JPH07288675A - Image forming device - Google Patents

Abstract

PURPOSE:To attain stapling on an upper left part of an image at all times by applying rotation control to image information in response to a direction of received image information. CONSTITUTION:Originals stacked on an original tray of an original feeder 400 are fed to a platen glass sequentially from a final page and are read, and the image of all pages is stored on a hard disk. A size and a direction of each original are sensed by a sensor on the way of carrying originals. Then an image read from the hard disk is copied with rotation by +90 deg., or -90+ or - or without rotation depending whether or not a portrait key and a landscape key are set and whether a sheet longitudinally located or a laterally located is in existence in a cassette of paper feed sections 117, 118 while an original is set longitudinally. Thus, sheets are bundled at upper left corners of the image and a book easy to use is obtained.

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 capable of binding an image-formed sheet.

[0002]

2. Description of the Related Art A conventional stapling copying apparatus can only perform stapling at a predetermined location regardless of the orientation of an image.

[0003]

Therefore, there is a problem in that the stapled sheet is stapled to a position other than the upper left of the image, and the stapled sheet is difficult to turn.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming apparatus which solves the above problems, and in order to achieve this object, an input means for inputting image information, and the input means. The image forming means forms an image on the sheet with the image information from the means, the binding means for binding the image formed on the sheet by the image forming means, and the direction of the image information inputted from the input means. An image forming apparatus comprising: an instructing unit for instructing and a control unit for controlling rotation of image information from the input unit in accordance with an instruction of the instructing unit.

[0005]

【Example】

[Embodiment 1] FIG. 1 is a sectional view showing the structure of a copying apparatus 100 according to an embodiment of the present invention. Here, the operation of the copying apparatus will be described. An original document as shown in FIG.
Document feeder 40 for feeding the document table glass No. 00 to the platen glass 101
A plurality of originals are set on 0, and an arbitrary copy number n is set by the operation unit 200 of the copying machine 100 shown in FIG. Here, reference numeral 401 in FIG. 4 denotes a separate bar, which has a function of separating a copied original document and an uncopied original document. Reference numeral 402 denotes a document set display, which lights up when the document is properly set. Reference numeral 403 is a digitizer for designating an area, 404 is a feeder cover, 405 is a document tray, 406 is a slide guide, and 407 is an auxiliary tray. This document feeder 40
In the case of 0, a sensor for detecting the size of the original is provided on the original conveying path, and the size and direction of the original can be detected.

In addition, 201, 20 of the operation unit 200 of FIG.
Reference numeral 3 is a density key, and 202 is an automatic density key.
Reference numerals 204, 205, and 206 denote variable magnification keys for setting reduction, equal magnification, and enlargement, respectively. Reference numeral 207 is a display, 208 is a * key, 210 is an OK key, and 211 to 214 are cursor keys. Reference numeral 215 is a key for setting and releasing the preheating state. Reference numeral 216 is a copy key, 217 is a stop key, 218 is a clear key, and 219 is a ten-key. Further, 220 in FIG. 2 is a main power switch of the copying apparatus 100. Reference numeral 230 denotes a portrait key that is pressed when a human-readable original is copied in a portrait orientation, and 231 is pressed when a human-readable original is copied in a horizontal orientation. It is a landscape key.

When the operator completes the setting with the operation unit 200, he or she presses the copy button 216 to cause the copying apparatus 100 to start copying. When the copy button is pressed, the document feeder 400 causes the platen glass 101 of FIG.
Documents are fed one by one on top. The manuscript is the platen glass 1
When set on 01, the original irradiation lamp 102 is turned on, and the first mirror base unit including the original irradiation lamp 102 is moved to scan the original. Original irradiation lamp 102
The reflected light of the original illuminated by the reflection mirror 103,
The light is split into three primary colors of Red, Green, and Blue by the diffraction phase grating 107 through the lenses 104 and 105 and the condenser lens 106. The reflected light dispersed here is imaged on each line sensor of the color linear image sensor 108 (CCD) of three lines. The analog output signal of the CCD 108 is converted into a video signal by an analog processor (not shown), and various image processing is performed by an image processor (not shown). The image-processed video signal is sent to an image storage device (not shown) or a laser control device (not shown). The video signal sent to the image storage device is stored in the image storage device, and the video signal sent to the laser control device is converted into a laser control signal. The laser 109 emits light in accordance with the control signal of the laser, and the laser light is irradiated onto the photosensitive drum 113 via the polygon mirror 110 and the reflection mirrors 111 and 112 to form an electrostatic latent image. Further, the electrostatic latent image is developed with a developer of a predetermined color and transferred at a predetermined timing onto the output paper conveyed from the paper feed units 117 and 118 to form an image. The image formed on the output paper is sent to the fixing device 115 by the transport unit 114, is fixed by thermal fixing, and the paper on which the fixing process is performed is discharged from the discharge unit 116. Then, the bins 301 of the sorter 300 as shown in FIG. The sorter 300 has a stapler 303 and a staple start button 302 for stapling the front corner of the paper. Further, the copying apparatus 100 may be equipped with a sorter 308 in addition to the sorter 300. The sorter 308 has a bin 304, a stapler 307, and a staple start button 306.
The staplers 303 and 307 are staple needle tips 309.
Can be folded flat as shown in. That is, since the bending method as shown in 310 is not performed, there is no problem even if the surface on which the staple is bent is the front surface.

Further, the image stored in the image storage device is sent to a laser control device, converted into a laser control signal, which causes the laser 109 to emit light, and is exposed through a polygon mirror 110 and reflection mirrors 111 and 112. It is irradiated onto the drum 113 to form an electrostatic latent image. Further, the electrostatic latent image is developed with a developer of a predetermined color, transferred onto the output paper conveyed at a predetermined timing, and formed as an image. The image formed on the output paper is sent to the fixing device 115 by the conveyance unit 114 and fixed by thermal fixing, and the paper is ejected from the ejection unit 116.

Next, the signal flow of the video processing unit is shown in FIG. The original image formed on the CCD 118 is read by the CCD 108 driven by the CCD driving clock sent from the pulse generator 502, and the Red and Gre images are outputted.
It is converted into an analog electric signal of three primary colors of en and Blue. Further, this signal is sampled at the timing of the S / H clock by the sample / hold (S / H) circuit 503 and converted into a digital signal by the A / D converter 504. The shift correction circuit 505 corrects the shift between the R, G, and B data of each of the R, G, and B signals converted into the video signal by the A / D converter 504. Furthermore, the corrected video signal is 5
A black correction / white correction circuit 06 corrects the black level and the white level of the data.

Next, the video signal subjected to the above image processing is distributed by the selector 507 to the storage device side and the printing device side based on the select signal from the CPU 520. 508 is a video interface, CP
Image data is exchanged between the selector 507 and the hard disk 521 and between the hard disk 521 and the image storage device 509 in accordance with a signal from the U520. The image storage device 509 rotates the image. Reference numeral 510 denotes an image processing unit that performs shadowing and inversion processing on the read original image, and 511 is a printer interface. 51
Reference numeral 2 denotes a printer for outputting the processing result described above, that is, the laser 109 and the photosensitive drum 11 described above.
3 is a printer including a fixing device 115. The hard disk device 521 can store about 100 images.

In this structure, first, the image data for all pages of the original document input from the CCD 108 is input to the selector 507.
The data is stored in the hard disk device 521 via the video interface 508. Image data is read from the hard disk device 521 in order from the last page or from the first page according to an instruction from the CPU 520. This image data is sent to the image storage device 509 via the video interface 508 and is rotated. Further, the image storage device 509 does not perform the rotation process when there is no rotation instruction from the CPU 520. The image data from the image storage device 509 is sent to the selector 507 via the video interface 508.

Next, the image storage device 509 will be described. FIG. 6 is a detailed circuit diagram showing the configuration of the image storage device of the image forming apparatus in this embodiment. In the figure, 1
001 is a connector, 1002 is a selector, 1003 is a memory, 1004, 1005, 1008 are inverters, 1006, 1007 are 13-bit counters, 10
Reference numerals 09, 1010, 1011 and 1012 denote tristate buffers and 1013 denotes a communication control unit. 1017 is
A CPU that controls the entire image storage device.
Indicates a ROM storing various programs for operating the CPU 1017, and 1015 indicates that the CPU 1017 reads R
A RAM as a work area used when executing various programs of the OM 1014 is shown, and 1016 is an output port. 2001R, 2001G, 2001B,
2007R, 2007G, 2007B, 2019R, 2
Reference numerals 019G, 2019B, 2012 to 2017 denote signal lines, and 2002 denotes an ITOP signal, 200
3 is an EN signal, 2004 is a video clock (VCL
K), 2005 is a communication signal (COM), 2006 is a select signal, 2008 is an ITOP signal, 2009 is an EN signal, 2010 is a control signal, and 2018 is a bus line for transmitting an address signal, data and a control signal.

Next, the operation of the above configuration will be described. The connector 1001 is the video interface 50 of FIG.
8 is connected via a cable. R data, G
Data and B data are input to the signal lines 2001R, 2001G, and 2001B via the connector 1001, respectively. Similarly, the control signal and the signal that is the communication signal are also transmitted via the connector 1001 to the signal line 2002.
To 2005. Signal lines 2001R and 2001
Image signal passing through G, 2001B (hereinafter referred to as "2001R
"", "2001G '", "2001B'")
Are input to the selector 1002. When storing images,
The selector 1002 is set to the side A in the figure by the select signal 2006, and the input image signal 2001R ′, 2
001G 'and 2001B' (collectively referred to as "image information 2001") are signal lines 2007R and 2007.
It is input to the memory 1003 through G, 2007B. The ITOP signal 2002 is inverted by the inverter 1004, and a counter 1006 is output as an ITOP signal 2008.
It is input to the clear terminal of. The EN signal 2003 is inverted by the inverter 1005 and input as an EN signal 2009 to the clock input terminal of the counter 1006 and the clear terminal of the counter 1007. Furthermore, VC
LK is input to the clock input terminal of the counter 1007.

Next, the storage method in the memory 1003 will be described.
The case where the original is A4 size will be described in detail as an example. Figure 7
On the platen glass 101 is an A4 size document 999.
FIG. 3 is a view seen from below the original platen glass 101 in an example in which is mounted. That is, the reference mark M is on the left rear side of the platen glass 101. The control signal from the video processing unit is also added to the figure. This color reader reads the original 999 at 16 dots / mm and converts it into digital information. Then, after all pages of the original are stored in the hard disk device 521, they are sent to the image storage device 509 (FIG. 6) in order from the last page or the first page.
If the original 999 is set according to the reference mark M,
In terms of directionality, the horizontal (H) direction of the document, that is, the main scanning direction corresponds to addresses 0 to 4752 as shown in the figure, and the vertical (V) direction, that is, the sub-scanning direction, corresponds to address 0 to 336.
Corresponds to address 0. The above control signal (EN203, VC
LK2004, ITOP2002) are generated at the timings shown in FIG. 7 and are sent to the image storage device 509.

FIG. 8 is a timing chart of signals in the image storage device 509 corresponding to the control signal and the image signal from the video interface 508 of the video processing unit shown in FIG. 5 in this embodiment. 6 is a timing chart for storing an image signal input from a signal line 2001 in a memory 1003. ITOP signal 200
When 8 is a logical "0", the counter 1006 is cleared and the counter outputs 2013 are all a logical "0". At this time, the EN signal 2009 is “0”, the counter 1007 is cleared, and the signal line 201
The counter outputs output to 2 are all "0".
When the ITOP signal changes from "0" to "1", the effective image information 2001 of the document is output and EN
The signal 2009 changes from "0" to "1". Further, the VCLK 2004 is constantly output from the connector 1001. When the EN signal 2009 becomes "1", the counter 1
Clear of 007 is released, and the value counted up in synchronization with VCLK 2004 is output to the signal line 2012. After the signal level of the EN signal 2009 changes from “0” to “1”, the VCLK 2004 becomes 4752.
When the time corresponding to the number of pieces has passed, it changes to "0" again. The output of the counter 1007 is the EN signal 20 described above.
The value of 0 to 4752 is taken by the control of 09.

The counter 1006 is used for the IT as described above.
After being cleared by the OP signal 2008, the EN signal 20
One is incremented every time 09 changes from "0" to "1". That is, the counter 1007 outputs the address in the H direction, and the counter 1006 outputs the address in the V direction (row).
Is output. The output of the counter 1007 is connected to the tristate buffers 1010 and 1 through the signal line 2012.
011 is input. Further, the output of the counter 1006 is output via the signal line 2013 to the tristate buffer 1
009 and 1012. When image information is input to the memory 1003 via the signal lines 2007R, G, and B, the control signal 201 from the output port 1016 is input.
0, tristate buffers 1009 and 1010
And are controlled to be effective. That is, counter 1
The output of 007 is input to A0 to A12 of the memory 1003 through the signal line 2012, the tristate buffer 1010, and further through the signal line 2014. The output of the counter 1006 is input to A13 to A25 of the memory 1003 via the signal line 2013, the tristate buffer 1009, and the signal line 2016. In other words, the memory 1003 has 26-bit addresses A0 to A25, and A0 to A12 and A13 to
A25 is controlled by the outputs from the separate counters 1006 and 1007. In this way, the input image data is stored in the memory 1003 from line 0 to 3360.
Write up to the line.

FIG. 9 shows a memory 100 according to this embodiment.
3 shows an address space of 3. As shown in FIG. 6, the outputs of the counters 1006 and 1007 each have 13 bits, which are respectively addresses A0 to A of the memory 1003.
12, A13 to A25. That is, 2 ¹³
= 8192 addresses can be specified, addresses 0 to 8191 in the H direction and lines 0 to 819 in the V direction.
You can specify the address up to one line. Then, the image information 2 is stored in the memory space shown in FIG. 9 at the timing shown in FIG.
When 001 is input, the exclusive area is indicated by the shaded area in FIG. Note that here, the original 99 of FIG.
Image information 2001 is stored in the memory 1003 in correspondence with the address of 9, that is, A4 size image information is stored in the memory 1003, but when the orientation of the output paper and the original is the same, the image information It is also possible to output directly from the color reader to the color printer without storing it in the memory 1003. Further, by having the configuration as shown in FIG. 5, it is possible to simultaneously read and output.

Next, a reading method for performing 90 ° rotation will be described. First, prior to the 90 ° rotation, the image information is transmitted from the image storage device 509 to the video processing unit by the video interface 508 of the color reader. Also, the CPU 1017 of the image storage device 509
Controls the output port 1016 to set the selector 1002 to the B side, and sets the tristate buffers 1009 and 1010 among the tristate buffers 1009 to 1012 to the high impedance state.
The control unit in the color reader obtains the type information of the paper set in the paper feed cassette 117 (FIG. 1) of the printer via the cable. In this embodiment, A4R paper is set on the upper side in FIG. 1, and from this information, the video processing unit in the color reader, when forming an image, the EN signal, VCLK,
Output the ITOP signal. The ITOP signal is turned on when the timing roller in front of the photoconductor is turned on and the paper is fed. VCLK is continuously output at a frequency corresponding to one pixel of the laser. The recording density is 16d
Since it is ot / mm, the VCLK number in the laser scanning direction is 210 mm × 16 dot / mm = 336.
It becomes 0 dot, and is logical "0" while the EN signal is also input for 3360 clocks. A control signal output from the video processing unit and input to the image storage device 509 is input to counters 1006 and 1007. EN
The signal is input to the clock input terminal of the counter 1006 and the clear terminal of the counter 1007. Then, the VCLK signal is input to the clock input terminal of the counter 1007, and the ITOP signal is input to the counter 10.
It is input to the clear terminal of 06.

FIG. 11 is a timing chart of control signals in the image forming apparatus according to this embodiment. When the EN signal 2009 shown in the figure is logic "0", the counter 10
07 is cleared, and all counter outputs output to the signal line 2012 are logic "0". Also, ITOP signal 2
When 008 is a logic “0”, the counter 1006 is cleared and all counter outputs output to the signal line 2013 are logic “0”. Counter 1007 is EN signal 2
When VCLK 2004 is input after 009 becomes logic “1”, the output counted up one by one is output to the signal line 2012. Then, the counter output output to the signal line 2012 is input to the address terminals A13 to A25 of the memory 1003 via the enabled tri-state buffer 1011. Counter 10
In 06, when the EN signal 2009 is input after the ITOP signal 2008 becomes logic “1”, the output counted up by one is input to the signal line 2016. Then, the output of the counter 1006 is sent to the memory 100 via the enabled tri-state buffer 1012.
3 are input to address terminals A0 to A13.

In this way, the terminals A0 to A12 of the memory are
The signal of the counter 1006 is input to the memory, and the output signal of the counter 1007 is input to the terminals A13 to A25 of the memory. That is, the outputs of the counters 1006 and 1007 at the time of image storage are exchanged. Indicates. In reading the image information shown in FIG. 9, since the outputs of the counters are exchanged, the information in the V direction in FIG. 9 is read first, and the output of the counter 1006 in the H direction counts up every time one line is read. Then, the process of reading the next one line in the V direction is performed. The state of this processing is shown in FIG. In the figure, the memory output, that is, the signal output to the signal lines 2019R, G, B is H
At the 0th address in the direction 0, the data of 0th to 3360th lines in the V direction are read out, and then the V at the 1st address in the H direction is read.
This is data obtained by reading lines 0 to 3360 in the direction. Then, by repeating this process up to the address 4752, the image information that was an A4 size original can be rotated by 90 ° and read from the memory 1003 in the A4R format. Further, as shown in FIG. 12, the memory output, that is, the signal output to the signal lines 2019R, G, and B, at the address 4752 in the H direction, is in the direction of the 3350th row to the 0th row opposite to the V direction. Read the data, and then, at address 4751 in the H direction, the reverse 33 in the V direction.
By reading the 60th to 0th lines, the image information of the A4 size original is read by 90% in the opposite direction to the direction shown in FIG.
It can also be read from the memory 1003 in A4R format after being rotated by 90 °, that is, rotated by −90 °. If they do not rotate, they may be read in the order in which they were written in the memory 1003. These controls are performed by the CPU 1017, and the CPU 1017
Are controlled by the CPU 520.

Next, the outline of this embodiment will be described. FIG.
Is an example of staple sorting. 13A shows the orientation of the original set on the original feeding apparatus 400, and FIG.
Is the orientation of a stapled sheet which is a normal copy, that is, a copy is made without image rotation. The position to be stapled is the upper left position with respect to the image on the paper as in the copy B. FIG. 14 shows an example in which the read original image is rotated 90 °, copied, and stapled. The original is a1 which is rotated by + 90 ° and copied and stapled, and b2 is an original which is rotated by −90 ° and copied and stapled. As shown in the figure +
Rotating in the direction rotates in the counterclockwise direction, and rotating in the-direction rotates in the clockwise direction. The rotation method is as described above.

[Second Embodiment] Next, a second embodiment will be described. First, as shown in FIG. 16, the recording paper fixed by the fixing device 1601 is conveyed by the flapper 1602 to the lower conveying portion of the copying apparatus. At this time, the recording paper advances in the direction of arrow 1604, and a timing for reversing the transport direction is measured by a timer from the time when the leading edge of the recording paper passes the sensor 1607. Here, when the timer counts a predetermined time, the lower conveyance roller 1608 is rotated in the reverse direction,
As indicated by arrows 1605 and 1606, the recording paper is sent to the paper output unit and is output by the paper output roller 1609. The front and back states of paper feeding at this time are as shown in FIG. FIG. 17A shows the state of the recording paper after passing through the fixing device 1601. When the recording paper is conveyed as indicated by the arrow 1603, the state shown in FIG. As a result, as shown in FIG. 17B, the recording paper is reversed on the back side and discharged. An output example is shown in FIG. Here, a2 is the orientation of the document to be set, and b
The back side of 3 is a state in which the image can be obtained by rotating the image by 90 ° and further inverting it. This allows stapling to the upper left of the recording paper. The back of b4 is a state in which the image can be obtained by rotating the image by -90 ° and further reversing it.
The appearance of each of them is also shown in Tables b3 and b4 in FIG. FIG. 17 shows the relationship between the image rotation and the rotation of the back side sheet discharge and the stapling position described above.

[Third Embodiment] Next, a third embodiment will be described. As shown in FIG. 18, when the document 1805 is set in the document feeder and the image is rotated by −90 ° and outputted,
As shown by 1806, by selecting the stapler on the back side with a sorter having the stapler on the back side and the front side, the upper left side of the recording paper can be stapled. Also, the image is 90 °
When the sheet is rotated to eject the back surface, as shown by 1807, the upper left of the recording sheet can be stapled by selecting the front stapler. Where 1801
Reference numeral 1802 denotes a staple supply indicator that lights up without staples, reference numeral 1802 denotes a manual staple key for instructing a manual staple, 1803 denotes a staple portion cover, and 1
804 is a sort bin. In this embodiment, a plurality of stapling means are provided, and the same effect is provided by switching the stapling position according to the output method.

When the original is in the R direction (the longitudinal direction of the original is the conveying direction) by the original feeding device, the recording paper may be reversed so that the upper left corner of the recording paper is stapled. Instead of reversing the paper, the stapler at the back and the stapler at the front may be separately used and stapled at the upper left of the recording paper.

Next, in order to make it easier to turn over the copied and stapled sheets, the control for automatically stapling the upper left corner of the copied image is shown in FIGS.
Will be explained. 23 is a control flowchart thereof, and FIGS. 20 to 22 are diagrams showing the control state thereof. First, the originals stacked on the original tray 405 of the original feeding device 400 are fed to the original platen glass 101 in order from the last page to read the originals, all pages of the originals are stored in the hard disk 521, and the originals are being fed. Detects the size and orientation of the document with a sensor, and determines whether the document is parallel to the feeding direction and the side of the document is shorter than the side perpendicular to the feeding direction, that is, whether the document is placed vertically. (Step S1).
When it is determined in step S1 that the document is placed vertically, it is determined whether the portrait key 230 is pressed and set (step S2). If it is determined in step S2 that the portrait key 230 has been pressed and set,
It is determined whether or not there are vertically placed sheets in the cassettes of the sheet feeding units 117 and 118 (step S3). If it is determined in step S3 that there is a vertically placed sheet, the image data is read from the hard disk device 521 sequentially from the last page, and the image of the original is copied to the vertically placed sheet without rotating the image (step S4). After the copying of the original document is completed, the copied sheet is stapled (step S5). This state is shown in FIG.

If it is determined in step S3 that there is no vertically placed sheet, it is determined whether or not there is a horizontally placed sheet in the cassette of the sheet feeding units 117 and 118 (step S6). If it is determined in step S6 that there is a horizontal sheet, the image data is sequentially read from the hard disk device 521 from the first page, the original image is rotated by + 90 ° and copied to the horizontal sheet (step S7). Is reversed (step S8), and the process proceeds to step S5. This state is shown in FIG.

If it is determined in step S6 that there is no horizontal sheet, the process proceeds to step S3.

When it is determined in step S2 that the portrait key 230 is not pressed, it is determined whether the landscape key 231 is pressed and set (step S9), and in step S9 the landscape key 23 is pressed.
If it is determined that 1 has been pressed and set, it is determined whether there is a horizontal sheet in the cassette (step S
10). If it is determined in step S10 that there is a horizontal sheet, the image data is sequentially read from the last page, the original image is rotated by −90 ° and copied to the horizontal sheet (step S11), and the process proceeds to step S5. This state is shown in FIG.

When it is determined in step S10 that there is no horizontally placed sheet, it is determined whether there is a vertically placed sheet in the cassette (step S12). If it is determined in step S12 that there is a vertically placed sheet, the image data is sequentially read from the first page, a copy is made on the vertically placed sheet without rotating the image (step S13), and the front and back of the sheet are reversed (step S14). ), And proceeds to step S5. This state is shown in FIG.

If it is determined in step S12 that there is no vertically placed sheet, the process proceeds to step S10.

When it is determined in step S1 that the document is not placed vertically, that is, when the document is placed horizontally, it is determined whether there is a sheet placed horizontally in the cassette (step S15). If it is determined in step S15 that there is a horizontal sheet, the image data is sequentially read from the last page, the image of the document is copied to the horizontal sheet without rotating the image (step S16), and step S5.
Go to. This state is shown in FIG.

When it is determined in step S15 that there is no horizontally placed sheet, it is determined whether there is a vertically placed sheet in the cassette (step S17). If it is determined in step S17 that there is a vertically placed sheet, the image data is sequentially read from the first page, the original image is rotated by + 90 °, and a copy is made on the vertically placed sheet (step S18), and the front and back of the sheet are reversed. (Step S19), Step S5
Go to. This state is shown in FIG.

If it is determined in step S17 that there is no vertically placed sheet, the process proceeds to step S15.

If the front and back of the sheet are not reversed, the hard disk drive 521 does not have to be stored.

[0035]

As described above, the sheets can be bound by binding to the upper left of the image. Therefore, it is possible to make a booklet that is easy to use in actual use.

[Brief description of drawings]

FIG. 1 is a sectional view of a copying machine according to each embodiment of the present invention.

FIG. 2 is a diagram showing an operation unit of the copying apparatus.

FIG. 3 is a diagram showing a staple sorter.

FIG. 4 is a diagram showing a document feeding device.

FIG. 5 is a block diagram of a copying apparatus.

FIG. 6 is a diagram showing a configuration of an image storage device.

FIG. 7 is a diagram showing a relationship between a document on a platen glass and a drive signal of a memory.

FIG. 8 is a diagram showing an example of a relationship between drive signals of a memory.

FIG. 9 is a diagram showing a relationship between a memory space and a document.

FIG. 10 is a diagram showing a relationship between image information on a memory and a signal for reading.

FIG. 11 is a diagram showing an example of a relationship between drive signals of a memory.

FIG. 12 is a diagram showing an example of a relationship between drive signals of a memory.

FIG. 13 is a diagram showing a relationship between a read document in a normal copy and a staple position of a sheet after copying.

FIG. 14 is a diagram showing an example of an output image by rotation control.

FIG. 15 is a diagram illustrating an example of an output image by rear surface paper ejection.

FIG. 16 is a diagram of a back surface paper ejection mechanism.

FIG. 17 is a diagram illustrating an operation of rear surface paper ejection.

FIG. 18 is a diagram illustrating an example of an output image by reverse-side sheet ejection and image rotation.

FIG. 19 is a diagram showing an output image and its means by rear surface paper ejection and image rotation.

FIG. 20 is a diagram illustrating a control state by the copying apparatus.

FIG. 21 is a diagram illustrating a control state by the copying apparatus.

FIG. 22 is a diagram illustrating a control state by the copying apparatus.

FIG. 23 is a control flowchart of the copying apparatus.

[Explanation of symbols]

1003 memory 1006, 1007 counter 1009, 1010, 1011, 1012 tri-state buffer 1017 CPU

Front Page Continuation (72) Inventor Shoji Miyake 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (4)

[Claims] 1. An input unit for inputting image information, an image forming unit for forming an image of the image information from the input unit on a sheet, and binding at a predetermined position of the sheet image-formed by the image forming unit. A binding means, an instruction means for instructing a direction of the image information input from the input means, and a control means for controlling rotation of the image information from the input means according to an instruction of the instruction means. Image forming apparatus. 2. The detecting means for detecting the orientation of the sheet on which the image forming means forms an image, and the reversing means for reversing the front and back of the sheet on which the image is formed by the image forming means, and the instructing means. When the direction of the instructed image information and the direction of the sheet detected by the detection unit are different and the longitudinal direction of the image information is the main scanning direction, the control unit adds the image information +
The image forming apparatus according to claim 1, wherein the sheet is rotated by 90 ° and the reversing unit reverses the sheet. 3. The orientation of the image information instructed by the instructing means and the orientation of the sheet detected by the detecting means are different,
3. The image forming apparatus according to claim 2, wherein when the longitudinal direction of the image information is the sub-scanning direction, the control unit rotates the image information by −90 ° and the reversing unit reverses the sheet. 4. The image forming apparatus according to claim 1, wherein the binding means is a stapler.