JP2014061684A - Printing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To determine, while reducing the burden on a user, a page from which printing processing is resumed after being interrupted due to paper jam which has occurred when temporarily accumulating printed sheets of printing paper in a stack tray and discharging the same together.SOLUTION: In a printing system, printed sheets of printing paper S, on which printing images are printed at a printing section 140 of a printer unit 100, are discharged from a side paper discharge section 160, and after being temporarily accumulated in a temporary stack tray section 210 of a post-processing unit 200, are transferred together to a post-processing section (1) 230 and a post-processing section (2) 240 to be post-processed. At this time, a paper detection sensor 222 monitors, for a predetermined period, a presence of the sheet of printing paper S on a conveyance path immediately before the temporary stack tray section 210, when a control section 190 interrupts the printing processing after detecting a paper jam occurring in the printer unit 100 or the post-processing unit 200. Then, when a state of the sheet of printing paper S changes from a detected state to a non-detected state in the predetermined period, a print resumption page after the jam being resolved is changed to the one after the original page.

Description

  The present invention relates to a printing system in which printed printing paper is temporarily stored in a stack tray and collectively discharged after post-processing.

  When the printing process is interrupted by the printing device and the printing process is interrupted, the image of the last page of print paper that has been ejected is displayed on the output tray, and the last page that is actually ejected to the output tray A technique has been proposed in which a restart page is designated when necessary as a result of collation with a print sheet to prevent the shift of the restart page (for example, Patent Document 1).

JP 2003-305906 A

  It is not easy for the user to correctly specify the resume page. This is because, for example, in the case of duplex printing, even if the last page of the discharged print paper matches the image of the displayed last page, the print paper of the last page is printed only on one side (front side). If not, printing must be resumed from the last page, not the next page. However, in order to make such a determination, the user needs some familiarity.

  In addition, if you temporarily store printing paper in the stack tray before paper discharge and collectively perform post-processing such as stapling or punching, the paper after the last page discharged to the paper discharge tray The printing paper of the stack tray on which is printed can be used as it is. For this reason, in order for the user to determine the restart page, it is necessary to account for the printing paper on the stack tray.

  In addition, unlike the paper discharge tray, the stack tray is housed in the casing of the printing device and often does not exist where the user can see it, so check the print paper discharged to the stack tray each time. Thus, it is a burden on the user to determine the restart page of the printing process after the jam is resolved.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to perform a printing process that is interrupted due to the occurrence of a jam when a printed print sheet is temporarily stored in a stack tray and then collectively discharged after post-processing. An object of the present invention is to provide a printing system that can reduce the burden on the user to determine the page to be resumed.

In order to achieve the above object, a printing system according to the present invention described in claim 1 comprises:
In a printing system that prints a printed image on a fed printing paper, transfers the printed printing paper to a stack tray, temporarily stores it, performs post-processing, and then discharges the processed paper together. ,
A paper detection sensor for detecting the presence or absence of the printing paper at a location immediately before the stack tray;
Jam detecting means for detecting the occurrence of jam in the printing paper;
Interrupting means for interrupting the post-processing printing process during the detection of the occurrence of jam of the printing paper;
From the restart page according to the detection state of the printing paper by the paper detection sensor during a predetermined period from the start time of the interruption of the printing processing with post processing, the printing processing with post processing after the detection of the occurrence of jam of the printing paper is completed. Resuming means for resuming
It is characterized by providing.

  According to the printing system of the first aspect of the present invention, when the occurrence of a jam in the printing paper is detected and the printing process with post-processing is interrupted, the conveyance of the printing paper is immediately stopped at the start of the interruption of the printing process. Rather, it is stopped after being transported somewhat by inertia.

  Therefore, printed paper that has been transported to just before the stack tray when the printing process is interrupted due to the occurrence of a jam may be ejected to the stack tray later due to inertia, or the transportation is stopped just before it is ejected. There is also a case.

  Then, if the detection state of the print paper at the location immediately before the stack tray changes from yes to no during the predetermined period from the start of the print processing interruption, the printed It is considered that the printing paper was transferred to the stack tray by inertia during a predetermined period.

  On the other hand, if the detection state of the print paper at the location immediately before the stack tray remains unchanged or not during the predetermined period from the start of the printing process interruption, the content of the printed print paper transferred to the stack tray is It is considered that there is no change between the start of the interruption of the printing process and the time when the predetermined period has elapsed thereafter.

  Even if the detection state of the print paper at the location immediately before the stack tray changes from none to yes during the predetermined period from the start of the print processing interruption, it did not reach the stack tray immediately at the start of the print processing interruption. It is considered that the printed printing paper has only been transferred to just before the stack tray by inertia during a predetermined period, and has not been transferred to the stack tray.

  Therefore, according to the detection state of the printing paper at the position immediately before the stack tray during the predetermined period from the start of the interruption of the printing process, it is determined which page to restart the printing process is to be printed on the stack tray. This can be determined accurately in consideration of the transfer state of the printing paper. As a result, it is possible to determine a page for resuming the printing process interrupted due to the occurrence of a jam while reducing the burden on the user.

  Further, the printing system of the present invention described in claim 2 is the printing system of the present invention described in claim 1, wherein the resuming unit is configured to perform the interval between the start time of the post-processing printing process and the predetermined period. When the detection state of the printing paper by the paper detection sensor has changed from presence to absence, the page that has been the next page after the last page transferred to the stack tray on the control at the time when the post-processing printing process is interrupted The restart page is further changed to the next page.

  According to the printing system of the present invention described in claim 2, in the printing system of the present invention described in claim 1, the detection of the printing paper at the position immediately before the stack tray during a predetermined period from the start of the interruption of the printing process. When the state changes from “present” to “no”, it is considered that the printed printing paper immediately before the stack tray at the start of the interruption of the printing process is transferred to the stack tray by inertia during a predetermined period.

  However, since the last page that has been transferred to the control stack tray is the previous page that has already been transferred to the stack tray at the start of the interruption of the printing process, in this case, the resume page is referred to as the control stack. Change from the next page of the last page transferred to the tray to the next page. As a result, even if another printed page of printed paper is transferred to the stack tray during a predetermined period from the start of the interruption of the printing process, the restart page of the printing process can be accurately determined.

  Furthermore, the printing system of the present invention described in claim 3 is the printing system of the present invention described in claim 1 or 2, wherein the sheet detection is performed during the predetermined period from the start time of the post-processing print processing interruption. Confirmation instruction means for instructing confirmation of a jam occurrence state of the printing paper in a confirmation area including a position immediately before the stack tray when the detection state of the printing paper by the sensor changes from presence to absence; and the resume page Resuming page designating means for designating the resuming page, wherein the resuming means is designated when the resuming page is designated by the resuming page designation means by the time when the post-processing print process is resumed. The post-processing print process is resumed from the resume page.

  According to the printing system of the present invention described in claim 3, in the printing system of the present invention described in claim 1 or 2, printing at a position immediately before the stack tray during a predetermined period from the start of interruption of the printing process. In cases other than when the paper detection status has changed from yes to no, the content of the printed paper that has been transferred to the stack tray changes between when printing processing is interrupted and when a predetermined period has passed. It is thought that it is not.

  On the other hand, if the detection state of the print paper at the location immediately before the stack tray changes from yes to no during the predetermined period from the start of the printing process interruption, the printed paper that has been printed during the predetermined period must be transferred to the stack tray. For example, there is a possibility that a jam has occurred between the sheet detection sensor and the stack tray.

  Therefore, a jam in the confirmation area including the position immediately before the stack tray is only when the detection state of the printing paper at the position immediately before the stack tray changes from yes to no during the predetermined period from the start of the printing process interruption. The user is instructed to confirm the occurrence state, and the user is allowed to specify a restart page corresponding to the confirmation result.

  As a result, if the detected state of the printing paper at the location immediately before the stack tray has not changed from “Yes” to “None” at least during a predetermined period from the start of the interruption of the printing process, the printing process suspended due to the occurrence of a jam is resumed. It is possible to reduce the burden on the user to determine the page to be determined.

  Note that in the printing system according to the third aspect of the present invention, the restart page designating unit defaults to a page next to the last page that has been transferred to the stack tray for control at the time when the post-processing print process is interrupted. The print system may be configured to display a print resume page designation screen included as the resume page on the display and accept the designation of the resume page on the print resume page designation screen.

  With such a configuration, it is possible to visually check the current resume page together with the print paper jam occurrence state in the confirmation area immediately before the stack tray, and then specify an appropriate page as the resume page.

  According to the present invention, it is possible to determine a page for resuming the printing process interrupted due to the occurrence of a jam while reducing the burden on the user.

It is explanatory drawing which shows schematic structure of the printing system which concerns on one Embodiment of this invention. FIG. 2 is a block diagram illustrating a configuration of a control system of the printer unit in FIG. 1. FIG. 3 is an explanatory diagram illustrating a print resume page designation screen displayed on the display of the printer unit of FIG. 1. It is a block diagram which shows the structure of the control system of the post-processing unit of FIG. 3 is a flowchart illustrating a main processing procedure from occurrence of a jam to resumption of printing performed by a CPU of a control unit of the printer unit in FIG. 2 executing a ROM program.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a schematic configuration of a printing system according to an embodiment of the present invention.

  The printer system 1 according to the present embodiment illustrated in FIG. 1 includes a printer unit 100 that performs printing on the printing paper S, and a post-processing unit (finisher unit) 200 that performs post-processing on the printing paper S. .

(Overall configuration of printing device)
The printer unit 100 according to the present embodiment forms an image on the printing paper S that is transported on an annular transport path (not shown). This transport path includes a transport path (not shown) from the side paper feed tray 120 and the paper feed tray 130 to the paper discharge tray 150 via the printing section 140 and the side paper feed tray 120 and the paper feed tray 130 to the printing section. And a conveyance path (not shown) that reaches the side paper discharge unit 160 to which the post-processing unit 200 is connected.

  When the printing paper S is transported along the transport path described above, an image is printed on the upper surface of the printing paper S in the printing unit 140. The printed printing paper S is discharged from the paper discharge tray 150 when post-processing is not performed. However, when performing double-sided printing, the paper is reversed in a reverse path (not shown) in the paper discharge tray 150 and conveyed again to the printing unit 140, and an image is printed on the back surface.

  Note that the printing unit 140 can be configured by an image forming unit such as an inkjet method, an electrophotographic method, or a stencil printing method.

  When the post-processing unit 200 post-processes the printing paper S on which an image is printed on one side or both sides in this way, it is conveyed to the side paper discharge unit 160 and delivered to the post-processing unit 200.

  Various controls in the printer unit 100 are performed by the control unit 190. The control unit 190 is configured by a processor such as a CPU or DSP (Digital Signal Processor), memory, hardware such as other electronic circuits, software such as a program having the function, or a combination thereof. Arithmetic module.

  Then, the control unit 190 virtually constructs various functional modules by appropriately reading and executing the program, and the various functional modules thus constructed perform various processes related to image data, operation control of each unit, and various user operations. Perform the process. In addition, a touch panel display 170 is connected to the control unit 190, and a user's instruction and setting operation can be received by performing a touch operation while referring to the display on the display 170.

  The post-processing unit 200 includes a temporary stack tray unit 210 (corresponding to a stack tray in claims) and post-processing units (1), (2) 230, 240. The post-processing unit (1) 230 and the post-processing unit (2) 240 are respectively a punch processing unit for punching holes in a bundle of print sheets S, a staple processing unit for stapling, and a saddle stitching (saddle folding) process. Consists of a processing unit and the like.

  The printing paper S discharged from the side paper discharge unit 160 of the printer unit 100 is temporarily stored in the temporary stack tray unit 210 until a bundle to be post-processed, and the post-processing unit (1) 230 corresponding to the post-processing content or The post-processing unit (2) 240 is collectively transported via the transport unit 220.

  A bundle of print sheets S post-processed by the post-processing unit (1) 230 and the post-processing unit (2) 240 is discharged to the corresponding discharge trays 250 and 260.

  Various controls in the post-processing unit 200 are performed by the control unit 270. Like the control unit 190 of the printer unit 100, the control unit 270 is a processor such as a CPU or DSP (Digital Signal Processor), a memory, hardware such as other electronic circuits, or a program having the function. An arithmetic module configured by software or a combination thereof.

  Then, the control unit 270 virtually constructs various function modules by appropriately reading and executing the program, and performs various processes for post-processing on the bundle of print sheets S by the constructed function modules. . Settings regarding post-processing are notified from the control unit 190 of the printer unit 100 to the control unit 270.

  FIG. 2 is a block diagram showing the configuration of the control system of the printer unit 100. In addition to the printing unit 140 described with reference to FIG. 1, the printer unit 100 according to the present embodiment includes a scanner unit 110 that reads a document image on a document and outputs an image signal, as shown in FIG. A display 170 for input and display, a transport unit 180 that transports the printing paper S in the transport path of the printer unit 100, and a control unit 190 for overall control are provided. The printing unit 140 can also print (record) a document image on the printing paper S (one side or both sides) based on the image signal output from the scanner unit 110.

  The control unit 190 is connected to the network via the external interface unit 194. For this network, for example, a 100BASE-TX wired LAN is used. The control unit 190 receives a print job of a document image from a client terminal (not shown) connected to the network. This print job includes postscript data and print environment data. The control unit 190 generates raster data of the original image from the received postscript data of the print job. The printer unit 100 causes the printing unit 140 to print the original image on the printing paper S under the conditions specified in the printing environment information of the print job.

  In addition, the control unit 190 performs a printing process on the printing paper S by a print job, and a conveyance and discharge process of the printing paper S by the conveyance unit 180 according to whether or not post-processing is performed. The print paper S of the print job with post-processing is delivered to the post-processing unit 200, and the print paper S of the print job without post-processing is discharged from the paper discharge tray 150 in principle.

  The transport unit 180 includes a plurality of jam detection sensors 181 that detect the occurrence of jam of the print paper S at various points on the transport path of the printer unit 100, and a paper detection sensor 182 that detects the print paper S that passes through the side paper discharge unit 160. And have. These sensors 181 and 182 are connected to the CPU 191 of the control unit 190.

  Further, the above-described display 170 is connected to the CPU 191 of the control unit 190. This display 170 is used as an input operation unit for a user to input copying conditions such as the number of copies and a copying magnification when the printer unit 100 is used in a copying mode in which a document image set on the scanner unit 110 is copied and printed. Can do.

  The CPU 191 of the control unit 190 described above controls the operations of the scanner unit 110 and the printing unit 140 according to the contents input and set from the display 170 based on the program and setting information stored in the ROM 192.

  In particular, when the jam detection sensor 181 detects the occurrence of a jam of the printing paper S on the conveyance path, the CPU 191 performs the conveyance of the printing paper S by the conveyance unit 180 until the jam detection sensor 181 does not detect the occurrence of the jam. The printing process of the image on the printing paper S by the printing unit 140 is interrupted. Further, the CPU 191 notifies the control unit 270 of the post-processing unit 200 described later, and interrupts various processes on the post-processing unit 200 side.

  Further, when the CPU 191 receives a notification from the control unit 270 of the post-processing unit 200, which will be described later, that the occurrence of a jam of the printing paper S has been detected on the post-processing unit 200 side, the CPU 191 notifies the control unit 270 to perform post-processing. Various processes on the unit 200 side are also interrupted. In parallel with this, the CPU 191 interrupts the conveyance of the printing paper S by the conveyance unit 180 and the printing process of the image on the printing paper S by the printing unit 140. In addition, when the CPU 191 resumes the interrupted transport of the printing paper S, the printing process of the image on the printing paper S, and the various processes on the post-processing unit 200 side when the occurrence of the jam occurrence is finished, Whether to print an image from the page on the printing paper S (resumed page) is determined from the detection content of the paper detection sensor 222 notified from the control unit 270 of the post-processing unit 200 during the interruption.

  It should be noted that the CPU 191 displays the above-described resume page when resuming the transportation of the suspended printing paper S and the printing process on the print resume page designation screen shown in the explanatory diagram of FIG. Can be specified.

  On this print resumption page designation screen, a message M instructing confirmation of the jam occurrence state of the printing paper S at the conveyance path location (corresponding to the confirmation area in the claims) immediately before the temporary stack tray section 210 of the post-processing unit 200. Is displayed. This message M also includes a word that prompts the user to designate a change of the print resume page as necessary.

  In addition, the image of the page set as the default print resume page by the control unit 190 is displayed on the print resume page designation screen, and an arrow for changing the print resume page to the previous and next pages is displayed on the left and right sides thereof. An image is displayed. By touching the arrow image, the user can specify to change the print resume page to the previous or next page. It is also possible to input to cancel the printing process without resuming printing.

  The control unit 190 of the printer unit 100 shown in FIG. 2 is provided with a RAM 193, and the RAM 193 stores the number of prints input from the display 170 and various setting contents as needed. The RAM 193 has a frame memory area. In this frame memory area, the raster data of the original image generated by the CPU 191 from the postscript data of the print job input to the control unit 190 is temporarily stored until it is output to the printing unit 140. .

  The control unit 190 is provided with an external storage device 195. The external storage device 195 stores the display 170, the color matching system and printer engine of the printing unit 140, the driver software of the scanner unit 110, and the like by dividing the area to be used.

  An external interface unit 274 (see FIG. 4), which will be described later, of the post-processing unit 200 is connected to the control unit 190 of the printer unit 100 via the external interface unit 194. For this connection, for example, a 100BASE-TX wired LAN is used. The control unit 190 outputs, to the post-processing unit 200, a command indicating the processing content input from the display 170 regarding the post-processing applied to the printed printing paper S (see FIG. 1).

  FIG. 4 is a block diagram showing the configuration of the control system of the post-processing unit 200. The post-processing unit 200 includes a control unit 270 for overall control in addition to the temporary stack tray unit 210, the transport unit 220, the post-processing unit (1) 230, and the post-processing unit (2) 240.

  The transport unit 220 detects a jam detection sensor 221 that detects the occurrence of a jam of the print paper S on the transport path immediately before the temporary stack tray unit 210, and detects the print paper S transported to the temporary stack tray unit 210 from the transport path. And a paper detection sensor 222. These sensors 221 and 222 are connected to the CPU 271 of the control unit 270.

  The control unit 270 includes a CPU 271 that controls the operation of the post-processing unit 200 based on the program and setting information stored in the ROM 272. An external interface unit 194 (see FIG. 2) of the printer unit 100 is connected to the CPU 271 via the external interface unit 274.

  The CPU 271 receives, from the control unit 190 (see FIG. 2) of the printer unit 100, a command indicating the post-processing content input and set by the display 170 of the printer unit 100. In the RAM 273 connected to the CPU 271, various setting contents related to the post-processing performed by the post-processing unit 200 notified from the control unit 190 by a command are stored as needed.

  The CPU 271 of the control unit 270 determines the control contents of each part of the post-processing unit 200 according to the contents of the mode and the like which are stored as commands in the RAM 273 and set by the display 170 of the printer unit 100. Thereby, the post-processing unit 200 can operate in conjunction with the operation on the printer unit 100 side.

  The control unit 270 is provided with an external storage device 275. The external storage device 275 stores driver software and the like for each part of the post-processing unit 200.

  Then, the control unit 270 performs post-processing according to the content instructed from the control unit 190 of the printer unit 100 on the print paper S of the print job with post-processing delivered from the printer unit 100, and discharges the paper. To do.

  In addition, when the jam detection sensor 221 detects the occurrence of a jam on the printing paper S on the conveyance path, the control unit 270 detects the jamming of the printing paper S by the conveyance unit 220 until the jam detection sensor 221 does not detect the occurrence of the jam. The post-processing on the printing paper S by the conveyance and the post-processing unit (1) 230 and the post-processing unit (2) 240 is interrupted. Further, the CPU 271 notifies the control unit 190 of the printer unit 100 that the occurrence of the jam of the printing paper S is detected at any time until the jam detection sensor 221 no longer detects the occurrence of the jam. Further, the CPU 271 always notifies the control unit 190 of the printer unit 100 of the output content of the paper detection sensor 222 regardless of whether the jam detection sensor 221 detects the occurrence of a jam.

  Further, when the CPU 271 receives a notification from the control unit 190 of the printer unit 100 that the occurrence of a jam of the printing paper S has been detected on the printer unit 100 side, the CPU 271 until the notification ends, Various processes in the post-processing unit (1) 230 and the post-processing unit (2) 240 are also interrupted.

  Next, with reference to the flowchart of FIG. 5, a description will be given of a main processing procedure from occurrence of a jam to resumption of printing executed by the CPU 191 of the control unit 190 of the printer unit 100 executing a program stored in the ROM 192. . The CPU 191 repeatedly executes the procedure of the flowchart of FIG. 5 while the printer unit 100 is powered on.

  First, the CPU 191 also refers to the notification from the control unit 270 of the post-processing unit 200 to check whether any jam detection sensor 181 or 221 detects the occurrence of a jam in the printing paper S (step S1). . If the occurrence of a jam is not detected (NO in step S1), the series of processes is terminated and the processes after step S1 are executed again.

  On the other hand, when the occurrence of a jam is detected (YES in step S1), the conveyance of the printing paper S by the conveyance unit 180 and the printing operation by the printing unit 140 are stopped, and the control unit 270 of the post-processing unit 200 performs post-processing. Various processes on the unit 200 side are stopped, the printing process is interrupted (step S3), and the output of the sheet detection sensor 182 of the side paper discharge unit 160 is monitored for a predetermined period (step S5).

  Then, it is confirmed whether or not the output of the paper detection sensor 222 notified from the control unit 270 of the post-processing unit 200 has changed from the detection state of the printing paper S to the non-detection state during the predetermined period (step S7). ) If not changed (NO in step S7), after specifying the print resumption page based on the internal data (printer internal data) of the printer unit 100 (step S9), the process proceeds to step S21 to be described later.

  Here, the print resumption page based on the printing press internal data specified in step S9 is specifically counted under the control of the CPU 191 at the time when the printing process is interrupted in step S3 (at the start of interruption). This is the page next to the page transferred from the side paper discharge unit 160 to the post-processing unit 200 (the temporary stack tray unit 210 thereof).

  In other words, the printing paper S that has already been transferred to the temporary stack tray unit 210 at the start of the interruption of the printing process, together with the printing paper S that is transferred to the temporary stack tray unit 210 after resuming the printing process due to jam removal, the post-processing unit (1 ) 230 and the post-processing unit (2) 240 can be collectively transported for post-processing. For this reason, when printing is resumed, the first page to be printed may be the next page after the last page already transferred to the temporary stack tray unit 210.

  On the other hand, when the output of the paper detection sensor 222 changes from the detection state of the print paper S to the non-detection state during a predetermined period from the start of the interruption of the printing process (YES in step S7), the CPU 191 A print restart page designation screen is displayed on the display 170 (step S11). Then, the CPU 191 checks whether or not the generated jam has been resolved based on the outputs of the jam detection sensors 181 and 221 (step S13).

  If the jam has not been resolved (NO in step S13), step S13 is repeated until the jam is resolved. If the jam is resolved (YES in step S13), the CPU 191 displays the print resume page on the print resume page designation screen in FIG. Is checked (step S15).

  When the print resumption page is not designated on the print resumption page designation screen (NO in step S15), the CPU 191 designates the print resumption page based on the internal data (printer internal data) of the printer unit 100 (step S15). S17), the process proceeds to step S21.

  Here, the print resumption page based on the printing press internal data specified in step S17 is specifically counted under the control of the CPU 191 at the time when the printing process is interrupted (at the start of interruption) in step S3. This is a page two pages after the page transferred to the temporary stack tray unit 210 from the transport path of the post-processing unit 200.

  That is, in step S7, the output of the paper detection sensor 222 has changed from the detection state of the print paper S to the non-detection state during a predetermined period from the start of the print processing interruption. That is, in the unit 200, the printing paper S that existed on the transport path immediately before the temporary stack tray unit 210 does not exist for a predetermined period thereafter.

  The printing paper S that no longer exists on the conveyance path immediately before the temporary stack tray unit 210 is an operation due to the inertia of the conveyance unit 220 stopped by the CPU 271 of the control unit 270 of the post-processing unit 200 according to the instruction of the CPU 191. There is a possibility that the paper is discharged from the transport path immediately before the temporary stack tray unit 210 and dropped onto the temporary stack tray unit 210 of the post-processing unit 200. The printing paper S that has already been transferred to the temporary stack tray unit 210 before resuming the printing process, together with the printing paper S that is transferred to the temporary stack tray unit 210 after resuming the printing process due to jam removal, the post-processing unit (1) 230 and the post-processing unit (2) 240 can be collectively transported for post-processing. For this reason, the first page to be printed when resuming printing may be a page two pages after the last page already transferred to the temporary stack tray unit 210.

  On the other hand, when the print resumption page is designated on the print resumption page designation screen (YES in step S15), the designated page is set as the print resumption page (step S19), and the process proceeds to step S21.

  Here, the print resume page is designated on the print resume page designation screen because the user visually observes the jam occurrence state of the print paper S in the side paper discharge unit 160 according to the message M in the print resume page designation screen. It is thought that this is based on the results confirmed in (1).

  That is, the output of the paper detection sensor 222 of the post-processing unit 200 from the detection state of the print paper S during a predetermined period from the start of print processing interruption, which triggers the display of the print resume page designation screen on the display 170. When the state is changed to the non-detection state, the printing paper S on the transport path immediately before the temporary stack tray unit 210 does not always fall on the temporary stack tray unit 210 during the predetermined period. For example, the temporary stack tray unit There is a possibility that it has fallen out of 210 or a new jam has occurred between the transport path and the temporary stack tray unit 210.

  Therefore, only when the detection state of the printing paper S on the transport path immediately before the temporary stack tray unit 210 changes from yes to no during a predetermined period from the start of the interruption of the printing process, the temporary stack tray unit 210 Visual confirmation of the jam occurrence state on the immediately preceding conveyance path is instructed to the user by a message M on the print resumption page designation screen, and the user is allowed to designate a print resumption page according to the confirmation result.

  As a result, at least if the detection state of the printing paper S on the transport path immediately before the temporary stack tray unit 210 has not changed from yes to no during a predetermined period from the start of printing processing interruption, it is interrupted due to the occurrence of a jam. Thus, it is possible to determine a page on which the printing process is resumed while reducing the burden on the user.

  In step S21, the CPU 191 restarts the printing process from the designated page. Then, the series of processes is terminated, and the processes after step S1 are executed again.

  As is clear from the above description, in the present embodiment, step S1 in the flowchart of FIG. 5 is processing corresponding to the jam detection means in the claims. Moreover, in this embodiment, step S3 in FIG. 5 is a process corresponding to the interruption means in a claim. Furthermore, in this embodiment, step S21 in FIG. 5 is a process corresponding to the restarting means in the claims.

  In the present embodiment, step S17 in FIG. 5 is processing corresponding to the restart page changing means in the claims. Furthermore, in this embodiment, step S11 in FIG. 5 is processing corresponding to the confirmation instruction means in the claims. In the present embodiment, the display 170 displaying the print resume page designation screen in FIG. 3 constitutes a resume page designation unit in the claims.

  As described above, according to the printer system 1 of the present embodiment, the printed printing paper S on which the print image is printed by the printing unit 140 of the printer unit 100 is discharged from the side paper discharge unit 160 and the post-processing unit 200. When temporarily storing in the temporary stack tray section 210 via the transport path of the sheet and then transferring to the post-processing section (1) 230 and the post-processing section (2) 240 to perform post-processing, the following configuration It was adopted.

  That is, when the jam detection sensor 221 of the post-processing unit 200 detects the occurrence of a jam in the post-processing unit 200 and the control unit 190 interrupts the printing process in the printer unit 100 and various processes in the post-processing unit 200, The paper detection sensor 222 monitors the presence or absence of the printing paper S on the transport path immediately before the temporary stack tray unit 210 for a predetermined period. Then, if the printing paper S changes from the detection state to the non-detection state during a predetermined period, it is assumed that the printing paper S further falls to the temporary stack tray unit 210 due to inertia after the printing process is interrupted, and the print resumption page after the jam is removed is displayed. , I changed to the page after the original page.

  For this reason, the restart page of the printing process depends on whether or not the detection state of the printing paper S on the transport path immediately before the temporary stack tray unit 210 has changed from yes to no during a predetermined period from the start of the printing process interruption. It is possible to accurately determine which page is to be taken in consideration of the transfer state of the printed printing paper S with respect to the temporary stack tray unit 210. As a result, it is possible to determine a page for resuming the printing process interrupted due to the occurrence of a jam while reducing the burden on the user.

  When the output of the paper detection sensor 222 changes from the detection state of the print paper S to the non-detection state during a predetermined period after the interruption of the printing process (YES in step S7 of FIG. 5), the printing restart of FIG. The configuration for displaying the page designation screen on the display 170 (step S11 in FIG. 5) and accepting the change by the user of the print resume page until the jam is resolved may be omitted.

  In this embodiment, since the transport path of the post-processing unit 200 exists on the upstream side of the temporary stack tray unit 210, the temporary stack in which the printing process is interrupted is detected based on the detection result by the paper detection sensor 222 on the post-processing unit 200 side. It was assumed that the presence or absence of the printing paper S falling on the tray unit 210 was grasped. Therefore, the control unit 190 of the printer unit 100 determines the print resumption page according to the grasped content notified by the control unit 270 of the post-processing unit 200.

  However, for example, as the printing paper S discharged from the side paper discharge unit 160 of the printer unit 100 is directly input to the temporary stack tray unit 210 of the post-processing unit 200, the post-processing is performed on the upstream side of the temporary stack tray unit 210. There is a case where there is no conveyance path of the unit 200. In that case, the detection result of the paper detection sensor 182 of the printing paper S passing through the side paper discharge unit 160 is used to grasp whether or not the printing paper S has dropped onto the temporary stack tray unit 210 during the interruption of the printing process. The control unit 190 of the printer unit 100 may determine the print resumption page according to the content.

DESCRIPTION OF SYMBOLS 1 Printer system 100 Printer unit 110 Scanner part 120 Side paper feed stand 130 Paper feed tray 140 Printing part 150 Paper discharge tray 160 Side paper discharge part 170 Display 180 Carrying part 181 Jam detection sensor 182 Paper detection sensor 190 Control part 191 CPU
192 ROM
193 RAM
194 External interface unit 195 External storage device 200 Post-processing unit 210 Stack tray 210 Temporary stack tray unit 220 Transport unit 250, 260 Paper discharge tray 270 Control unit 271 CPU
272 ROM
273 RAM
274 External interface unit 275 External storage device M Message S Printing paper

Claims (3)

In a printing system that prints a printed image on a fed printing paper, transfers the printed printing paper to a stack tray, temporarily stores it, performs post-processing, and then discharges the processed paper together. ,
A paper detection sensor for detecting the presence or absence of the printing paper at a location immediately before the stack tray;
Jam detecting means for detecting the occurrence of jam in the printing paper;
Interrupting means for interrupting the post-processing printing process during the detection of the occurrence of jam of the printing paper;
From the restart page according to the detection state of the printing paper by the paper detection sensor during a predetermined period from the start time of the interruption of the printing processing with post processing, the printing processing with post processing after the detection of the occurrence of jam of the printing paper is completed. Resuming means for resuming
A printing system comprising:   The resuming unit performs the post-processing print processing when the detection state of the print paper by the paper detection sensor changes from yes to no during the predetermined period from the interruption start time of the post-processing printing processing. 2. The printing system according to claim 1, wherein the resume page that is the next page of the last page that has been transferred to the stack tray at the time of the start of interruption is further changed to the next page.   When the detection state of the printing paper by the paper detection sensor has changed from yes to no during the predetermined period from the start of interruption of the printing process with post-processing, in the confirmation area including the location immediately before the stack tray The apparatus further comprises confirmation instructing means for instructing confirmation of a jam occurrence state of the printing paper, and resuming page designating means for designating the resuming page. 3. The printing system according to claim 1, wherein the printing system with post-processing is resumed from the designated restart page when designated by the time when the printing processing with post-processing is resumed. 4.

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