The present disclosure is related to U.S. patent application Ser. No. 11/903,945 filed on Sep. 25, 2007 and entitled “Printing System With Single-Use Inkjet Cartridge”, the disclosure of which is hereby incorporated by reference.
The present disclosure relates generally to printing devices. In particular, the present disclosure relates to incorporating a single-use inkjet cartridge into a printing system.
Typical inkjet printers, using single use disposable inkjet printer cartridges, are characterized in that a piece of paper or other printable surface is fed into a printer to incremental, stationary positions. The printing system then moves a print head across the lateral length of the paper while the paper is held in place, creating a line of printed characters. When these inkjet printers have completed printing a document, the print head slides across a wiper blade positioned beyond an edge of the paper and into a “parked” position. Sliding the print head across the wiper cleans the print head, and “parking” the cartridge caps it and prevents leaking ink from the inkjet cartridge.
In automated document processing systems, a print head is held stationary during printing, and the printed surface is moved across a printing aperture to allow the printer to direct ink onto the printable surface. One example of such systems includes a check printing system in which specific check processing information, such as an endorsement, may be printed onto a portion of the check to expedite routing and processing of the check. In such systems, banking laws may require that the entity performing the processing of the document can print a unique, programmable endorsement onto the front or rear of the check.
Existing print heads in such systems incorporate complex circuitry and mechanical systems to deliver ink to the print head, and require complicated ink piping and delivery systems. Additionally, complex electrical systems are required to control the ink flow.
Although a disposable inkjet printer cartridge may be used in place of such complicated print heads, automated document processing systems generally retain the print head in a constant position. These systems, unlike traditional inkjet printers, are not configured to move the print head across a wiper and into a capped position. This leaves the inkjet cartridge prone to clogging and drying out, causing failure of the document processing system. Furthermore, such systems are not configured to change the vertical position on a document at which the print head can print. This limits the printable space available on a check or other document passing through the system.
For at least this reason, improvements are desirable.
In accordance with the following disclosure, the above and other problems are solved by the following:
In a first aspect, a printing system is disclosed. The printing system includes a carriage mountable adjacent to a path of travel of a printable surface. The system also includes a print cartridge housing configured to hold a print cartridge having a printing aperture oriented toward the path of travel of the printable surface. The print cartridge housing is mounted to the chassis and moveable in a direction normal to the path of travel of the printable surface. The system further includes a clean and park station pivotally mounted to the chassis and capable of pivoting across the printing aperture of the print cartridge to wipe and cover the printing aperture. In the system disclosed, the print cartridge housing and the clean and park station are moveable between a printing position and a parked position.
In a second aspect, a method of operating a printing system is disclosed. The method includes providing a print cartridge housing mounted to a carriage, the print cartridge housing configured to hold a print cartridge in a stationary printing position when printing onto a moving printable surface. The method further includes retracting a print cartridge housing from the printing position in a direction normal to a path of travel of a printable surface. The method also includes pivoting a clean and park station to a parked position across a printing aperture of a print cartridge held in the print cartridge housing to wipe the printing aperture and align a cap with the printing aperture.
In a third aspect, a check printing system is disclosed. The check printing system includes a carriage mountable adjacent to a path of travel of a check. The system further includes a print cartridge housing configured to hold a disposable inkjet print cartridge having a printing aperture oriented toward the path of travel of the check. The print cartridge housing is mounted to the chassis and moveable in a direction normal to the path of travel of the printable surface. The system also includes a height adjustment mechanism configured to locate the print cartridge housing at a plurality of user-selectable heights along the path of travel. The system includes a clean and park station including a wiper and a cap, where the clean and park station pivotally mounted to the chassis and capable of pivoting across the printing aperture of the disposable inkjet print cartridge to wipe and cover the printing aperture. The system also includes a motor configured to drive the print cartridge housing and the clean and park station between a printing position and a parked position.
In a fourth aspect, an automated document processing system is disclosed. The automated document processing system includes a document feeder and a document sorter connected to the document feeder by a path of travel. The automated document processing system also includes a printing system. The printing system includes a carriage mountable adjacent to a path of travel of a printable surface. The system also includes a print cartridge housing configured to hold a print cartridge having a printing aperture oriented toward the path of travel of the printable surface. The print cartridge housing is mounted to the chassis and moveable in a direction normal to the path of travel of the printable surface. The system further includes a clean and park station pivotally mounted to the chassis and capable of pivoting across the printing aperture of the print cartridge to wipe and cover the printing aperture. In the system disclosed, the print cartridge housing and the clean and park station are moveable between a printing position and a parked position.
Various embodiments of the present disclosure will be described in detail with reference to the drawings, wherein like reference numerals represent like parts and assemblies throughout the several views. Reference to various embodiments does not limit the scope of the invention, which is limited only by the scope of the claims attached hereto. Additionally, any examples set forth in this specification are not intended to be limiting and merely set forth some of the many possible embodiments for the claimed invention.
In general, the present disclosure relates to incorporating a single-use inkjet cartridge into a print assembly of an automated document processing system. The automated document processing system of the present disclosure allows height adjustable printing (i.e. multiple printed lines of text) on one or more moving printable objects from a stationary printing device. By automated document processing system, it is intended that any of a number of types of document processing systems are incorporated which include moving-document printing systems, in which a stationary printing device (and related print assembly) prints characters in a line onto moving printable media (e.g. paper, such as checks or other endorseable documents) passing by a print aperture at a high rate of speed. In the systems disclosed herein, a low-cost solution for printing is disclosed using a disposable inkjet print cartridge integrated into a print assembly capable of self-cleaning and maintenance.
Referring now to
A control system 18 is interconnected to the document feeder 12 and the document sorter 14 to control flow of documents along the path of travel 16. The control system 18 can be an application level program configured to control flow and processing of documents. The control system 18 can reside on a general purpose or specific purpose computing system capable of communicating with the feeder 12 and sorter 14.
The control system 18 further directs a printing system 20 and a scanning system 22. The printing system 20 prints desired characters and/or images onto documents passing by the printing system along the path of travel 16. The printing system 20 can incorporate a print assembly which is configured to print from a stationary printing aperture onto moving documents passing by the printing system along the path of travel. In the example of a check processing system, the printing system 20 can print an endorsement onto the back of a check which is being processed at a financial institution operating the system 10. Other documents may be processed as well, by financial institutions or other document processing entities. The scanning system 22 can scan one or both sides of documents passing along the path of travel 16, to store text and/or images displayed on the documents.
By passing documents through the automated document processing system 10, a large volume of documents can be printed and electronically captured, such that various records can be stored for each of a large number of documents. In the case of a financial institution processing checks or other documents, that institution can endorse a large number of checks, can capture check images and routing information, and can appropriately sort the document for distribution back to the issuing institution of the check.
Referring now to
The system 100 includes a frame 102 and a carriage 104. The frame 102 provides a stationary base for connection of the various components of the system, and includes a carriage mount 106 and a height adjustment mechanism 108. The carriage mount 106 allows the carriage 104 to be mounted to the stationary frame 102, near a path of travel 110 (defined by the locations of rollers 111a-b) of documents or other printable surfaces past the system 100. The path of travel 110 generally corresponds to a portion of the path of travel 16 of
The carriage 104 incorporates a print cartridge housing 118, which is configured to secure a print cartridge 120 within it. The print cartridge 120, when inserted into the housing 118, is oriented such that a printing aperture 122 is directed toward the path of travel 110 of printable surfaces passing by the system 100. The carriage 104 includes a cartridge retention tab 124 and a retention arm 125, configured to assist in retaining the print cartridge 120 within the housing 118. The carriage 104, when connected to the frame 102, directs the printing aperture 122 of the print cartridge 120 toward the path of travel 110 of checks or other documents.
The height adjustment mechanism 108 includes a pole 107 and a height adjustment knob 109. The pole 107 includes a plurality of openings spaced apart at varying heights. The knob 109 includes a spring-biased pin (not shown) which can be inserted into one of the openings to set the height of the frame 102. To set the printing height of the system 100, a user can pull the knob 109 to release the frame 102 from the pole 107 such that it can slide vertically along the pole. The user can then release the knob 109 at a desired location such that the spring loaded pin inserts into one of the openings. By setting the height of the frame 102 at differing heights, the system 100 can locate the printing aperture 122 of the print cartridge 120 at differing vertical locations on documents passing along the path of travel 110. Therefore, multiple lines of text can be printed onto each document.
Optionally, a print distance control 117 is incorporated into the carriage 104, and provides a second axis of printing adjustment for the system 100. The print distance control 117, shown as a position screw, adjusts the distance between the printing aperture 122 and the path of travel 110 when the system 100 is in a printing position. By adjusting the print distance control 117, a user can manually focus the images printed on the documents passing along the path of travel by controlling the distance from the aperture 122 to a document.
A clean and park assembly 126 is mounted to the frame 102 as well. The clean and park assembly 126 is configured to pivot across the printing aperture 122 when the system 100 is not in use. The clean and park assembly 126 includes a wiper 128 and a cap 130 located on a surface of the assembly 126 that faces aperture 122 when pivoted across it. The wiper 128 is a rubber or plastic extension configured to uniformly pass across the printing aperture 122, to clean any extraneous ink from the printing aperture and thereby preventing streaking or smudging from occurring during printing. The cap 130 provides a sealing structure which can form an airtight seal over the printing aperture 122, preventing ink from drying out in the printing aperture and thereby causing a printer failure. The clean and park assembly 126 and the carriage 104 are moved between a printing position during operation, and a “parked” position when not in use. Details of the movement of the assembly 126 and carriage 104 are described below in detail, particularly in conjunction with
A motor 132 mounted to the frame 102 resides axially to a cam plate 134 and the clean and park assembly 126. In one embodiment, the motor 132 is a stepper motor; however, other types of motors can be used in conjunction with the present disclosure. If other types of motors are used but discrete positioning of the cam plate is desired, a stepped drive mechanism or limiting mechanism can be incorporated into the system as well.
The motor 132 drives rotation of the cam plate 134 using a cam plate mounting shaft 133. The cam plate is shaped to, when rotated, pivot the clean and park assembly 126 between a “printing” position (as shown, for example, in
The cam plate 134 is further shaped to press against a portion of the carriage 104, such as against a roller 105 fixedly attached to the carriage 104, when rotated by the motor 132. The force of the cam plate 134 counteracts the force of the compression spring 116 and moves the carriage 104 and attached print cartridge housing 118 in a direction normal to the path of travel 110 of documents passing by the system 100. A notch 135 in the cam plate 134 passes through the roller 105 of the carriage 104 when the clean and park assembly passes in front of the printing aperture 122. This allows the compression springs 116 to move the carriage forward toward the path of travel 110. When the carriage 104 moves toward the path of travel 110 due to the notch 135, the printing aperture 122 moves toward the wiper 128 which concurrently passes in front of the aperture, thereby cleaning the printing aperture uniformly. After the notch 135 in the cam plate 134 is passed, the cam plate 134 continues pressing the roller 105, separating the carriage 104 from the frame 102 until the extended portion of the cam plate including the notch 135 is rotated away from the carriage. At this point, the cam plate has rotated the clean and park assembly 126 to a fully parked position. The cam plate 134 allows the carriage 104 to be pressed by the compression springs 116 toward the clean and park assembly 126, sealing the printing aperture 122 against the cap 130. By sealing the printing aperture 122, drying of any remaining ink on the aperture is avoided.
Referring now to
The height adjustment mechanism 108 allows the frame 102, carriage 104, and other components to be lifted from the position shown in
Referring now to
Now referring to the printing system of
When printing is completed, the motor 132 allows the cam plate 134 to rotate in a counterclockwise direction. As the cam plate 134 rotates, it allows the clean and park assembly 126, which is biased toward returning to the parked position, to pivot across the printing aperture 122, causing the wiper 130 to remove excess ink from the aperture (e.g.
In one embodiment, the motor 132 actuates, moving the cam plate 134 in the counterclockwise direction from the printing position to the parked position. In a second embodiment, the motor 132 is deactivated, allowing a spring biased clean and park assembly 126 or cam plate 134 to return to the parked position.
When the system 100 is reactivated to restart a printing process, the motor 132 activates, causing the cam plate 134 to rotate in a clockwise direction. The cam plate 134, as shown in the progression of
Although the automated document processing system disclosed herein includes a printing system having the specific configuration disclosed in
The above specification, examples and data provide a complete description of the manufacture and use of the composition of the invention. Since many embodiments of the invention can be made without departing from the spirit and scope of the invention, the invention resides in the claims hereinafter appended.
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