Patent Application
20080231677
The present application claims priority from Japanese Patent Application No. 2007-071195, filed on Mar. 19, 2007, the disclosure of which is incorporated herein by reference in its entirety.
1. Field of the Invention
The present invention relates to a printer system provided with a main printer which includes a first tank having a large volume and a first discharge head and a sub printer which includes a second tank having a volume smaller than that of the first tank and a second discharge head, the main printer to be used for the printer system, and a method for discharging the waste ink.
2. Description of the Related Art
A portable type printer has been suggested, which is small in size as compared with a stationary type printer provided with a paper feed/discharge mechanism and which can be carried about, for example, with one hand (see, for example, Japanese Patent Application Laid-open Nos. 10-24613 and 2003-72107). Even in the case of such a portable type printer, it is necessary that any bubble, which exists in the ink stored in the ink tank, should be removed and/or the meniscus, which is formed in the nozzle hole of the discharge head, should be adjusted in order to appropriately form the image on the recording member. For this purpose, it is required to appropriately perform the purge process.
However, when the purge process is performed, the ink is discharged from the discharge head. Therefore, it is necessary to provide a waste ink-accommodating section for accommodating the discharged waste ink. If the waste ink-accommodating section is provided in a narrow and small casing of the portable type printer, it is necessary that the ink tank, which is accommodated in the casing as well, should have a smaller volume. This contravenes such an object aimed for the portable type printer that it is intended to increase the volume of the ink tank in order to avoid any early ink shortage. In view of the above, Japanese Patent Application Laid-open Nos. 10-24613 and 2003-72107 describe a portable type printer which is not provided with any discharge ink-accommodating section for the purge operation, wherein a discharge ink-accommodating section is provided for an exclusive station which is subjected to the docking with the portable type printer.
However, the exclusive station as described above finds no way of use except when the portable type printer is subjected to the docking. Further, the installation space is not small as well. In this viewpoint, it is not affirmed that the exclusive station as described above is convenient for the user.
In view of the above, an object of the present invention is to provide a printer system which makes it possible to realize a large volume or capacity of an ink tank without providing any waste ink-accommodating section in a portable type printer and which requires no provision of any exclusive station. Another object of the present invention is to provide a main printer to be used for the printer system, and a method for discharging a waste ink.
The present invention has been made taking the foregoing circumstances into consideration. According to a first aspect of the present invention, there is provided which performs printing by discharging an ink onto a recording medium, the printer system including:
According to the first aspect of the present invention, when the sub printer (slave printer) is installed to the main printer (master printer), the waste ink, which is discharged from the second head of the sub printer as a result of the purge or the like, can be accommodated in the waste ink tank provided in the main printer. Therefore, it is unnecessary to prepare any exclusive station which is to be used only for performing the waste ink treatment or processing in the sub printer. The sub printer can be miniaturized, or the space in the casing thereof can be effectively utilized in order to realize the large volume or capacity of the ink tank, because it is unnecessary to provide any waste ink tank in the sub printer. Further, the main printer as described above has the first head, and it is provided with the printer function. Therefore, the main printer can be used not only for the waste ink treatment for the sub printer but also as the ordinary printer. The main printer is equivalent to the stationary type printer which is widely used, for example, in homes, and such a stationary type printer may be substituted with the main printer. Therefore, when the main printer is installed in the space in which the stationary type printer has been originally installed, any excessive installation space is not required, which is convenient.
In the printer system of the present invention, the waste ink tank may also store a waste ink discharged from the first head of the main printer. When the printer system is constructed as described above, one waste ink tank can be used for accommodating both of the waste ink discharged from the first head and the waste ink discharged from the second head. Therefore, it is possible to realize a low price of the printer system, and it is possible to realize the space saving.
In the printer system of the present invention, the main printer may further include a pump by which the waste ink is discharged from the second head when the sub printer is installed to the main printer. When the printer system is constructed as described above, it is unnecessary for the sub printer to provide any pump for discharging the waste ink from the second head. Therefore, the sub printer can be further miniaturized, or the space in the casing thereof can be utilized more effectively in order to realize the large volume or capacity of the ink tank.
In the printer system of the present invention, the waste ink from the first head of the main printer is also discharged by the pump. When the printer system is constructed as described above, one pump can be used as both of the pump for discharging the waste ink from the first head and the pump for discharging the waste ink from the second head. Therefore, it is possible to realize a low price of the printer system, and it is possible to realize the space saving.
In the printer system of the present invention, the printer system may further include a controller which controls the main printer and the sub printer, and the controller may allow the second head of the sub printer to discharge the waste ink when the sub printer is installed to the main printer. When the printer system is constructed as described above, the waste ink can be discharged from the second head of the sub printer by only installing the sub printer to the main printer without performing any other operation, which is convenient.
In the printer system of the present invention, the printer system may further include a controller which controls the main printer and the sub printer and an input device which inputs a predetermined instruction into the controller, and the controller may allow the second head of the sub printer to discharge the waste ink when the sub printer is installed to the main printer and the predetermined instruction is inputted into the input device. When the printer system is constructed as described above, the waste ink can be discharged from the second head of the sub printer in accordance with the timing determined by a user.
In the printer system of the present invention, the main printer may further include an installing section to which the sub printer is detachably installed, a cap for the second head which hermetically seals an ink-discharge surface of the second head, through which the ink is discharged, when the sub printer is installed to the installing section, and a communication passage which makes communication between the cap for the second head and the waste ink tank. When the printer system is constructed as described above, the ink-discharge surface of the sub printer is hermetically sealed by the cap, when the sub printer is installed to the installing section of the main printer. Therefore, the waste ink, which is discharged from the ink discharge surface, can be introduced into the waste ink-accommodating section via the communication passage by sucking the air contained in the cap by the pump.
In the printer system of the present invention, the main printer may include a cap for the first head which hermetically seals an ink-discharge surface of the first head, through which the ink is discharged, and a communication passage which makes communication between the cap for the first head and the waste ink tank. When the printer system is constructed as described above, the ink-discharge surface of the first head is hermetically sealed by the cap. Therefore, the waste ink, which is discharged from the ink discharge surface, can be introduced into the waste ink-accommodating section via the communication passage by sucking the air contained in the cap by means of the pump.
In the printer system of the present invention, the printer system may further include a controller which controls the main printer and the sub printer, and the main printer may have a first tank which stores the ink, and the sub printer has a second tank which stores the ink and which has a volume smaller than that of the first tank; and
the first tank may communicate with the second tank so as to supply the ink from the first tank to the second tank when the sub printer is installed to the main printer. When the printer system is constructed as described above, in addition to the treatment of the waste ink as described above, the second tank having the small volume, which is possessed by the sub printer, can be also supplemented with the ink from the first tank having the large volume which is possessed by the main printer, by installing the sub printer to the main printer. There is such a possibility that the ink may leak from the second head communicated with the second tank when the ink is supplied to the second tank of the sub printer. However, the leaked ink can be accommodated in the waste ink tank.
In the printer system of the present invention, the controller may be operated such that the waste ink is discharged from the second head of the sub printer after supplying the ink from the first tank to the second tank. When the printer system is constructed as described above, the ink is supplied to the second tank of the sub printer, while any bubble, which tends to be mixed especially upon the ink supply, can be removed, and the meniscus can be adjusted in the nozzle hole on the ink discharge surface of the second discharge head. That is, when the ink is supplied from the first tank of the main printer to the second tank of the sub printer, then the bubble is mixed into the communication passage when the both are communicated with each other, and the bubble makes invasion into the second tank of the sub printer in accordance with the ink supply in some cases. However, the bubble can be removed. As described above, there is such a possibility that the ink may leak from the nozzle hole of the second head as the ink is supplied to the second tank. During this process, the meniscus of the nozzle hole is destroyed in some cases. However, the meniscus can be adjusted again by discharging the waste ink after supplying the ink to the second tank.
In the printer system of the present invention, the main printer may include a first regulating section which regulates a flow of the ink between the first tank and the first head; and the controller may allow the waste ink to be discharged from the second head of the sub printer in a state in which the flow of the ink is regulated by the first regulating section between the first tank and the first head. When the printer system is constructed as described above, it is possible to avoid the flow of the ink from the first tank of the main printer to the first head when the waste ink is discharged from the second head in the state in which the sub printer is installed to the main printer.
In the printer system of the present invention, the main printer may include a second regulating section which regulates a flow of the ink between the first tank and the second tank; and the controller may allow the ink to be supplied from the first tank to the first head in a state in which the flow of the ink is regulated by the second regulating section between the first tank and the second tank. When the printer system is constructed as described above, it is possible to avoid the supply of the ink from the first tank of the main printer to the second tank of the sub printer when the ink is supplied from the first tank of the main printer to the first head in the state in which the sub printer is installed to the main printer.
In the printer system of the present invention, the main printer may further include a detecting mechanism which detects that the sub printer is installed to the main printer. In this arrangement, the information about whether or not the sub printer is installed to the main printer can be always retained. The information can be utilized, for example, as the trigger information for the method for processing the waste ink.
According to a second aspect of the present invention, there is provided a main printer which performs printing by discharging an ink onto a recording medium, the main printer including:
a first head which discharges the ink onto the recording medium;
a sub printer-installing section to which a sub printer having a second head which discharges the ink onto the recording medium is detachably installed; and
a waste ink tank which stores a waste ink discharged from the second head when the sub printer is installed to the main printer.
According to the second aspect of the present invention, it is unnecessary to prepare any exclusive station for treating the waste ink discharged from the sub printer as described above. It is possible to miniaturize the sub printer, and it is possible to realize the large volume or capacity of the ink tank (second tank) carried in the sub printer.
In the main printer of the present invention, the waste ink tank may also store a waste ink discharged from the first head. When the main printer is constructed as described above, the waste ink tank can be used for the both as described above. Therefore, it is possible to realize a low price of the main printer, and it is possible to realize the space saving.
In the main printer of the present invention, the main printer may further include a pump by which the waste ink is discharged from the second head when the sub printer is installed to the main printer. When the main printer is constructed as described above, it is unnecessary for the sub printer to provide the pump as described above. Therefore, it is possible to further miniaturize the sub printer, and it is possible to realize the large volume of the ink tank.
In the main printer of the present invention, the waste ink from the first head of the main printer may be also discharged by the pump. When the main printer is constructed as described above, the pump can be used for the both as described above. Therefore, it is possible to realize a low price of the main printer, and it is possible to realize the space saving.
In the main printer of the present invention, the main printer may further include a controller which controls the main printer and the sub printer, a first tank which stores the ink, and a first regulating section which regulates a flow of the ink between the first tank and the first head; and the controller may allow the waste ink to be discharged from the second head of the sub printer in a state in which the flow of the ink is regulated by the first regulating section between the first tank and the first head. When the main printer is constructed as described above, in addition to the treatment of the waste ink of the sub printer as described above, the second tank can be also supplemented with the ink. Further, the ink, which leaks from the second head during the ink supply, can be accommodated in the waste ink tank.
In the main printer of the present invention, the main printer may further include a second regulating section which regulates flow of the ink between the first tank and a second tank possessed by the sub printer, and the controller may allow the ink to be supplied from the first tank to the first head in a state in which the flow of the ink is regulated by the second regulating section between the first tank and the second tank. When the main printer is constructed as described above, the ink can be supplied to the second tank of the sub printer as described above, while any bubble contained in the second tank can be removed. Further, it is possible to adjust the meniscus in the nozzle hole on the ink discharge surface of the second discharge head.
According to a third aspect of the present invention, there is provided a method for discharging a waste ink from a printer system; the printer system including a main printer having a first head which discharges an ink onto a recording medium, a first tank which stores the ink, a first valve which regulates a flow of the ink between the first tank and the first head, and a waste ink tank which stores the waste ink; and a portable type sub printer having a second head which discharges the ink onto the recording medium, and a second valve which regulates a flow of the ink between the first tank and the second tank, the sub printer being detachable with respect to the main printer; wherein the waste ink tank stores the waste ink discharged from the second head of the sub printer installed to the main printer; and the method including detecting installation of the sub printer;
closing the first valve and opening the second valve when the installation of the sub printer is detected; and
discharging the waste ink from the second head.
The method for discharging the waste ink of the present invention may further include supplying the ink from the first tank to the second tank before discharging the waste ink from the second head.
According to a fourth aspect of the present invention, there is provided a method for discharging a waste ink from a printer system, the printer system including:
a main printer having a first head which discharges an ink onto a recording medium, a first tank which stores the ink, a first valve which regulates a flow of the ink between the first tank and the first head, and a waste ink tank which stores the waste ink; a portable type sub printer having a second head which discharges the ink onto a recording medium, and a second valve which regulates a flow of the ink between the first tank and the second tank, the sub printer being detachable with respect to the main printer; and an input device which inputs a predetermined instruction, wherein the waste ink tank stores the waste ink discharged from the second head of the sub printer installed to the main printer, and the method comprising:
detecting installation of the sub printer;
closing the first valve and opening the second valve when the installation of the sub printer is detected and the predetermined instruction is inputted from the input device; and
discharging the waste ink from the second head.
According to the printer system, the main printer, and the sub printer concerning the present invention, it is possible to allow the ink tank to have the large volume without providing any waste ink tank in the portable type printer, while it is unnecessary to provide any exclusive station.
An explanation will be specifically made below with reference to the drawings about a printer system according to an embodiment of the present invention and a main printer and a sub printer for constructing the printer system.
In this embodiment, the main printer 2 is a multifunction apparatus. The main printer 2 has a printer section 6 which is provided at a lower portion of the casing 3 and which has a first discharge head (see
A paper discharge port 9 is formed over the paper feed port 8 of the front wall 3a. The recording paper, on which the image is formed by the printer section 6, is discharged from the paper discharge port 9. The scanner section 7 is a so-called flat bed scanner. The scanner section 7 has a manuscript stand (not shown) which is formed on the upper surface of the casing 3, and a manuscript cover 10 which is provided openably/closably to cover the manuscript stand. An operation panel 11, which is used to operate the printer section 6 and the scanner section 7, is provided in front of the manuscript cover 10.
A tank-installing section 12, to which first ink tanks (ink cartridges) 13 are detachably installed, is provided on the front wall 3a of the casing 3 at a side portion with respect to the paper feed port 8 and the paper discharge port 9. The first ink tank 13 has a large volume or capacity (for example, 10 cc), which stores the ink to be discharged to the recording paper when the image is formed by the printer section 6. When the residual amount of the ink in the first ink tank 13 is not more than a predetermined value as the ink is discharged onto the recording paper, then the first ink tank 13 is detached from the tank-installing section 12, and a new first ink tank 13, which is fully filled with the ink, can be installed. In this embodiment, those used as the inks employed to form the image include four color inks, i.e., cyan (C), magenta (M), and yellow (Y) as the dye inks and black (Bk) as the pigment ink. Therefore, the four first ink tanks 13 in total, which correspond to the respective colors, are detachably installed to the tank-installing section 12.
A sub printer installing port 14, to which the sub printer 4 is installed, is provided on the front wall 3a of the casing 3 at a side portion with respect to the tank-installing section 12. As described above, both of the tank-installing section 12 and the sub printer installing port 14 are provided on the identical wall surface (front wall 3a) of the casing 3. Therefore, the degree of freedom is increased for the installation of the main printer 2 as compared with a case in which the both are provided on distinct wall surfaces, which is convenient for the user.
A second discharge head 23 (see
As shown in
The sub printer 4 is provided with a roller or rollers (not shown) for maintaining a constant distance from the recording paper, for example, when the manual scanning is performed on the recording paper. The position-detecting section 30 is capable of detecting the position of the sub printer 4 in accordance with the angle of rotation of the roller. The controller 27 controls the ink discharge from the second discharge head 23 on the basis of the information in relation to the position inputted from the position-detecting section 30.
The sub printer 4 can perform the purge process to discharge the waste inks from the second discharge head 23 in a state of being installed to the main printer 2. Further, the inks can be supplied from the first ink tanks 12 installed to the main printer 2 to the second ink tanks 20 of the sub printer 4. An explanation will be made below in respective embodiments about forms of connection brought about when the sub printer 4 is installed to the main printer 2.
As shown in
Therefore, when the first ink tanks 13 are installed to the tank-installing section 12, the first ink tanks 13 and the first discharge head 41 are communicated with each other via the tubes 42 in a state in which the first valves 43 are opened. Therefore, the inks of the respective colors can be independently supplied from the first ink tanks 13 to the first discharge head 41. On the other hand, the inks are not allowed to flow via the tubes 42 between the first ink tanks 13 and the first discharge head 41 in a state in which the first valves 43 are closed, because the closing is effected between the first ink tanks 13 and the first discharge head 41.
As shown in
As shown in
Main-side connecting sections 35 are provided in the sub printer installing port 14 in the main printer 2. When the sub printer 4 is installed to the sub printer installing port 14, the main-side connecting sections 35 are connected to the subsidiary-side connecting sections 21 (see
The pump 45 described above is connected to the controller 50 via a pump driver 54. Further, the valves 37, 43 are connected to the controller 50 via a valve driver 55. The pump driver 54 and the valve driver 55 output driving signals on the basis of control signals supplied from the controller 50 to drive the pump 45 and the valves 37, 43 in accordance with the driving signals.
Further, a sub printer detecting section 56 is connected to the controller 50. The sub printer detecting section 56 detects whether or not the sub printer 4 is connected to the main printer 2, in particular whether or not the sub printer 4 is installed to the sub printer installing port 14 to connect the subsidiary-side connecting sections 21 with respect to the main-side connecting sections 35. The information thereof is outputted to the controller 50.
Next, an explanation will be made with reference to flow charts shown in
As shown in
If it is judged by the controller 50 in Step 1 that the sub printer 4 is installed to the main printer 2, then the controller 50 regulates the ink flow between the first ink tanks 13 and the first discharge head 41 by closing the first valves 43 (S2), and the second valves 37 are opened (S3). Accordingly, the passages, which range from the first ink tanks 13 of the main printer 2 via the sub printer 4 and the second cap 33 to arrive at the waste ink-accommodating section 46, are in the communicated state. Subsequently, when the pump 45 is driven to effect the sucking (S4), the purge process is performed, in which the waste inks are forcibly discharged from the nozzle holes (not shown) of the second discharge head 23 of the sub printer 4. The waste inks, which are discharged from the second discharge head 23 by means of the purge process, are accommodated in the waste ink-accommodating section 46 provided for the main printer 2. The inks do not flow from the first ink tanks 13 to the first discharge head 41 during the purge process for the sub printer 4, because the first valves 43 are closed.
When the sub printer 4 is installed to the main printer 2, any bubble is mixed between the main-side connecting sections 35 and the subsidiary-side connecting sections 21 in some cases. The bubble cannot be discharged to the outside in the state in which the sub printer 4 is installed to the main printer 2. As described later on with reference to
When the printer system 1 is operated as described above, it is unnecessary for the user to worry about the timing at which the purge process is to be performed for the sub printer 4. The purge process can be automatically executed by merely installing the sub printer 4 to the main printer 2 when the sub printer 4 is not used.
If it is judged by the controller 50 that the purge instruction signal is not outputted from the operation panel 11 (S12: NO), the operation of Step 12 is repeated. If it is judged that the purge instruction signal is outputted (S12: YES), the purge process is executed in the same manner as in Steps 2 to 4 having been explained with reference to
When the printer system 1 is operated as described above, the purge process can be performed for the sub printer 4 at the timing determined by the user. Therefore, for example, even when the sub printer 4 is installed to the main printer 2 during the period in which the image is formed on the recording paper by discharging the inks from the first discharge head 41 by means of the main printer 2, then the image-forming operation performed by the main printer 2 is not interrupted, and the purge process is not executed for the sub printer 4. After the completion of the image formation by the main printer 2, the user can perform the purge process for the sub printer 4 at the desired timing.
Subsequently, the controller 50 drives the pump 45 to effect the sucking so that the inks are supplied to the second ink tanks 20 (S24). That is, the first ink tanks 13 of the main printer 2 and the second ink tanks 20 of the sub printer 4 are communicated with each other at the point of time at which Step 23 is completed. Therefore, the inks contained in the first ink tanks 13 can be supplied to the second ink tanks 20 by driving the pump 45. When the ink supply is completed, the controller 50 executes the purge process by driving the pump 45 to effect the sucking so that the waste inks are forcibly sucked from the second discharge head 23 (S25). Accordingly, as having been explained above, any bubble, which enters the flow passage in the second discharge head 23, can be discharged to the outside together with the waste inks. The waste inks are accommodated in the waste ink-accommodating section 46 provided for the main printer 2. The meniscus of the second discharge head 23 can be also adjusted by means of the purge process in the same manner as the process shown in
The driving mode of the pump 45, which is adopted in order to supply the ink as shown in Step 24 in
As explained above with reference to
As shown in
The pump 45, which is provided for the main printer 2, can be also used as the pump to purge the first discharge head 41. Further, the pump 45 can be also used as the pump to purge the second discharge head 23 of the sub printer 4 in the state in which the sub printer 4 is installed to the main printer 2. In this way, in the printer system 1 according to the first embodiment, the single pump 45 can be used to execute the ink supply to the first ink tanks 13, the purge for the first discharge head 41, and the purge for the second discharge head 20. Therefore, it is unnecessary to provide individual pumps for the respective processes. It is possible to realize the small size and the low price of each of the main printer 2 and the sub printer 4.
The foregoing explanation has been made for the case in which the inks of all of the colors are discharged in the purge process for the sub printer 4. However, the purge process can be also performed such that the ink or inks of arbitrary color or colors is/are selectively discharged. In this procedure, the second valve 37 is opened so that the ink flow is allowed to flow for only the route which is included in the routes ranging from the first ink tanks 13 via the sub printer 4 to arrive at the waste ink-accommodating section 46 and through which the ink of the color intended to be discharged from the second discharge head 23 by means of the purge process is allowed to flow, and the other second valves 37 and all of the first valves 43 are closed, while the pump 45 is driven to effect the sucking. Accordingly, it is possible to perform the purge process in which only the ink of the desired color is discharged from the second discharge head 23.
In the arrangement shown in
In the case of the printer system 1A constructed as described above, the purge process can be executed for the first discharge head 41 for each of the colors. Further, the printer system 1A is provided with the pump 45b exclusively used for the ink supply and the purge process for the sub printer 4. Therefore, the pump 45b may have any specification suitable for the ink supply and the purge process for the sub printer 4. The ink supply operation for the sub printer 4 by the printer system 1A and the function and the effect thereof are the same as those having been already explained with reference to
Regarding the sub printer 4 of the printer system 1B, the purge process can be selectively performed for any arbitrary ink, and any arbitrary ink can be selectively supplied to the second ink tank 20.
When the purge process is performed for the ink of the selected color, it is possible to decrease the number of valves of the first valves 43 and the second valves 37 to be driven. For example, when the purge process is performed for the ink of a certain color, the following procedure is available. That is, only one second valve 37, corresponding to this color, among the four second valve is opened, the four second valves 37 regulating the ink flow between the first ink tanks 13 and the second ink tanks 20. In addition, only one first valve 43, corresponding to this color, among the four first valves 43 is closed, the four first valves regulating the ink flow between the first ink tanks 13 and the first discharge head 41. In this state, the pump 45c corresponding to this color is driven to effect the sucking. As described above, it is enough to drive the two valves and the one pump 45c which are included in the large number of the provided valves 37, 43 and the large number of the provided pumps 45c. The situation is equivalent as well when the ink of the selected color is supplied to the second ink tank 20.
In the case of the printer system 1C, the second valves 37 provided in the printer systems 1, 1A, 1B are not required in the passages ranging from the first ink tanks 13 via the second ink tanks 20 to arrive at the waste ink-accommodating section 46. In the printer system 1C, the purge process and the ink supply process can be also selectively performed in relation to any arbitrary ink in the same manner as in the printer system 1B. Further, it is possible to decrease the number of the first valves 43 to be driven when these processes are performed.
Even in the case of the printer system 1D, the purge process and the ink supply process can be selectively performed for any arbitrary ink in the same manner as in the printer system 1C. Further, it is possible to decrease the number of the first valve or valves 43 to be driven when such a process is performed.
Even in the case of the printer system 1E, the purge process and the ink supply process can be selectively performed for any arbitrary ink in the same manner as in the printer system 1D. Further, it is possible to decrease the number of the first valve or valves 43 to be driven when such a process is performed.
Even in the case of the printer system 1F, the purge process can be selectively performed for any arbitrary ink in relation to the sub printer in the same manner as in the printer system 1B. It is possible to selectively supply any arbitrary ink to the second tank. Further, it is possible to decrease the number of the first valve or valves 43 and second valve or valves 37 to be driven when the purge process is performed for the ink of the selected color. Further, the two waste ink-accommodating sections 46a, 46b are provided corresponding to the main printer 2 and the sub printer 4. Therefore, they can be constructed corresponding to the ways of use thereof respectively, and it is possible to optimize the layout.
As exemplified above in the first to eighth embodiments, the printer systems 1, 1A to 1G according to the embodiments of the present invention are capable of performing the purge process for the sub printer 4 by installing the sub printer 4 to the main printer 2 having the printer function. That is, the main printer 2 is capable of forming the image on the recording paper by discharging the inks from the first discharge head, because the main printer 2 has the printer function. Further, the main printer 2 is also capable of performing the purge process for the sub printer 4. The main printer 2 is provided with both of the printer function and the purge process function for the sub printer 4. Therefore, it is unnecessary to prepare any exclusive station specialized to the ink supply in order to supply the inks to the sub printer 4.
In this arrangement, the waste ink-accommodating sections 46, 46a, 46b and the pumps 45, 45a to 45e are carried on the main printer 2. Therefore, it is possible to miniaturize the sub printer 4, or it is possible to effectively utilize the space in the casing 5 of the sub printer 4 in order to realize the large volumes of the second ink tanks 20.
The pumps 45, 45a to 45e are provided at the intermediate positions of the respective tubes. However, the pumps 45, 45a to 45e are capable of being arranged at arbitrary positions on the tubes. For example, the pumps 45, 45a to 45e may be provided at the ends of the respective tubes. When the first ink tank 13 of the main printer 2 is provided with any pressurizing pump, it is not necessarily indispensable that the sucking pumps 45, 45a to 45e are provided. The pressurizing pump may be operated in place of the sucking pump in operations S4, S15, S24, and S25 shown in
The main printer is not necessarily the multifunction machine having, for example, the scan function. The main printer may have only the printer function. The number and the type of the ink or inks of each of the main printer and the sub printer may be arbitrary. For example, the main printer may be a full color printer for discharging the four color inks of black, cyan, magenta, and yellow, and the sub printer may be a monochrome or black and white printer for discharging only the black ink. In this case, only the black ink is supplied when the sub printer is installed to the main printer. The sub printer may be of the charging type. For example, the sub printer may be charged by receiving the supply of the electric power from the main printer during the period in which the sub printer is installed to the main printer. However, there is no limitation thereto.
As described above, the present invention makes it possible to realize the large volume of the ink tank, because any waste ink-accommodating section is not provided in the portable type printer. Further, the present invention is applicable to the printer system for which it is unnecessary to provide any exclusive station.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2007071195 | Mar 2007 | JP | national |
