JP2000206831A - Image forming device with postprocessing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability by controlling the copying operation so that a copying operation based on the resetting of an original may be interrupted before the original is removed from a bin when a copying sheet lies in the bin. SOLUTION: In the case of setting the number of sheets to be copied exceeding the number of bins, the copying operation is executed by a copying control means in a divided state in accordance with the number of bins in a sorter, and in this case, the copied sheets as many as the set number of copied sheets are obtained by resetting the original. And, at a copying cycle with an operation of discharging the copied sheet to the bin, the copying operation is controlled so that the copying operation based on the resetting of the original may be interrupted before the original is removed from the bin when the copying sheet lies in the bin. As for the device, each bin 23 is moved upward and downward when helical cam shafts 24a, 24b are rotated in two ways under the two-way drive of a bin lifting motor 25, and respective bins successively face a pair of bin ejecting rollers 28, then, a sorting operation is executed, and also, the presence or absence of the paper on either bin is detected by a sensor 29 for detecting the presence or absence of the paper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus provided with a post-processing device such as a sorter and a stepper. For example, even when the number of copies to be set is equal to or larger than the number of bins of the sorter, the operator can reduce the number of copies. The present invention relates to an image forming apparatus capable of automatically obtaining a required number of copies by simply removing paper on a sorter and resetting a document without management. .

[0002]

2. Description of the Related Art An image forming apparatus capable of performing limitless processing on the number of copies equal to or larger than the number of bins is disclosed in, for example, (1) Japanese Patent Laid-Open No. 5-306.
No. 066 is known. This means that a means for forcibly removing the paper post-processed by the post-processing means from the paper tray is provided, and when the number of processed copies is set to be equal to or greater than the number of paper trays, the post-processed paper is stored in all of the paper trays Is detected, these sheets are forcibly taken out, and post-processing is continued to perform limitless processing. Also, (2) Japanese Patent Application Laid-Open No. H09-048561 discloses a method in which first and second pin modules are provided, and a sheet bundle is conveyed from another module while a sheet material is stored in one of the pin modules. An image forming apparatus that performs limitless sorting in which the number of copies is not limited by alternately performing the operations is disclosed. Further, (3) Japanese Patent Publication No. Hei 6-70720 discloses that in a copy mode in which the number of sheets that can be continuously copied is limited, if a set number larger than the limited number is input, the display of the set number is automatically changed to the limited number. An image forming apparatus is disclosed in which the number is limited according to the number of sorter bins.

[0003]

As a post-processing device for an image forming apparatus such as a copying machine, a post-processing device for sorting (sorting) and storing sheets subjected to image forming processing, and
2. Description of the Related Art A post-processing device that performs a binding process (stapling) on sorted sheets is known. In such a post-processing device, since the sorting and stapling processing exceeding the number of bins cannot be performed at one time, the setting of the number of copies in the sort mode is limited by the value of the number of bins. Therefore, when it is desired to make copies of copies exceeding the number of bins, the number of copies is set, the paper is removed from the bin after copying, and the automatic document feeder is used until the required number of copies is obtained. It is necessary to reset the original to the (ADF), and as the required number of copies increases, the burden of the operator having to manage the completed number of copies and determine whether the required number of copies has been obtained is reduced. It increased and was inconvenient. In the apparatus disclosed in JP-A-5-306066 of the above (1), by adopting the above configuration, the inconvenience can be solved. However, in addition to the post-processing device, a device for forcibly removing paper from a bin is provided. Therefore, there is a problem that the device becomes large-sized, complicated, and causes an increase in cost. The method disclosed in JP-A-9-048561 (2) requires two bin modules, and has the same problem as the case (1). The above (3) does not provide a direct solution to the above problem. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-described problem and to realize an image forming apparatus with improved operability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and the number of bins is not limited by the number of bins in the sort mode. When the copying operation is performed based on the number of copies, the copying operation is restarted by removing the paper from the bin by the operator and resetting the originals on the ADF, and the originals are reset until the set number of copies is obtained. In addition, the operator does not need to be conscious of whether the necessary number of copies have been made, and the usability is improved.

[0005]

According to a first aspect of the present invention, there is provided an automatic document feeder for feeding a set of originals to an exposure position, a copying unit for copying the originals, and a plurality of sheets for storing copy sheets. Post-processing means provided with a sorter having bins, means for detecting the presence of copy paper in the bin, and copy control means for controlling the copy, when the number of copies exceeding the number of bins is set, In the image forming apparatus, the copy control unit may divide a copy in accordance with the number of bins of a sorter, and obtain a set number of copies by resetting a document. If there is copy paper in the bin in a copy cycle that involves discharging paper, the copy operation is controlled so that copying by resetting the original is interrupted until the original is removed from the bin. An image forming apparatus, characterized by.

According to a second aspect of the present invention, in the image forming apparatus according to the first aspect, the number of copies to be executed at one time is calculated based on the number of bins of the sorter of the post-processing device and the set number of copies. Means for issuing a next copy instruction when a copy cycle for discharging copy paper to the bin is completed, wherein the copy control device controls the copy means based on the calculated number of copies. An image forming apparatus comprising:

According to a third aspect of the present invention, in the image forming apparatus according to the first or second aspect, the copying means temporarily stores a copy sheet on which an image has been formed on one side, and reprints the image on another side to form an image. An image forming apparatus is a double-sided copying unit having a double-sided tray for feeding paper.

According to a fourth aspect of the present invention, in the image forming apparatus according to the third aspect, the copy control means does not have a copy sheet in the bin in a copy cycle involving discharging the copy sheet to the bin. In such a case, the copying operation by re-feeding the single-sided copied paper is enabled by resetting the original, and if the copying paper is present in the bin, the copying operation is suspended until the copying paper is removed. An image forming apparatus comprising:

According to a fifth aspect of the present invention, in the image forming apparatus according to the fourth aspect, there is provided post-processing means for performing stapling processing of the copy sheet, and the control means includes a step of setting the copy sheet to the bin. In the copy cycle with discharge, if there is no copy paper in the bin, resetting of the original enables the copying operation by re-feeding the single-sided copied paper, and if there is copy paper in the bin, stapling. The image forming apparatus is characterized in that a control for interrupting the copying operation is performed until the image forming is completed and the sheet is removed.

According to a sixth aspect of the present invention, in the image forming apparatus according to any one of the first to fifth aspects, when a sheet is present in a bin, the image forming apparatus has a display means for displaying the fact. It is a forming device.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of an image forming apparatus according to an embodiment of the present invention. The image forming apparatus shown in FIG. 1 includes an apparatus main body 10 and a post-processing apparatus (sort stapler) 2.
0 and an ADF (document feeder) 30. The apparatus body 10 accommodates paper (transfer paper) 4
The paper feed unit 11 (11a, 11b, 11c, 11d), a duplex unit 12, a photoconductor 13 and an electrophotographic process unit around the photoconductor 13, an optical system 14, a fixing unit 15, a contact glass 16, and the like are provided. The sorter stapler 20 includes a switching claw 21, a proof tray 22, a movable bin 23,
Staple unit 27 having helical cam shaft 24 (24a, 24b), bin lift motor 25, stapler 26
Etc. are provided.

The ADF 30 includes a transport belt 31 for transporting an original onto the contact glass 16 and the original set detecting device 3.
2. It has other well-known mechanisms. The original is set with the image side facing upward. In the one-sided original mode, the original is conveyed from the lowest order and is temporarily stopped by the contact glass. Exposure is performed in this state, and after the exposure is completed, the document is inverted and discharged with the image surface facing upward.
In the double-sided document mode, the document conveyed from the lowermost position passes over the contact glass, is reversed and returns to the contact glass, and copies the back surface. Next, after copying the back side of the original, the original is turned over again and returned to the contact glass, and the front side of the original is copied. After the exposure of the document surface is completed, the document is discharged with the surface facing upward. When the transfer paper on which an image is formed by a known image forming process in the apparatus main body 10 is discharged to the sorter stapler 20 from the main body discharge port, the transport path is switched to the proof tray 22 or the bin 23 by the switching claw 21.

In the double-sided copying mode, first, in the front side copying, the paper on which the image is formed on the front side is
2 are stacked with the image formed thereon facing downward. Next, in backside copying, the sheet once stored in the duplex unit 12 is re-fed in order from the lowest sheet, an image is formed on the backside, and the sheet is discharged to the sorter stapler 20. Although only one bin 23 is shown in the figure, a large number of the bins 23 are engaged with the helical cam shaft 24, and when the transport path is switched to the bin 23 side, a predetermined position is set at the position of the bin discharge roller pair 28. The transfer paper is discharged to the bin 23. Each bottle 23
Is moved up and down by bidirectional rotation of the helical cam shaft 24 by the bidirectional drive of the bin lift motor 25, and is sorted by sequentially facing the bin discharge roller pair 28, and the paper presence / absence sensor 29 Thus, whether or not there is a sheet on any of the bins is detected.

The staple unit 27 can staple the transfer paper discharged to the bin 23. The position of the staple unit 27 in the bin moving direction is fixed, the bin 23 is moved to the position shown in FIG. 1 by the drive of the bin lift motor 25, and the sheet bundle is taken out to the position of the stapler 26 by the one-bin stapling chuck unit, and stapling is performed. Thereafter, the bundle of paper is returned to the bin 23.
This operation is repeated for all bins to be stapled. The transport drive system of the sorter and the stapler drive are completely independent of the drive of the main unit, and once the transfer paper has been transported into the sorter, it is not affected by the state of the main unit (drive off due to jam etc.). Paper sorting and stapling are possible.

FIG. 2 is a block diagram showing one embodiment of the control system of the present apparatus. The control of the entire apparatus is performed by the CPU 211,
The operation is performed by the main control unit 210 including the ROM 212, the RAM 213, the nonvolatile RAM 214, the serial interface 215, the timer 216, and the like. The main control unit 210 includes a motor for driving the photoconductor, various AC loads 221 such as a paper feeding motor and a clutch in the paper feeding unit 11 and the duplex unit 12, and various DC loads 2.
22 and inputs of various sensors 223 such as a temperature sensor (detects the temperature of the fixing roller). Automatic Document Feeder (ADF) 30, Post-processing device (Sotas stapler)
The control unit 20 and the operation unit 50 are connected via a serial I / F 215, and exchange necessary control data by serial communication.

FIG. 3 is an external view of the operation unit 50 provided in the present apparatus, and is constituted by hard keys such as numeric keys and touch panel keys arranged on a liquid crystal. 30
Numeral 1 is used to set the number of copies and the like using a numeric keypad. Reference numeral 310 is used to clear the number of copies input with the clear / stop key or to temporarily suspend the copying operation. 30
Reference numeral 2 denotes a liquid crystal display screen, which is a touch panel for displaying an operation state and a message. A guidance key 303 is used when the mode shifts to a mode in which a description of a function and an operation method are displayed. A program key 304 is used to register and call frequently used settings. Reference numeral 306 denotes a brightness adjustment knob used to adjust the brightness of the liquid crystal display screen. A mode clear / preheat key 307 is used for canceling the set contents or performing a setting to be set to a preheat state by continuously pressing for a predetermined time or more. An interrupt key 308 is used to interrupt during a copying operation and to copy another original. Reference numeral 309 denotes a start key for instructing the start of a copying operation.

FIG. 4 is an explanatory diagram showing an example of the display screen. In the figure, reference numeral 401 denotes a message area for displaying a message such as "You can copy" or "Please wait",
Reference numeral 402 denotes a copy number display unit for displaying the number of sheets set in the upper row and the number of copies copied in the lower row; 403, an automatic density key for automatically adjusting the image density; 404, an automatic paper selection key for automatically selecting transfer paper; Reference numeral 405 denotes a paper specification scaling key for automatically performing enlargement / reduction processing according to the transfer paper size.
Reference numeral 06 denotes a sort key for designating a process for arranging copies one by one in a page order, 407 a stack key for designating a process for sorting copies by a page, and 408 a process for binding the sorted items one by one. Staple key to specify, 4
09 is a special original feed key, 410 is a slightly smaller key,
411 is a scaling key (enlargement key) and 412 is a double-sided key. Various keys in the display screen have a touch panel configuration, and the displayed item is input by touching the displayed screen with a finger or the like.

FIG. 5 shows a process of dividing a copy job in the sort mode according to the present invention.
The number of copies (number of copies) set by the (operator) is N,
If the number of bins of 0 is M, the copy required by the operator is
This is realized by making N / M copies of the number of copies M and finally making one copy of the remainder of the number of copies N / M (N divided by M).
For example, when N = 50 and M = 20, two copies of 20 copies and one copy of 10 copies are required, that is, three copies are required for the same document.

FIG. 6 shows an operation flow when the sort mode and the staple mode are set in the one-sided → one-sided mode of the image forming apparatus according to the first and second aspects. Operation unit 5
0, the copy mode (sort / staple, set number N) is set (S1). When the start key 309 is pressed (S2: Yes), the copy mode to be executed at one time from the sorter bin number M and the set number N is set. The number of copies n is calculated (S3), and the copying operation is started. First, a document is fed by the DF 30 (S4). Then, a copy operation is performed on the document at a predetermined interval (S5), and the copy is repeated by the number of copies (n) for each document while judging whether or not the copy is completed (S6). At each end,
It is determined whether the original is the final original (S7). If the original is not the final original, the process returns to the original feeding step (S4), and the above steps (S4) to (S6) are repeated until the final original.
Here, although not shown, when the process proceeds from step (S7) to step (S4) or step (S8), the document is discharged by the ADF 30.

Copying of all originals is completed (S7:
Yes), when the transfer paper is discharged to the sorter bin 23, a staple execution signal is transmitted to the sorter stapler 20.
(S8). At this time, a signal for executing stapling for all the discharge bins is transmitted. If the stapling operation by the sorter stapler 20 is completed for all bins
(S9: Yes), the copying for the number of copies n is completed, and the number of copies is added to the total number of copies (S10). Here, naturally, the initial value of the total number of copies is 0.

Next, the set number N set by the operator is compared with the total number of copies (S11). If they do not match (S11:
No) indicates to the operation unit 50, for example, a message as shown in FIG. 11 (please remove the paper from the sorter and press the start key) instructing the operator to remove the paper from the sorter bin and reset the original (FIG. 11). S12).
Then, the sheet is removed from the sorter bin and the document is set (S13: Yes), and when the start key 309 is pressed (S14: Yes), the number of copies n to perform the next copy operation is made.
Is recalculated from the sorter bin number M, the set number N, and the total number of copies (S3). Then, the above-described copying operation is repeated, and when the set number of copies and the total number of copies become equal (S11:
Yes), the copying ends.

Next, the operation of the image forming apparatus according to claims 3 and 4 will be described.
(Sort mode, double-sided → double-sided mode)
This will be described with reference to the flowchart shown in FIG. With the operation unit 50,
The copy mode (sort mode, double-sided to double-sided mode, set number of copies) is set (S101), and when the start key 309 is pressed (S102: Yes), the number of copies n to be executed is calculated from the number M of sorter bins and the set number N of copies. (S103),
Start copying operation. First, the document is reversed and fed by the DF 30 (S104). Then, the copying operation on the back side of the document (stacking of the transfer paper on the duplex unit) is executed at predetermined intervals (S105), and is repeated by the number of copies (or the number of sorters when the set number is larger than the number of sorters).
(S106). When the copy operation on the back side of the document is completed, the document is reversed (S107), and the process proceeds to the copy operation on the front side. The paper removal FLg in S8 is in the RESET state at the beginning of copying (S108: Yes), and executes a copying operation on the front side of the document (re-feeding of the transfer paper from the duplex unit) at predetermined intervals (S109). Repeat for the number of copies (S1
10). In the above steps, the steps from step (S104) to step (S110) are performed for each document (S111) until the last document. Although not shown, the document is discharged by the ADF 30 when the process proceeds from step (S111) to step (S104) or step (S112). When the transfer papers for all the originals are discharged to the sorter bin 23 (S11: Yes), the number of copies is added to the total number of copies (S12).

Next, the number N of copies set by the operator is compared with the total number of copies (S120). If they do not match (S
120: No) First, it is checked whether or not the first original copy is stacked on the duplex unit (S12).
1). In this case (double-sided to double-sided mode), the first copy of the original is stacked on the double-sided unit (S121: Yes).
s) In step (S122), a message for instructing the operator to reset the document and remove the sheet from the sorter bin is displayed on the operation unit 50. Then, the process waits for re-setting of the document (S123). The document is set (S123: Yes),
When the start key 309 is pressed (S24: Yes),
Check if the sorter bin paper has been removed
(S125). If the paper has not been removed (S125:
No), the paper removal Flg is set (S126).

If the copied paper is not stacked on the duplex unit as in the single-sided to single-sided mode (S121:
No), a message instructing the operator to reset the document and remove the sheet from the sorter bin is displayed on the operation unit 50 in step S127, and the process waits for the reset of the document and the removal of the sheet from the sorter bin (S128). When the sheet is removed from the sorter bin and the document is set (S128: Yes), it is determined whether or not the start key of the step is pressed (S12).
4) If the start key is pressed (S124Ye)
s) In the same manner as described above, it is checked whether or not the sheet in the sorter bin has been removed (S125). In this case, since the sheet has been removed (S125, Yes), the sheet removal Fl is performed.
g is not set.

Here, the number of copies n for performing the next copy operation is recalculated from the number of sorter bins M, the number of set copies N, and the total number of copies (S103), and the above-described copy operation is repeated.
If the paper removal from the sorter bin has not been performed (the paper removal F1g is set, S108; No), after the copying operation of the back side document is completed, the removal of the paper from the sorter bin is checked (S113). If the sheet has not been removed (S113: No), a message for removing the sheet (for example, "Please remove the sheet from the sorter") is displayed on the operation screen (S114), and the apparatus waits for the sheet removal. If the paper removal has been performed (S113: Yes), the paper removal F1g is reset (S115), and the process proceeds to the backside copying operation (double-sided refeeding) (S109). Since the paper removal F1g is reset from the next original, the step (S1
08) is Yes, copying is performed up to the final document. Then, the copying operation is repeated as described above, and when the set number of copies is equal to the total number of copies (S220: Yes), the copying is completed.

Next, the operation of the image forming apparatus according to claim 5 is described.
(Sort mode, staple mode, duplex → duplex mode)
Will be described with reference to FIG. With the operation unit 50,
Copy mode (sort mode, staple mode, double-sided →
When the start key 309 is pressed (S202: Yes), the number n of copies to be executed is calculated from the number M of sorters and the set number N (S203). Start copying operation. First, the document is reversed and fed by the DF 30 (S204). Then, a copy operation for the back side of the document (stacking of transfer paper on the duplex unit) is performed at predetermined intervals (S205),
The process is repeated for the number of copies (S206). When the copy operation on the back side of the document is completed, the document is reversed (S207), and the process proceeds to the copy operation on the front side. The paper removal Flg in step (S208) is in the RESET state at the beginning of copying (S208:
Yes), the copying operation for the front side of the document (refeeding from the duplex unit) is executed at a predetermined interval (S209), and is repeated for the number of copies (S210). This operation is performed from step (S204) to step (S
Step 210) is repeated (S211). Here, although not shown, when the process proceeds from step (S211) to step (S204) or step (S112), the document is discharged by the ADF 30.
When the transfer papers for all the originals are discharged to the sorter bin 23 (S211: Yes), the number of copies is added to the total number of copies (S212). Then, a staple execution signal for executing staple for all the discharge bins is transmitted to the sorter stapler 20 (S216).

Next, the number of copies N set by the operator is compared with the total number of copies (S220), and if they do not match (S22).
0: No), first, it is checked whether or not the first original copy is stacked on the duplex unit (S221). In the case of the double-sided → double-sided mode, since the first copy of the original is stacked on the duplex unit (S221: Yes), the operator instructs the operator to reset the original and remove the paper from the sorter bin after completion of stapling in step (S222). Is displayed on the operation unit 50. Then, the process waits for resetting of the original (S223). The original is set (S223: Y
es), if the start key 309 is pressed (S224:
(Yes), it is checked whether the stapling is completed and the sheet in the sorter bin is removed (S225). If stapling is completed and the sorter bin is not removed
(S225: No), the paper removal F1g is set (S2
26).

If the stacking is not performed on the duplex unit as in the single-sided to single-sided mode (S221: No), after stapling is completed (S227: Yes), in step (S228), the operator resets the original and removes the paper from the sorter bin. Is displayed on the operation unit 50, and the process waits for resetting of the original and removal of the sheet from the sorter bin (S229).
When paper is removed from the sorter bin and originals are set
(S229: Yes), the process proceeds to step (S224). Therefore, after the start key 309 is pressed, the step (S225) becomes Yes, and the sheet removing F1g is not set. After pressing the start key 309,
The number of copies n to perform the next copying operation is recalculated from the number of sorters M, the set number N, and the total number of copies (S203),
The above-described copying operation is repeated. If the paper is not removed from the sorter bin (paper removal F1g is set),
After the copying operation of the back side document is completed (S208: Yes), the completion of stapling and the removal of the sheet from the sorter bin are checked.
(S213). If stapling has not been completed or paper removal has not been performed (S213: No), a paper removal message is displayed on the operation screen (S214), and paper removal is waited. When the paper is removed (S213:
Yes, the paper removal F1g is reset (S215), and the process proceeds to the back side copying operation (S209). Since the paper removal F1g is reset from the next original, the step (S
208) is Yes, copying is performed up to the final document. When the set number of copies and the total number of copies become equal (S2
20: Yes), the copying ends.

[0029]

According to the first and second aspects of the present invention, the number of bins is not limited by the number of bins in the sort mode. Paper removal from bin by operator and A
The copying operation is restarted only by resetting the document in the DF, and the set number of copies is obtained, thereby improving the usability. Effects corresponding to the third and fourth aspects: The same effects as the effects corresponding to the first and second aspects can be obtained also in the duplex copying mode.

In the image forming apparatus in which the staple mode has been set, the copying operation is resumed only by the operator removing the paper from the bin and resetting the original in the ADF. A stapled copy of the copied number of copies is obtained. According to the sixth aspect, by notifying the operator of forgetting to remove the sheet from the sorter bin, the interruption time of the copying operation due to the removal of the sheet from the sorter bin can be reduced, and the usability can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an image forming apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing one embodiment of a control system of the image forming apparatus of the present invention.

FIG. 3 is an external view of an operation unit of the image forming apparatus of the present invention.

FIG. 4 is a diagram illustrating an example of a display screen of the image forming apparatus according to the present invention.

FIG. 5 is a diagram for explaining a copy job division process in the sort mode in the image forming apparatus of the present invention.

FIG. 6 is a diagram for explaining an operation flow in the image forming apparatus according to claims 1 and 2 of the present invention.

FIG. 7 is a diagram for explaining an operation flow in the image forming apparatus according to claims 3 and 4 of the present invention.

FIG. 8 is a diagram for explaining an operation flow in the image forming apparatus according to claims 3 and 4 of the present invention.

FIG. 9 is a diagram for explaining an operation flow in the image forming apparatus according to claim 5 of the present invention.

FIG. 10 is a diagram for explaining an operation flow in the image forming apparatus according to claim 5 of the present invention.

FIG. 11 shows a display screen 1 of the image forming apparatus according to the present invention.
FIG. 5 is a diagram similar to FIG. 4 for explaining an example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Device main body, 11 ... Paper feed unit, 12 ... Double-sided unit, 13 ... Photoconductor, 14 ... Optical system, 15 ... Fixing device, 1
6 contact glass, 20 sortas stapler, 21
... Switching claws, 22 ... Proof tray, 23 ... Bin, 2
6 stapler, 27 stapler unit, 50 operating unit, 301 numeric keypad, 302 liquid crystal screen, 303
Guidance key, 304: Program key, 306: Brightness adjustment knob, 307 mode clear / remaining heat key, 30
8 Interrupt key, 309 Start key, 401 Message area, 402 Copy number display area, 403 Automatic density key, 404 Automatic paper selection key, 405 Paper scaling key, 406 Sort key, 407 Stacker , 408: staple key, 409: special original feed key, 410: slightly larger key, 411: magnification (enlargement)
Key, 412 ... double-sided key,

Continued on the front page F-term (reference) 2H027 DA42 DB03 DC09 EH10 EK04 FA02 FA13 FA21 FA22 FA23 FA25 GA30 GB05 GB09 GB19 2H072 AA22 AB12 AB18 FB02 FB08 FC07 GA08 3F050 BD03 BD06 BD07 BE01 CB06 CB08 CE06 LA02 LB03

Claims (6)

[Claims] An automatic document feeder for feeding a set of originals to an exposure position, a copying unit for copying the originals,
Post-processing means having a sorter having a plurality of bins for storing copy paper, means for detecting the presence of copy paper in the bin, and copy control means for controlling the copying, wherein the number of bins is When a copy number exceeding the number of copies is set, the copy control means divides the copy according to the number of bins of the sorter, and at that time, sets the number of copies to obtain the set number of copies. In a copy cycle involving discharge of copy paper into the bin, when copy paper is present in the bin, copying is performed so as to interrupt copying by resetting the document until the document is removed from the bin. An image forming apparatus for controlling an operation. 2. The image forming apparatus according to claim 1, wherein the number of bins of the sorter of the post-processing device, the number of copies to be executed at one time based on the set number of copies, and a copy sheet are calculated. Instruction means for issuing a next copy instruction when a copy cycle to be discharged to the bin is completed, wherein the copy control device controls the copy means based on the calculated number of copies. Image forming apparatus. 3. The double-sided tray according to claim 1, wherein the copy unit temporarily stores a copy sheet on which an image has been formed on one side and re-feeds the sheet to form an image on the other side. An image forming apparatus characterized in that the image forming apparatus is a two-sided copying device provided with: 4. The image forming apparatus according to claim 3, wherein said copy control means is configured to output a copy of the original when there is no copy paper in the bin in a copy cycle involving discharge of the copy paper to said bin. The re-setting allows a copying operation by re-feeding the single-sided copied paper, and if a copying paper is present in the bin, controls to suspend the copying operation until the copying paper is removed. Image forming apparatus. 5. The image forming apparatus according to claim 4, further comprising a post-processing unit for performing stapling processing of the copy sheet, and wherein the control unit includes a copy cycle including discharging the copy sheet to the bin. In this case, when there is no copy paper in the bin, resetting of the original enables the copying operation by refeeding the single-sided copied paper, and when there is copy paper in the bin, stapling is completed and An image forming apparatus for performing control for interrupting a copying operation until removal is performed. 6. The image forming apparatus according to claim 1, wherein a sheet is present in a bin.
An image forming apparatus comprising a display unit for displaying the effect.