JP2008087878A - Sheet processing device and image forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet processing device capable of increasing rate of operation and productivity of a facility by reducing the frequency and time of stand-by condition of the sheet processing device while holding jobs. <P>SOLUTION: A sheet is guided into a sheet P sort path 552 and is stacked onto a processing tray 630 when this sheet processing device receives instructions for sort mode. If this sheet processing device is temporarily stopped due to the absence of paper during the operation by the sort mode, a control part 900 searches a job for saddle mode from among stand-by jobs and starts the job for saddle mode. When the original job for sort mode interrupted while the job for saddle mode is performed gets restartable, this device ends a remaining part of the original job for sort mode by giving priority to it. If the saddle mode ends before restart of the original job for sort mode becomes possible, this device stands by until restart of the original job for sort mode becomes possible and ends the original job for sort mode. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sheet processing apparatus capable of receiving a sheet on which an image has been formed and processing it in a plurality of ways, and more particularly to control when a job currently being executed is interrupted.

  2. Description of the Related Art A sheet processing apparatus that accepts a sheet on which an image is formed from an image forming apparatus such as a copying machine, a printer, or a multifunction machine, performs various processes such as punching and bundle folding, and stacks them on individual trays has been put into practical use. With the recent development of multifunctional image forming apparatuses, it has become common to connect or incorporate a sheet processing apparatus in the image forming apparatus.

  Patent Document 1 discloses a sheet processing apparatus that is connected to the downstream side of an electrophotographic image forming apparatus and performs processes such as simple stacking, sorting, and needle binding on a sheet on which an image is formed.

  Patent Document 2 discloses an image forming apparatus that is connected to a network and receives print jobs from a plurality of personal computers and communication devices. The accepted print jobs are held in the memory and are sequentially executed in the order of acceptance. Here, a sheet processing apparatus that performs bookbinding processing is connected to the image forming apparatus, and a print job is accepted as a processing job including image formation data and sheet processing designation data.

JP-A-6-009144 JP 2004-45963 A

  In a conventional sheet processing apparatus, when a job being executed is interrupted due to a trouble or a command operation, it is common to stop the processing, wait for the cancellation of the interruption, and wait for the cancellation of the interruption to resume the job. . When a job is interrupted due to a sheet break in the image forming apparatus, a sheet jam in the sheet processing apparatus, a full stack of trays, or the like, the operator needs to remove the cause of the interruption and give a command operation to resume processing. When the operator performs a pause command operation, the job is resumed after waiting for the process restart command operation, and when the print job sender sends a process stop, the printer waits for the next printed sheet to be removed. The job was starting.

  For FAX reception or interrupt print jobs, the job being executed may be interrupted and loaded onto a dedicated tray, and then automatically returned to the interrupted job. However, there is no substitute for jobs being sequentially executed according to the priority order as initially defined, such as first-come-first-served basis or interrupt priority. Even if there is a job that can be processed in the suspended state among the remaining jobs in the suspended state of the job, it is not executed until the priority order is overturned.

  For this reason, when one job is temporarily stopped in the image forming apparatus equipped with the sheet processing apparatus, all the remaining jobs are in a waiting state, and the downtime of the image forming apparatus is increased, so that the operation rate and productivity of the equipment are lowered. Was.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a sheet processing apparatus that can increase the operating rate and productivity of equipment by reducing the number of times and the time that the sheet processing apparatus is in a standby state while holding a job.

  The sheet processing apparatus according to the present invention includes: a first processing unit that performs a first process on a sheet and stacks the sheet on a first stacking unit; and a second process that is different from the first process is performed on the sheet, and the first stacking unit A second processing means for loading on a different second loading means, and holding a plurality of jobs and sequentially executing the jobs in accordance with a predetermined priority order. When the job being executed using the first processing means is interrupted, the job that can be executed using the second processing means is started.

  In the sheet processing apparatus of the present invention, even if one job is interrupted, the remaining jobs are actively searched for jobs that can be processed even in the interrupted state, and are executed ahead of schedule. Efficient use of job interruption downtime and free processing means to digest accumulated jobs.

  Accordingly, it is possible to reduce the number of times and time when the sheet processing apparatus is in a standby state while holding a job, and to increase the operating rate and productivity of the equipment.

  For example, in the sheet processing apparatus 119 shown in FIG. 1, even if a sort mode process (for example, stapling and binding at one place) is being performed and a temporary stop state (for example, no paper or paused) is encountered, the next job is processed in the saddle mode process. If it is (saddle stitch binding), the saddle mode processing can be processed first. As a result, in a plurality of jobs and reservation jobs, the next job can be executed even when the previous job is stopped, and the waiting time can be reduced.

  Hereinafter, a sheet processing apparatus 119 and an image forming apparatus 100 according to embodiments of the present invention will be described in detail with reference to the drawings. The sheet processing apparatus of the present invention is not limited to the configuration of the embodiment described below. As long as a plurality of jobs are held and the next job is executed using the interruption time of one job, another embodiment in which a part or all of the configuration is replaced with the alternative configuration can be implemented. is there.

  In the present embodiment, a sheet processing apparatus installed on the downstream side of the image forming apparatus will be described. However, the sheet processing apparatus of the present invention may be incorporated in the housings of various image forming apparatuses, and the sheet processing apparatus may be controlled by a control apparatus of the image forming apparatus or an independent external control apparatus. Good.

  In this embodiment, an image forming apparatus that forms a monochrome image by transferring a toner image formed on a photosensitive drum onto a recording material will be described. However, the image forming apparatus of the present invention may be a full-color image forming apparatus that transfers each separated color toner image formed on one or more photosensitive drums to a recording material. Not only electrophotographic image forming devices, but also ink-jet methods, thermal transfer methods, and various printing methods can be used. Not only printers, but also various printing machines, copiers, fax machines, multifunction devices, etc. Is possible.

  The present invention is not limited to the form of the image forming system, and is a CD storing a program for realizing the control method in the image forming system in the form of a control method in the image forming system supported by the description of the embodiments. -It can be implemented in the form of a storage medium such as a ROM.

<Image forming apparatus>
FIG. 1 is an explanatory diagram illustrating a configuration of an image forming apparatus including a sheet processing apparatus according to an embodiment. As shown in FIG. 1, an image forming apparatus 100 is a copier that forms an image by an electrophotographic method. In the copying machine 100, a sheet processing apparatus 119 called a finisher is connected to the downstream side of the apparatus main body 101.

  An automatic document feeder (ADF) 102 is mounted on the upper part of the apparatus main body 101. The document D is placed on the document placing unit 103 by the user, and sequentially separated one by one by the feeding unit 104 and supplied to the registration roller pair 105. Subsequently, the document D is temporarily stopped by the registration roller pair 105 to form a loop to correct skewing. Thereafter, the document D passes through the introduction path 106 and passes through the reading position 107, whereby the image formed on the surface of the document is read. The document D that has passed the reading position 107 passes through the discharge path 108 and is discharged onto the discharge tray 109.

  When reading both the front and back sides of a document, first, the document D passes through the reading position 107 as described above, whereby an image on one side of the document is read. Thereafter, the document D passes through the discharge path 108 and stops in a state where it is nipped by the reversing roller pair 110. Then, the sheet is conveyed back by the reverse roller pair 110 and is sent again to the registration roller pair 105 in a state where the front and back surfaces are reversed.

  As in the case of reading the image on one side, the document D is corrected in skew by the registration roller pair 105, and the image on the opposite side is read at the reading position 107 through the introduction path 106. Thereafter, the document D is discharged to the discharge tray 109 through the discharge path 108.

  On the other hand, the document D passing the reading position 107 is irradiated with light from the illumination system 111, and the reflected light reflected from the document D is relayed by the plurality of mirrors 112 and guided to the lens 113. The lens 113 projects an image of the document D onto a light receiving element 121 such as a CCD, and the light receiving element 121 reads a line image crossing the document D and converts it into image data.

  The apparatus main body 101 performs electrophotographic image formation using the photosensitive drum 114. Surrounding the rotating photosensitive drum 114, a charger, an exposure device, a developing device, a cleaning device, and the like necessary for this purpose are arranged, but these are not shown.

  An exposure device (not shown) scans the photosensitive drum 114 with laser light modulated based on the image data of the document D, and writes an electrostatic latent image on the surface of the photosensitive drum 114. The electrostatic latent image is developed into a toner image by supplying toner from a developing device (not shown).

  In parallel with the toner image forming operation, sheets P such as paper or plastic film stacked on the cassette 115 are taken out one by one and wait on the registration roller 150. The registration roller 150 feeds the sheet P between the photosensitive drum 114 and the transfer device 116 in synchronization with the toner image on the photosensitive drum 114. Then, the toner image on the photosensitive drum 114 is transferred to the sheet P by the transfer device 116, and then the sheet P on which the toner image is transferred receives heat and pressure while passing through the fixing device 117 to form a toner image. Fixed on the surface. The sheet P that has completed image formation after being fixed is discharged from the apparatus main body 101 by the discharge roller 120 and sent to the sheet processing apparatus 119.

  When images are formed on both sides of the sheet P, the sheet P, on which the image is fixed on one side by the fixing device 117, is reversed in a switchback manner through a double-sided path 118 provided on the downstream side of the fixing device 117. Is done. Then, the sheet P is again fed between the photosensitive drum 114 and the transfer device 116, the toner image is transferred to the back surface, the toner image is fixed by the fixing device 117, and the sheet processing device is fixed by the discharge roller 120. It is discharged to 119.

<Sheet processing device>
FIG. 2 is an explanatory diagram showing the configuration of the sheet processing apparatus. As shown in FIG. 2, the sheet processing apparatus 119 is controlled by the control unit 900 and sequentially receives the sheets P discharged from the apparatus main body 101 and distributes them to the horizontal processing unit 500 and the lower folding apparatus 400. Various sheet processing is performed. The processing unit 500 performs a sorting process for aligning and bundling a plurality of continuously received sheets P into one bundle, a stapling process for binding the vicinity of the rear end of the bundled sheet bundle, and the like. The folding device 400 performs a bookbinding process in which the continuously received sheets P are stacked and saddle stitched / bunched.

  A punch unit (not shown) for punching (punching) can be attached between the apparatus main body 101 and the sheet processing apparatus 119 in the vicinity of the rear end of the conveyed sheet P.

  A flapper 551 is disposed at the junction of the sort path 552 that guides the sheet P to the processing unit 500 and the bookbinding path 553 that guides the sheet P to the folding device 400. The flapper 551 sorts the sheet P received by the inlet roller pair 502 from the apparatus main body 101 between the processing unit 500 and the folding apparatus 400. In the non-sort and sort modes, the control unit 900 rotates the flapper 551 downward to distribute the sheets P to the sort path 552. However, in the folding mode, the flapper 551 is rotated upward to distribute the sheet P to the bookbinding path 553.

  In the non-sort mode, the sheet P guided to the sort path 552 by the flapper 551 is directly discharged from the discharge port 36 to the stack trays 18a and 18b by the normal rotation of the discharge conveyance roller pair 560 capable of forward and reverse rotation. Simple loading.

  In the sort mode, the sheet P guided to the sort path 552 by the flapper 551 is pulled back by a reverse rotation after a predetermined amount of forward rotation of the discharge conveyance roller pair 560 and stacked on the processing tray (intermediate tray) 630. Sheets stacked on the processing tray 630 and stacked in a bundle form are subjected to contact / separation of the discharge / conveyance roller pair 560 as necessary, and side and rear end alignment processing, staple binding processing by the stapler 601 and the like. Applied. Thereafter, the sheet bundle is conveyed by the pair of discharged paper conveyance rollers 560, and the bundle is discharged from the paper discharge port 36 to the stack trays 18a and 18b.

  Each of the stack trays 18a and 18b is configured so as to be able to move by moving up and down in the vertical direction. The stack trays 18a and 18b are attached to a common guide rail formed on a part of the support column 37, and pinion gears 225a and 225b are attached to a common rack portion 119B. I'm biting. The stack trays 18a and 18b move in the vertical direction by transmitting the forward / reverse driving of the stacker motors 209a and 209b installed therein to the pinion gears 225a and 225b to raise and lower the rack portion 119B.

  In the non-sort mode and the sort mode, the control unit 900 detects the stack amount of the stack trays 18a and 18b in the stacking process. When the stack tray 18a is fully loaded, the stack tray 18a is moved onto the paper discharge port 36, and control is performed such as switching the discharge destination to the stack tray 18b, thereby enabling efficient and less disruptive stacking. .

  On the other hand, the folding device (saddle) 400 staples the sheet bundle using a pair of staplers 818 arranged in a direction perpendicular to the paper surface, and then folds the sheet bundle using the folding roller pair 826 and the protruding member 825. .

  A plurality of sheets P continuously guided in the bookbinding path 553 are stacked and stored on the storage guide 820, and then the leading end is abutted against a positioning member 823 that is movable in the vertical direction, and the transport direction is aligned. The formed sheet bundle is positioned at the fold line on the stapler 818 by the positioning member 823, the fold line is stapled by the stapler 818, and is positioned at the nip of the folding roller pair 826 that rotates the fold line by the positioning member 823.

  A protruding member 825 is provided so as to protrude from a position facing the nip of the folding roller pair 826 with the storage guide 820 interposed therebetween. By projecting the protruding member 825 to the folding line of the sheet bundle by a drive mechanism (not shown), the sheet bundle is pushed out to the nip of the rotating folding roller pair 826 and is nipped in the folded state as it is. The folding roller pair 826 conveys the folded sheet bundle to the saddle discharge roller pair 831, and the saddle discharge roller pair 831 discharges the folded sheet bundle to the saddle discharge tray 832.

  In the sheet processing apparatus 119 configured as described above, a plurality of print jobs are held in the control unit 900 and reserved in the order of acceptance. Conventionally, in the middle of the stacker processing mode in which stacking is performed on the stack trays 18a and 18b, if a stop (for example, no paper or temporary stop) or a mode difference occurs, processing of the entire sheet processing apparatus 119 is prohibited. It was.

  Even if the next job is the saddle processing mode in which the saddle discharge tray 832 is loaded, the image forming apparatus 100 does not execute image formation of the next job, and enters the saddle processing mode after the previous job is completed. Image formation was started.

  However, in recent years, with the multifunction of the image forming apparatus 100, a plurality of processing modes are often reserved, and even in a combined job such as a stacker processing mode and a saddle processing mode, one job is possible due to the convenience of the sheet post-processing device 119. When was suspended, all other reserved jobs were waiting.

  In the present embodiment, the above-described problems are solved with a slight sequence change. For example, even if the stacker processing mode (for example, stapling and stapling) is being executed and temporarily stopped (for example, no paper or paused), if the next job is the saddle processing mode (saddle binding), the saddle processing mode is changed. Process first.

<Job switching sequence>
3 is a flowchart of a job switching sequence of the sheet processing apparatus, FIG. 4 is an explanatory diagram of a state where sheets are stacked on the processing tray, and FIG. 5 is an explanatory diagram of a state where sheets are stacked on both the processing tray and the storage guide. 6 is an explanatory diagram of a state in which sheets are stacked on the storage guide, and FIG. 7 is a flowchart of a modified example of the job switching sequence. The flowchart will be described with reference to the reference symbols shown in FIG. 2, and Step is abbreviated as “S”.

  As shown in FIG. 3, a control unit (201: FIG. 1) of the apparatus main body 101 and a control unit 900 of the sheet processing apparatus 119 exchange data and commands and execute control of each unit in the sheet processing apparatus 119. To do. When the instruction of the sort mode is received from the control unit 201 (YES in S11), the flapper 551 is switched as shown in FIG. 4 to guide the sheet P to the sort path 552. Then, sort mode processing is started (S12), a sheet bundle S1 is formed on the processing tray 630, and then the job is ended (YES in S13).

  However, if it is determined that there is no paper or the like during the sort mode and the job is temporarily stopped (YES in S14), a job in the saddle mode is searched from the standby jobs (S15). If the reserved job of the apparatus main body 101 is in the saddle mode, in other words, if there is a saddle mode job to be performed (YES in S15), the flapper 551 is switched as shown in FIG. Lead. Then, the saddle mode job is started (S16), the sheet bundle S2 is formed on the storage guide 820, and then the job is ended (YES in S18).

  However, if the interrupted original sort mode job can be resumed during execution of the saddle mode job (S16) (YES in S17), the rest of the original sort mode job is executed (S12). End (YES in S13).

  When the saddle mode is completed before the original sort mode job can be resumed (YES in S18), the process waits until the original sort mode job can be resumed (S19). The job is terminated (YES in S13).

  In the present embodiment, the control unit 201 of the apparatus main body 101 and the control unit 900 of the sheet processing apparatus 119 communicate (for example, communicate) to determine the execution status of the operation mode. However, the control function may be integrated into the control unit 201 or the control unit 900 to perform comprehensive input / output determination and control output.

  Further, in this embodiment, after the sort mode that can be resumed is completed (YES in S13), the next job is executed according to the initial priority order, and the order of the saddle mode jobs that are being executed halfway is followed. When it comes, the saddle mode processing is continued from the middle of the execution. However, after completion of the sort mode that can be resumed, after completion of the saddle mode processing being executed halfway, the next job may be executed according to the initial priority.

  Further, even if a trouble occurs when the sheets are simply stacked on the stack trays 18a and 18b in the non-sort mode, the sheets in the non-sort mode are not left in the apparatus main body 101 and the sheet processing apparatus 119. Then, the control of the flowchart shown in FIG. 3 may be performed.

  By the way, in the present embodiment, an example in which the saddle mode is advanced and executed when the sort mode is interrupted has been described, but conversely, when the saddle mode is interrupted, the sort mode may be advanced and executed. As shown in FIG. 7, upon receiving an instruction from the control unit 201 (YES in S21), the saddle mode processing is started (S22), and the sheet P is stacked on the storage guide 820 as shown in FIG. A bundle S2 is formed, and then the job is terminated (YES in S23).

  However, if a trouble occurs during the execution of the saddle mode (YES in S24), a job in sort mode is searched from the standby jobs (S25). If there is a job in sort mode (YES in S25), the job is started. (S26) to end (YES in S28).

  However, if the interrupted original saddle mode job can be resumed during execution of the sort mode job (S26) (YES in S27), the rest of the original saddle mode job is executed preferentially ( S22), the process is terminated (YES in S23). If the sort mode ends before the saddle mode job can be resumed (YES in S28), the process waits until the original saddle mode job can be resumed (S29), and terminates the original saddle mode job. (YES in S23).

  In the control of FIG. 7, after completion of the saddle mode that can be resumed (YES in S23), the next job is executed according to the initial priority order, and the order of the jobs in the sort mode that is being executed is reached in order. Sometimes the sort mode processing is continued from the middle of the execution. However, after completion of the saddle mode that can be resumed, after completion of the sort mode processing being executed halfway, the next job may be executed according to the initial priority.

  In the above description, the sheet processing apparatus that performs the binding process as the sheet process and the image forming apparatus including the sheet processing apparatus have been described as examples. However, the present invention is not limited thereto, and the punching process is performed as the sheet process. Applicable to what to do. The present invention is not limited to the case where two stack trays 18a and 18b are provided, and can be applied to a sheet processing apparatus including three or more fixed or movable stacking units.

<Correspondence with Invention>
The sheet processing apparatus 119 includes a processing unit 500 that stacks sheets on the processing tray 630, a folding device 400 that stacks sheets on a storage guide 820 different from the processing tray 630, and a processing unit 500 and a folding device 400 that receive received sheets. And a flapper 551 that distributes and conveys the plurality of jobs, holds a plurality of jobs, and sequentially executes the jobs according to a predetermined priority order. When a job being executed using the processing unit 500 is interrupted, a job that can be executed using the folding device 400 is started.

  When the interrupted job becomes possible, the sheet processing apparatus 119 immediately interrupts the job started using the folding device 400 and restarts the interrupted job.

  After the job started using the folding device 400 is completed, the sheet processing apparatus 119 resumes the interrupted job as soon as the interrupted job becomes possible.

  A control unit 900 that selects a job that can be performed using the folding device 400 according to the priority order is provided, and the control unit 900 requests the apparatus main body 101 for a sheet to be used for the selected job.

  The control unit 900 controls the flapper 551 so that the sheet can be conveyed to the folding device 400, and then supplies the sheet supplied to the selected job to the apparatus main body 101.

  The sheet processing apparatus 119 includes a processing unit 500 that continuously stacks a plurality of sheets on the processing tray 630 to form a sheet bundle, and a plurality of sheets that are continuously stacked on the storage guide 820 and staples on the folding line. The folding device 400 that folds and bundles the folding line, the flapper 551 that distributes the sheets received from the upstream side and conveys them to the processing unit 500 or the folding device 400, and controls the processing unit 500, the folding device 400, and the flapper 551, And a control unit 900 that holds a plurality of jobs and sequentially executes the jobs according to a predetermined priority order. Then, a job that can be executed using the folding device 400 and is positioned at the top in the priority order is prepared as a second job, and when the job being executed using the processing unit 500 is interrupted, the second job is executed. Start the job.

  The image forming apparatus 100 includes an apparatus main body 101 that forms an image on a sheet, and a sheet processing apparatus 119 that receives and processes a sheet image-formed by the apparatus main body 101.

  The image forming apparatus 100 includes an apparatus main body 101 that forms an image on a sheet, a processing unit 500 that applies a job in a sort mode to a sheet on which an image is formed, and a saddle mode that is different from the sort mode on a sheet P on which an image is formed. A folding device 400 that applies the job, a flapper 551 that can distribute and convey a sheet on which an image is formed to the processing unit 500 and the folding device 400, holds a plurality of jobs, and performs the job according to a predetermined priority order. And a control unit 900 that controls the apparatus main body 101 and the flapper 551. When a sort mode job being performed using the processing unit 500 is interrupted, the control unit 900 selects and starts a saddle mode job using the folding device 400 according to the priority. When the saddle mode job being executed using the folding device 400 is interrupted, the sort mode job using the processing unit 500 is selected and started in accordance with the priority.

1 is an explanatory diagram illustrating a configuration of an image forming apparatus including a sheet processing apparatus according to an embodiment. It is explanatory drawing which shows the structure of a sheet processing apparatus. 6 is a flowchart of a job switching sequence of the sheet processing apparatus. FIG. 6 is an explanatory diagram of a state where sheets are stacked on a processing tray. It is explanatory drawing of the state with which the sheet | seat was loaded on both the process tray and the storage guide. FIG. 6 is an explanatory diagram of a state where sheets are stacked on a storage guide. It is a flowchart of the modification of a job switching sequence.

Explanation of symbols

18a, 18b Stack tray 100 Image forming apparatus 101 Upstream apparatus, image forming means (apparatus body)
201 control unit 119 sheet processing apparatus 400 second processing means (folding apparatus)
500 1st processing means (processing part)
551 Conveying means (Flapper)
552 Sort pass 553 Bookbinding pass 630 First stacking means (processing tray)
820 Second loading means (storage guide)
900 Control means (control unit)
P sheet S1, S2 sheet bundle

Claims (8)

First processing means for stacking sheets on the first stacking means;
Second processing means for stacking sheets on a second stacking means different from the first stacking means;
A conveying unit that distributes and conveys the received sheet to the first processing unit and the second processing unit;
In a sheet processing apparatus that holds a plurality of jobs and sequentially executes the jobs according to a predetermined priority order,
A sheet processing apparatus that starts a job that can be performed using the second processing unit when a job that is being performed using the first processing unit is interrupted.   2. The sheet processing apparatus according to claim 1, wherein as soon as the interrupted job becomes possible, the job started using the second processing unit is interrupted, and the interrupted job is resumed.   3. The sheet processing apparatus according to claim 2, wherein after the job started using the second processing unit is completed, when the interrupted job becomes available, the interrupted job is immediately resumed. 4. Control means for selecting jobs that can be performed using the second processing means according to the priority order;
The sheet processing apparatus according to claim 1, wherein the control unit requests an upstream apparatus for a sheet to be used for the selected job.   The control means controls the conveying means so that a sheet can be conveyed to the second processing means, and then causes the upstream device to supply a sheet to be used for the selected job. 4. The sheet processing apparatus according to 4. First processing means for continuously stacking a plurality of sheets on the first stacking means to form a sheet bundle;
A second processing unit configured to continuously stack a plurality of sheets on the second stacking unit and staple the fold line, and then fold the bundle at the fold line;
A conveying unit that distributes a sheet received from the upstream side and conveys the sheet to the first processing unit or the second processing unit;
Control means for controlling the first processing means, the second processing means, and the conveying means, and holding a plurality of jobs and sequentially executing the jobs in accordance with a predetermined priority order. In the device
Preparing a job that can be executed using the second processing means and that is positioned highest in the priority order as an interrupted job;
The sheet processing apparatus according to claim 1, wherein when the job being executed using the first processing unit is interrupted, the interrupted job is started. An image forming means for forming an image on a sheet;
An image forming apparatus comprising: the sheet processing apparatus according to claim 1, which receives and processes a sheet image-formed by the image forming unit. An image forming means for forming an image on a sheet;
First processing means for performing a first processing on a sheet on which an image is formed;
Second processing means for performing a second process different from the first process on the sheet on which the image is formed;
A transport unit capable of sorting and transporting a sheet on which an image is formed to the first processing unit and the second processing unit;
A control unit that holds a plurality of jobs, selects the job according to a predetermined priority order, and controls the image forming unit and the transport unit;
When the job being executed using the first processing unit is interrupted, the control unit selects and starts a job using the second processing unit according to the priority order, and uses the second processing unit. When the job being executed is interrupted, the image forming apparatus is configured to select and start a job using the first processing unit according to the priority order.

Images