JP2000250360A - Image forming device, image magnification control method and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a book-bound substance fit to the size of copying paper set in an inserter without troublesome setting by automatically deciding the size of the paper and performing the appropriate magnification of an image in accordance with the size of the paper, and to easily execute jamming processing even if the fed paper is jammed in the inserter by feeding the paper after completing to house the paper in the inserter in the case of performing bookbinding operation using the inserter. SOLUTION: This device is provided with a finisher control part 501 which discriminates the size of paper for postprocessing according to the detected result by a paper feeding sensor, and a CPU circuit part 150 which selects the size of paper for forming an image at the time of forming the image according to the results of the discrimination of the size of an original and the decision of the size of the paper for postprocessing and decides the magnification at the time of forming the image according to the result of the comparison of the size of the paper for forming an image with the size of the original.

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, an image magnification control method, and a storage medium, and more particularly, to a case where the present invention is applied to a copying machine or a laser beam printer having a sheet processing apparatus equipped with a paper inserter. The present invention relates to an image forming apparatus, an image magnification control method, and a storage medium that are preferable.

[0002]

2. Description of the Related Art In recent years, for example, with regard to bookbinding of copy paper in a copying machine, a preprinted cover sheet is supplied from an inserter or the like, and the supplied cover sheet is superimposed on the copied copy sheet before being stapled or saddle stitched. Simple bookbinding functions for performing such operations have become widespread.

In the case of performing saddle stitching with a digital copying machine equipped with a memory such as an electronic sorter, after reading originals stacked in page order on an automatic original feeder, pages are switched by an electronic sorter. Image formation is performed so that the pages are arranged in an appropriate page order when saddle stitching is performed. Further, depending on the document size and the copy paper size, the document image may be reduced or enlarged. In this case, it is determined whether to scale the image in accordance with the copy size input by the user.

[0004]

However, the above-mentioned prior art has the following problems. In other words, when a document image is reduced or enlarged by a copying machine, the user needs to input a copying paper size from an operation unit of the copying machine, and thus, there is a problem that the input is troublesome and an input error of the paper size easily occurs. There was a point.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and when performing a bookbinding operation using an inserter, automatically determines a copy paper size and performs appropriate image scaling according to the paper size. In this way, it is possible to generate a bound book according to the paper size set in the inserter without complicated settings, and to feed paper after the insertion paper has been stored, so that even if an inserter paper feed jam occurs, the jam will occur. It is an object of the present invention to provide an image forming apparatus, an image magnification control method, and a storage medium that can simplify processing.

[0006]

According to one aspect of the present invention, there is provided an image forming section for forming an image on an image forming sheet, and a post-processing for post-processing the post-processing sheet. And an image magnification determining image magnification based on a comparison between the size of the image forming paper selected based on the size of the post-processing paper and the size of the document to be read. It has a control means.

According to a second aspect of the present invention, there is provided a document size determining means for determining a size of a document to be read, and a sheet size determining means for determining a size of a post-processing sheet. Paper selection means for selecting a paper size for image formation at the time of image formation based on the paper size for post-processing determined by the paper size determination means, wherein the image magnification control means is selected by the paper selection means. The magnification at the time of image formation is determined based on a comparison between the paper size for image formation and the document size determined by the document size determination means.

In order to achieve the above object, the present invention according to claim 3 is characterized in that the post-processing section has a paper supply means for supplying post-processing paper.

In order to achieve the above object, according to a fourth aspect of the present invention, the paper supply means includes the paper size determination means.

In order to achieve the above object, according to the present invention as set forth in claim 5, the paper supply means has a placement means on which a sheet for post-processing is placed, and the paper size determination means has The size of the post-processing paper placed on the writing means is determined.

In order to achieve the above object, according to a sixth aspect of the present invention, the paper size determining means determines the paper size during the conveyance of the post-processing paper.

In order to achieve the above object, the present invention according to claim 7 is characterized in that the image forming section forms an image after the supply of the post-processing paper is completed.

In order to achieve the above object, the present invention according to claim 8, further comprising input means for inputting the size of the post-processing paper, wherein the paper size determining means is provided by the input means. The size of the post-processing paper is determined based on the size input.

According to a ninth aspect of the present invention, in order to achieve the above object, the post-processing performed by the post-processing section includes the step of supplying a post-processing sheet such as a cover and forming an image on the image forming sheet. Is a process of performing bookbinding by overlapping with.

According to another aspect of the present invention, there is provided an image forming apparatus comprising: an image forming section for forming an image on an image forming sheet; and a post-processing section for post-processing the post-processing sheet. An image magnification control method applied to the device,
The image processing apparatus further comprises an image magnification control step of determining a magnification at the time of image formation based on a comparison between the size of the image forming paper selected based on the size of the post-processing paper and the size of the document to be read.

According to another aspect of the present invention, there is provided a document size determining step for determining a size of a document to be read and a paper size determining step for determining a size of post-processing paper. A paper selecting step for selecting an image forming paper size at the time of image formation based on the post-processing paper size determined in the paper size determining step, wherein the image magnification control step selects the image forming paper size in the paper selecting step. The magnification at the time of image formation is determined based on a comparison between the paper size for image formation and the document size determined in the document size determination step.

In order to achieve the above object, the present invention according to a twelfth aspect of the present invention is characterized in that the post-processing section has a paper supply step of supplying paper for post-processing by paper supply means.

In order to achieve the above object, a thirteenth aspect of the present invention is characterized in that the paper supply step includes the paper size determination step.

According to another aspect of the present invention, in the paper size determination step, the size of the post-processing paper placed on the placement means of the paper supply means is determined. It is characterized by.

In order to achieve the above object, the present invention according to claim 15 is characterized in that in the paper size determining step, the paper size is determined during conveyance of the post-processing paper.

In order to achieve the above object, the present invention according to claim 16 is characterized in that the image forming section forms an image after the supply of the post-processing paper is completed.

In order to achieve the above object, the present invention according to claim 17, further comprising an input step of inputting a size of the post-processing paper, wherein the paper size determining step includes the step of: The size of the post-processing paper is determined based on the size input.

In order to attain the above object, according to the present invention, the post-processing performed by the post-processing unit includes the step of supplying a post-processing sheet such as a cover and forming an image on the image forming sheet. Is a process of performing bookbinding by overlapping with.

In order to achieve the above object, the present invention according to claim 19 is an image forming apparatus comprising: an image forming section for forming an image on image forming paper; and a post-processing section for post-processing the post-processing paper. A computer-readable storage medium storing a program for executing an image magnification control method applied to an apparatus, wherein the image magnification control method includes an image forming sheet size selected based on a size of a post-processing sheet. The image processing apparatus further includes an image magnification control step of determining a magnification at the time of image formation based on a comparison with a document size of an image reading target.

According to another aspect of the present invention, there is provided an image forming apparatus for forming an image on a sheet based on an image input by the input means. An image having a first stacking unit for stacking sheets, and a second stacking unit for stacking a sheet fed from the first stacking unit and a sheet on which an image is formed by the image forming unit; In the forming device,
An obtaining unit that obtains size information of the sheets stacked by the first stacking unit, and performs a scaling process on the image input by the input unit in accordance with the size information obtained by the obtaining unit. It is characterized by.

In order to achieve the above object, according to the present invention, there is provided an image forming apparatus, comprising: a selection unit for selecting a size of a sheet on which an image is to be formed by the image forming unit based on the size information obtained by the obtaining unit. Comparing the size of the sheet selected by the selection unit with the size of the image input by the input unit, and performing a scaling process on the image input by the input unit according to the comparison result. Features.

[0027]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a configuration diagram showing the internal structure of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention. An image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention generally includes an image forming apparatus main body 1 and a sheet processing apparatus 2. Further, the image forming apparatus main body 1 includes an image reader 200 and a printer 300, and the sheet processing apparatus 2 includes a folding apparatus 4
00 and a finisher main body 500.

Further, the image reader 200 includes a document feeder 100, a platen glass 102, a lamp 103, a scanner unit 104, mirrors 105, 106,
7, a lens 108, an image sensor 109, and a paper discharge tray 112. Further, the printer 300 includes an exposure control unit 110, a photosensitive drum 111, a developing unit 113, cassettes 114 and 115, a transfer unit 116, a fixing unit 117, a discharge roller 118, a flapper 121, a path 122, a two-sided conveyance path 124, a manual paper feed. A part 125 is provided. Furthermore,
The finisher main body 500 includes a stack tray 700, a sample tray 701, a bookbinding unit 800, and an inserter 900.

The configuration of each of the above-described units together with the operation will be described in detail.
In the image reader 200, a document is set on the tray of the document feeding device 100 in a normal view when viewed from the operator, and the binding position of the document is located at the left end of the document. The original feeder 100 feeds the set originals one by one from the top page one by one in the left direction in the drawing, that is, with the binding position at the top, and the platen glass 10 through the curved path.
2 is conveyed from left to right in the figure, and then discharged to the paper discharge tray 112. At this time, the scanner unit 10
Reference numeral 4 denotes a state in which the document is held at a predetermined position, and the document is read by passing the document from left to right in the figure on the scanner unit 104. This reading method is referred to as “flowing original reading”.

When the document passes, the light of the lamp 103 of the scanner unit 104 is irradiated on the document, and the reflected light from the document is guided to the image sensor 109 via the mirrors 105, 106, 107 and the lens 108. The original can be read by transporting the original onto the platen glass 102 by the original feeding device 100, stopping the original, and moving the scanner unit 104 from left to right in the figure. This reading method is referred to as original fixed reading. When reading a document without using the document feeder 100, the user lifts the document feeder 100 and sets the document on the platen glass 102. At this time, fixed original reading is performed.

The image of the document read by the image sensor 109 is subjected to image processing and sent to the exposure control unit 110. Exposure control section 110 outputs a laser beam according to the image signal. This laser beam is applied to the photosensitive drum 111, and an electrostatic latent image is formed on the photosensitive drum 111. The electrostatic latent image on the photosensitive drum 111 is developed by a developing device 113, and the developer on the photosensitive drum 111 is stored in a cassette 114,
The sheet is fed by the transfer unit 116 to a sheet fed from any one of the manual feeder 115, the manual sheet feeding unit 125, and the double-sided conveyance path 124.

The sheet on which the developer has been transferred is fixed to the fixing unit 11.
At 7, the developer is fixed. The sheet that has passed through the fixing unit 117 is once guided to the path 122 by the flapper 121, and after the trailing end of the sheet has passed through the flapper 121, the sheet is switched back and guided to the discharge roller 118 by the flapper 121. Thus, the sheet is discharged from the printer 300 by the discharge roller 118 with the surface onto which the developer has been transferred facing downward (face down). This is referred to as reverse paper discharge. By discharging the paper face-down, the correct page order is obtained when forming images sequentially from the first page, such as when using the document feeder 100 or when printing an image output from a computer.

When an image is to be formed on a hard sheet such as an OHP sheet from the manual sheet feeding section 125, the path 12
2, the developer is discharged from the discharge roller 118 with the surface onto which the developer has been transferred facing upward (face-up). When forming an image on both sides of the sheet, the sheet is guided straight from the fixing unit 117 to the discharge roller 118, and the sheet is switched back immediately after the trailing edge of the sheet has passed through the flapper 121. Lead to 124.

As described above, in the case of the fixed original reading,
As shown in FIG. 3A, in the sub-scanning direction, the original is read from the right end to the left end of the original, and an image is formed in order from the right end of the original. As for the main scanning direction, an image read in the direction of the arrow in the image sensor 109 is formed in the direction of the arrow near the exposure control unit 110. By sending the read image as it is to the exposure control unit 110, the original image is formed without being a mirror image.

However, in the case of original reading, FIG.
As shown in (b), the original is read from the left end to the right end of the original, and the sub-scanning direction is opposite to the fixed original reading. If the read image is sent to the exposure control unit 110 as it is, a mirror image is formed and the image is formed. Therefore, mirror image processing is performed by changing the main scanning direction to the opposite direction, and an image that is formed as a mirror image is corrected to a correct image. Then, by sending the corrected image to the exposure control unit 110, a correct image as shown in the figure is formed. Further, by performing the reverse discharge as described above, the rear end of the sheet becomes the left end of the image. Therefore, if the rear end is bound, the left end of the image is bound.

The mirror image processing can be performed by changing the sub-scanning direction to the opposite direction. However, the mirror image processing cannot be performed until one page has been read. In consideration of binding, it is preferable to change the main scanning direction.

The sheet discharged from the discharge roller 118 is sent to the folding device 400. Folding device 400
Performs a process of folding the sheet into a Z shape. When an A3 size or B4 size sheet is specified and the folding process is designated, the folding device 400 performs the folding process, and the other sheets are sent to the finisher main body 500 as they are. In the finisher main body 500, bookbinding processing, binding processing, processing such as punching, and the like are performed by the bookbinding unit 800. In addition, an inserter 900 is provided on the finisher main body 500, and feeds a cover sheet, a slip sheet, and the like to the finisher main body 500.

FIG. 1 is a block diagram showing a configuration of a control system of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention. An image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention includes a document feeder control unit 1
01, CPU circuit unit 150, image reader control unit 20
1, an image signal control unit 202, a printer control unit 301, a folding device control unit 401, a finisher control unit 501, an operation unit 50, and an external I / F (interface) 203. Further, the CPU circuit unit 150 includes a ROM 151, an R
An AM 152 and a CPU 153 are provided. In the figure, reference numeral 204 denotes a computer connected to the image forming apparatus via the external I / F 203.

The function of each of the above components will be described in detail. The CPU 153 of the CPU circuit unit 150 controls the document feeder control unit 101 and the image reader control unit in accordance with the program stored in the ROM 151 and the settings from the operation unit 50 by the user. 201, image signal control unit 202, printer control unit 301, folding device control unit 401, finisher control unit 5
01, controls the operation unit 50 and the external I / F 203. Further, the CPU 153 of the CPU circuit unit 150 executes the folding device control unit 40 based on the program of the present invention (see FIG. 38).
1. By controlling the finisher control unit 501 and the like, the following FIGS. 23 and 24, FIGS. 25 and 26, FIG.
The execution of the processes shown in the flowcharts of FIGS. 28, 29, 30, 30, 31, 32, 35, 36, and 37 is controlled.

The ROM 151 of the CPU circuit section 150 stores programs, fixed data, and the like. CPU circuit unit 15
The RAM 152 of 0 is used as an area for temporarily storing control data and a work area for calculations involved in control. The document feeder control unit 101 controls the document feeder 100, and the image reader control unit 201
00, and the printer control unit 301
0, and the folding device control unit 401
And the finisher control section 501 controls the finisher main body 500.

The image signal control unit 202 receives an image from the image reader control unit 201 and
1 is output. The external I / F 203 is an interface from the computer 203, develops print data into an image, and outputs the image to the image signal control unit 202. That is, from the image reader control unit 201 to the image signal control unit 2
02, the image read by the image sensor 109 is output, and the image signal control unit 202 sends the image to the printer control unit 30.
The image output to 1 is input to the exposure control unit 110.

FIG. 4 shows an image signal control unit 202 of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.
It is a block diagram which shows a structure centering on. An image signal control unit 202 of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention includes an image processing unit 2021, a line memory 2022, a page memory 2023, and a hard disk 2024.

The functions of the above components will be described in detail. The image processing unit 2021 performs an image correction process and a user operation unit 5.
Editing processing according to the setting from 0 is performed. Further, when the bookbinding mode is selected via the operation unit 50, the image processing unit 2021 prints on a transfer sheet based on the number of read original pages or the number of image data pages input via the external I / F 203. The image is also allocated. The line memory 2022 performs the above-described mirror image processing for switching the main scanning direction. The image to the line memory 2022 is output to the printer control unit 301 via the page memory 2023. Hard disk 2
024 is used as necessary when the page order is changed.

Next, the structure of the main part of the image forming apparatus equipped with the above-described sheet processing apparatus according to the embodiment of the present invention will be described in more detail with reference to FIGS.

[Description of Finisher Pass Configuration] FIG. 5 is a configuration diagram showing the internal structure of the finisher main body 500 of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. As shown in FIG. 5, the finisher main body 500 takes in the sheet discharged from the image forming apparatus main body 1 by using an inlet roller pair 502. Inlet roller pair 502
Downstream of the sheet, the sheet is fed to the finisher path 552 or the first path.
A switching flapper 551 for guiding to the bookbinding path 553 is provided. The sheet guided to the finisher path 552 passes through a pair of transport rollers 503 and a buffer roller 505.
Sent to The transport roller pair 503 and the buffer roller 505 are configured to be capable of normal and reverse rotation.

Inlet roller pair 502 and transport roller pair 503
Between them, an entrance sensor 531 is provided.
Near the upstream of the entrance sensor 531 in the sheet conveyance direction, the second bookbinding path 554 branches off from the finisher path 552 (a branch point here is referred to as a branch A). In the branch A, the sheet is conveyed from the entrance roller pair 502 to the conveyance roller pair 503. When the conveyance roller 503 rotates in the reverse direction and conveys the sheet from the conveyance roller pair 503 side to the entrance sensor 531 side, the second bookbinding is performed. This is a branch having a one-way mechanism that is transported only to the path 554 side.

Further, a punch unit 550 is provided between the pair of transport rollers 503 and the buffer roller 505, and operates as needed to make a hole near the rear end of the transported sheet. The buffer roller 505 is a roller on which a predetermined number of sheets fed via the pair of conveying rollers 503 can be stacked and wound around the outer periphery of the buffer roller 505. It is wound by 512, 513, and 514. The wound paper is conveyed in the rotation direction of the buffer roller 505.

A switching flapper 510 is disposed between the pressing rollers 513 and 514, and a switching flapper 511 is disposed downstream of the pressing rollers 514. The switching flapper 510 is a flapper that separates the sheet wound around the buffer roller 505 from the buffer roller 505 and guides the sheet to the non-sort path 521 or the sort path 522. The switching flapper 511 includes a buffer roller 505.
This is a flapper for guiding the paper wound around to the sort path 522 or the buffer path 523.

The paper guided to the non-sort path 521 is
The sheet is discharged to the sample tray 701 via the discharge roller pair 509. In the middle of the non-sort path 521, a paper discharge sensor 533 is provided. The sheet guided to the sort path 522 includes a transport roller pair 506 and a discharge roller pair 5.
07, an intermediate tray (hereinafter, referred to as a processing tray)
630. The sheet bundle stacked on the processing tray 630 is discharged onto the stack tray 700 by discharge rollers 680a and 680b after performing alignment processing and stapling processing as necessary. The above-described stapling process is performed by the stapler 601.

[Saddle Pass] First bookbinding pass 553, second bookbinding pass
The paper from the bookbinding path 554 is transferred to the first conveying roller pair 81.
3, the storage guide 820 by the second transport roller pair 817
The sheet is further conveyed until the leading end of the sheet comes into contact with the movable sheet positioning member 823. Downstream in the transport direction of the second transport roller pair 817, two pairs of staplers 818 are provided, and the center of the sheet bundle can be bound in cooperation with an anvil 819 disposed at a position facing the stapler 818. I can do it.

A folding roller pair 826 is provided downstream of the stapler 818. The folding roller pair 826 folds the sheet bundle extruded by the protruding member 825 and then discharges the sheet bundle to the tray 832. When folding the sheet bundle bound by the stapler 818, the sheet positioning member 823 can be lowered by a predetermined distance after the stapling so that the stapling position of the sheet bundle is at the center of the folding roller pair 826. It is.

[Inserter Pass] The inserter 900
The bundle of sheets C (see FIG. 6) provided on the upper portion of the finisher main body 500 and sequentially stacked on the tray 901 is sequentially separated, and the finisher path 552 or the first bookbinding path 553 is separated.
Transport to The sheet bundle is set with its front side up, and is conveyed by a sheet feeding roller 902 to a separation unit including a conveyance roller 903 and a separation belt 904, and is sequentially separated one by one from the top sheet.

A pull-out roller pair 905 is arranged close to the downstream of the separation unit, and stably transports the separated sheet to the downstream. A conveyance roller pair 906 is provided between the entrance roller pair 502 and the extraction roller pair 905. The transport roller pair 906 has the same drive source as the entrance roller pair 502, and the pull-out roller pair 905 is driven by the same drive source as the separation unit.

As a result, while the transfer paper is being fed from the printer 200 of the image forming unit main body 1 to the first bookbinding path 553 or the finisher path 552 of the finisher main body 500 of the sheet processing apparatus 2, the paper C is transferred. Paper C that can be separated from inserter 900 and is separated
Can be conveyed to a position in front of the conveying roller pair 906 and made to stand by, and the productivity when the cover is supplied from the inserter 900 can be improved.

A paper feed sensor 907 for detecting the separated paper is provided near the downstream side of the pull-out roller pair 905.
Is arranged. Transport path 9 from inserter 900
08, upstream of the entrance roller pair 502,
Merges with the transport path from.

[Sheet Transfer from Inserter and Image Forming Apparatus Main Body to Processing Tray] FIGS. 6 to 11 show sheets from an inserter 900 and a printer 200 of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention. FIG. 4 is a configuration diagram illustrating a flow of sheets when they are conveyed and merged. Note that, in FIG. 5, reference numerals are given to respective units, but in FIGS. 6 to 11, for convenience, the reference numerals of the main parts are shown only in FIG. 6. FIG. 6 is a configuration diagram illustrating a state in which the paper C is set on the paper tray 901 of the inserter 900. As shown in the figure,
The paper C is set so that the image surface is upward and the binding position is to the left (in the normal viewing direction) when viewed from the operator, and is fed in the direction of the arrow in the figure.

The switching flapper 551 (see FIG. 5 above, the same applies to the following members) is provided with a finisher path 552.
Side, and the sheet C is conveyed to the buffer roller 505 side with the image surface facing down (FIG. 7).
When the leading edge of the paper C reaches the entrance sensor, feeding from the printer 200 starts (not shown). Switching flapper 5
10 and 511 are all switched to the sort path 522 side (FIG. 8), and the paper C from the inserter 900 is stored in the processing tray 630 (FIG. 9). At this time, the transfer paper from the printer 200 has arrived at the finisher path 552 and is conveyed to the processing tray 630 side similarly to the paper C.

Further, the separation of the succeeding sheet C2 stacked on the sheet tray 901 is also started. As shown in FIG.
The sheet C1 on the processing tray 630 is stored with the image surface facing down and the binding position is on the stapler 601 side, and the subsequent transfer paper is also stored in the processing tray 630 in the same manner. While the transfer paper from the printer 200 is being guided to the processing tray 630, the subsequent paper C from the inserter 900
Reference numeral 2 temporarily stops at the inserter paper feeding path 920 and waits for the completion of the transfer paper transfer from the printer 200.

As described above, when the sheet C is fed from the inserter 900 to the processing tray 630, the sheet C can be stored as the first page, and the productivity in the cover mode can be improved.

The images of the sheets P1 and P2 from the printer 200 have been subjected to the above-described mirror image processing.
Since P2 is turned over and fed to the finisher side,
The sheet is stored in the processing tray 630 with the image side facing down and the stapling position as in the case of the sheet C (FIG. 11).

[Explanation of Image Forming in Bookbinding Mode] When the bookbinding mode is designated via the operation unit 50 of the image forming apparatus, the originals set in the original feeder 100 are sequentially read from the first page and read. Image to image signal control unit 20
The image reader controller 201 sequentially stores the read originals in the second hard disk 2024 and simultaneously counts the number of read originals. When the reading of the original is completed, the read originals (the number of originals is assumed to be M) are classified according to the following formula, and the image forming order and the image forming position are determined.

M = n × 4-kn: The number of sheets is represented by an integer of 1 or more.

K: takes one of the values 0, 1, 2, and 3.

Since the order of image formation and image formation position control are different from the gist of the present invention, detailed description is omitted, and in this example,
A case of eight originals which can be easily described will be described with reference to FIG. As shown in FIG. 12A, for example, eight pages of original image data (R1 to R8) are stored in the hard disk 2024 in the reading order.

[Description of Image Forming Order] FIG. 12B is a diagram showing the image forming order. After performing the above-described mirror image inversion processing on the image, R4 is added to the left half of the first surface of the first page (P1) of the sheet.
An R5 image is formed on the right half of the image, and the image is guided to the duplex conveyance path 124 of the printer 300 described above. Paper P1 is
The sheet is again fed to the transfer unit 116, and after the R6 image is formed on the left half of the second surface and the R3 image is formed on the right half of the second surface,
It is sent to the bookbinding unit 800.

Next, an R2 image is formed on the left half of the first surface of the second page (P2) of the sheet, and an R7 image is formed on the right half thereof. It is guided to the transport path 124. The sheet P2 is again fed to the transfer unit 116, where an R8 image is formed on the left half of the second surface and an R1 image is formed on the right half, and then sent to the bookbinding unit 800.

FIG. 12D is a view in which the image sent to the bookbinding unit 800 is viewed from the conveyance path. The images R6 and R3 are on the surface of the sheet P1, and the images R8 and R8 are on the surface of the sheet P2.
R1 is image-formed, and is transported in the direction of the arrow in the figure.

[Stored state of paper in bookbinding unit] FIG. 1
FIG. 2C illustrates a state of the sheets P1 and P2 stored in the storage guide 820 of the bookbinding unit 800. The sheet P1 is stored on the protruding member 825 side, and the sheet P2 is stored on the folding roller pair 826 side. I have. Further, the first surface of the sheet P1 is located on the protruding member 825 side, and the second surface of the sheet P2 is located on the folding roller 826 side. Also,
The image R6 of the sheet P1 and the image R8 of the sheet P2 are stored so as to be positioned on the positioning member 823 side (the lower side in the drawing).

[Loading of Inserter Sheets and Flow of Sheets from Inserter to Bookbinding Path] FIGS. 13 to 19 show sheets from an inserter to a bookbinding unit of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention. FIG. 3 is a configuration diagram showing the flow of the process. Note that, in FIG.
13 to 19, for convenience, only the reference numerals of the main parts are shown in FIG. When the paper set in the inserter 900 is used as the cover paper for bookbinding, as shown in the lower part of FIG. 13, the image on the front cover (image FRONT) is placed on the right half of the paper, and the image on the back cover (image (REAR) is set on the paper on which the image is formed in the left half, with the image surface facing upward and looking straight ahead from the operator.

The paper set on the tray 901 of the inserter 900 as described above is fed in the direction of the arrow in FIG. 13, that is, with the right side (the image FRONT side) of the paper at the top, and as shown in FIG. It is transported to the stacker unit side. The sheet C1 is temporarily stopped at a position where the rear end of the sheet passes through the entrance sensor 531 and is no longer driven by the entrance roller (FIG. 15). At this time, the transfer paper from the printer 300 is conveyed toward the finisher main body 500.

While the transfer paper is stored in the bookbinding storage guide 820, the separation of the succeeding paper C2 on the tray 901 is started, and the separation is temporarily stopped just before the pair of transport rollers 906, so that a predetermined number of transfer papers are transferred. It stands by until it is stored in 820 (FIG. 16). Thereafter, the sheet C1 is reversely fed and guided to the bookbinding unit 800 via the second bookbinding path 554 via the branch A (FIG. 17).

As described above, in the storage guide 820 of the bookbinding unit 800, the image REAR side of the sheet is set downward,
Further, the image surface is stacked toward the folding roller 826 side. When the sheet C1 is stored in the bookbinding storage guide 820, the conveyance of the subsequent sheet C2 to the position shown in FIG. 15 is started (FIG. 18). If the paper fed from the inserter 900 is of an inappropriate size, it is discharged to the sample tray 701 without stopping in the state of FIG. 15 (FIG. 19).

In the case of transporting the sheet from the inserter 900 to the processing tray 630 described with reference to FIG.
It only stops once before 06, but the inserter 9
00 to the bookbinding unit 800,
06, it is possible to perform a temporary stop in the finisher body 500 shown in FIG.
The optimum temporary stop position can be selected according to the post-processing mode, and the productivity can be kept in each post-processing mode.

[Description of page order in bookbinding state] FIGS. 20 and 2
Reference numeral 1 denotes a printer 300 of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.
FIG. 9 is an explanatory diagram illustrating a state immediately after the cover sheets C1 are conveyed from the inserter 900 to the bookbinding unit 800 after the sheets P1 and P2 are stored in the bookbinding unit 0 and a state after the bookbinding process. In FIG. 20, sequentially from the protruding member 825 side,
The sheets P1 and P2 are stored in an overlapping state. In this state, the folding roller pair 8 is
When the sheet bundle is pushed into the 26 side, the sheet bundle is folded by the pair of folding rollers 826, and a bookbinding state as shown in FIG. 21 is obtained.

That is, by the above-described control of the image forming order and the paper feed control from the inserter 900, when the sheet bundle is finished in the bookbinding state, the left end portion becomes the binding position, and the image of the cover sheet becomes the first page and the last page. The images are arranged so that the directions of the images from the image forming apparatus match, and the pages can be arranged in the same order.

[Explanation of Finisher Control] FIG. 22 is a block diagram showing a detailed configuration of the finisher control section 501 of the finisher main body 500 in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. The finisher control unit 501 according to the embodiment of the present invention
It includes a PU circuit section 510, a communication IC 514, various driver circuits 520, various clutches, various sensors, various motors, and various switching solenoids. As shown in FIG. 1, reference numeral 150 denotes a CPU circuit which controls the entire image forming apparatus.

The function of each section will be described in detail. The CPU circuit section 510 includes a CPU 511, a ROM 512, and a RAM 51.
3 and the like, and exchanges data by communicating with the CPU circuit unit 150 of the image forming apparatus main body 1 via the communication IC 514, and performs control according to various programs stored in the ROM 512. Various driver circuits 520 include:
The motor, solenoid, and clutch are driven in response to a signal from the CPU circuit unit 510.

M1 is an inlet motor as a drive source of the inlet roller pair 502, the transport roller pair 503, and the transport roller pair 906, M2 is a buffer motor as a drive source of the buffer roller 505, M3 is a transport roller pair 506, and a discharge roller pair. 5
M4 is a bundle discharge motor that drives discharge rollers 680a and 680b. The inlet motor M1, the buffer motor M2, and the paper discharge motor M3 are stepping motors. By controlling the excitation pulse rate, the pair of rollers driven by each motor can be rotated at a constant speed or at a unique speed. it can. The drive circuits of the inlet motor M1 and the buffer motor M2 are configured to be able to rotate forward and backward.

M10 is a conveyance motor that is a driving source of the conveyance roller pair 813 of the bookbinding unit 800, M11 is a positioning motor that is a driving source of the sheet positioning member 823, and M12 is a protrusion member 825 and a folding roller pair 82.
6. A folding motor which is a driving source of the folding paper discharge roller pair 827. The transport motor M10 and the positioning motor M11 are stepping motors, and the folding motor M12 is a DC motor. The transport motor M10 is capable of transporting the paper in synchronization with the speed of the entrance motor M1. M20 is a paper feed motor that is a driving source of the paper feed roller 902, the transport roller 903, the separation belt 904, and the pull-out roller pair 905 of the inserter 900. The paper feed motor M20 is a stepping motor, and can convey paper in synchronization with the speed of the entrance motor M1.

SL1 is a solenoid for switching the switching flapper 510, SL2 is a solenoid for switching the switching flapper 511, and SL10 is a solenoid for switching the switching flapper 511.
A solenoid for switching 51. SL20 is a solenoid that drives the paper feed shutter of the inserter 900, and SL21 is a solenoid that drives the paper feed roller 902 up and down. CL1 is a clutch for transmitting the drive of the folding motor M12 to the protruding member 825.
Reference numeral 0 denotes a clutch for transmitting the drive of the paper feed motor M20 to the paper feed roller 902. In addition, the entrance sensor 53
1. Outputs from sensors required for control, such as a bookbinding entrance sensor 817, a bookbinding discharge sensor 830, a paper feed sensor 907, a paper set sensor 910, and a paper width detection sensor 912 are connected.

FIG. 40 is an explanatory diagram showing a conceptual example in which the program and related data of the present invention are supplied from a storage medium to an image forming apparatus. The program and related data of the present invention are stored in a storage medium 40 such as a floppy disk or a CD-ROM.
01 is inserted into a storage medium drive insertion slot 4003 provided in the image forming apparatus 4002. After that, the program of the present invention and related data are stored in the storage medium 40.
The program of the present invention and related data can be executed by temporarily installing the program from the hard disk 01 and loading it to the RAM from the hard disk, or by loading it directly to the RAM without installing it on the hard disk.

FIG. 39 is an explanatory diagram showing a configuration example of the storage contents of a storage medium storing the program and related data of the present invention. The storage medium of the present invention stores, for example, volume information 3
901, directory information 3902, program execution file 3903, program-related data file 390
4 and the like. The program of the present invention
23, FIG. 24, FIG. 25, FIG. 26, FIG. 27, FIG. 28, FIG. 29, FIG. 30, FIG. 31, FIG.
6. Program code based on the flowchart shown in FIG.

The correspondence between the components in the claims of the present invention and the components in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention is as follows. The image forming section corresponds to the image forming apparatus main body 1, the post-processing section corresponds to the sheet processing apparatus 2, and the document size determining section, the sheet selecting section, and the image magnification controlling section correspond to the CPU circuit section 150 of the image forming apparatus main body 1. The paper size determination unit corresponds to the paper feed sensor 907 and the finisher control unit 501 of the inserter 900, the paper supply unit corresponds to the inserter 900, the placing unit corresponds to the paper tray 901 of the inserter 900, and the input unit. Corresponds to the operation unit 50 of the image forming apparatus main body 1.

Next, an operation mode determination processing procedure, a non-sort processing procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention configured as described above,
FIGS. 23, 24, 25, and 26 show a sort processing procedure, a staple sort processing procedure, a pre-inserter paper feed processing procedure, a bookbinding processing procedure, an inserter paper feed processing procedure, an automatic paper selection processing procedure, and an automatic scaling processing procedure. , FIG. 27, FIG.
8, FIG. 29, FIG. 30 / FIG. 31, FIG. 32, FIG. 35, FIG.
A detailed description will be given centering on the flowchart of FIG.

[Operation Mode Determination Processing Procedure] FIGS. 23 and 2
4 is a flowchart illustrating an operation mode processing determination procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. First, the process waits until the finisher start signal is turned on (step S2301). When a start key for starting copying provided on the operation unit 50 of the image forming apparatus main body 1 is pressed, and a start signal is input to the CPU 511 of the CPU circuit unit 510 via the communication IC 514 of the finisher control unit 501. , The finisher start is turned on. And the CPU 511
Starts driving the entrance motor M1 (step S23).
02). Here, if the finisher start signal is not turned on, the standby state is continued.

Subsequently, the CPU 511 operates as a communication IC 514.
It is confirmed whether or not there is a paper feed request from the inserter 900 in the data (step S2303). Step S23
If there is a paper feed request at 03, a pre-inserter paper feed process described later is performed (step S2304). Inserter 900
Is sent to the finisher main body 500 when “inserter” is selected in the cover designating menu on the operation unit 50 of the image forming apparatus main body 1 shown in FIG. If there is no inserter sheet feed request in step S2303, or if inserter pre-sheet feeding has been completed in step S2304, a sheet feed signal is output to image forming apparatus main body 1 via communication IC 514 (step S230).
5). In response to this, the image forming apparatus main body 1 starts the image forming operation.

Next, from the image forming apparatus main body 1 to the communication IC 5
The operation mode is determined on the basis of the post-processing mode data transmitted via. The post-processing mode data can be specified on the operation unit 50 of the image forming apparatus main body 1, and non-sort, sort, staple sort (binding mode), and bookbinding mode are selected from the post-processing selection menu shown in FIG. First, it is determined whether the operation mode (post-processing mode) is the bookbinding mode (step S2306). If the operation mode is the bookbinding mode in step S2306, the bookbinding mode is executed (step S2307).

On the other hand, if the operation mode is not the bookbinding mode in step S2306, it is determined which mode is the bookbinding mode (step S2308). If the operation mode is the non-sort mode in step S2308, non-sort processing is performed (step S2309). If the operation mode is the sort mode, sort processing is performed (step S2310). If the operation mode is the staple sort mode, The staple sort process is performed (step S2311). When any one of the above-described steps S2309 to S2311 ends, the entrance motor M
1 is stopped (step S2312), and the process returns to the step S2301 to be in a standby state.

The pre-inserter sheet feeding process in step S2304 is a process performed when inserter sheet feeding is specified, and when the process is performed, step S23 is performed.
07, step S2309, step S2310, and step S2311, the pre-inserter sheet feeding process is performed in advance.

[Non-Sort Processing Procedure] FIG. 27 is a flowchart showing a non-sort processing procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. If the non-sort processing is entered in step S2309 of the operation mode determination processing in FIG. 24 described above, the flapper 510 is driven to select the non-sort path 521 to guide the sheet P to the sample tray 701 of the finisher body 500 (step S2309). S2701). Then
It is determined whether the finisher start is on (step S2702). If the finisher start is on in step S2702, the printer 300
Is discharged into the paper path in the finisher main body 500.

The loaded sheet P is conveyed by the entrance motor M1, and the leading end of the sheet P is detected by the path sensor 531 disposed in the path, and the control waits until the path sensor 531 is turned on (step S2703). Further, the sheet P is conveyed, and waits until the trailing edge of the sheet P passes through the path sensor 531 and the path sensor 531 is turned off (step S2704). When the path sensor 531 is turned off, the process returns to step S2702, and when the finisher start is on, the same process is continued.

If the finisher start is turned off in step S2702, the process waits until all sheets are discharged to the sample tray 701 (step S270).
5) When all the sheets have been discharged to the sample tray 701, the operation of the flapper 510 is released (step S27).
06), the non-sort processing ends.

[Sort Processing Procedure] FIG. 28 is a flowchart showing a sort processing procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. Step S231 of the above-described operation mode determination processing of FIG.
When the sorting process is designated at 0, the processing tray 63
The flapper 511 is driven to guide the sheet P to 0, and the sort path 522 is selected (step S2801). Next, it is determined whether the finisher start is on (step S2802). The sheet P discharged from the printer 300 is carried into the finisher main body 500. The conveyed sheet P is conveyed by the entrance motor M1, and waits until the leading end of the sheet P is detected by the path sensor 531 arranged in the path (step S280).
3). When the path sensor 531 is turned on, a sort sheet sequence assigned to each sheet conveyed is started (step S2804).

The sort paper sequence is subjected to multitask processing by the CPU 511 of the finisher control unit 501.
Start / stop control of buffer motor M2, discharge motor M3
The sheet interval is expanded by performing the acceleration / deceleration control, and the alignment process is performed for each sheet by the alignment member provided in the processing tray 630. When the stacking in the processing tray 630 is completed, the stack tray 700 Perform a bundle discharge operation to
This is a series of processing sequences.

Next, the sheet P is conveyed, and waits until the trailing end of the sheet P is detected by the path sensor 531 (step S2805). When the path sensor 531 is turned off, the process returns to step S2802, and when the finisher start is on, the same process is repeated. Step S2 above
When the finisher start is turned off at 802, the process waits for all sheets to be discharged to the stack tray 700 (step S2806). If all sheets are discharged to the stack tray 700, the operation of the flapper 511 is released (step S2806). S2807), the sort processing ends.

[Staple Sorting Procedure] FIG. 29 is a flowchart showing a staple sorting procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. When the sort process is selected in step S2311 of the operation mode determination process in FIG. 24 described above, the flapper 511 is driven to guide the sheet P to the processing tray 630, and the sort path 522 is selected (step S2901). Next, it is determined whether or not the finisher start is on (step S2902). The sheet P discharged from the printer 300 is carried into the finisher main body 500. The conveyed sheet P is conveyed by the entrance motor M1 and waits until the leading end is detected by the path sensor 531 arranged in the path (step S2).
903). When the path sensor 531 is turned on, a staple sort paper processing sequence is started (step S290).
4).

The staple sort paper processing sequence is subjected to multitask processing by the CPU 511 of the finisher control unit 501 to control the start / stop of the buffer motor M2.
When the sheet interval is enlarged by performing the acceleration / deceleration control of the sheet discharge motor M3, the alignment process is further performed for each sheet by the alignment member provided in the processing tray 630, and the stacking in the processing tray 630 is completed. Stapling in place,
This is a series of processing sequences for performing a bundle discharging operation to the stack tray 700.

Further, the sheet P is conveyed, and waits until the trailing end of the sheet P is detected by the path sensor 531 (step S2905). When the path sensor 531 turns off, the process returns to the step S2902, and when the finisher start is on, the same process is repeated. Step S2 above
When the finisher start is turned off at 902, the process waits for all sheets to be discharged to the stack tray 700 (step S2906). If all the sheet bundles have been discharged to the stack tray 700 (YES at step S2906), the flapper is started. The operation of Step 511 is canceled (Step S
2907), the staple sort process ends.

[Feeding Process Before Inserter] FIGS. 25 and 26 are flowcharts showing the feeding process before inserter in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. First, inserter 900
Of paper (hereinafter referred to as a paper bundle C) on a paper tray (document set tray) 901 of the image forming apparatus main body 1
A check before feed of inserter sheet designation data and the like from the operation unit 50 is performed, and an image formation prohibition signal of the image forming apparatus main body 1 is sent (step S2520). Inserter 900
If the paper feed condition from is satisfied, a series of pre-separation processing is performed.

That is, the drive of the shutter solenoid SL20 is turned on, the sheet feed shutter of the inserter 900 is pulled, and then the drive of the pickup solenoid SL21 is turned on.
To land on the sheet bundle C. At the same time, the driving of the paper feed clutch CL10 is turned on, and the paper feed motor M2 is turned on.
0 is transmitted to the paper feed roller 902 (step S2521). After a lapse of a predetermined time, the feed motor M20
, The conveying roller (separation roller) 903, the separation belt 904, the pull-out roller pair (paper feed roller pair) 9
Rotate 05. As a result, the top sheet (C1) of the sheet bundle C is guided to the separation unit (step S2522).

Pull-out roller pair (paper feed roller pair) 905
When the paper feed sensor 907 downstream of the printer detects the leading end of the paper C1, the driving of the paper feed clutch CL10 is turned off, and the clock counting operation from the clock sensor provided in the paper feed motor M20 is started. When the count value from the clock sensor reaches a predetermined value (N1), the sheet feeding motor M20 is turned off, and the sheet C1 is temporarily stopped just before the pair of conveying rollers 906 (step S2523).

When the feeding of the transfer paper from the printer 300 is completed, it is checked whether or not a request for re-feeding the paper C1 is made to the inserter 900 (step S2524). The driving of the paper motor M20 is started, and at the same time, the buffer motor M2 and the paper discharge motor M3 are turned on. When the sheet feed sensor 907 detects the trailing edge of the sheet, the counting operation ends, and the length of the sheet C1 in the transport direction is detected from the count result (step S25).
25).

Next, the length of the sheet C1 is determined in step S2.
It is determined whether or not it matches the sheet designation data obtained in 520 (step S2526), and if it matches, the operation mode is confirmed (step S2528). If it is determined in step S2526 that there is no match, the switching flapper 510 is switched to the non-sort path 521, the fed paper C1 is discharged to the sample tray 701, and a warning that improper paper has been set is issued. The data is sent to the image reader 200 of the apparatus main body 1 (step S2527).

If the operation mode is the non-sort mode in step S2528, the process proceeds to step S2527.
As in the case of (1), the sheet is discharged to the sample tray 701 (step S2529). If the operation mode is the sort mode or the staple sort mode in step S2528, the switching flapper 510 and the switching flapper 511 are both switched to the sort path 522 and guided to the processing tray 630. An alignment operation is performed on the processing tray 630, and the stapler 601 can perform a bookbinding process or the like by successively stacking subsequent sheets. Further, on the processing tray 630, the image surface of the paper C1 is stacked downward (step S2530).

If the operation mode is the bookbinding mode in step S2528, the switching flapper 510 is switched to the non-sort path 521, and the leading end of the sheet C1 is guided to the non-sort path 521. The trailing end of the sheet C1 is the transport roller pair 5
03, the drive of the buffer motor M2 and the discharge motor M3 is stopped, and the sheet C1 is made to wait in the finisher path. At this time, the entrance motor M1 is continuously driven, but the rear end of the sheet C1 has passed through the pair of conveying rollers 503, so that no conveyance force is received (Step S).
2531).

Steps S2529 to S25
When one of the processes 31 is completed, the image formation prohibition signal is released, the driving of the paper feed motor M20 is turned off, and the presence or absence of paper on the paper tray (document set tray) 901 is confirmed by the paper set sensor 910. . If there is no paper, the drive of the shutter solenoid SL20 is also turned off, and the paper feed shutter is returned. If there is a sheet, the drive of the shutter solenoid SL20 is kept on (step S2).
532).

[Bookbinding Processing Procedure] FIGS. 30 and 31 are flowcharts showing a bookbinding processing control procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. First, the CPU circuit unit 15 of the image forming apparatus main body 1
0 to the finisher controller 5 of the finisher body 500
01 is determined based on the size information as to whether or not the paper size sent to the printer is suitable for bookbinding (step S3).
001). If the paper size is a size suitable for bookbinding, a bookbinding initial operation is performed (step S3002).

In the bookbinding initial operation, the bookbinding unit carrying motor M10 is turned on to set the first carrying roller pair (bookbinding roller pair).
By turning on the drive of the bookbinding switching solenoid SL10 at the same time as turning the sheet 813 so that the sheet can be conveyed, the switching flapper is switched to the first bookbinding path 553 side, and the paper from the image forming apparatus main body 1 is transferred to the bookbinding unit 800. Let me be guided. In addition, the width adjustment member (not shown) is positioned so as to have a width having a predetermined amount of margin with respect to the sheet width, and the sheet positioning member 823 and the stapler 8 are positioned.
The distance of the stapling position of No. 18 is 1 of the length of the sheet in the conveying direction.
The positioning motor M11, which is a stepping motor, is rotated by a predetermined number of steps so that the rotation speed becomes 1/2. If it is determined in step S3001 that the paper size is not suitable for bookbinding, the process exits the bookbinding process to perform the process in the non-sort mode.

Next, it is confirmed from the signal of the bookbinding entrance sensor 817 that the paper has arrived at the bookbinding unit 800 (step S3003), and after a predetermined time has elapsed, the width adjusting member (not shown) is operated to move the paper in the paper width direction. A matching operation is performed (step S3004). Until the paper arrives in step S3003, the bookbinding initial operation state is continued. When the alignment operation is completed, it is determined whether the sheet being processed is the last sheet of the bookbinding processing bundle (step S3005). In the case of the last sheet, an image formation inhibition signal is output to the CPU circuit unit 150 of the image forming apparatus main body 1 (step S3006), and
Thereafter, a series of post-processing is performed. If the sheet being processed is not the last sheet in step S3005, the process proceeds to step S3.
Return to 003 and wait for the arrival of the next sheet.

Next, it is confirmed whether or not the cover paper transport mode from the inserter 900 is designated (step S).
3007) If it is designated, after performing the inserter sheet feeding process (step S3008) described later, the stapler 818 performs the binding process (step S300).
9). When the binding process is completed, the sheet positioning member 823 is lowered, and the bookbinding unit transport motor M1 is again moved.
0 is turned on, and the sheet bundle is transported by a distance between the nip point of the folding roller pair 826 and the stapling position of the stapler 818 (step S3010).

Next, the drive of the folding clutch CL1 is turned on, and the folding motor M12 is rotated to move the projecting member 825 in the direction of the arrow in FIG. As a result, the center (staple position) of the sheet bundle is aligned with the folding roller pair 826.
And the sheet bundle is folded in two. The projecting member 825 is moved forward and backward by the cam mechanism, and the sensor (not shown) detects that the projecting member 825 has reciprocated once, and turns off the drive of the folding clutch CL1 (step S).
3011).

When the bookbinding discharge sensor 830 detects the trailing end of the folded bundle, it is determined that the folded bundle has been discharged (step S3012), and the drive of the folding motor M12 is stopped (step S3013). Subsequently, it is determined whether or not the discharged folded bundle is the final bundle (step S3014). If the discharged folded bundle is the final bundle (YE in step S3014)
S), a width shifting member (not shown) and a sheet positioning member 8
23 in the respective standby positions, and the switching flapper 5
51 is switched to the finisher path 552 to end the bookbinding mode (step S3015). Step S3 above
If it is determined in step 014 that the discharged folded bundle is not the final bundle, the image formation prohibition signal is released and the image forming apparatus main body 1
(Step S301)
6), and return to step S3002.

[Inserter Paper Feeding Procedure] FIG. 32 is a flowchart showing an inserter paper feeding processing procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention. The paper C from the inserter 900 is waiting in the finisher path as shown in FIG. First, the rotation of the entrance motor M1 and the buffer motor M2 is set to reverse rotation, and the respective drives are started. At the same time, the drive of the bookbinding conveyance motor M10 is started (step S3).
250). Thus, the sheet C is guided to the bookbinding unit 800 as described with reference to FIG. It is detected that the rear end of the paper C is detected by the entrance sensor 531 (step S3251), and the entrance motor M1 and the buffer motor M are detected.
2 is prohibited (step S3252). If the trailing end of the sheet C is not detected in step S3251, the conveyance of the sheet C is continued.

Next, it is confirmed whether or not the bundle being processed is the final bundle (step S3253).
A start command for the above-described pre-inserter sheet feeding process is issued (step S3254). After issuing the start command in step S3254, or in step S3253
If it is determined in step S3 that the bundle being processed is the final bundle, it is checked whether the bookbinding entrance sensor 817 has detected the trailing end of the sheet C (step S3255). ) To perform the alignment operation in the paper width direction (step S3256), and exit the inserter paper supply processing procedure. When the pre-inserter feed processing command is issued in step S3254, the above-described pre-inserter feed processing is executed in parallel with a series of bookbinding processing.

[Automatic Paper Selection Processing Procedure of Image Forming Apparatus Main Body] FIG. 35 shows an image forming apparatus equipped with a sheet processing apparatus according to the embodiment of the present invention. Mode to be used) is selected and the post-processing mode (sort mode,
Operation modes such as staple sort mode and bookbinding mode)
9 is a flowchart illustrating a sheet selection procedure when is selected. When the copy start key is selected from the operation unit 50 of the image forming apparatus main body 1 (step S350)
1), the CPU circuit unit 150 of the image forming apparatus main body 1 transmits a command for starting the pre-inserter sheet feeding process to the CPU 511 via the communication IC 514 of the finisher control unit 501 of the finisher main body 500 (step S3502).

Next, the image forming apparatus main body 1 waits for paper feeding (step S3503). When the image forming apparatus main body 1 receives the feed paper size information of the inserter 900 (step S3504), the paper size in the image forming apparatus main body 1 is set to the same size as the paper size set in the inserter 900 (step S3505). The inserter feed size detection is performed in the processing shown in steps S2520 to S2523 of FIG. 25 as described above.

As described above, in the present embodiment, when the mode using the inserter 900 is set by the user in the operation unit, the sheet is conveyed from the inserter 900 before the sheet is conveyed from the printer unit 300. Start. Then, the size information of the sheet fed from the tray 901 of the inserter 900 is acquired by using the sheet feed sensor 907 or the like, and the size of the sheet to be image-formed by the printer unit 300 is automatically determined based on the acquired size information. Selected, and the reader unit 200 is attached to the sheet of the selected size.
To form an image of the read original.

For example, on the apparatus main body side, the cassette 1
14 has A4 size sheets, and cassette 115 has A
It is assumed that sheets of three sizes are stored. on the other hand,
The user stacks sheets on the tray 901 of the inserter 900 and stacks documents on the tray of the document feeding unit 100, sets a mode of using the inserter 900 on the operation unit of the apparatus main body, and performs image forming processing. Is started, the sheet feeding from the inserter 900 is started, and the tray 90 of the inserter 900 is started.
The size of the sheet fed from step 1 is determined. And
For example, when it is determined that the sheet size from the inserter 900 set by the user is A4 size, the sheet is supplied from the cassette 114, and the supplied sheet, that is, the A4 size sheet is read by the reader unit 200. To form an image of the original. In addition, inserter 90
If it is determined that the size of the sheet from 0 is the A3 size, the sheet is supplied from the cassette 115, and an image of the document read by the reader unit 200 is formed on the supplied sheet, that is, the A3 size sheet.

As a result, the sheet to be mixed with the sheet supplied from the inserter 900 (ie, the printer unit 30)
When the inserter 900 is used, the user does not need to set the size of the sheet on which an image is to be formed at 0 using the operation unit. The operability for the user in is improved.

Further, for example, even when the size of the sheet set in the inserter 900 is different from the size of the document set in the document feeding unit 100, the size of the sheet from the inserter 900 and the size of the sheet on which the image of the document is formed are different. Since these can be matched with the size, these can be processed collectively as one bundle, and processing desired by the user such as stapling processing and bookbinding processing can be performed.

In the embodiment of the present invention, the sheet size of inserter 900 is determined using a sensor. However, the user inputs the sheet size of inserter 900 from operation unit 50 of image forming apparatus main body 1. You may.

[Automatic Magnification Processing Procedure] FIGS. 36 and 37 show an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention. 9 is a flowchart illustrating an auto-magnification processing procedure when a post-processing mode (an operation mode such as a sort mode, a staple sort mode, or a bookbinding mode) is selected. The automatic scaling process is a feature of the present invention. When the copy start key of the operation unit 50 of the image forming apparatus main body 1 is selected (step S3611), the CPU circuit unit 150 of the image forming apparatus main body 1 transmits the communication IC 514 to the finisher control unit 501 of the finisher main body 500. Then, a command to start the pre-inserter sheet feeding process is transmitted (step S3612).

Next, the image forming apparatus main body 1 waits for paper feeding (step S3613). C of the image forming apparatus main body 1
When the PU circuit unit 150 receives the paper size information of the inserter 900 (step S3614), the paper size of the image forming apparatus main body 1 is set to the same size as the paper size of the inserter 900 (step S3615). The paper feed size detection in the inserter 900 is performed in the processing shown in steps S2520 to S2523 of FIG. 25 as described above. Next, the document feeder 10
The document feeding is started from 0, and while the document is being conveyed, the document size is determined by the CPU circuit unit 150 based on the signal of the sensor that detects the document being conveyed (step S361).
6).

Next, the paper size in step S3615 is compared with the document size in step S3616 (step S3617). Step S36
If the original size and paper size are the same in step 17,
1 × mode processing is performed. That is, no scaling process is performed (step S3618). If the document size is larger than the paper size in step S3617, a reduction mode process is performed (step S3619). If the document size is smaller than the paper size in step S3617, enlargement mode processing is performed (step S362).
0). For example, as shown in FIG. 38, if the paper size is A4 and the document size is B5, the image of the document is copied by being enlarged by about 15%.

According to the above control, when the document size and the paper size are different, the magnification of the document image is changed according to the paper size.

As described above, in the present embodiment, when the mode using the inserter 900 is set by the user in the operation unit, the conveyance of the sheet from the inserter 900 is performed before the conveyance of the sheet from the printer unit 300. Start. Then, the size information of the sheet fed from the tray 901 of the inserter 900 is acquired by using the sheet feed sensor 907 or the like, and based on the acquired size information, a scaling process is performed on the image of the document read by the reader unit 200. I do.

For example, the inserter 900
The stacking of sheets on the tray 901 and the stacking of documents on the tray of the document feeding unit 100 are performed, a mode for using the inserter 900 is set on the operation unit of the apparatus main body, and the start of the image forming process is instructed. If so, first, the size of the sheet fed from the tray 901 of the inserter 900 is determined. Then, for example, when it is determined that the sheet size from the inserter 900 set by the user is A4 size, a cassette storing A4 size sheets (a cassette for storing image forming sheets, For example, selection is made so that sheets can be supplied from the cassette 114). In parallel with this processing, the size of the document set on the tray of the document feeding unit 100 is determined. Then, the determined size of the document is compared with the size of the sheet on which an image is to be formed, and a scaling process is performed on the image of the document read by the reader unit 200 according to the comparison result. For example, if it is determined that the document is a B5 size document, the size of the sheet on which an image is to be formed is A
Since the size is four, an enlargement process is performed as a scaling process on the image of the document. Then, the processed image is formed on the sheet. On the other hand, if it is determined that the document is an A4 size document,
An image of the original is subjected to the same magnification processing to form an image on a sheet. If it is determined that the document is an A3-size document, a reduction process is performed as an equal-magnification process on the image of the document so that an image is not missing when an image is formed. Then, the processed image is formed on the sheet.

Thus, even when the size of the sheet set on the inserter 900 and the size of the original set on the original feeding unit 100 are different, the size of the sheet from the inserter 900 and the size of the sheet on which the image of the original is formed can be obtained. Can be combined and processed as one bundle, and processing desired by the user such as stapling and bookbinding can be performed.
Further, when the user views an output product in which the sheet from the inserter 900 and the sheet on which the image of the document is formed are combined as one bundle, the image of the document is too small to be seen or the image is too large. Therefore, it is possible to prevent a problem that the sheet does not fit in one sheet.

When the inserter 900 is used, settings that must be performed by the user through the operation unit (for example, selection of a paper feed size, setting of a scaling process, etc.)
Erroneous operation (for example, a mistake in inputting the paper feed size) can be prevented, and the operability for the user when using the inserter 900 is improved.

As described above, according to the image forming apparatus according to the embodiment of the present invention, the image forming apparatus main body 1 for forming an image on the image forming paper and the post-processing paper such as the cover are supplied. And a sheet processing apparatus 2 that performs post-processing for binding a book on an image-formed paper sheet on which an image has been formed, and determines the size of the post-processing paper sheet based on the detection result of the paper feed sensor 907. Finisher control unit 50
1, the determination of the document size, the selection of the paper size for image formation at the time of image formation based on the determination result of the paper size for post-processing,
Since the CPU circuit unit 150 determines the magnification at the time of image formation based on the comparison between the image forming paper size and the document size, the following operations and effects are achieved.

In the above configuration, when the sheet for post-processing is supplied in the sheet processing apparatus 2 and bookbinding is performed by the image forming apparatus main body 1 on the image forming sheet on which an image has been formed, the finisher control unit of the sheet processing apparatus 2 is used. Reference numeral 501 denotes the size of the post-processing sheet based on the detection of the sheet for post-processing by the sheet feeding sensor 907, and the determination result is transmitted to the CP of the image forming apparatus main body 1.
The signal is transmitted to the U circuit section 150. The CPU circuit unit 150 performs control for selecting the size of the image forming paper at the time of image formation based on the determination result transmitted from the finisher control unit 501. Further, the CPU circuit unit 150 determines the size of the document to be read, compares the document size with the image forming paper size, and performs control to determine the magnification at the time of image formation.

Therefore, in the embodiment of the present invention,
When performing a bookbinding operation using the inserter 900, the user can automatically determine the paper size without inputting the copy paper size, and perform appropriate image scaling according to the paper size. A bookbinding product according to the paper size set in the paper tray 901 of
There is an effect that it can be generated without performing complicated settings as in the related art. Further, since the image is formed by feeding the paper in the image forming apparatus main body 1 after the supply of the inserter paper is completed, even if a paper feed jam of the inserter paper occurs, the jam processing can be easily completed. This has the effect.

Note that the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. A storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or an apparatus, and a computer (or CPU or MPU) of the system or the apparatus executes the program code stored in the storage medium. Needless to say, this can also be achieved by executing the reading.

In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

When the computer executes the readout program code, not only the functions of the above-described embodiment are realized, but also the OS and the like running on the computer are actually executed based on the instructions of the program code. It goes without saying that a part or all of the above-described processing is performed, and the functions of the above-described embodiments are realized by the processing.

Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instructions of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0139]

As described above, claims 1 to 6,
According to the image forming apparatus of the present invention, the magnification at the time of image formation is determined based on a comparison between the original paper size and the image forming paper size selected based on the post-processing paper size. When performing a bookbinding operation using the paper supply unit, the user automatically determines the size of the image forming paper without inputting the image forming paper size, and appropriately controls the size according to the paper size. This makes it possible to generate a bookbinding product that matches the size of the paper set in the placing unit of the paper supply unit without performing complicated settings as in the related art. is there.

According to the image forming apparatus of the present invention, image formation is performed in the image forming section after the completion of the supply of the post-processing paper in the post-processing section, that is, after the completion of the supply of the post-processing paper. Since the image formation is performed by feeding the image forming paper, there is an effect that the jam processing can be easily completed even if the paper jam of the post-processing paper occurs.

According to the image magnification control method of the present invention, in the image forming apparatus to which the image magnification control method is applied, the image forming apparatus selected based on the post-processing paper size. When performing a bookbinding operation using the paper supply unit, control is performed so that the magnification at the time of image formation is determined based on a comparison between the paper size for the original and the document size. It is possible to appropriately determine the size of the image forming paper, and to perform an appropriate image scaling according to the paper size, and to bind a bookbinding product according to the paper size set in the placing means of the paper supply means. There is an effect that it can be generated without performing complicated settings as in the related art.

According to the image magnification control method of the sixteenth aspect, in the image forming apparatus to which the image magnification control method is applied, after the completion of the supply of the post-processing paper in the post-processing section, the image forming section performs the image formation. Since the image formation is performed by feeding the image forming paper after the completion of the supply of the post-processing paper, the image forming is performed. Therefore, even if the paper jam of the post-processing paper occurs, the jam processing is easily performed. There is an effect that can be completed.

According to the storage medium of the nineteenth aspect, by reading out the image magnification control method from the storage medium and executing it in the image forming apparatus, the image forming paper size selected based on the post-processing paper size can be obtained. When performing a bookbinding operation using a paper supply unit, control is performed so that the magnification at the time of image formation is determined based on a comparison with the document size, so that the image is automatically input without the user inputting the size of the image forming paper. It is possible to determine the size of the sheet for forming and perform appropriate image scaling in accordance with the sheet size, so that a bookbinding product that matches the sheet size set in the placement unit of the sheet supply unit can be used as in the related art. This has the effect that it can be generated without complicated settings.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a control system of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 2 is a configuration diagram illustrating an internal structure of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIGS. 3A and 3B are explanatory diagrams showing an image reading direction and an image forming direction according to the embodiment of the present invention, wherein FIG. 3A is an explanatory diagram showing fixed original reading, and FIG. It is.

FIG. 4 is a block diagram illustrating a configuration centering on an image signal control unit of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 5 is a configuration diagram showing an internal structure of a finisher main body of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 6 is a configuration diagram showing a flow of sheets from an inserter and a printer to a processing tray of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 7 is a configuration diagram showing a flow of sheets from an inserter and a printer to a processing tray of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 8 is a configuration diagram illustrating a flow of sheets from an inserter and a printer to a processing tray of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 9 is a configuration diagram illustrating a flow of sheets from an inserter and a printer to a processing tray of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 10 is a configuration diagram illustrating a flow of sheets from an inserter and a printer to a processing tray of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 11 is a configuration diagram illustrating a flow of sheets from an inserter and a printer to a processing tray of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 12 is an explanatory diagram of image formation in a bookbinding mode in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention, and FIG. 12A illustrates a state of storing original image data on a hard disk; FIG. 2B is an explanatory diagram showing an image forming order, FIG. 2C is an explanatory diagram showing a state in which an image sent to a bookbinding unit is viewed from a conveyance path, and FIG. 2D is a sheet stored in a storage guide of the bookbinding unit. It is explanatory drawing which shows the state.

FIG. 13 is a configuration diagram showing a flow of a sheet from an inserter to a bookbinding unit of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 14 is a configuration diagram illustrating a flow of a sheet from an inserter to a bookbinding unit of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 15 is a configuration diagram illustrating a flow of a sheet from an inserter to a bookbinding unit of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 16 is a configuration diagram illustrating a flow of sheets from an inserter to a bookbinding unit of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 17 is a configuration diagram illustrating a flow of a sheet from an inserter to a bookbinding unit of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 18 is a configuration diagram showing a flow of a sheet from an inserter to a bookbinding unit of an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 19 is a configuration diagram illustrating a flow of a sheet from an inserter to a bookbinding unit of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 20 is a conceptual diagram showing a page configuration at the time of finishing bookbinding in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 21 is a perspective view illustrating a page configuration at the time of bookbinding finishing in an image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 22 is a block diagram illustrating a detailed configuration of a finisher control unit of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 23 is a flowchart illustrating an operation mode processing determination procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 24 is a flowchart illustrating an operation mode processing determination procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 25 is a flowchart illustrating a procedure of a pre-inserter sheet feeding process in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 26 is a flowchart illustrating a pre-inserter sheet feeding processing procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 27 is a flowchart illustrating a non-sort processing procedure in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 28 is a flowchart illustrating a sort processing procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 29 is a flowchart illustrating a staple sort processing procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 30 is a flowchart illustrating a bookbinding process control procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 31 is a flowchart showing a bookbinding process control procedure in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 32 is a flowchart showing an inserter sheet feeding process in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 33 is an explanatory diagram showing a post-processing selection menu of the sheet processing apparatus on the operation unit of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 34 is an explanatory diagram showing a cover designation menu of the sheet processing apparatus on the operation unit of the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 35 is a flowchart illustrating a sheet selection procedure in the image forming apparatus equipped with the sheet processing apparatus according to the embodiment of the present invention.

FIG. 36 is a flowchart illustrating an automatic scaling process in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 37 is a flowchart illustrating an automatic scaling process in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 38 is an explanatory diagram illustrating an example of an automatic scaling process in an image forming apparatus equipped with a sheet processing apparatus according to an embodiment of the present invention.

FIG. 39 is an explanatory diagram showing a configuration example of storage contents of a storage medium storing a program and related data of the present invention.

FIG. 40 is an explanatory diagram showing a conceptual example in which a program and related data of the present invention are supplied from a storage medium to an apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Image forming apparatus main body 2 Sheet processing apparatus 50 Operation part 150 CPU circuit part 300 Printer 500 Finisher main body 501 Finisher control part 900 Inserter 901 Paper tray 907 Feed sensor

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kiyoshi Okamoto 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Mitsushige Murata 3-30-2 Shimomaruko, Ota-ku, Tokyo Within Non Co., Ltd. (72) Inventor Noriyoshi Miyake 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Yasuo Fukatsu 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Riki Sato 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Manabu Yamauchi 3-30-2, Shimomaruko 3-chome, Ota-ku, Tokyo F-term in Canon Inc. Reference) 2H027 DC19 EC01 ED04 ED17 ED21 ED29 EE01 EE07 EF06 FA03 FA23 2H072 AA23 AB17 GA07 3F050 BB02 BD07 BE12 CB07 CE08 LA02 LB03 3F108 GA02 GA04 GB01 HA02 HA32

Claims (21)

[Claims] 1. An image forming apparatus having an image forming section for forming an image on an image forming sheet and a post-processing section for post-processing the post-processing sheet, wherein the image forming apparatus is selected based on the size of the post-processing sheet. An image forming apparatus comprising: an image magnification control unit that determines a magnification at the time of image formation based on a comparison between a size of an image forming sheet and a size of a document to be read. 2. A document size determining means for determining the size of a document to be read, a paper size determining means for determining a size of post-processing paper, and a post-processing paper size determined by the paper size determining means. Paper selection means for selecting an image formation paper size at the time of image formation, wherein the image magnification control means determines the image formation paper size selected by the paper selection means and the document determined by the document size determination means 2. The image forming apparatus according to claim 1, wherein a magnification at the time of image formation is determined based on a comparison with the size. 3. The image forming apparatus according to claim 1, wherein the post-processing unit includes a sheet supply unit that supplies a sheet for post-processing. 4. The image forming apparatus according to claim 1, wherein said paper supply unit includes said paper size determination unit. 5. The sheet supply means has a placement means on which a sheet for post-processing is placed, and the sheet size determination means comprises:
The image forming apparatus according to claim 4, wherein the size of the post-processing sheet placed on the placing unit is determined. 6. The image forming apparatus according to claim 4, wherein the paper size determination unit determines a paper size during conveyance of the post-processing paper. 7. The image forming apparatus according to claim 6, wherein the image forming unit forms an image after the supply of the post-processing sheet is completed. 8. An input means for inputting a size of the post-processing paper, wherein the paper size determining means determines the size of the post-processing paper based on the input of the size of the post-processing paper by the input means. The image forming apparatus according to claim 1, wherein: 9. The post-processing performed by the post-processing unit is a process of supplying a post-processing sheet such as a cover and performing bookbinding by superimposing the image forming sheet on which an image has been formed. Item 9. The image forming apparatus according to any one of Items 1 to 8. 10. An image magnification control method applied to an image forming apparatus having an image forming section for forming an image on an image forming sheet and a post-processing section for post-processing the post-processing sheet, the method comprising: Magnification control step of determining a magnification at the time of image formation based on a comparison between the size of the image forming paper selected based on the size of the paper and the size of the document to be read. . 11. A document size determining step for determining the size of a document to be read, a paper size determining step for determining the size of post-processing paper, and a post-processing paper size determined in the paper size determining step. A paper selecting step of selecting an image forming paper size at the time of image formation based on the image forming paper size selected in the paper selecting step and the document size determined in the document size determining step. 11. The image magnification control method according to claim 10, wherein a magnification at the time of image formation is determined based on a comparison with the size. 12. The image magnification control method according to claim 10, wherein the post-processing unit has a sheet supply step of supplying a sheet for post-processing by a sheet supply unit. 13. The paper supply step includes the paper size determination step.
13. The image magnification control method according to any one of claims 12 to 12. 14. The image magnification control method according to claim 13, wherein in the paper size determination step, the size of the post-processing paper placed on the placement means of the paper supply means is determined. 15. The image magnification control method according to claim 13, wherein in the paper size determination step, the paper size is determined during the conveyance of the post-processing paper. 16. The image forming section according to claim 15, wherein the image forming section forms an image after the supply of the post-processing sheet is completed.
The described image magnification control method. 17. An input step for inputting a size of a post-processing sheet, wherein the sheet size determining step determines the size of the post-processing sheet based on the input of the size of the post-processing sheet in the input step. 17. The image magnification control method according to claim 10, wherein: 18. The post-processing performed by the post-processing unit is a process of supplying a post-processing sheet such as a cover and performing bookbinding by overlapping the image-formed sheet on which an image has been formed. Item 18. An image magnification control method according to any one of Items 10 to 17. 19. A program for executing an image magnification control method applied to an image forming apparatus having an image forming section for forming an image on an image forming sheet and a post-processing section for post-processing the post-processing sheet. A computer-readable storage medium, wherein the image magnification control method includes the steps of: performing image formation based on a comparison between an image forming paper size selected based on a size of a post-processing paper and an original size of an image to be read; A storage medium having an image magnification control step of determining a magnification. 20. An input unit for inputting an image, an image forming unit for forming an image on a sheet based on the image input by the input unit, a first stacking unit for stacking sheets, An image forming apparatus having a second stacking unit for stacking a sheet fed from the first stacking unit and a sheet on which an image is formed by the image forming unit, wherein the sheet stacked by the first stacking unit is An image forming apparatus, comprising: an acquisition unit that acquires the size information of the image data, and performing a scaling process on the image input by the input unit in accordance with the size information acquired by the acquisition unit. 21. A printing apparatus, comprising: selection means for selecting a size of a sheet on which an image is to be formed by the image forming means based on the size information obtained by the obtaining means. 21. The image forming apparatus according to claim 20, wherein the size of the image input by the input unit is compared with the size of the image input by the input unit, and scaling processing is performed on the image input by the input unit.