a prespecified number of sheets, the link copy mode is automatically executed.
With an image formation apparatus according to the present invention, when a number of sheets of document is more than a prespecified number of sheets, the link copy mode is automatically executed.
With an image formation system according to the present invention, when a number of sheets of document is more than a prespecified number of sheets, the link copy mode is automatically executed.
With an image formation apparatus according to the present invention, a total number of sheets to be printed is calculated based on a number of sheets of document and a specified number of sheets of document to be printed, and the link copy mode is automatically executed when the calculated total number of sheets to be printed is more than a prespecified number of sheets.
With an image formation system according to the present invention, a master machine calculates a total number of sheets to be printed based on a number of sheets of document nd a specified number of sheets of document to be printed, and automatically executes the link copy mode when the calculated total number of sheets to be printed is more than a prespecified number of sheets.
With an image formation apparatus according to the present invention, a local image formation apparatus calculates a total required number of image-forming operations based on a number of sheets of document, a number of sheets of document to be printed, and a specified image formation mode, and automatically executes the link copy mode when the calculate number of image-forming operations is more than a prespecified value.
With an image formation system according to the present invention, a master machine calculates a total required number of image-forming operations based on a number of sheets of document, a specified number of sheets of document to be printed, and a specified image-forming mode, and automatically executes the link copy mode when the calculated total number of image-forming operations requires a larger number of sheets of paper more than a prespecified value.
With an image formation apparatus according to the present invention, when the link copy mode is automatically executed, a message indicating automatic execution of the link copy mode is displayed on a display unit.
With an image formation system according to the present invention, a master machine displays a message indicating automatic execution of the link copy mode on a display unit when the link copy mode is automatically executed.
With an image formation apparatus according to the present invention, when the link copy mode is automatically executed and a printing job is finished, the link copy mode is canceled.
With an image formation system according to the present invention, a master machine cancels the link copy mode when the master machine automatically executes the link copy mode and finishes a print job.
With an image formation apparatus according to the present invention, when the link copy mode is selected, a link copy mode shift request reporting unit sends a link copy mode shift request to other image formation apparatus connected thereto, and a link copy mode setting unit sets the link copy mode in response to the link copy mode shift request and based on a result of determination that a link copy mode shift request sent from other image formation apparatus can be accepted.
With an image formation apparatus according to the present invention, a link mode shift determination unit determines in response to a link copy mode shift request sent from other image formation apparatus whether shift to the link copy mode is possible or not, and sends the result of determination to the other image formation apparatus.
With an image formation apparatus according to the present invention, in a slave machine, a link copy mode shift determination unit determines in response to a link copy mode shift request sent from a master machine whether shift to the link copy mode is possible or not, and sends the result of determination to the master machine. On the other hand, when the link copy mode is selected, the link copy mode shift request reporting unit in the master machine sends a link copy mode shift request to the slave machine, and a link copy mode determination unit sets the link copy mode based on the result of determination sent from the slave machine that shift to the link copy mode is possible.
With an image formation apparatus according to the present invention, one image formation apparatus is connected to other image formation apparatus peer to peer.
With an image formation system according to the present invention, a master machine is connected to a slave machine peer to peer.
Other objects and features of this invention will become apparent from the following description with reference to the accompanying drawings.
Preferred embodiments of a digital copying machine and a digital copying machine system to which the image formation device and the image formation system each according to the present invention are respectively applied are described below with reference to the attached drawings.
A first embodiment of the present invention is explained below with reference to
Configuration of a Digital Copying Machine:
The document paper fed onto the contact glass 105 is read by a reading unit 106, and is discharged by the paper-feed belt 104 and a paper-discharge roller 107. When it is detected by a document set detection sensor 108 that another paper is present on the document base 102, the same series of operations performed with the previous paper. The paper-feed roller 103, paper-feed belt 104, and paper-discharge roller 107 are driven by a carrier motor not shown in this figure.
A plurality of sheets of recording paper placed on a first tray 109, a second tray 110, and a third tray 111 are fed from a first paper-feed section 112, a second paper-feed section 112, and a third paper-feed section 114 respectively, transferred by a paper carrier unit 115 to a resist roller, and are carried up to a position just before a contact position with photosensitive drum 116. In parallel with the operations described above, a document image read by the reading unit 106 is written as image data with a laser beam outputted from a writing unit 117 onto the photosensitive drum 116, and is visualized as a toner image by a development unit 118.
The recording paper is restarted at a timing so that the resist roller comes to a specified position against the toner image, carried by a carrier belt 119 at a speed equal to a rotational speed of the photosensitive drum 116, and is subjected to the transfer processing, thus the toner image on the photosensitive drum 116 being transferred. The toner image transferred onto the recording paper is thermally fixed by a fixing unit 120. The recording paper with the image fixed thereon (this process is described as image formation hereinafter) is discharged by a paper-discharge unit 121 onto a finisher 122 which is a postprocessing device.
The finisher 122, which is a postprocessing device, can guide recording paper carried thereto by a paper-discharge unit 121 in a main frame of the machine in a direction to a discharge paper tray 126 or to a staple processing section (at a bottom left corner in the figure). In this process, the finisher 122 guides the recording paper with a switch plate 124. By switching the switch plate 124 upward, the recording paper can be discharged via paper-discharge roller 123 and a carrier roller unit 132 to the normal discharge paper tray 126. By switching the switch plate 125 downward, the recording paper can be carried via carrier rollers 125 and 126 to a staple base 128.
An edge of the recording paper placed on the staple base 128 is aligned by a paper-aligning jogger 129 each time a sheet of recording paper is discharged, and then a certain number of copies are prepared, the sheets are stapled by a stapler 130. A group of sheets of recording paper stapled by the stapler 130 is accommodated into a stapled discharge paper tray 131.
The normal discharge paper tray 126 can be moved back and forth. The discharge paper tray 126, which can be moved back and forth, moves back and forth each time a document is copied, or each time a copy is sorted by an image memory 501 described later for sorting the discharged copies.
When images are to be formed on both surfaces of the recording paper, recording paper fed from the first tray 109, second tray 110, and third tray 111 with an image formed thereon is not guided to the discharge paper tray 126, but is temporally stocked on a double-surface paper-feed unit 134 by setting a branch claw 133 for switching a path for each sheet of recording paper in the upper side.
The recording paper temporally stocked in the double-surface paper feed unit 134 is again fed from the double-surface paper feed unit 134 with a toner image formed on the photosensitive drum 116 transferred thereon, and is guided to the discharge paper tray 126 by setting the branch claw 133 for switching a path for each sheet of recording paper in the lower side. As described above, the double-surface paper feed unit 134 is used when images are to be formed on both surfaces of recording paper.
The photosensitive drum 116, carrier belt 119, fixing unit 120, a paper-discharge unit 121, and development unit 118 are driven by a not illustrated main motor, while the first paper-feed section 112, second paper-feed section 113, and third-paper feed section 114 are driven by a transfer drive by the main motor to each component via a not illustrated first paper-feed clutch, a second paper-feed clutch, and a third paper-feed clutch. A vertical carrier unit 115 is driven by a transfer drive by the main motor via a not illustrated intermediate clutch.
Operations for reading an image in the image reading unit 106, operations for writing an image in the writing unit 117, and operations for forming a latent image on a surface of the photosensitive drum 116 are described below. The latent image as defined herein is a potential distribution generated by converting an image to optical data and irradiating the optical data onto a surface of the photosensitive drum 116.
The reading unit 106 comprises a contact glass 105 on which a document is placed, and an optical scan system. The optical scan system comprises an exposure lamp 135, a first mirror 136, a lens 137, a CCD image sensor 138, a second mirror 139, and a third mirror 140. The exposure lamp 135 and first mirror 136 are fixed to a not illustrated first carriage, while the second mirror 139 and third mirror 140 are fixed on a not illustrated second carriage. When reading an image, the first and second carriages are mechanically scanned at a relative speed of 2 vs 1 so that the light path length does not change. This optical scan system is driven by a not illustrated scanner drive motor.
The image is read by the CCD image sensor 138, and is converted to an electric signal. Magnification of the image can be changed by moving the lens 137 and CCD image sensor 138 in the left and right directions (in
The write unit 117 comprises a laser output unit 141, a focusing lens 142, and a mirror 143, and a not illustrated laser diode which is a source of laser beam having a specified wavelength and a not illustrated polygon mirror which is driven at a high and constant speed by a not illustrated polygon motor are provided in the laser output unit 141.
A laser bean irradiated from the laser output unit 141 is reflected by the polygon mirror which rotates at a constant high speed, passes through the focusing lens 142, again reflected by the mirror 143, and focused on a surface of the photosensitive drum 116, thus an image being formed.
The laser beams used for scanning is irradiated in a direction (main scanning direction) perpendicular to a direction in which the photosensitive drum 116 rotates, and is used for recording an image signal outputted from a selector of a image processing unit 402 described later line by line. By repeating the main scanning at a prespecified cycle corresponding to the rotating speed of the photosensitive drum 116 as well as to a recording density, an image (electrostatic latent image) is formed on the surface of the photosensitive drum 116.
As described above, a laser beam outputted from the writing unit 117 is irradiated to the photosensitive drum 116. A beam sensor (not shown) which generates a main scanning synchronization signal is located at a position near one edge of the photosensitive drum 116 where the laser beam is irradiated. Timing control for starting image recording in the main scanning direction and generation of a control signal for input/output of an image signal described later are executed based on this main scanning synchronization signal.
Configuration of the Operation Panel:
Configuration of the operation panel 201 used for providing displays to a user and also used by a user to input data for setting and controlling various functions is described below with reference to
In this embodiment, as a dot display unit is used as the liquid crystal touch panel 205, optimal displays most suited to the operation currently being performed can graphically be provided. Although a dot display unit is used as the liquid crystal panel 205 in this embodiment, configuration of the present invention is not limited to this one.
In
As shown in
Control System for the Digital Copying Machine:
A control system for the digital copying machine is described in detail with reference to
The memory unit 404 comprises a compression block, a DRAM block, a DMA block, and a serial trans-reception block. The DRAM block in the memory unit 404 stores therein an image signal read from the image reading section 402, and can transfer image data stored in the image writing section 403 in response to a request from the system controller 401. The compression block has a compression function based on the MH, MR, or MMR systems which are data compression systems generally used, and compresses an image once read to improve efficiency in use of a memory (DRAM). Rotation of an image is realized by changing an address read from the image writing section 403 and the direction. When it is required to realize the ordinary copy function, this memory unit 404 is not necessary.
The clock 404 is required only to realize a weekly timer function such as booting a machine, or shutting down the machine with a prespecified time (preset time) comes. The person body sensor 406 is required only for realizing a function to cancel, in a preliminarily heating mode, the mode when a user comes near the machine. The CSS 407 has a function of remote diagnosis, namely a function to automatically report an error in the machine to a service center, or to monitor an operating state of the machine from a remote site. The functions may be installed only when the functions are required.
Configuration of the Image Processing Unit (IPU) in the Digital Copying Machine:
The selector 502 supplies image data inputted from the MTFγ correction circuit 505 via a first print synthesis section 506 to a size-change circuit 508 via a second print synthesis section 507, or to a memory controller 510, and the image data having passed the size change circuit 508 is enlarged or compressed according to a magnification and is sent to the writing unit 117.
Image data can be transacted bi-directionally between the memory controller 510 and the selector 502. Although not clearly shown in
The image processing unit (IPU) further comprises a CPU 511 which sets various types of information (instructions) in the memory controller 510 or the like and provides controls over the reading unit 106 and writing unit 117, and a ROM 512 and a RAM 513 in which programs for the CPU 511 or data is stored. The CPU 511 can write data into or read data from the image memory 501 via the memory controller 510.
Image for one page in the selector 502 is described in detail with reference to
A signal indicating that image data in the main scanning direction is valid is a line gate signal (described as /LGATE hereinafter). The /LGATE, /LSYNC, and /LGATE signals are synchronized to a pixel synchronization signal (described as VCLK hereinafter), and data for one pixel is sent within one cycle of VCLK.
The IPU has a function of discretely generating the /FGATE, /LSYNC, /LGATE, and VCLK signals for image input and mage output respectively, and can realize various combinations of image input and output by executing phase adjustment or other necessary adjustment when it directly outputs the read document image (image data).
The memory controller 510 and image memory 501 are described in detail below with reference to
The image memory 501 comprises a primary memory 706 and a second memory 707. As the primary memory 706, a device enabling high speed access to a DRAM or the like is used so that image data can be written into or red out from the image memory 501 substantially in synchronism to a transfer rate of the inputted image data. The primary memory 706 can simultaneously execute input and output of image data by dividing a memory area into a plurality of areas according to a volume of image data to be processed. (For that purpose, an interface section with the memory controller 510 is used, although not shown herein.)
To enable concurrent input and output of image data into or from each of the divided area, two pairs of address data line for read and write are connected to an interface section with the memory controller 510. With this configuration, an image can be outputted (read) from an area 2 while an image is inputted (written) into an area 1.
The secondary memory 707 is a large capacity memory used to store therein data for synthesizing or sorting inputted images. By using elements enabling high speed access in both the primary memory 706 and secondary memory 707, data processing can be executed equivalently in both the primary memory 706 and secondary memory 707, and in addition the memory controller 510 can be controlled easily. However, a DRAM is rather expensive, so that, in this embodiment, data I/O is executed by using elements enabling high speed access only in the primary memory 706. It is needless to say that high speed elements such as a DRAM may be used not only in the primary memory 706, but also in the secondary memory 707.
As described above, by forming the image memory 501 with the primary memory 706 and secondary memory 707, it is possible to realize a digital copying machine which enables input/output, storage, and processing of a large quantity of image data with relatively simple configuration. Concentrated images generated by the concentrate copy function are written into and stored in the primary memory 706 in an arrayed form just like being written on a sheet of recording paper.
An outline of the operations executed by the memory controller 510 are described below. At first an operation for inputting an image (storing image data into the image memory 501) is described below.
The input data selector 701 selects image data to be written into an image memory (primary memory 706) from a plurality of data. The image data selected by the input data selector 701 is supplied to an image synthesis section 702. The image synthesis section 702 synthesizes the image data with data already stored in the image memory 501. Image data processed in the image synthesis section 702 is subjected to data compression by the primary compression/extension section 703, and the compressed data is written into the primary memory 706. The data written into the primary memory 706 is further subjected to compression by the secondary compression/extension section 705 according to the necessity, and is stored in the secondary memory 707.
An operation for outputting an image (for reading image data from the image memory 501) is described below. In this process, at first, image data stored in the primary memory 706 is read out. When an image to be outputted is stored in the primary memory 706, image data stored in the primary memory 706 is extended in the primary compression/extension section 703, and the extended data, or data obtained by synthesizing the extended data with input data is selected by the output data selector 704, thus the image data being outputted.
The image synthesis section 702 executes such processing as synthesis of data stored in the primary memory 706 with inputted data (with an image data phase adjustment function) and selection of a destination to which the synthesized data is outputted (output of an image, write-back to the primary memory 706, and simultaneous output to both destinations for output).
When an image to be outputted is not stored in the primary memory 706, input data which is stored in the secondary memory 707 and is to be outputted is extended in the secondary compression/extension section 705, the extended data is written into the primary memory 706, and then the image output operation as described below is executed.
Configuration of the Digital Copying Machine Network System:
Various ways such as use of the Ethernet as a physical means and use of TCP/IP (Transmission Control Protocol/Internet Protocol) communications which is an OSI (Open System Interface) reference model for data communications can be considered as the means for network communications. With the configuration as shown in
Digital Copying Machine System:
When the link copy mode is executed by the digital copying machines 1400, 1410, the machine in which the link copy key 310 is pressed to effect the link copy mode functions as a master machine (an operating machine). The master machine sends a request for linkage to a digital copying machine (slave machine) to be linked thereto and executed the link copy mode. In this link copy mode, image data for a document read by the master machine is transferred to the slave machine, and is printed by both the master machine and slave machine. Namely a copy job is shared by the master and slave machines. The digital copying machines 1400, 1410 are connected to each other peer-to-peer, so that each machine can function as both a master machine and a slave machine. In the following description, it is assumed that the digital copying machines 1400 functions as a master machine and the digital copying machine 1410 functions as a slave machine.
Operation for transferring an image read by the “digital PPC-1” to an image writing section in the “digital PPC-II” (the operation is described as “remote output” hereinafter) is described below with reference to
In
The “demon process” is present there as an application for reading out image data stored in the memory unit when a print request is received from other machine on the network and transferring the image data to the “image formation section”. It is needless to say that transfer of an image from the other machine on the network must be finished before an image is read from the memory unit and printed in the “demon process”.
The operation panel, peripheral devices, image formation section, image reader, and memory unit are treated as resources owned by each PPC. When the “digital PPC-I” shown in the figure executes a copy operation using each of the resources provided in itself (when the print start key is pressed”, the “digital PPC-I” demands the “system controller” to allow use of each resource such as an “image formation device”, an “image reader”, “peripheral devices”, and “memory unit” according to the necessity.
The “system control” section arbitrates conflicts over the right to use each resource in response to a request from the “copy application”, and reports the result of arbitration (whether the requested resource is available or not) to the “copy application”. When the “digital PPC-I” is used as a stand-alone machine (not connected to a network), all of resources owned by the system can be occupied by the “copy application”, so that a copy operation is immediately started. When a printing operation is executed by utilizing resources of other machine present on the network (described as a remote digital PPC hereinafter), the right for use of the resources is demanded to the “system controller” in the remote digital PPC.
The system controller in the remote digital PPC (slave machine) arbitrates conflicts over the resources according to the request, and reports the result of arbitration to an application in the machine having sent the request. When the right for use of the application is allowed, the remote digital PPC reads an image, stores the image in a memory unit in the remote digital PPC itself. When the image is stored, the remote digital PPC transfers the image to a memory unit in a machine as a destination for remote output through an interface. When the image transfer is over, the remote digital PPC transmits various conditions for execution of a printing job (such as a paper-feed port, a paper-discharge port, a number of sheets to be printed) to a “demon process” in the machine as a destination for remote output, and then transmits the “print start” command. When the “demon process” at the destination for remote output receives the “print start” command, the “demon process” sends a request for starting printing to the “system controller” in the machine (which executes remote output), thus remote output being executed by the system controller.
When a memory unit in the “digital PPC-II” is used by the “digital PPC-I”, the memory unit in the “digital PPC-II” can not be used excluding an application in the “digital PPC-II” (or digital PPCs other than the “digital PPC-I” when a plurality of digital PPCs are connected to each other on the network as shown in
Operations of the digital copying machine system shown in
In response to this demand, the slave digital copying machine 1410 sends information concerning connection of a peripheral equipments to the master digital copying machine 1400. The digital copying machine 1400 then determined whether a finisher 122 is connected or not to the local device (master machine) (S2004). When it is determined that the finisher 122 is not connected thereto, the digital copying machine 1400 displays a message on the operation panel 201 mentioning that the copy operation is not possible (S2008) with the system control returned to an initial step of the operation flow. On the other hand, when it is determined that the finisher 122 is connected to the local machine, the digital copying machine 1400 determines whether the finisher 122 is connected to the slave digital copying machine 1410 or not (S2005). If it is determined that the finisher 122 is not connected to the slave machine, the message is displayed on the operation panel 201 mentioning that the copy operation is not possible (S2008) with the system control returned to an initial step of the operation flow.
When it is determined in step S2005 that the finisher 122 is connected to the slave digital copying machine 1410, the digital copying machine 1400 determines whether there is any other cause disabling a copy operation (such as paper jamming, open door, or paper end) or not (S2006). When it is determined in this step that there is no specific cause disabling a copy operation, a message mentioning that a copy operation is possible is displayed on the operation panel 201 (S2007) with the system control returned to an initial step of the operation flow. On the contrary, when it is determined in this step that there is a specific cause disabling a copy operation, a message indicating that a copy operation is not possible is displayed on the operation panel 201 (S2008) with the system control returned to an initial step of the operation flow.
The operations described above are described in more detail below. The operations described above are executed when the operating mode is changed by an operator, or when an engine status (such as information on jamming, information on the door, information on supply (such as recording paper, or toner) changes. When both the link copy mode and staple mode are ON, the master machine sends to the slave digital copying machine 1410 a request for reporting whether any peripheral device is connected to the slave machine or not to check what functions are available in the slave digital copying machine 1410. More specifically, the master digital copying machine 1400 requests the slave digital copying machine 1410 to check whether the finisher 122 with a stapler 130 loaded thereon is available in the slave digital copying machine 1410 or not.
When the finisher 122 is present, the staple mode can be executed. When the finisher 122 is not present, the staple mode can not be executed. When the finisher 122 is not present in either one of the master digital copying machine 1400 and slave digital copying machine 1410, a message indicating that a copy operation is not possible is displayed on the operation panel 201. When the finisher 122 is present in both of the master and slave machines 1400, 1410, then whether there is any other cause (such as paper has jammed, the door is open, or the paper is not available). When it is determined that there is a specific cause disabling a copy operation, a message indicating that a copy operation is not possible is displayed on the operation panel 201. When it is determined that there is no specific cause disabling a copy operation, a message indicating that a copy operation is possible is displayed on the operation panel 201.
In the example of operation 1-1 described above, in the state where the link copy mode has been selected, when a mode which can not be executed in the master machine or slave machine (such as the staple mode) is selected, the link copy operation is inhibited. Because of this configuration, when a user sets a mode which can not be executed in the link copy mode, generation of a copy mistake can be prevented.
When it is determined in step S2102 that the finisher 122 is present in the master digital copying machine 1400, the master digital copying machine 1400 further determines whether the finisher 122 is present in the slave machine 1411 or not (S2103). When it is determined in this step that the finisher 122 is not present in the slave digital copying machine 1410, the staple mode key is not displayed (S2105) with the system control returned to an initial step of the operation flow. On the contrary, when it is determined that the finisher 122 is present in the slave machine 1400, the master digital copying machine 1400 displays the staple mode key 302 with the system control returned to an initial step of the operation flow.
Namely when the finisher 122 is present in both of the master digital copying machine 1400 and slave digital copying machine 1410, the staple mode key 302 is displayed, and otherwise the staple mode key 302 is not displayed. With this configuration, it is possible to prevent a staple mode which can not be executed in the link copy mode from being set.
In the example of operation 1-2 described above, in the state where the link copy mode has been selected, when a mode which can not be executed in the master machine or slave machine is selected, a select key for the corresponding function is not displayed. Because of this configuration, when a user tries to set a mode which can not be executed both in the master and slave machines 1400, 1410, generation of a mistakes in copying can be prevented, which improves the operability.
On the contrary, when it is determined in step S2202 that the finisher 122 is present in the master digital copying machine 1400, the master digital copying machine 1400 further determines whether the finisher 122 is present in the slave digital copying machine 1410 or not (S2203). When it is determined that the finisher 122 is not present in the slave digital copying machine 1410, the master digital copying machine 1400 displays a massage that the staple mode key 302 is invalid (S2205) with the system control returned to an initial step of the operation flow. On the contrary, when it is determined that the finisher 122 is present in the slave digital copying machine 1410, the master digital copying machine 1400 displays a message that the staple mode key 302 is valid (S2204) with the system control returned to an initial step of the operation flow.
Namely when the finisher 122 is present in both of the master digital copying machine 1400 and slave digital copying machine 1410, display indicating that the staple mode key 302 is valid is provided, and otherwise a message indicating that the staple mode key 302 is invalid is provided. Because of this configuration, it is possible to prevent the staple mode which can not be executed in the link copy mode from being set.
In the example of operation 1-3 described above, in a state where the link copy mode has been selected, when a mode which can not be executed in a master machine or in a slave machine, invalidity of the select key for the corresponding function is displayed. Because of this configuration, when a user tries to set a mode which can not be executed in the link copy mode, generation of a mistake in a copy operation can be prevented with the operability improved.
Namely, when the staple mode has been set but the finisher 122 is not present in the slave digital copying machine 1410, the staple mode is automatically canceled. Because of this configuration, the contradiction that a mode which can not be executed in the link copy mode is set can be prevented.
In the example of operation 1-4 described above, in a state where the link copy mode has been selected, a mode which can not be executed in the master machine or slave machine, the link copy mode is automatically cancelled. Because of this configuration, it never occurs in the link copy mode that a user sets a mode which can not be executed in both of the master and slave machines, which insures improved operability in the link copy mode.
A second embodiment of the present invention is described below with reference to
As shown in
Different from the two serial communication lines described above, another signal line for checking whether power for a device in communication is ON or not. This signal line is pulled up to Vcc in the device in communication, and pulled down in the local device, so that, when power for the device in communication is ON, a value read at an input port P10 indicates H level, and when power for the device is OFF, a value read at the input port P10 indicates L level. Because of this configuration, each equipment can determine whether power for a device in communication is ON or not by checking whether an input signal level at the input port P10 is high (H) or low (L).
Each device executes various types of processing for initialization after power thereto is turned ON. In this step, and output level from the output port P20 is set at a level L. After this operation, such operations as initialization of the URAT and initialization of an interruption controller are executed. When the device is ready for receiving serial data, and output level from the output port P20 is set at a level H. With this operation, each device can determine whether power for a device in communication is ON or not by checking whether an input signal level at the input port P10 is high (H) or low (L).
In step S3403, when it is determined that power of the slave digital copying machine 1410 is ON (a value read at the input port P10 indicates a level H), the master digital copying machine 1400 provides a display of, for instance, “ready” on the operation panel of the master digital copying machine 1400 (S3404), while the print key 202 is set in the print green state. On the contrary, when the master digital copying machine 1400 determines that power of the slave machine is OFF (a value read at the input port P10 indicates a level L), the master digital copying machine 1400 provides a display such as “Wait” indicating that copying is not possible on the operation panel of the master digital copying machine 1400 (S3405), and the print key 202 is set in the print red state.
When a power state for the slave machine 1400 changes during the operation described above, the operation sequence in step S3402 and on is executed. When the link copy mode is not set, however, the message of “ready” is provided regardless of whether power of the slave machine 1400 is ON or OFF, and the print key 202 is set in the print green state.
In the example of operation 2-1 described above, when power for the slave machine is OFF, the master machine inhibits operations in the link copy mode. Because of this configuration, even when a linked device is at a remote site, whether a link copy operation can be executed or not can be determined only with the master machine being operated by a user without directly checking whether power for the slave machine is ON or OFF, which insures improved operability.
In step S3503, when it is determined that the slave digital copying machine 1410 is ready for communication, the master digital copying machine 1400 displays a message indicating possibility of a copy operation on the operation panel (S3504) with the print key 202 set in the print green state. On the contrary, when it is determined in step S3505 that the slave digital copying machine 1410 is not ready for communication (communication not-ready state), the master digital copying machine 1400 displays a message indicating impossibility of a copy operation such as “wait” on the operation panel (S3505) with the print key 202 set in the print red state.
When the communication ready state in the slave machine changes, the operation sequence instep S3502 and on is executed. When the link copy mode has not been set, however, the master machine displays a message of “ready” on the operation panel regardless of whether the slave machine is ready for communications or not with the print key 202 set in the print green state.
With the example of operation 2-2, when it is determined that the slave machine is not ready for communication, the master machine inhibits operations in the link copy mode. Because of this configuration, even when a linked device is at a remote site, it is possible to determine whether a link copy operation can be executed or not with a device currently being operated by a user (master machine) without directly checking whether the slave machine is ready for communications or not, which insures improved operability in the link copy mode.
When it is determined in step S3603 that a communication error has not occurred in the slave digital copying machine 1410, the master digital copying machine 1400 displays a message indicating possibility of copying such as “ready” (S3604) with the print key 202 set in the print green state. On the contrary, when it is determined in step S3606 that a communication error has occurred in the slave digital copying machine 1410, the master digital copying machine 1400 displays a message indicating impossibility of copying such as “wait” on the operation panel of the master digital copying machine 1400 (S3605) with the print key 202 set in the print red state.
When a communication error in the slave digital copying machine 1410 is detected, the operating sequence in step S3602 and on is executed. When the link copy mode has not been set, however, the master machine displays a message indicating possibility of copying such as “ready” with the print key 202 set in the print green state.
In the example of operation 2-3 described above, when a communication error occurs in a slave machine, a master machine inhibits a link copy operation. Because of this configuration, even when a linked device is at a remote site, it is possible to check whether a link copy operation can be executed or not only with a master machine currently being operated by a user and without directly checking whether a communication error has occurred in the slave machine or not, and the necessity of executing a copy operation again due to a communication error is eliminated, which insures the operability in the link copy mode.
Processing for Sending a Communication Connection Check Command:
Processing for Receiving the Communication Connection Check Command:
A third embodiment is described below with reference to
In the example of operation 3-1 described above, when power of the slave machine is OFF, the master machine inhibits selection of the link copy mode. Because of this configuration, even when a linked device is at a remove site, it is possible to determined whether a link copy operation can be executed or not only with the master machine currently being operated by a user and without directly checking a power ON/OFF state of the slave machine, which insures improved operability in the link copy mode. When a mode disabling a link copy operation has been selected, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy mode is impossible, which insures further improvement in the operability.
In the example of operation 3-2 described above, when it is determined that a slave machine is not ready for communications, a master machine inhibits selection of the link copy mode. Because of this configuration, even when a linked device is at a remove site, it is possible to determined whether a link copy operation can be executed or not only with the master machine currently being operated by a user and without directly checking whether the slave machine is ready for communications or not, which insures improved operability in the link copy mode. When a link copy operation is impossible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation can not be executed, which insures further improved operability in the link copy mode.
In the example of operation 3-4 described above, when a communication error occurs in a slave machine, a master machine inhibits selection of the link copy mode. Because of this configuration, even when a linked device is at a remove site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking whether a communication error has occurred in the slave machine or not, and further the necessity of executing a copy operation again when a communication error occurs is eliminated, which insures improved operability in the link copy mode. In addition, when a link copy operation is impossible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insured further improved operability in the link copy mode.
The processing for transmitting the communication connection check command and processing for receiving the command in each step are the same as those shown in
A fourth embodiment of the present invention is described with reference to
Processing for Sending Data on a State of a Local Machine:
When it is determined that a state of supply has changed in the digital copying machine, data on the supply state is sent to a digital copying machine connected thereto (S4502). After transmission of the data on a supply state, or when it is determined that no change has occurred in the supply state, the digital copying machine determines whether any change has occurred in an error state of a print engine (digital copying machine) or not (S4503). A print engine error is defined herein as an abnormal state causing influence over a printing operation of the device as a whole. Namely the abnormal state as defined herein includes abnormality concerning carriage of recording paper (jamming, or failure in feeding recording paper), abnormality in rotation of a photosensitive drum 116, abnormality in a fixing unit, and abnormality in a post-processing unit or the like. Abnormalities concerning a scanner or an ADF each not required in the link copy mode is not included in the abnormality as defined herein.
When it is determined in step S4503 that a print engine error has occurred, the digital copying machine sends data on the print engine error (S4504), and further determines whether a display state of a screen of the operation panel has changed or not (S4505).
When it is determined that a screen display state has changed, the digital copying machine sends data on the current screen display state to a digital copying machine connected thereto (S4506). The screen display state as defined herein includes but not limited to a initialize screen for setting operating conditions of the device, and a maintenance mode screen (Refer to
The digital copying machine sends data on the screen display state, and then determines whether any change has occurred in an operating state of the print engine (S4507). When it is determined that an operating state of the print engine has changed, the digital copying machine sends data on the operating state of the print engine to a digital copying machine connected thereto (S4508).
Processing for Possibility of a Copy Operation in the Link Copy Mode:
When it is determined in step S5102 that the link copy mode has been set, the digital copying machine 1400 further determines whether the digital copying machine to which the digital copying machine 1400 is to be connected is in the supply (recording paper, toner) end state or not (S5103). When it is determined that the digital copying machine 1410 is not in the supply end state, the digital copying machine 1400 further determines whether the digital copying machine 1410 is in the print engine error state or not (S5104). When it is determined in step S5104 that the digital copying machine 1410 is not in the print engine error state, the digital copying machine 1400 further determines whether the digital copying machine 1410 is displaying the normal copy screen or not (S5105). When it is determined that the digital copying machine 1400 is displaying the normal copy screen, the digital copying machine 1400 further determines whether the print engine of the digital copying machine 1400 is operating or not (S5106). When it is determined in the step above that a print engine of the digital copying machine 1410 is not operating, the digital copying machine 1400 displays a message of, for instance, “ready” (S5107) on the operation panel.
As described above, in the link copy mode, the digital copying machine 1400 successively accesses data on an operating state of the digital copying machine 1410, and displays a message indicating possibility of copying when the digital copying machine 1410 is not in the supply end or print engine error state and is displaying the normal copy screen, and simultaneously when a print engine of the digital copying machine 1410 is not operating. When the digital copying machine 1410 in the supply end state or the print engine error state, or when the digital copying machine 1410 is not displaying the normal copy screen or a print engine thereof is operating, the digital copying machine 1400 displays a message indicating that copying is not possible on the operation panel 201 (S5108).
In the example of operation described above, when it is determined that a slave machine is in the supply end state, a master machine inhibits the link copy mode. Because of this configuration, even when a linked device is at a remote site, it is possible to determined whether a link copy operation can be executed or not only with the master machine currently being operated by a user and without directly checking a supply state in the slave machine, which insures improved operability in the link copy mode.
In the example of operation described above, when a print engine error occurs in a slave machine, a master machine inhibits a link copy operation, so that it is possible to determined whether a link copy operation can be executed or not only with the master machine currently being operated by a user and without directly checking a supply state in the slave machine, which insures improved operability in the link copy mode.
In the example of operation described above, when a slave machine displays a screen other than the normal display screen, the master machine inhibits a link copy operation, so that it is possible to determined whether a link copy operation can be executed or not only with the master machine currently being operated by a user and without directly checking a supply state in the slave machine, which insures improved operability in the link copy mode. Further, a demand for execution of a link copy operation is not sent during initialization or a maintenance work, so that it is possible to prevent initialization or a maintenance work from being interrupted.
In the example of operation described above, when a print engine of a slave machine is operating, the master machine inhibits a link copy operation, so that it is possible to determined whether a link copy operation can be executed or not only with the master machine currently being operated by a user and without directly checking a supply state in the slave machine, which insures improved operability in the link copy mode. Further, as a demand for a link copy operation is not sent from other devices while a print engine is operating, so that it is possible from a print job in execution from being affected by a request from other devices.
A fifth embodiment of the present invention is described with reference to
As described above, when the link copy key 301 is pressed, the digital copying machine 1400 determines an operating state of the digital copying machine 1410 connected thereto, and sets only in the case where the digital copying machine 1410 is not in the supply end state nor in the print error state, and also where the digital copying machine 1410 is displaying is not displaying a screen other than the normal copy screen and a print engine of the digital copying machine 1410 is not operating.
As described above, when the slave machine is in the supply end state, the master machine inhibits selection of the link copy mode, so that even when a linked device is at a remote site, it is possible to check whether a supply is available or not in the slave machine only with the master machine currently being operated and without directly checking availability of a supply in the slave machine, which insures improved operability in the link copy mode. Also selection of the link copy mode is inhibited in a state where a link copy operation is not allowable. Because of this configuration, it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insured further improved operability in the link copy mode.
As described above, when a slave machine is in the print engine error state, a master machine inhibits selection of the link copy mode. Because of this configuration, even when a linked device is at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking whether the slave machine is in the print engine error state or not, which insures improved operability in the link copy mode. Further, when a link copy mode is not allowable, selection of the link copy mode is inhibited, so that it is possible to alert user before selection of the link copy mode that a link copy operation is not possible, which insured further improved operability.
As described above, when a slave machine is displaying a screen other than the normal display screen, the master machine inhibits selection of the link copy mode. Because of this configuration, even when a linked device is at a remove site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking a state of a display screen of the slave machine, which insures improved operability in the link copy mode. When a link copy operation is not allowable, selection of the link copy mode is inhibited. Because of this feature, it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insured further improved operability. In addition, a demand of a link copy operation is not sent from other device during initialization or a maintenance work, so that the initialization or maintenance work is not interrupted.
As described above, when a print engine of a slave machine is operating, a master machine inhibits selection of the link copy mode. Because of this configuration, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an operating state of the slave machine, which insures operability in the link copy mode. When a link copy operation is not allowable, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insured further improved operability. In addition a demand for a link copy operation is not sent from other device when a print engine is operating, so that a printing job in executed is not affected by other devices.
A sixth embodiment of the present invention is described hereinafter with reference to
The master digital copying machine 1400 usually executes an operation for reading a document and an operation for printing the read image. Actually the master machine prints a scanned image as it is, and at the same time writes the image in a HDD 5700 having the same function as that of the primary memory 706 described above. After a first print is over, a next image is read out from the HDD 5700 to prepare a second copy, and then a third copy is prepared.
The slave digital copying machine 1410 stores an image sent from the master digital copying machine 1400 in the HDD 5700. After the image is stored, an operation for printing is executed. After the first copy is printed, second and third copies are prepared successively. In the case described above, a half of a specified number of copies are prepared by each of the master and slave machines, but the allotment can freely be set, and even when a printing operation is interrupted in either one of the devices, a number of sheets for printing allocated to each device can easily be changed. In addition, a number of remaining copies to be prepared can be changed during interruption of the printing operation.
Operations for Setting/Canceling the Link Copy Mode:
When it is determined that a number of set sheets is more than a specified value, the master digital copying machine 1400 sets the link copy mode (S6104), and set the automatic linkage flag (S6105). After the automatic linkage flat is set, or when it is determined in step S6102 that the link copy mode has not been set, or when it is determined in step S6103 that a number of set sheets is less than a specified value, the master digital copying machine 1400 reads the document (S6106), and stores the image in the HDD 5700 (S6107).
The master machine then determines whether the link copy mode has been set or not (S6108). When it is determined that the link copy mode has been set, the master machine 1400 reads the image from the HHD 5700, and sends the image data to the slave digital copying machine 1410 (S6109). The master digital copying machine 1400 then determines whether the document has completely been read or not (S6110), and when it is determined that the document has completely been read, the master digital copying machine 1400 prints (copies) the image stored in the HDD 5700 onto recording paper. The master machine then determines whether the printing job is over or not (S6112), and when it is determined that the printing job is over, the master machine 1400 further determines whether the automatic linkage flag has been set or not (S6113). When it is determined that the automatic linkage flag is set, the master digital copying machine 1400 cancels the link copy mode (S6114).
As described above, when a number of set sheets to be copied is more than a specified value, namely when a long time is required for formation of a series of images, the link copy mode is automatically set, which insures improved productivity in printing. Further, the link copy mode is automatically effected even to a user who does not know the function for link copy mode, so that the print processing with high productivity can be executed.
When the link copy mode is automatically executed and a copy job is finished, the link copy mode is automatically canceled, and a state before start of the print job is automatically restored. Because of this configuration, it is possible to prevent a linked device from being occupied for a long time.
When it is determined in step S6207 that the conditions for operations in the link copy mode have been established, the master digital copying machine 1400 sets the link copy mode (S6208), and sets the automatic linkage flag (S6209). The master digital copying machine 1400 then determines whether the link copy mode has been set or not (S6210). When it is determined that the link copy mode has been set, the master digital copying machine 1400 sends the image stored in the HDD 5700 to the slave digital copying machine 1410 for execution of printing (S6211). Further, the master digital copying machine 1400 prints (copies) the image stored in the HDD 577 on recording paper (S6212). Thus a printing job is shared by the master digital copying machine 1400 and slave digital copying machine 1410. The master digital copying machine 1400 then determines whether the printing job has completely been finished or not (S6213), and when it is determined that the printing job has completely been finished, the master digital copying machine 1400 further determines whether the automatic linkage flag has been set or not (S6214). When it is determined that the automatic linkage flag has been set, the master digital copying machine 1400 cancels the link copy mode (S6215).
Examples 1 to 3 of processing for determining whether the conditions for operations in the link copy mode in step S6206 are described below with reference to
In
As described above, when a number of sheets of document is more than a specified value, namely when it is expected that a long time is required to form a series of images, the link copy mode is set, which insures improved productivity in printing. Further, even to a user who does not know a function for printing in the link copy mode, the link copy mode is automatically effected, which makes it possible to realize the print processing with high productivity.
In
As described above, when a total number of images is not less than a prespecified value, namely, when it is expected that a long time is required for forming a series of images, the link copy mode is automatically set, so that the link copy mode is set on accurate conditions, which insures improved productivity in printing. Further, even to a user who does not know a function for the link copy mode, the link copy mode is automatically effected, which makes it possible to realize the print processing with high productivity.
In
As described above, when a total number of operations required for image formation is not less than a prespecified value, namely when it is expected that a long time is required for forming a series of images, the link copy mode is automatically set. Because of this configuration, when the conditions for the link copy mode correspond to the concentrate mode, a printing job can be executed more accurately with high productivity. Further, even to a user who does not know a function for the link copy mode, the link copy mode is automatically effected, which makes it possible to realize the print processing with high productivity.
Operations of a Slave Machine:
With this display control, a user can confirm that an operation in the link copy mode is automatically started. Further, when printed paper is taken out from the discharge paper tray, the necessity of taking out recording paper from a discharge paper tray in a linked device is alerted to the user, so that such a mistake as leaving printed paper left in a device for a long time can be prevented. When a printing job in the link copy mode is over, a state before start of the job is automatically restored, so that it is possible to prevent a linked device from being occupies by another device for along time.
A seventh embodiment of the present invention is described below with reference to
When it is determined in step S6801 that the link copy mode has been set with the local device having been as a master machine, the digital copying machine turns OFF the link copy mode (step S6804), and sends a request for canceling the link copy mode to the device in communication (slave machine) (step S6805) with the system control returned to an initial step of the operating sequence when the local machine is a slave machine the system control is returned to the initial step.
Operations executed when a digital copying machine receives a request for shift to the link copy mode is described below with reference to
In
In the seventh embodiment, only a slave machine sends data on an operating state of the slave machine to a master machine, and transmission of data on an operating state of a master machine is not required, which saves unnecessary operations in communication. Namely, a slave machine is not required to check an operating state of a master machine, which insured improved operability.
An eighth embodiment of the present invention is described below. In the fourth embodiment, a digital copying machine functioning as a master machine determines whether a link copy operation is possible or not. In the eighth embodiment, a slave machine determines whether a link copy operation is possible or not.
When it is determined in step S7301 that the link copy mode has been set with the local device specified as a master machine, the digital copying machine sends a request for canceling the link copy mode to a device in communication as an object for linkage (slave machine) to cancel the link copy mode in response to pressing of the link copy key 301 (step S7303) with the system control returned to an initial step of the processing sequence.
When it is determined that shift to the link copy mode is possible, the digital copying machine sets the link copy mode and stars functioning as a slave machine (step S7402), and sends a message indicating the possibility of shift to the link copy mode to the digital copying machine having sent a request for shift to the link copy mode (step S7403) with the system control returned to an initial step of the processing sequence. When it is determined in step S7401 that shift to the link copy mode is not possible, the digital copying machine sends a message indicating impossibility of shift to the link copy mode to the digital copying machine having sent to the request for shift to the link copy mode.
In the eighth embodiment, a slave machine determines whether a link copy operation is possible or not, the slave machine is not required to send data concerning an operating state of the device to the master machine, which insures improved efficiency in communications.
Terms relating to a digital copying machine and used in this specification are explained below.
“Image reading unit (Image reading section)”: As a “image reading unit” used in a digital PPC, there has been known which has a function for executing the “required image processing” by irradiating a light onto a document and converting the reflected light from the document with a charge coupled device to an electric signal. The “required image processing” as defined herein includes such processing as digitizing (converting analog data converted by a CCD to two-valued or multi-valued data), shading correction (correction of non-uniformity in light irradiated to a document or in sensitivity of the CCD), MMT correction (correction of ambiguousness caused in an optical system), processing for changing an image size (processing for data interpolation by changing read density for an image and using the read image data).
“Image formation section”: An “image formation section” used in a digital PPC is a device for converting an image sent as an electric signal to a visual image with such a means as electronic photography, heat-sensing, thermal transfer, or ink-jet on ordinary paper or heat-sensing paper.
“Video signal”, image data”: An electric signal for an image converted by the image forming unit described above, an electric signal for an image inputted into the image formation section, and a signal for establishing synchronism to an electric signal for an image are generically expressed as “video signal” or “image data”.
“Control signal”, “Command”: To transact a video signal among, “image formation units”, “image formation sections”, and “applications”, it is necessary to deliver information between the devices. The means is expressed as a “control signal” or “command” issuing.
“Extended function”, “application”, “memory function”, “memory unit”: An important feature of the digital PPC is the capability of reading an image as an electric signal and reproducing the electric signal as a visual image with an image formation apparatus. The digital PPC has the capability of changing and delivering the read electric signal in various ways, which insures applications in many fields other than an analog PPC. With the digital PPC, such functions as facsimile, a page printer, a scanner, a file system can be realized, and in recent years, when executing the PPC function, for instance, it is possible even to store read image data in a memory such as a DRAM once and prepare a plurality of copies with one scan when a plurality of copies of an image are required, or to print a plurality of document on one sheet of recording paper (this function is described as memory function hereinafter). This function which can be realized only with the digital PPC system is expressed as the “extended function” or “application”. The memory unit is also used as a buffer unit for transferring image data between devices on a network.
“System controller”, “System”: Controllers providing controls over the processing for carrying paper, the electronic photography, monitoring of abnormal state or a state of a paper-feed cassette (presence of recording paper or the like), and operations for controlling operations of a scanner, an ON/OFF state of a light source or the like to read an image with an image formation section are generically described as system controller. In recent years, not only one extended function, but a plurality of applications are loaded in a digital PPC. Sometimes PPCs sharing one resource are expressed as a “system”, and a controller which controls the system is expressed as “system controller”.
“Resources”: A functional unit shared by a plurality of applications is described as a “resource”. The “system controller” provides system control with this resource unit. Resources managed in the PPC according to the present invention include the “image reading unit”, “image formation section”, “operation panel”, “memory”, and “peripheral devices” (such as an AFD, a sorter, an automatic two-side copying unit, a stapler 130, a finisher 122).
“User limiting”: Especially in the PPC using the electronic photography process, sometimes it is desired to limit users who can use the device to prevent supplies from being wasted. To identify, limit, and mages the users, such “user limiting units” as a coin lack, a key counter, a key-card, a prepaid card, and user code are used.
“Setting for each user”: In case of a complicated system, sometimes it is required to customize the system for satisfying discrete needs of each user. It is impossible to set each machine discretely, when shipped from a factory, for satisfying needs of each user, so that services for each user are required in the market. Generally each machine has a nonvolatile RAM, which enables customization of the system. This function is expressed as “setting for each user”.
“Idle state”: A state where a machine is not operated by a user for a prespecified period of time” is expressed as “idle state”, and a state other than the idling state is described as “busy state”. A time required from the busy state to the idle state can be set discretely by each user. Not only during a copy operation, but also even when a copy operation is over, the busy state is not switched to the idling state before a state in which the machine is not operated by the user passes a prespecified period of time.
“Weekly timer”: This function is used to turn ON/OFF power according to an ON/OFF time set for each day of a week.
“Preliminary heating”: A mode for reducing power consumption by lowering temperature for fixing by a specified degree (for instance 10° C.) to turn OFF displays on an operation panel. This mode is automatically set when a prespecified period of time passes after a key entry on an operation panel is over, or after an operation or user's manipulation is over in some machines. This mode is automatically canceled when a user makes an key-entry on the operation panel, or when presence of an operator is detected by a human body sensor.
“Reload”: When a copying machine is in a state where temperature for fixing reaches a preset degree of temperature enabling fixing and a copy operation can be performed, the state is described as “reload”.
“Interruption mode”: In this mode, a user can temporally terminate a copy operation being made by another user and copy a document which the user specifies. When this mode is set, the previous copy mode before specification of this mode or data on a copy operation which is forcefully terminated upon interruption is stored in a nonvolatile RAM to effect the interruption mode, and the operating mode is initialized. When the interruption mode is canceled after execution of a copy operation, the mode or data stored in the nonvolatile RAM is read out to restore the state before the interruption mode is set, and the operating mode is restarted when the start key is pressed again. This mode is set or canceled with a key on the operation panel 201.
“Reservation mode”: In this mode, a plurality of copy applications are started concurrently, and the system controller controls the resources. When one copy application is being executed and an operation panel or an image reading unit is not being used by other user, use of another copy application is allowed for executing a specified operation or reading a document.
“CSS” (or “Remote diagnosis system”, “digital copying machine management system”):
Types of the PPCs connected to the same communication unit 1001 may be different from each other, and further equipment other than the PPC can be connected to the communication control unit 1001. It is assumed herein for convenience of description that up to five units of PPC can be connected to one unit of communication control unit. The communication control unit and a plurality of PPCs are connected to each other in the multi-drop mode based on the RS-485 standard. Communications between the communication control unit and each PPC is controlled according to the basic type of data transfer control protocol. Communication between the communication control unit and any of the PPCs is enabled by establishing a data link based on the polling/selecting system under centralized control. In this control mode, the communication control unit functions as a control station. In each PPC, specific values can be set with an address set switch, and with this operation, a polling address and a selecting address for each PPC is decided.
“Reservation copy”: In the “Reservation copy” mode, a plurality of copy applications are simultaneously started, and each application is executed discretely. Operation of an operation panel, peripheral devices, an image writing section, an image reading unit, and a memory, which are shared resources, are arbitrated by the system controller. Data for an operation screen for each of the plurality of copy application can be written on a virtual screen provided by the operation panel. The operation panel develops screen data of a virtual screen for an operation panel owner application specified by the system controller on the real screen.
“Reservation of an operation”: In the state of a reservation of an operation, a copy operation can not be started when such an operation as heating for fixing is being executed. With this function, it is possible to automatically start a copy operation after heating for fixing is finished and when a copy operation is enabled. In this embodiment, heating for fixing is one of operations which can be subscribed, but other operations which are automatically enabled in association with passage of time are qualified to be subscribed. The operations include an operation for raising an LCT tray, staple rotation of a polygon motor, and a toner supply operation.
The present invention is not limited to the embodiments described above, and can be carried out modifying it according to the necessity within a gist of the invention. For instance, description of the above embodiments assumes use of two units of digital copying machines connected to each other (Refer to
As described above, with the image formation apparatus (master machine) according to the present invention, in a state where a link copy mode has been selected, when a function which can not be executed in a local device or in other image formation apparatus is selected, a link copy operation is inhibited. Because of this feature, when a user sets an operation mode which can not be executed in both of master and slave machines concurrently in a state where the link copy mode has been set, generation of a mistake in a copy operation can be prevented.
With the image formation apparatus (slave machine) according to the present invention, a function available in a local device is reported to other image formation apparatus, and an image of a document read by and transferred from the other image formation apparatus is printed in the local machine. Because of this feature, when a user sets an operation mode which can not be executed in both of master and slave machines concurrently in a state where the link copy mode has been set, generation of a mistake in a copy operation can be prevented.
With the image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or the slave machine is selected, the master machine inhibits the link copy operation. Because of this feature, when a user sets an operation mode which can not be executed in both of master and slave machines concurrently in a state where the link copy mode has been set, generation of a mistake in a copy operation can be prevented.
With the image formation apparatus (master machine) according to the present invention, in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or other image formation apparatus is selected, a select key for selecting the function is not displayed. Because of this feature, when a user sets an operation mode which can not be executed in both of master and slave machines concurrently in a state where the link copy mode has been set, generation of a mistake in a copy operation can be prevented.
With the image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the master machine or in the slave machine, the master machine does not display the select key for selecting the function. Because of this feature, when a user sets an operation mode which can not be executed in both of master and slave machines concurrently in a state where the link copy mode has been set, generation of a mistake in a copy operation can be prevented.
With the image formation apparatus according to the present invention, in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or other image formation apparatus is selected, a display indicating that the select key for selecting the function is invalid is displayed. Because of this feature, when a user sets an operation mode which can not be executed in both of master and slave machines concurrently in a state where the link copy mode has been set, generation of a mistake in a copy operation can be prevented.
With the image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the master machine or in the slave machine, the master key displays a message indicating that the select key for selecting the function is invalid. Because of this feature, when a user sets an operation mode which can not be executed in both of master and slave machines concurrently in a state where the link copy mode has been set, generation of a mistake in a copy operation can be prevented.
With the image formation apparatus according to the present invention, in a state where the link copy mode has been selected, when a function which can not be executed in the local machine or in other image formation apparatus(es) is selected, the mode for executing the function is canceled. Because of this feature, a user can not set a mode which can not be executed in both of the master and slave machines concurrently, which insures improved operability in the link copy mode.
With the image formation system according to the present invention, a slave machine reports a function available in the slave machine to a master machine, and in a state where the link copy mode has been selected, when a function which can not be executed in the master machine or in the slave machine is selected, the master machine cancels the mode for executing the function. Because of this feature, a user can not set a mode which can not be executed in both of the master and slave machines concurrently, which insures improved operability in the link copy mode.
With the image formation apparatus according to the present invention, the function includes a staple function. Because of this feature, the staple function can advantageously be used in addition to the advantages described above.
With the image formation system according to the present invention, the function includes a staple function. Because of this feature, the staple function can advantageously be used in addition to the advantages described above.
With the image formation apparatus (master machine) according to the present invention, in a state when the link copy mode has been selected, when power for other image formation apparatus is OFF, the link copy operation is inhibited. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, which insures improved operability in the link copy mode.
With the image formation apparatus (slave machine) according to the present invention, a local machine reports a power ON/OFF state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from other image formation apparatus. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, which insures improved operability in the link copy mode.
With the image formation system according to the present invention, a slave machine reports a power ON/OFF state in the slave machine to a master machine, and the master machine inhibits the link copy operation when the link copy mode is selected and a power for the slave machine is OFF. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, which insures improved operability in the link copy mode.
With the image formation apparatus (master machine) according to the present invention, in a state where the link copy mode has been selected, when the other image formation apparatus are not ready for communications, the link copy operation is inhibited. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, which insures improved operability in the link copy mode.
With the image formation apparatus (slave machine) according to the present invention, a local machine reports a communication-ready state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the other image formation apparatus. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, which insures improved operability in the link copy mode.
With the image formation system according to the present invention, a slave machine reports a communication-ready state in the slave machine to a master machine, and in a state where the link copy mode has been selected, when the slave machine is not ready for communications, the master machine inhibits the link copy operation. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, which insures improved operability in the link copy mode.
With the image formation apparatus (master machine) according to the present invention, in a state where the link copy mode has been selected, when a communication error occurs in other image formation apparatus(es), the link copy operation is inhibited. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, and further the necessity of an operation for restarting a copy operation after a communication error is recovered is eliminated, which insures improved operability in the link copy mode.
With the image formation apparatus (slave machine) according to the present invention, a local machine reports a communication error state in the local machine to other image formation apparatus(es), and prints an image of a document read by and transferred from the other image formation apparatus(es). Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, and further the necessity of an operation for restarting a copy operation after a communication error is recovered is eliminated, which insures improved operability in the link copy mode.
With the image formation system according to the present invention, a slave machine reports a communication error state in the slave machine to a master machine, and the master machine inhibits the link copy operation in a state where the link copy mode is selected when a communication error occurs in the slave machine. Because of this feature, even when a linked device is at a remote site, it is possible to check whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking an ON/OFF state of power for the slave machine, and further the necessity of an operation for restarting a copy operation after a communication error is recovered is eliminated, which insures improved operability in the link copy mode.
With the image formation apparatus (master machine) according to the present invention, when power for other image formation apparatus is OFF, selection of the link copy mode is inhibited. Because of this feature, even when a linked device is at a remote site, it is possible to determine whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking a power ON/OFF state of a slave machine, which insures operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation system according to the present invention, a slave machine reports a power ON/OFF state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when power for the slave machine is OFF. Because of this feature, even when a linked device is at a remote site, it is possible to determine whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking a power ON/OFF state of a slave machine, which insures operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation apparatus (master machine) according to the present invention, when other image formation apparatus are not ready for communication, selection of the link copy mode is inhibited. Because of this feature, even when a linked device is at a remote site, it is possible to determine whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking a power ON/OFF state of a slave machine, which insures operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation system according to the present invention, a slave machine reports a communication-ready state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is not ready for communications. Because of this feature, even when a linked device is at a remote site, it is possible to determine whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking a power ON/OFF state of a slave machine, which insures operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation apparatus (master machine) according to the present invention, when a communication error occurs in other image formation apparatus, selection of the link copy mode is inhibited. Because of this feature, even when a linked device is at a remote site, it is possible to determine whether a copy operation is possible or not only with the master machine currently being operated by a user and without directly checking a power ON/OFF state of a slave machine, which insures operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation system according to the present invention, a slave machine reports a communication error state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is in the communication error state. Because of this feature, even when a link copy is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking whether a communication error has occurred in the slave machine or not, and further the necessity of an operation for restarting a copy operation after the communication error is recovered, which insures improved operability in the link copy mode. In addition, selection of the link copy mode is inhibited when a link copy operation is not possible, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation system according to the present invention, a slave machine periodically transmits a communication connection check signal indicating whether connection has been established or not to a master machine, and the master machine receives the communication connection check signal and determines whether the slave machine is ready for communications or not. Because of this feature, a dedicated communication line is not necessary, which enables cost reduction for the entire system.
With the image formation apparatus (master machine) according to the present invention, when other image formation apparatus are in the supply-end state, the link copy operation is inhibited. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible not only with the master machine currently being operated by user and without directly checking availability of supply in the salve device, which insures improved operability in the link copy mode.
With the image formation apparatus (slave machine) according to the present invention, a local machine reports a supply state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the image formation apparatus. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible not only with the master machine currently being operated by user and without directly checking availability of supply in the salve device, which insures improved operability in the link copy mode.
With the image formation system according to the present invention, a slave machine reports a supply state in the slave machine to a master machine, and the master machine inhibits the link copy operation when the slave machine is in the supply-end state. The master machine prints an image read by and transferred from other image formation apparatus(es). Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible not only with the master machine currently being operated by user and without directly checking availability of supply in the salve device, which insures improved operability in the link copy mode.
With the image formation apparatus (slave machine) according to the present invention, a reporting unit reports, when a supply state in a local machine changes, the supply state in the local machine to other image formation apparatus(es). Because of this feature, in addition to the advantages described above, a time required for communication can be reduced.
With the image formation apparatus (master machine) according to the present invention, the link copy operation is inhibited when a print engine error occurs in other image formation apparatus. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible not only with the master machine currently being operated by user and without directly checking availability of supply in the salve device, which insures improved operability in the link copy mode.
With the image formation apparatus (slave machine) according to the present invention, a local machine reports an operating state of a print engine in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the other image formation apparatus. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible not only with the master machine currently being operated by user and without directly checking availability of supply in the salve device, which insures improved operability in the link copy mode.
With the image formation system according to the present invention, a slave machine reports an operating state of a print engine in the slave machine to a master machine, and the master machine inhibits the link copy operation when an print engine error occurs in the slave machine. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible not only with the master machine currently being operated by user and without directly checking availability of supply in the salve device, which insures improved operability in the link copy mode.
With the image formation apparatus (slave machine) according to the present invention, when an operating state of a print engine in a local machine changes, the local machine reports the operating state of a print engine in the local machine to other image formation apparatus. Because of this feature, in addition to the advantage described above, a time required for communications can be reduced.
With the image formation apparatus (master machine) according to the present invention, when other image formation apparatus display a screen other than the normal copy screen, the link copy operation is inhibited. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not and without directly checking a screen display state in the slave machine, which insures improved operability in the link copy mode. Further, a demand for a link copy operation is never sent from other apparatus(es) during initialization or maintenance, so that an operation for initialization or maintenance is not interrupted.
With the image formation apparatus (slave machine) according to the present invention, a local machine reports a screen display state in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from the other image formation apparatus. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not and without directly checking a screen display state in the slave machine, which insures improved operability in the link copy mode. Further, a demand for a link copy operation is never sent from other apparatus during initialization or maintenance, so that an operation for initialization or maintenance is not interrupted.
With the image formation system according to the present invention, a slave machine reports a screen display state in the slave machine to a master machine, and the master machine inhibits the link copy operation when the slave machine displays a screen other than the normal copy screen. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not and without directly checking a screen display state in the slave machine, which insures improved operability in the link copy mode. Further, a demand for a link copy operation is never sent from other apparatus during initialization or maintenance, so that an operation for initialization or maintenance is not interrupted.
With the image formation apparatus (slave machine) according to the present invention, a reporting unit reports, when a screen display state in a local machine, the screen display state in the local machine to other image formation apparatus. Because of this feature, in addition to the advantages described above, a time required for communications can be reduced.
With the image formation apparatus (master machine) according to the present invention, when other image formation apparatus are executing a printing operation, the link copy operation is inhibited. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not and without directly checking a screen display state in the slave machine, which insures improved operability in the link copy mode. Further, a demand for a link copy operation is never sent from other apparatus during initialization or maintenance, so that a trouble of giving influence over a printing job in executed can be prevented.
With the image formation apparatus (slave machine) according to the present invention, a local machine reports an operating state of a print engine in the local machine to other image formation apparatus, and prints an image of a document read by and transferred from other image formation apparatus. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not and without directly checking a screen display state in the slave machine, which insures improved operability in the link copy mode. Further, a demand for a link copy operation is never sent from other apparatus during initialization or maintenance, so that a trouble of giving influence over a printing job in executed can be prevented.
With the image formation system according to the present invention, a slave machine reports an operating state of a print engine in the slave machine to a master machine, and the master machine inhibits the link copy operation when the slave machine is executing a printing operation. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not and without directly checking a screen display state in the slave machine, which insures improved operability in the link copy mode. Further, a demand for a link copy operation is never sent from other apparatus during initialization or maintenance, so that a trouble of giving influence over a printing job in executed can be prevented.
With the image formation system according to the present invention, a reporting unit reports, when an operating state of a print engine in a local machine changes, the operating state of a print engine in the local machine to other image formation apparatus. Because of this configuration, in addition to the advantages described above, a time required for communications can be reduced.
With the image formation apparatus (master machine) according to the present invention, when other image formation apparatus are in a supply end state, selection of the link copy mode is inhibited. Because of the feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking availability of a supply in a slave machine, which insures improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation system according to the present invention, a slave machine reports a supply end state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is in the supply end state. Because of the feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking availability of a supply in a slave machine, which insures improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation apparatus (master machine) according to the present invention, when other image formation apparatus are in the print engine error state, selection of the link copy mode is inhibited. Because of the feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking whether a print engine error has occurred in a slave machine or not, which insures improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation system according to the present invention, a slave machine reports a print engine state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is in the print engine error state. Because of this feature, even when a linked device is located at a remote site, it is possible to determined whether a link copy operation is possible or not only with the master machine currently being operated by a user and without directly checking whether a print engine error has occurred in the slave machine or not, which insured improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability.
With the image formation apparatus (master machine) according to the present invention, when other image formation apparatus are displaying a screen other than the normal copy screen, selection of the link copy mode is inhibited. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated and without directly checking a display screen state in the slave machine, which insures improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability. In addition, a demand for a link copy operation is never send during initialization or a maintenance work, so that interruption of initialization or maintenance work can be prevented.
With the image formation system according to the present invention, a slave machine reports a screen display state in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the salve device displays a screen other than the normal copy screen. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated and without directly checking a display screen state in the slave machine, which insures improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability. In addition, a demand for a link copy operation is never sent during initialization or a maintenance work, so that interruption of initialization or maintenance work can be prevented.
With the image formation apparatus (master machine) according to the present invention, selection of the link copy mode is inhibited when other image formation apparatus are executing a printing operation. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated and without directly checking an operating state of a print engine in the slave machine, which insures improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability. In addition, a demand for a link copy operation is never sent when a print engine of the slave machine is operating, so that a trouble giving influence over a printing job in execution can be prevented.
With the image formation system according to the present invention, a slave machine reports an operating state of a print engine in the slave machine to a master machine, and the master machine inhibits selection of the link copy mode when the slave machine is executing a printing operation. Because of this feature, even when a linked device is located at a remote site, it is possible to determine whether a link copy operation is possible or not only with the master machine currently being operated and without directly checking an operating state of a print engine in the slave machine, which insures improved operability in the link copy mode. Further, when a link copy operation is not possible, selection of the link copy mode is inhibited, so that it is possible to alert a user before selection of the link copy mode that a link copy operation is not possible, which insures further improved operability. In addition, a demand for a link copy operation is never sent when a print engine of the slave machine is operating, so that a trouble giving influence over a printing job in execution can be prevented.
With the image formation apparatus according to the present invention, when a number of specified copies of a document to be printed is more than a prespecified number of sheets, the link copy mode is automatically executed. Because of this feature, productivity in printing is improved. In addition, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation system according to the present invention, when a number of sheets of document to be printed is more than a prespecified number of sheets, the link copy mode is automatically executed. Because of this feature, productivity in printing is improved. In addition, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation apparatus (master machine) according to the present invention, when a number of sheets of document is more than a prespecified number of sheets, the link copy mode is automatically executed. Because of this feature, productivity in printing is improved. In addition, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation system according to the present invention, when a number of sheets of document is more than a prespecified number of sheets, the link copy mode is automatically executed. Because of this feature, productivity in printing is improved. In addition, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation apparatus (master machine) according to the present invention, a total number of sheets to be printed is calculated based on a number of sheets of document and a specified number of sheets of document to be printed, and the link copy mode is automatically executed when the calculated total number of sheets to be printed is more than a prespecified number of sheets. Because of this feature, operations in the link copy mode can be executed under more accurately conditions with improved productivity. Further, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation system according to the present invention, a master machine calculates a total number of sheets to be printed based on a number of sheets of document and a specified number of sheets of document to be printed, and automatically executes the link copy mode when the calculated total number of sheets to be printed is more than a prespecified number of sheets. Because of this feature, operations in the link copy mode can be executed under more accurately conditions with improved productivity. Further, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation apparatus (master machine) according to the present invention, a master machine calculates a total required number of image-forming operations based on a number of sheets of document, a number of sheets of document to be printed, and a specified image formation mode, and automatically executes the link copy mode when the calculate number of image-forming operations is more than a prespecified value. Because of this feature, conditions for enabling a link copy operation are more accurate as compared to those for the concentrate mode, and productivity in printing can be improved. Further, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation system according to the present invention, a master machine calculates a total required number of image-forming operations based on a number of sheets of document, a specified number of sheets of document to be printed, and a specified image-forming mode, and automatically executes the link copy mode when the calculated total number of image-forming operations requires a larger number of sheets of paper more than a prespecified value. Because of this feature, conditions for enabling a link copy operation are more accurate as compared to those for the concentrate mode, and productivity in printing can be improved. Further, it is possible to automatically execute a link copy operation even to a user who does not know a function of the link copy mode, which realizes the print processing with high productivity.
With the image formation apparatus (master machine) according to the present invention, when the link copy mode is automatically executed, a message indicating automatic execution of the link copy mode is displayed on a display unit. Because of this feature, in addition to the advantages described above, it is possible to let a user know that a copy operation is automatically started in the link copy mode.
With the image formation system according to the present invention, a master machine displays a message indicating automatic execution of the link copy mode on a display unit when the link copy mode is automatically executed. Because of this feature, in addition to the advantages described above, it is possible to let a user know that a copy operation is automatically started in the link copy mode.
With the image formation apparatus (master machine) according to the present invention, when the link copy mode is automatically executed and a printing job is finished, the link copy mode is canceled. Because of this feature, in addition to the advantages described above, a state where a linked device is occupied by other devices for a long time can be prevented.
With the image formation system according to the present invention, a master machine cancels the link copy mode when the master machine automatically executes the link copy mode and finishes a print job. Because of this feature, in addition to the advantages described above, a state where a linked device is occupied by other devices for a long time can be prevented.
With the image formation apparatus (master machine) according to the present invention, when the link copy mode is selected, a link copy mode shift request reporting unit sends a link copy mode shift request to other image formation apparatus connected thereto, and a link copy mode setting unit sets the link copy mode in response to the link copy mode shift request and based on a result of determination that a link copy mode shift request sent from other image formation apparatus can be accepted. Because of this feature, the communication efficiency in the link copy mode can be improved.
With the image formation apparatus (slave machine) according to the present invention, a link mode shift determination unit determines in response to a link copy mode shift request sent from other image formation apparatus whether shift to the link copy mode is possible or not, and sends the result of determination to the other image formation apparatus. Because of this feature, the communication efficiency in the link copy mode can be improved.
With the image formation system according to the present invention, in a slave machine, a link copy mode shift determination unit determines in response to a link copy mode shift request sent from a master machine whether shift to the link copy mode is possible or not, and sends the result of determination to the master machine. On the other hand, when the link copy mode is selected, the link copy mode shift request reporting unit in the master machine sends a link copy mode shift request to the slave machine, and a link copy mode determination unit sets the link copy mode based on the result of determination sent from the slave machine that shift to the link copy mode is possible. Because of this feature, the communication efficiency in the link copy mode can be improved.
With the image formation apparatus according to the present invention, one image formation apparatus is connected to other image formation apparatus peer to peer. Because of this feature, an image formation apparatus can functions as either one of a master machine and a slave machine.
With the image formation system according to the present invention, a master machine is connected to a slave machine peer to peer. Because of this feature, in addition to the advantages described above, an image formation apparatus can functions as either one of a master machine and a slave machine.
Although the invention has been described with respect to a specific embodiment for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art which fairly fall within the basic teaching herein set forth.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-359404 | Dec 1998 | JP | national |
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| Number | Date | Country | |
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| Number | Date | Country | |
|---|---|---|---|
| Parent | 09461738 | Dec 1999 | US |
| Child | 11620742 | US |
