JPH0828788B2 - Image forming device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an image forming apparatus for forming image information read from a storage medium on a recording material and stapling the recording material.

[Prior Art] In recent years, a device has been considered in which a large amount of image information is stored in a file device such as an optical disk, and a desired file is read and printed. When a paper binding device is connected to such a device to perform a paper binding operation, if the tip of the needle is on the first page (cover side), the first page is likely to be damaged. However, providing a plurality of binding devices in different directions increases the cost.

[Object] The present invention has been made in view of the above points, and it is an object of the present invention to provide an image forming apparatus capable of reducing damage to a recording material when the recording material is stapled, regardless of the operating direction of the stapling means. It is intended.

That is, according to the present invention, in an image forming apparatus that reads desired image information from a storage medium storing a plurality of image information and forms an image on a recording material, an input unit for inputting information for designating the desired image information. Reading means for reading desired image information from the storage medium based on the information inputted from the input means, and image forming means for forming the image information read by the reading means on a recording material. The stapling means for stapling a plurality of recording materials imaged by the image forming means, and the operation direction of the stapling means on the front and back of the recording material are recognized, and the image information to be read from the storage medium is read according to the recognition result. An image forming apparatus having a control unit that controls the reading unit so as to change the page order.

〔Example〕

First, an outline of the control system of the device according to the present invention will be described with reference to FIG. Reference numeral 10 denotes a document reading device, which reads a document to be read by a reading unit, the details of which will be described later. Reference numeral 12 denotes a magneto-optical disk device, which filters the image information read by the document reading device 10 and transfers desired image information to the recording device 14 as necessary. The magneto-optical disk is not limited to this, and for example, an optical disk, a magnetic disk, a floppy disk, or the like can have the same role.
A recording device 14 forms the image information transferred from the reading device 10 or the magneto-optical disc device 12 on the recording paper, and forms a latent image on the photoconductor by the modulation signal of the laser light. Reference numeral 1 is an electronic file device main body, and 22 is a control bus through which each terminal and each device in the electronic file 1 are controlled. For example, various devices in the recording device 14 are provided in the recording device 14. It is connected to a control unit (not shown) that controls the apparatus. A data bus 24 is used for data transfer between each terminal and each unit in the electronic file device body 1. 30 is DMAC (Direct M
emory Accass Controller), which transfers data between each terminal and each device in the electronic file device body 1 via the data bus 24. Reference numeral 26 denotes a control circuit of the electronic file device 1, which performs data transfer and control between each terminal and each device in the electronic file device 1. Reference numeral 28 denotes a page memory, specifically, a dynamic RAM. The image information read by the document reading device 10 is temporarily stored here, and is then stored in the magneto-optical disk device 12 via the data bus 24. Written in.
When recording on the recording paper by the recording device 14,
The image information called from the magneto-optical disk 12 is temporarily stored in the page memory 28 via the data bus 24 and is recorded by the recording device.
Transferred to 14. Reference numeral 32 denotes a memory in which information such as an address in which a document filed on the magneto-optical disk is written is written.

Reference numeral 16 is a paper folding device, 18 is a paper binding device corresponding to the stapling means of the present invention, and 20 is a punching device, which are peripheral devices of the recording device 14, respectively, and are transmitted from the recording device 14 by a signal from the control bus 22. Paper processing is performed on the discharged recording sheets.

Further, various input signals are input to the control circuit 26. For example, 34 is a print command signal 36, which is a signal for instructing whether to record image information on one side or both sides of a sheet. For these, various command signals explained at the time of reading a document and at the time of recording commands are given. Input here.

1. Disk Device FIG. 2 shows an embodiment of an optical system of a magneto-optical recording / reproducing device as an optical information storage device according to the present invention. In FIG. 2, 40 is a semiconductor laser as a light beam generation source, 42 is a collimator lens, 44 is a knitting photon, 46 is a knitting beam splitter having a knitting film, 48 is a total reflection mirror for changing the optical path, 50 Is a known galvanometer mirror type tracking mirror for tracking, and is provided so as to be rotatable in the direction of arrow C in the figure. Reference numeral 54 is a magnetic coil used for recording and erasing information signals, and 66 is a disk having a recording medium 68 such as a ferromagnetic thin film layer on the surface rotatable about a rotation axis 70 in the direction of the arrow shown in the drawing. Magneto-optical disk,
56 is a λ / 4 plate used only for recording (moved out of the optical path at the time of reproducing information and erasing information), 72 is an analyzer, 58 is a condenser lens, 60 is a cylindrical lens, and 62 is divided into four. In the light receiving element,
This is for detecting whether or not tracking and focus are correctly performed based on the received signal, and for obtaining a reproduction information signal during reproduction. Reference numeral 52 is an objective lens barrel including an objective lens movable in the optical axis direction, and 64 is a magneto-optical disk by moving the objective lens barrel 52 in the optical axis direction.
It is an objective lens driving device for focusing a light beam on a recording medium 68 of 66 and repeatedly defocusing the light beam at a high frequency at the time of erasing.

Since the method of recording, reproducing and erasing information is a well-known technique, the description thereof is omitted here.

2. Document Reading Device Next, the document reading device 10 (hereinafter referred to as a reader) will be described with reference to FIGS. 3 (1) and 3 (2).

FIG. 3 (1) is a sectional view of the reader and the printer,
FIG. 3B is a sectional view of the configuration of the reading unit 10-2 of the reader 10. Pressed by the document cover 110 (or RF),
An image pickup element 103 such as a CCD in which a plurality of light receiving elements are arranged in a line is used to read image information of a document 102 placed on a platen 101 made of a glass plate or the like. light source
The illumination light from 104 is reflected on the surface of the original 102 and the mirror 10
An image is formed on the image sensor 103 by the lens 108 via 5, 106 and 107. The light source 104, the mirror 105, and the mirror 106.107 reciprocate on the rail 110 at a relative speed of 2: 1 to scan the entire area of the original. Mirror 105,106,107
The light source unit including the light source 104 and the light source 104 is a DC servo motor 109.
It moves at a constant speed while applying PLL control.
This moving speed is variable from 90 mm / sec to 360 mm / sec depending on the reading magnification on the outward path from left to right in the figure, and is always 630 mm / sec on the return path from right to left.

The moving direction of this optical unit is called the sub-scanning direction, and the direction substantially orthogonal to this sub-scanning direction is called the main scanning direction. The light receiving elements of the image sensor 103 are arranged in the main scanning direction, and while the main scanning lines are read by the image sensor 103 at a resolution of 400 dots / inch, the optical unit is moved from the left end to the right end, and then again. It returns to the left end and completes one scan. The image read by the image sensor CCD is serially stored in the page memory 28 as a digital signal of 1 or 0 indicating the image density, but the read information can be compressed by a compression circuit (not shown). The movement at the time of reading the original will be described with reference to FIG. An operator places one or a plurality of double-sided originals 102 upward on an original placing table 111 of an original feeding unit 10-1 (hereinafter referred to as RDF) of the reader 10. Reader 10
When the operator presses the start key of the operation section of the RDF 10-1
The RDF 10-1 separates the lowermost original from the original placing table 111 by the separating belt 112, and further conveys it to the conveying roller 113.
Platen 1 by the transport belt 114 through the transport unit via
Carry on 01. In this state, the first side of the original is read. After that, the transport belt 114 rotates in the reverse direction, and the document transported on the platen 101 is transported to the transport roller 118 by the deflection cam 115. The conveyance roller 118 stops once when a sensor (not shown) detects that the trailing edge of the document has passed the deflection cam 116. After that, the transport roller 118 rotates in the opposite direction to the previous direction, and the original is sent to the transport roller 120 by the deflection cam 116. The transport roller 120 is
The same reversal as the conveyance roller 118 is performed, and the original is sent again to the conveyance belt 114 by the deflection cam 117. Through the above operation, the original is inverted and placed on the platen 101.
Then, the second side of the document is read. Then, the transport belt 114 is rotated in the reverse direction again, and the original is moved and discharged toward the transport rollers 120 and 119 by the deflection cam 115. The original is supplied to a platen 101 by a timing pulse generator (not shown) attached so as to generate a pulse in synchronization with a paper detection sensor (not shown, but including 121) attached to the paper path and a roller drive system. It is well known that the control is performed so as to stop accurately. When the scanning of one document is completed, the transport roller 114 and the deflection cam 115
Thus, the original is sent toward the conveying rollers 120 and 119. Then, the document is ejected by the conveyance roller 119 and the original document on the document table 111 is
Stacked on top of 102. A short bar (not shown) is placed on the original 102 at the start of copying, so that the end of one set of originals can be detected. Further, the reader repeats the above operation until the end of the set of originals placed on the original placing table 111.

Next, the operation unit of the reader 10 will be described with reference to FIG.

The input 150 of the number of the read document is a ten-key pad, and the number of the read document is input by this ten-key, and the input number is displayed on the display unit 152. If there is an error in the entered number, the clear key 154 is pressed and the numeric keypad 150 is used to re-enter the number.

Specifying the binding direction of the scanned document Specify the binding direction of the scanned document. Press the left binding switch 156 for a left binding document and the right binding switch 158 for a right binding document. If the position of the document image is in the center of the document and it is not necessary to specify left binding and right binding, the switch need not be pressed.

Specify both-sided / single-sided originals Specify whether the originals to be scanned are double-sided or single-sided. Press the switch 160 for a double-sided original, or the single-sided switch 162 for a single-sided original. By this designation, the document feeding operation in the document reading device is controlled. Double-sided switch
Below the 160 and the single-sided switch 162 is a correction switch 164. The correction switch 164 is used when the document reading switch 166 described later is pressed, for example, the double-sided switch 160 is pressed and then the single-sided switch 162 is switched, or vice versa. The reason for permitting mode switching from both sides to one side during document reading is that there is no problem in the correspondence between the recording address of the read document image and the page. That is, the number of originals, the image recording address, and the reading order of the originals do not change even if the correction key is pressed.
The only difference is that the calculation for determining the relationship between the recording address of the read original image on the magneto-optical disk and the page differs depending on whether the original is a double-sided original or a single-sided original.

Specifying the binding margin amount When recording a document image on a recording sheet and binding or punching paper as needed, if you want to create the binding margin in advance and create it on the file image on the magneto-optical disk. , Press the binding margin switch 168, and enter a numerical value with the numeric keypad 150. In this embodiment, since the left binding is plus, when the right binding is desired, the minus key 170 is pressed to input the numerical value.

Original scanning switch After issuing the above commands, the original scanning switch
Press 166 to start scanning the original.

The document reading device and the reading order are not limited to the above-described configuration, and the sheet feeding unit and the sheet discharging unit may be different.

3. Recording Device The recording device (printer) 14 will be described with reference to FIG.

When the printer 14 is instructed to start by communication from the reader 10 or the disk device 12, the printer 14 starts rotating each part of the printer and starts driving various high voltage parts. When the predetermined preparatory operation is completed, a paper feed start signal from the reader 10 or the disk device 12 starts the feeding of the recording paper from the designated stage (either the upper cassette 202, the lower stage 203, or the paper deck 204). When the recording paper reaches the registration roller 205, the recording paper is temporarily stopped, and a latent image is formed on the photosensitive drum 200 by the laser light modulated based on the image signal from the reader 10 or the disk device 12 generated from the laser generator 201. Refeed the paper in a timely manner.

The electrophotographic technique, which is a well-known technique, develops a latent image on the drum 200, transfers the developed image onto recording paper fed from a designated stage, and conveys the recording paper to a fixing unit 207 by a fixing unit 207. Let it pass. As a result, an image is recorded on the first surface of the recording paper. Then, it is conveyed to the double-sided unit 14-1 side by the deflection cam 208. Double-sided unit 14-1
Is for reversing the recording sheet through the conveying path 212 in the case of double-sided recording and for guiding it to the photosensitive drum 200 again without being reversed through the conveying path 25 by the deflection cam 211 in the case of multiplex recording. The recording paper entered is transported by the transport roller 21.
3 or 216 is loaded on the intermediate tray 214. The required number of sheets of recording paper with the image recorded on the first side are in the intermediate tray 21.
When the sheets are stacked on the sheet 4, the sheet is started to be conveyed one by one from the intermediate tray 214 by the conveying roller 213 according to the second surface copy start instruction from the reader 10 or the disk device 12, and reaches the registration roller 205 through the conveying roller 217. . Then, the image formed on the drum 200 is transferred in the same manner as on the first surface, passes through the fixing device 207, the deflection cam 208, the conveyance rollers 209 and 210, and the paper folding device 16, the paper binding device 18, and the punching device 20 described later. It is discharged to the sorter 13. As a result, images are recorded on both sides or one side of the recording paper. Although the above-mentioned command signal has been described as being output from the reader 10 or the disk device 12, the command from the control circuit 26 may of course be used. Further, since the sorter 13 notifies the operation mode (one of the three modes of sorting, grouping, and non-sorting) at the start of the recording operation by communication, the sorter uses a sensor (not shown) attached to the conveyance roller 210 to print the paper. When detected, the operation is performed according to the specified operation mode. For example, in the sort mode, when one recording sheet is discharged to the bin, the bin is shifted up by one bin and the next recording sheet is guided to the next bin. (This sorter is designed so that the bin moves to the upper stage for collation.)
If the manuscript changes in group mode, it will bin up,
In the non-sort mode, the paper is always ejected to the upper bin again.

As described above, the double-sided copy operation is performed by the operation described above. The one-sided copy can be executed by omitting the inversion operations of the RDF and the double-sided unit 14-1 in the above description, and thus the detailed description will be omitted. If a path for re-feeding the recording paper without reversing the recording paper is provided in the double-sided unit, a plurality of images can be recorded on the same surface of the recording paper in an overlapping manner.

Next, the control of the direction and the position of the image paper formed on the recording sheet by the processing of the image information signal will be described. First, the direction of the image portion formed on the recording sheet will be described. FIG. 5 (a) is a front view of the document. The erect image and the inverted image referred to here are the images shown in FIG. 5 (b) when the operator looks at the recording sheet recorded by the recording device 14.
When the image portion is formed in the direction of, the image is called an erect image, and when the image portion is formed in the direction of FIG. 5C, the image is called an inverted image. In this way, the image information can be switched in one or more DRAM (Dynamatic Ra
Page memory composed of ndom access memory)
It can be realized by temporarily storing in 28 and controlling the read start position and the read direction.

FIG. 6 shows a DRAM which is the page memory 28.
1 is a memory cell, 282 is a row address, 283 is a column address, 284 is a data output line, 285 is a data input line, 286
Is a write enable signal. Data is stored in 281 memory cells, with row address 282 and column address 283.
One bit is stored for each point in the matrix designated by. When the document image information as shown in FIG. 5A is stored in the page memory, the write start address is set from the point A, and the photosensitive drum 200 is exposed and scanned by the laser beam to form toner on the recording sheet. When the image is transferred, an upright image is obtained as shown in FIG. 5 (b), and an inverted image is obtained as shown in FIG. 7 (c) when the writing start position is point B.

Next, to change the position of the image part with respect to the recording sheet,
This is achieved by changing the relative position between the front end of the recording sheet and the front end of the toner image corresponding to the latent image formed on the photosensitive drum 200 in the transfer section. Specifically, the timing of feeding the recording sheet by the registration rollers 205 may be changed, or the timing of the exposure scanning by the laser light may be changed.

4. Paper Processing Device Next, the binding device 18, the paper folding device 16, and the punching device 20 will be described with reference to FIGS. 7, 8, and 9, respectively.
These paper processing apparatuses are connected to the main body of the recording apparatus, and their control is performed by the control 22. Further, the connection of these paper processing apparatuses to the recording apparatus main body is not necessarily required, and they are detached from the recording apparatus as needed.

(A) Paper binding device FIG. 7 is a diagram showing a configuration of a binding device. Conveyor roller
The recording sheet S1 conveyed from 210 is conveyed by the normally rotating conveyance roller 3
It is conveyed by 00a and 300b, and its selected position is adjusted by the stopper 306. This is done as follows. Conveyor roller
The recording sheet which has been released from the gripped state of 300a and 300b and has lost the conveying force stops on the temporary fixing guide 302.
After that, the feeding roller 304 swaying around the point 305 presses on the recording sheet, rotates in the arrow direction for a certain period of time, and then returns to the solid line position. At this time, the leading edge of the recording sheet abuts on the stopper 306 and stops. Similarly, the leading edge of the recording sheet S2 to be fed next is also stopped.
The recording sheet S1 is arranged by 306 and is stacked on the recording sheet S1 which has already been fed and stopped. After all the recording sheets to be bound are stacked on the fixed guide 302 or when the number of sheets reaches the limit capacity for binding, the binding unit 307 moves down to bind the recording sheets. The binding direction is shown in Fig. 7 (b).
The direction is as shown by. After the binding operation, the binding unit 307
Moves up to its original position and returns, and the stopper 306 also moves up to form a conveyance path. After that, the feeding roller 304 descends to the position indicated by the broken line, contacts the recording sheet, and rotates. At this time, the rotation time of the roller 304 may be until the leading edge of the recording sheet is gripped by the transport rollers 301a and 301b to obtain a transport force.

When the binding device 18 is not operated, the stopper
306 is raised to form a conveyance path, and the feeding roller 3
04 is in the position of the broken line, and keeps the rotation continuous.
2 Press the recording sheet passing above to convey rollers 301a, 30a
Transport the recording sheet to 1b. The binding unit 307 is on the recording sheet conveying path so as not to hinder the progress of the sheets.

The binding portion 307 is movable in the sheet conveying direction by a drive device (not shown), and the position of the binding portion can be changed.

Further, in FIG. 7 (b), reference numeral 308 is a pressing portion of the paper binding needle, and this portion presses the recording sheet. Reference numeral 310 is a needle portion of a paper binding needle.

(B) Paper Folding Device FIG. 8 explains the operation of the paper folding device.
FIG. 8 (a) shows the process until the recording sheet is conveyed and the leading edge position is adjusted. FIG. 8 (b) shows that the paper is folded. FIG. 8 (c) shows how the paper is carried out after being folded.

(1) When the first recording sheet is fed, the feeding roller
It can be added to 310a and 310b. The roller 310a continues to rotate until the leading edge of the recording sheet hits the stopper 312. The stopper 312 can be moved in the direction of arrow A by a driving device (not shown) according to the length of the sheet in the conveying direction, and the bending length can be made variable. Here, the folding length of the sheet is determined by the size of the above-mentioned sheet selected. In FIG. 8, a pair of rollers 313 and 314 for improving the transportability of the sheet is shown. Laura 313,
314 swings about points 318 and 315, respectively. Reference numeral 317 is a support member made of an elastic material such as a Mylar film that supports the recording sheet from below, and has a notch provided at a position corresponding to the roller 314.

When the first recording sheet is fed, the roller 31
3,314 conveys the recording sheet.

(2) When the second recording sheet is fed, the roller 310a descends to the solid line position, and the rotation advances the sheet. The roller 313 is retracted to the position indicated by the broken line when the sheet front end reaches near the solid line position of the roller 313, but the roller 310a stops rotating when the recording sheet front end exceeds the position indicated by the solid line of the roller 313, Retreat to the position indicated by the broken line. After this, the roller 313 enters the position shown by the solid line and starts to rotate, and the rotation stops after the leading edge of the sheet reaches the stopper 312. The above is repeated for the third and subsequent sheets.

 Next, FIG. 8 (b) will be described.

The trailing edge of the recording sheet is sandwiched by rollers 310a and 310b. The roller 314 is retracted to the position indicated by the broken line.
The upper paper folding member 311a descends and the sheet is folded at 90 ° by the lower paper folding member 311b. At this time, the elastic support member 31
7 is bent by the sheet to the position shown by the broken line, but returns to the position shown by the solid line after the completion of the folding.

FIG. 8C illustrates the operation of conveying the folded recording sheet. The rollers 310a and 310b holding the trailing edge of the folded recording sheet start to rotate. The sheet is conveyed while being further folded by rollers 313 and 314, and sent to rollers 316a and 316b. The stopper 312 has moved to a position retracted from the transport path.

Although FIGS. 3 (a) to 3 (c) show an example in which a plurality of sheets are folded, the same operation can be performed for each sheet to perform the folding.

(C) Drilling device FIG. 9 shows a drilling device.

The basic operation is the same as that of the binding device 18 shown in FIG. The sheet conveyed from the paper folding device 16 is conveyed by the normally rotating conveying rollers 320a and 320b, and finally the leading end position is adjusted by the stopper 324.

The leading edge position of the recording sheet is regulated as follows. The sheet, which has lost the carrying force released from the gripped state of the carrying rollers 320a and 320b, stops on the temporarily fixed guide 323. After that, the feeding roller 325 swinging around the point 326 presses on the sheet, and after rotating in the arrow direction for a certain period of time, returns to the solid line position. At this time, the leading edge of the recording sheet is Stopper 324.
It is hit by and stops. Recording sheet to be fed next
In the same manner, the leading edge of S2 is trimmed by the stopper 324 and is stacked on the sheet S1 which has already been fed and stopped.

After all the sheets to be punched are stacked on the fixed guide 323, or when the number of sheets for the punching action limit is reached, the punching section 322 descends from the top to punch a sheet. After the punching action, the punching portion 322 moves up to its original position and returns, and the stopper 324 also moves up to form a conveyance path. After that, the feeding roller 325 descends to the position shown by the broken line, contacts the sheet, and rotates to feed the stacked sheet paper one by one from the top. When the sheets are bound by the binding device, they only need to be fed once.

When the punching device 20 is not operated, the stopper 324 is raised to form the conveyance path, the feeding roller 325 is at the position of the broken line, and the rotation is continued, and the sheet passing on the fixed guide 323 is passed. Pressing the conveying roller 321a,
The sheet is conveyed to 321b. The perforation section 322 is on the sheet conveying path so as not to hinder the progress of the sheet.

Now that the description of the operation of each device is completed, the step of forming image information as a toner image on a recording sheet by the recording device and performing paper processing as necessary will be described next. In this recording device, one image information is recorded on one side of the recording sheet. One image information is recorded on both sides of the recording sheet. Two image information is recorded on one side of the recording sheet. Both sides of the recording sheet are recorded. A mode in which two image information items are recorded in each of these four modes.

First, the operation of recording the document image information filed on a magneto-optical disk or the like on a sheet by the recording device 14 and performing paper processing as necessary will be described with reference to FIG.

(1) Designation of read file number In order to designate the file number of the document image information to be read and recorded, a desired file number is input by the ten keys 400, and the input file number is displayed on the display section 402. When the correction of the input is necessary, the clear key 404 is pressed to re-input.

(2) Read command A command to read the file corresponding to the file number input in (1) from the magneto-optical disk device 12 is issued by pressing the read button 406. When the head part of the magneto-optical disk device 12 finds the specified file number, the read button is lit by the built-in lamp, but when the specified file number cannot be found, it blinks repeatedly. .

(3) Single-sided / double-sided recording command This is a command to determine whether an image created by the recording device 14 is to be formed on one side or both sides of the recording paper, and is a "single-sided switch" corresponding to the single-sided recording mode. Press either 408 or "double-sided switch" 410 corresponding to the double-sided recording mode. At this time, the lamp built in the switch that was pressed lights up.

(4) Command of Number of Arrangement of Recorded Images Commanding whether to form one or two images on one side of the sheet. Specifically, the arrangement number key 412,414
Press one of. In this device, an A4 size recording image is formed on one side of an A4 cassette recording sheet attached to the recording device when the number of arrangements is 1, and when one is arranged, one side of the recording sheet from the A3 cassette is formed. Two A4 size images are formed side by side.

The image size and the recording sheet size are not limited to these.

(5) Binding Position Command In the double-sided recording mode and when the number of arranged recorded images is two, two modes are possible. FIG. 11 shows the two modes. One is a mode in which the page binding position is set to either the left or right side of the sheet and the page order is aligned when the pages are turned one by one. The other mode is a mode in which the page order is aligned when the binding position is set at the center of the sheet and the pages are turned one page at a time. This choice is switch 41
Achieved by pressing either 6,418.

(6) Command to select uniform / mixed mode for recording sheets When the number of images arranged on one side of the sheet is two, no image is formed on the recording sheet depending on the number of pages to be recorded and the both-side / single-sided recording mode. There can be parts. For example, in the double-sided recording mode, the number of pages J is J = 4K + 2 (K
= 0, 1, ...), there is a sheet on the back side that is not recorded, and the number of pages J is J = 2K + in the single-sided recording mode.
When represented by 1 (K = 0, 1, ...), there is a sheet in which half the area of one side is not imaged. Therefore, in order to reduce the waste of sheets, it is necessary to mix A4 size recording sheets. For example, when the number of pages is represented by J = 4K + 2 (K = 0,1, ...) in the above-mentioned double-sided copy mode, the last sheet is set to A4 size and recorded on both sides of the sheet, and the number of pages in single-sided recording mode is set. Is J = 2K + 1
When expressed by (K = 0,1, ...), the last sheet is A4
The size may be recorded on one side of the sheet. That is, even when the number of print images arranged is two, it is possible to eliminate waste of the print sheet by mixing the print modes in which the number of print images is one depending on the number of pages. On the contrary, there is also a mode in which the number of layouts is two regardless of the number of pages, that is, a mode in which recording is performed on a recording sheet of the same size (A3).
The selection of the two modes is accomplished by pressing either the unified switch 420 or the mixed switch 422.

(7) Setting the number of copies The number of copies of the file number specified in (1) is set. Specifically, the number of copies is input by the ten key 400 used in (1) and displayed on the display unit 424.

After it is confirmed by the read command in (2) that there is a file number to be read on the magneto-optical disk,
Enter the number of copies using the numeric keypad 400. This time,
To correct the file number to be read, the correction key 426 arranged next to the numeric keypad 400 is pressed, and then a new file number is input.

(8) Setting of Image Density The density of the image formed on the recording sheet is adjusted by the density adjusting lever 428.

(9) Binding margin creation instruction When it is desired to automatically create a binding margin capable of binding or punching a recording sheet, the binding margin creating switch 430 is pressed. If there is no binding margin in the image filed on the magneto-optical disk, a certain amount of binding margin is automatically secured, and if there is a binding margin, the binding margin creation switch is pushed or not pressed. , An image having a binding margin that is formed in advance is formed.

Whether or not the document has a binding margin is instructed when the document is read, and the instruction information is written on the magneto-optical disk, and it is determined by reading the information.

(10) Specifying the binding direction The binding direction of the copy created by the recording device is the 10th
It is designated by the binding direction designation key 432 in the figure. By the way, since the binding direction of the document is input when the document image information is input to the magneto-optical disk, when the file number required by the read command in (2) is searched, the binding direction information is read and corresponds to the binding direction. Then, a lamp built in the direction specifying key 432 is turned on. If a recording command is issued without specifying the binding direction, the binding direction of the sheet is determined by the binding direction information written on the magneto-optical disk. This is because the copy is made to have a shape close to that of the original, and there is an operational merit that the operator does not need to specify the binding direction. For example, if the binding direction of the original is left binding and the binding direction of the copy is to be bound to the right, the right binding key 436 is pressed to determine the binding direction.

(11) Adjusting the binding margin amount for copying When adjusting the binding margin amount on the sheet, first press the binding margin adjustment switch 438. Then, the binding amount information filed on the magneto-optical disk is read and displayed on the display unit 402. For example, the binding margin amount is displayed as 0, and when the binding margin amount is input by the paper binding key 400, the value is displayed on the display unit 402. If you want to reduce the binding amount, first enter the minus key 440 and then the numeric keypad 400. Or, instead of numerically indicating the binding margin,
When inputting the original image information, the information whether the original has sufficient binding margin for binding or punching the paper is input, and "Toji termite" or "Toji shironashi" is displayed on the display unit 402. It may be displayed.

When the binding margin adjustment switch 438 is not pressed, an image is automatically formed on the sheet with the binding margin determined by the reason described below. The binding margin amount of the sheet discharged from the printing apparatus during the printing operation can be visually checked, and the binding margin amount can be changed when it is determined that adjustment is necessary. However, even if an instruction to adjust the binding margin amount of copying is made after the writing operation of the image information on the photoconductor by the laser beam and before the writing operation is completed, the instruction is This is effective for writing the image information on the photoconductor by the laser light. Specifically, the input binding margin amount adjustment value is recorded in the memory 32, and based on this value, the exposure scanning is started or the sheet feeding timing by the register roller is controlled. It is not always necessary to adjust the binding margin of this copy, and the binding margin of 0, that is, the image information on the magneto-optical disk is directly recorded on the recording sheet by the recording device unless otherwise specified. .

(12) Paper processing command If the recording device 14 is connected to a paper processing device, such as a paper binding device 18, a punching device 20, and a paper folding device 16, and the user wants to perform paper processing on the recording sheet, The command can be issued or can be issued.

In FIG. 10, reference numeral 450 is a punching command switch for issuing a drilling command, 452 is a paper folding command switch for issuing a folding command, and 454.
Is a paper binding command switch for issuing a paper binding command. In the double-sided recording mode described in the instruction work of the binding position in (5), and when the number of images is two, when the binding command is issued by the binding command switch,
The binding is performed at the position corresponding to each.

(13) Recording command The recording and / or paper processing conditions described in (1) to (12) above are set, and a print command is issued.
Press 0 to start the recording operation. If you want to stop the operation during the recording operation, press the STOP switch 462.

Next, a mode for recording one image on one side of the sheet will be described.

In selecting this mode, the recording operation mode and the paper processing instruction shown in FIG. 10 are commanded. This is shown in the flow chart of FIG.

First of all, one image is recorded on one side of the sheet.
1 Press the switch 412 (that is, small size recording), and then press the "single-sided" 408 switch that instructs single-sided recording. Next, specify paper processing as necessary, but if there is paper folding specified Since it has no meaning, we do not accept paper folding commands.
Also, specify whether to create a binding margin. When the sheet processing commands for punching and binding are performed on the image-formed sheet, if the punching position and the binding position are the same, the effect of the binding action is reduced. Figures 3 (c) and 3 (d) show this, and
In FIGS. (A) and (b), assuming that L1 is the position for binding the paper when the binding is performed independently, and L3 is the position where the punching is performed independently, depending on the size of L1 and L3 and the diameter of the hole, As shown in FIG. 13 (c), the stapled paper is broken by the punching device. Further, as shown in FIG. 13 (d), the distance between the paper binding needle and the hole is too short, and there is a high possibility that the portion near the hole of the sheet is broken. Therefore, when there is a paper binding and punching command, at least one of them is moved relatively from the position where the paper processing is performed independently. FIG. 13 (b) shows this, and the binding position of the paper is performed at the position L2 (> L3) from one end of the sheet. That is, in FIG. 12 (2), if both the paper binding instruction and the punching instruction are given, the paper binding position is set to L2. If there is the paper binding instruction and there is no punching instruction, the paper binding position L1 is set.
Set to (steps 21 to 24).

In the case of the single-sided mode processing, the total number of pages of the desired file information to be printed is stored in the memory 32 in FIG.
It is read out and input to the variable M0, and M0 is substituted for the variable M indicating the print page (step 31). Then, the variable N indicating the number of print copies is incremented by 1 (step 3
2) Compare with the number of print settings (step 33). If printing of the set number of copies has not been completed, a small-sized recording sheet is selected (step 34), the image of the M page is read out, and exposure scanning is performed on the photosensitive drum by laser (step 35). In the exposure scanning of the image of the M-th page, as shown in FIG. 12 (5), first, the image of the M-th page is read from the disk device (step 78), and it is determined whether or not the left binding mode is set. If the left binding mode is designated (step 79), the image of the Mth page is read out from the DRAM in the forward direction and is exposed and scanned on the drum (step 80). If the right binding mode is designated, the data is read from the DRAM in the reverse direction and the exposure scanning is performed (step 81). Then, the recording sheet is printed and discharged to the paper processing device (step 39). If the total number of read file information pages is one, the binding operation is meaningless and the input is ignored (step 40). If there are multiple pages, set M to 1 to set the next read (record) page to the previous page.
Decrement (step 41), determine whether all pages have been printed (step), and if all pages have not been printed, return to step 34 to record the next page and finish all pages. If there is a paper binding command (step 43), if there is a command, the paper binding operation is performed (step 45). If there is a drilling command (step 44), if there is a command, punching operation is performed. Do (step
46). Then, the sheets are discharged to the sorter 13 and repeated until the copy setting number is reached.

By the way, in the exposure scanning in steps 80 and 81,
Items to be considered include the orientation of the image and the position of the image with respect to the sheet. In single-sided mode and when creating one image on one side, when deciding the direction and position of the image section, the binding direction of the original on which the image information is filed on the magneto-optical disk is either single-sided or double-sided. Whether there is a binding margin on the left or right depends on how much the binding margin is.In addition, exposure scanning is performed depending on whether or not paper processing is performed by a paper binding or punching device linked to the recording device. It will change. Each will be described below.

(1) When the input original is a single-sided original and there is no binding margin In this case, when the binding margin is required, the binding margin is secured by pressing the binding margin creating step 430, and if necessary. This is achieved by pressing the stitching margin adjustment step 438 and adjusting the stitching margin amount with the ten-key pad.

(A) When binding or punching a paper In order to match the binding position of the binding or punching position with the binding direction, it is necessary to control the position of the binding or punching device and the direction of the image portion. For example, the binding unit 307 of the paper binding device
When the position of is fixed downstream in the sheet conveying direction, in order to create an image for left binding, exposure scanning with a laser beam on the photoconductor is performed so that the image becomes an upright image, To create an image for the right-side binding, exposure scanning with a laser beam is performed on the photoconductor so that the image becomes an inverted image (see FIG. 14). Here photoconductor drum 200
The dashed line above represents the latent image. Further, when the binding portion is movable, the binding portion may be placed at the position (a) when the left binding image is to be created, and the binding portion may be placed at the position (c) when the right binding image is to be created. .

(B) When securing only the binding margin In this case, the image is recorded as an erect image for the purpose of facilitating the determination of the necessity of adjusting the binding margin amount. The position of the image is
When the binding margin creating switch 430 is specified, the binding margin is moved by a certain length in the direction in which the binding margin is created. The value of this fixed length is stored in the control unit 26. In addition, the binding amount adjustment switch 438 can increase or decrease the binding amount.

(2) When the input document is a single-sided document and has a binding margin (A) When the binding direction of the input document and the binding direction of the copy are the same In this case, the binding margin direction and binding margin of the document are Since the image information is input when it is filed on the magneto-optical disk, a recorded image having a binding margin equal to the binding margin of the original is obtained by simply pressing the print switch 460.

(A) When binding or punching a sheet With respect to the direction of the image portion, the position of the sheet binding device and the direction of the image portion may be controlled so that the binding position and the binding direction are aligned.

(B) When securing only the binding margin The direction of the image portion is an erect image, and the reason is the same as when securing the binding margin when the input document has one side and no binding margin.

(B) When the binding direction of the input document is different from the binding direction designated for copying In this case, the position of the image portion must be taken into consideration when creating the binding margin. For example, when the original is bound on the left and shown in FIG. 15 (a) and the copy is to be bound on the right, as shown by the broken line in FIG. 15 (b), the image part The position of L2-L1 (L2> L1)
It needs to be moved to the left side in Figure 15. Therefore, the exposure scanning timing corresponding to the leading edge of the recording image portion by the laser light and / or the recording sheet feeding start timing by the registration roller may be controlled.

Further, when it is necessary to adjust the binding margin amount, it is already described that the binding amount adjustment switch 438 is used.

(A) When binding or punching paper In this case, it is sufficient to control the position of the binding or punching device and the direction of the recorded image portion so that the binding position or punching position matches the binding direction. This is the same as when the input original is a single-sided original and there is no binding margin.

(B) To secure only the binding margin: Record as an upright image. The reason is the same as the case where the input document is a single-sided document and there is no binding margin, and the binding margin is simply secured.

(3) When the input original is a double-sided original and there is no binding margin In this case, the feature recorded on the magneto-optical disk is the same as when a single-sided original has no binding margin. The direction and position of the parts are determined.

(4) When the input original is a double-sided original and has a binding margin In this case, the direction of the recorded image portion is the same as when the input original is single-sided and has no binding margin. However, when the binding margin is required, the position of the recorded image portion must be separately considered depending on whether the binding direction of the input document and the designated binding direction of copy are the same or different.

In the following description, the inside of [] indicates a case where the binding direction of the input original and the binding direction of the copy are different. FIG. 16A shows that the input original is a double-sided original with left binding, and FIG. 16B shows that the front side of the input original is an image portion A and the back side is an image portion B. (C) shows the position of the recorded image portion when the designated binding direction of copy is the same as the binding direction of the input original, and (d) shows the right binding where the binding direction of the designated copy is different from the binding direction of the input original. In this case, the position of the recorded image portion is shown. Here, A ', A "and B', B" indicate the recorded image portions corresponding to the image portions A, B of the document, respectively. As is clear from Fig. 16, the recorded image portion A '[A "] of A is the left binding [right binding], which is the same as the binding direction of the input document [different]. As described in the section when the input original is a single-sided original and has a binding margin, and the binding direction of the input original and the binding direction of the copy are different, the binding direction of the input original and the binding direction of the copy are the same. If different, the desired recorded image can be obtained by changing the recording image position on the back surface [front surface].

A case where the input original is a right-sided double-sided original is shown in FIG. 17, but since it is apparent from the description of FIG. 16, detailed description will be omitted. Here, (a) shows that the input document is a right-sided double-sided document, (b) shows the front and back sides of the input document, and (c) shows that the designated binding direction of copy is the same as the binding direction of the input document. Shows the position of the recorded image part when binding to the right,
(D) shows the position of the recorded image portion in the case of left binding in which the designated binding direction of copy is different from the binding direction of the input document.
Further, when it is desired to adjust the position of the recorded image portion, the binding margin amount adjusting switch 438 is used as described above.

Regarding the exposure scanning, there are some other technical problems, and a method for solving them will be described.

(1) Concerning the direction change of the recorded image portion It has been explained that the direction of the recorded image portion can be changed by changing the read start position of the row address and the column address when reading the image information to be recorded from the DRAM. However, even when one file number for which a print command is issued is composed of a plurality of pages, and even if there is a command to change the direction of the image area during the print processing, at least one copy number of one file is recorded. When completed, the orientation of the image portion of each page must be the same.

For example, after the printing of the second page, an instruction to change the direction of the recorded image portion is issued, and when the control device 26 changes the direction from the third page based on the instruction, the recorded sheet becomes an upright image and an inverted image. In addition to the inconvenience that the operator has to align the directions of the images, if the sheet is punched or bound, a part of the image may be hidden or a hole may be punched. Therefore, if the image of the first page is recorded on the sheet, the control unit 26 ignores the direction change command until the recording of one file is completed, even if the direction change command of the image unit is input thereafter. However, the reading directions of the row address and the column address are not changed. This means not only the mode in which one image is recorded on only one side of the sheet, but also the mode in which one image is recorded on each side of the sheet, which will be described later. The mode in which two images are recorded on only one side of the sheet. The same applies to the mode of recording two images each.

(2) Paper Binding and Page Output Order The control of the read page order of the image information according to the operation direction of the stapling means, which is the operation of the control main stage of the present invention, will be described.

When binding a sheet discharged from the recording apparatus, the order of pages discharged to the outside of the recording apparatus is controlled so that the sheet binding needle pressing surface comes to the first page sheet. Referring to FIG. 3 (1), it can be seen that the recorded image formed on the recording sheet is face up, and from the flow chart of FIG. 12, when recording of one file is completed, the first page is the maximum. Become a high rank. The paper binding device 18 shown in FIG. 7 operates from above the sheet, and the direction of the paper binding needle is the direction shown in FIG. 7 (b), so the paper binding needle pressing surface 308 presses the first page. Therefore, when viewing the recorded image, the first page, which is frequently folded at the paper binding position, is unlikely to peel off. Further, when the binding portion 307 of the paper binding device 18 is located on the lower side of the sheet, it is configured and recorded on the paper transport path so that the toner image on the sheet is on the lower side at the paper binding position. The page order may be 1 page → 2 page → ………………. There is an effect that the recorded image can be visually confirmed in the paper conveyance path in which the image on the sheet is on the upper side as shown in FIG. 3 (1). This is not only a mode for recording one original image on only one side of the sheet, but also a mode for recording one image on each side of the sheet. A mode for recording two images on only one side of the sheet. The same applies to the mode for recording an image. It should be understood that in the above modes, the sheet of the first page refers to the surface of the sheet including the image of the first page.

Next, a mode for recording one image on each side of the recording sheet will be described.

To select this mode, press the "Layout number 1" switch 412 that commands a small-sized sheet and the "double-sided" switch 410 that commands double-sided recording from among the multiple switches on the operation plate shown in Fig. 10. , If paper processing is required, press the "paper processing designated switch". Next, "print", which is the recording start command
Recording is started by pressing switch 460. First
The movement of the seat in this mode will be described with reference to FIGS. 8 and 3 (1).

Take, for example, the case where one manuscript consists of 8 pages. This page number is input when the document image is filed in the electronic file device 12, and is read at the time of recording. When recording on the surface of a sheet, the sheet fed from the small-sized sheet cassette is transferred to the fixing device 207 by the conveying device 206 after being transferred with a visible image, and is fixed. After fixing
The sheets are guided by the guides 208 and 211 so that the conveyance path is in the intermediate tray
It is switched to the direction toward 14, and the visible image on the sheet is stacked on the intermediate tray 214 in a state in which it is faced up.

When recording on the front side, the even number of pages are output by the exposure apparatus 201, and the order is 2 pages → 4 pages →
6 pages → 8 pages. After the front side recording is completed, in order to record on the back side, the sheet re-fed by the feeding roller 213 from the intermediate tray 214 is reversed, and after transferring the visible image on the photoreceptor, it is fixed by the fixing device 207 and guided. The paper is discharged from the main body by 208, and paper treatment is performed if necessary.

When recording on the back side, the odd number page is output by the exposure device 201. Since the feeding roller 213 feeds the sheets stacked on the intermediate tray 214 from above, the exposure device
The order of output from 201 is 7 pages → 5 pages → 3 pages → 1 page. Figure 18 shows the page order relationship.

Alternatively, after the image of the eighth page is recorded on the sheet, the sheet is reversed and stored in the intermediate tray 214, the sheet is re-fed, and the image of the seventh page is recorded and discharged. Good. That is, only one sheet is stored in the intermediate tray. Then, from the exposure apparatus 201, 8 → 7 → 6 → 5
The output may be in the order of → 4 → 3 → 2 → 1 page.

Next, the double-sided recording mode for a small size sheet will be described again with reference to FIG.

When it is determined in step 13 that the mode is the double-sided mode, M ₀ is substituted for M _A as in the case of the single-sided mode, N is incremented by 1, and it is determined whether or not printing of the set number of copies is completed (steps 51 to 51). 53). Next, it is judged whether or not the total number of pages M ₀ of the desired file information is an even number (step 54), and if it is an even number, the process proceeds to step 61. If it is an odd number of sheets, substitute M ₀ for printing the last page to print the last page (step 55), select a small size recording sheet (step 56), and read the image of the Mth page. The photosensitive member is exposed and scanned by a laser (step 57), printed, and discharged to a paper processing device (step 58). And
It is judged whether the total number of pages is one (step 59), and if it is one, the process returns to step 52 to repeat the printing of the required number of copies. If it is not one, substitute the last page number of even pages for the variable M _A (step 60). Then, in order to print the first two even-numbered pages, 2 is substituted for M (step 61), a small size sheet is selected (step 62), the image of the Mth page is read, and the exposure scanning is performed. Perform (step 63), print and store in the intermediate tray (step 64). Then, M is incremented by 2 in order to print only even pages sequentially (step 65),
It is judged whether or not the last page of the even-numbered pages has been printed (step 66). If the last page of the even-numbered pages has not been printed, the process returns to step 62 and the process is repeated until the last page of the even-numbered pages is printed. If the last page has been printed, substitute M _A -1 for M to print the last unprinted odd page (step 6).
7) Select and feed the top sheet of the even-numbered pages printed on the intermediate tray (step 68), read the image of page M, and perform exposure scanning (step 69). ), Print and discharge to paper processing device (step 70). Then, to sequentially print odd pages, M is decremented by 2 (step 71), it is judged whether or not the first page has been printed (step 72), and if not completed, the procedure returns to step 68 to print the first page. If it is completed, it is judged whether there is a paper binding command (step 73). If there is a command, it is judged whether the total number of pages is more than 2 pages (step 73), and there is more than 2 pages. If the paper binding operation is performed (step 75) and there are two pages or less, the paper binding operation is meaningless and is ignored. Then, it is judged whether or not there is a drilling command (step 76), and if there is a command, a drilling operation is carried out (step 77). Then, the process returns to step 52 and is repeated until printing of the set number of copies is completed.

Here, in the step 57 of exposure scanning with a laser beam, in determining the direction of the recorded image, when the binding direction of the sheet and the binding or punching of the paper are performed, the compatibility with the apparatus becomes a problem.

When creating a binding margin, the position of the recorded image portion becomes a problem. This is related to the binding direction and binding margin of the input document. These will be described below.

(1) When the input document is a one-sided document and has no binding margin (A) When binding or punching a sheet In this case, a binding device (a punching device) is used to match the binding position of the sheet or the binding position with the binding direction. ) Position and the orientation of the recorded images on both sides of the sheet. The areas indicated by broken lines in FIGS. 19 (a) and 19 (b) are the image portion of the input document, and when the operator designates the left binding, in order to create the binding margin, the recording image portion is the length of L1 respectively. By shifting the position of, an image having a binding margin as shown in FIG. 19 (c) can be obtained. L1 is set in advance, in the mode where the input original is a single-sided original and there is no binding margin, in order to automatically shift the position of the image part by the length of L1 when the binding margin is required, The timing of exposure scanning by laser light or the start of feeding the registration rollers is controlled. In addition, the binding amount adjustment switch 438 adjusts the binding amount as necessary.

Next, the direction of the recorded image is controlled in the same direction as in the case where the input original is a single-sided original and binding is performed in the mode in which there is no binding margin. For example, when the paper binding position is fixed downstream in the sheet conveying direction and it is desired to create a left binding image, exposure scanning with a laser beam is performed so that the recorded image becomes an upright image (first (See Fig. 14 (a)). When the paper binding position is variable, the direction of the recorded image may be controlled according to the binding position (see FIG. 14 (c)).

(B) When securing only the binding margin In this case, it is not necessary to consider the paper binding or the punching position. The image is recorded as an erect image for the purpose of easily confirming the image quality of the recorded image on the sheet or determining whether or not it is necessary to adjust the binding margin amount.

(2) When the input original is a single-sided original and has a binding margin In this case, the binding direction of the input original and the designated binding direction of copy may be the same or different.

First, the case where the binding direction of the input document and the designated binding direction of copy are the same will be described. FIG. 20 (a) shows images A and B recorded on the front and back of one sheet, and FIG. 20 (b) shows that when the image portion is formed on the sheet, the binding margin is not formed well. There is. In order to match the binding margins on the front and back sides of the sheet, the position of image B corresponding to the back side is set to L2-L1 (L2> L1) as shown in FIG. Just slide it to the side.

If the binding direction of the input document and the binding direction of the copy are different, the position of the image A corresponding to the front surface of the sheet is set.
Only L2-L1 should be moved to the side opposite to the binding position of the input document.

Regarding the orientation of the recorded image, as described in the section for the mode in which the input original is single-sided and there is no binding margin, when binding or punching a sheet, the binding position of the sheet or the punching position must be aligned. If you just want to secure the binding margin, record with an upright image.

(3) When the input original is a double-sided original and there is no binding margin In this case, the positioning of the image portion is the same as in the mode in which the input original is a single-sided original and there is no binding margin, and the recorded image is The position and direction of the recorded image portion are determined in the same manner, only the difference between the one-sided original and two one-sided originals.

(4) When the input document is a double-sided document and has a binding margin (A) When the binding direction of the input document is the same as the designated binding direction of copy When binding or punching paper, To ensure that the binding directions are the same,
7 or the position of the punching portion 322 of the punching device and the direction of the recorded image on both sides of the sheet need to be controlled.
FIG. 21 (a) shows the left-edge binding original with A and B images written on both sides, and FIG. 21 (b) shows the positions of the A and B images on the front and back sides of the input original. ing. (C) shows the recorded image desired by the operator, that is, the left binding, which is the same binding direction as the input document, and (d) shows the image portions A and B corresponding to the front and back of the sheet. There is.
Comparing (b) and (d), the image position of the input document and the image position of the recorded image portion correspond, and it is not necessary to shift the position of the recorded image portion in order to create the binding margin. I understand. The same applies to the case of right binding.

The direction of the recorded image portion on both sides of the recording sheet can be determined by deciding the direction of the recorded image corresponding to the binding or punching position as described in the section of the mode in which the input document is already a one-sided document and there is no binding margin. Good.

When the binding or punching is not performed, the direction of the recorded image is output as an upright image.

(B) When the binding direction of the input document is different from the designated binding direction of copy In this case as well, in the case of binding or punching a sheet, in order to match the binding direction of the binding or the punching position, It is necessary to control the position of the punch and the orientation of the recorded images on both sides of the sheet. First
Figure 22 (a) shows the left-edge binding original with A and B images written on both sides of the sheet, and (b) shows the input original.
The positions of the A and B images are shown. (C) shows a recorded image desired by the operator, which is right binding in a binding direction different from that of the input document, and (d) shows image portions A and B corresponding to the front and back of the sheet. . Comparing (b) and (d), since the image position of the input document and the image position of the recorded image part are based on the ends facing each other on the sheet, the margins when the operator desires In order to create, the recorded image parts A and B on the sheet are L2-L1 (L2> L
The timing of exposure scanning by the laser beam and / or the feeding of the registration rollers is controlled so that the amount of 1) is moved in the direction opposite to the binding position of the input document. The direction of the recorded image on both sides of the sheet corresponds to the position of the paper binding or punching device, as described in the section for the mode in which the input document is a single-sided document and has no binding margin. It may be determined, and if the binding or punching is not performed, the recorded image is output as an erect image.

Next, a mode in which two images are recorded on only one side of the sheet will be described.

Large size sheets are used in this mode. A recording command in this recording mode will be described mainly with reference to FIGS. 10 and 23. First, the read file number is input using the ten-key pad 400, and the read key 406 is pressed to search the magneto-optical disk for the position of the information of the desired file number. Then, the "single-sided" switch 408 that specifies single-sided recording is pressed. Two
Since one image is arranged on one side, the arrangement number key "2" 414 is pressed. Then, the number of copies is set and the image density is set. To create a binding margin on the sheet, press the "Binding margin creation" switch 430. When paper processing such as paper folding, binding, and punching is necessary, the paper processing switches 450 to 454 that specify these are pressed. By the way, if you press the paper folding switch 452 in this mode (step 9
1), the display shows that it automatically switches to the mode in which one image is recorded on both sides of the sheet (step 9).
2). That is, the lamps built in the one-sided switch 408 and the recorded image arrangement number switch “2” 414 are turned off, and the two-sided switch 410 and the recorded image arrangement number switch “1” 412, respectively.
The built-in lamp lights up. This is a large size (A3 or B4) sheet with two images formed on one side and a folded paper and a small size (A4 or B5) sheet on both sides.
Even if the number of images to be recorded is two, the thickness of the former is twice the thickness of the latter, so the recorded is bulky (24th image). If a paper folding command is issued in this mode, pressing the print switch will switch to a mode in which one image is recorded on each side of one sheet (step 93). Nevertheless, when two images are recorded on one side of the sheet and a printed matter obtained by folding the sheet is to be obtained, one of the one-sided switch 408 or the number of recorded images arranged switch "2" 414 is pressed ( Step 93), the double-sided switch 410 and the number of arrangements of recorded images switch "1" 412, which have been preferentially turned on, are turned off.
In this case, the built-in lamp of the paper folding switch 452 keeps lighting. At steps 94 and 95, it is determined whether or not the recording of the designated number of copies has been completed.

Now, one of the points to be considered in the exposure scanning by the laser beam in the mode of recording two images on one side of the sheet is that the final page depends on whether the total pages of the file to be recorded are odd pages or even pages. Whether or not a margin is formed on the sheet on which the image is formed. When the total number of pages of a file to be recorded is M _0, and M ₀ is an odd number, one side of the sheet on which the image of M ₀ page is formed must be a blank space.

In the reversal development type laser beam printer, a blank space is formed by not performing exposure scanning with a laser beam.
Step 96 takes this into account.
97 and 98 show the relationship between M ₁ and M ₂ when the pages of two images formed on one sheet are M ₁ and M ₂ (M ₁ > M ₂ ), respectively. If M ₀ is odd, the margin portion is formed on the sheet becomes M ₀ page and pair are expressed as M ₀ +1 pp. A large size (A3 or B4) sheet is fed from the paper feeding section (step 99).

Next, exposure scanning with a laser beam is performed, but when the number of images arranged on one recording sheet is two, that is, a method of forming two image portions on one surface of a large-sized sheet will be described.

First, prior to the exposure scanning with the laser light, an image for two pages is read from the magneto-optical disk and temporarily stored in the page memory (DRAM) 28. Next, one page of image information is retrieved from the page memory 28, the photosensitive drum 200 is exposed and scanned by the laser light, and after the exposure scanning is completed, the remaining one page of image information is exposed and scanned by the laser light. It

FIG. 26 illustrates the case where the number of pages is 8, and the first sheet has pages 7 and 8, the second sheet has pages 5 and 6, and the third sheet. The images of pages 3 and 4 are recorded on the fourth sheet, and the images of pages 1 and 2 are recorded on the fourth sheet.

Here, the arrangement of the two recorded images in the left-right direction is determined by the control circuit 26 in accordance with the binding direction, and the binding direction is designated by the binding direction designating switch 432. For example, if a paper binding or punching device is placed downstream of the sheet conveying path and you want to obtain a left binding recording sheet, the image part of the erect image M ₁ page is on the left, or the erect image M ₂ page (M ₂ > M ₁ ) The image part of is aligned to the right. The M ₁ page when the exposure scanning by the laser beam of the _second page M is performed from a direction indicated by an arrow A in the FIG. 5 (a). On the other hand, when you want to obtain a right-staple recording sheet, the image section on page M _{1 of an} erect image is on the right, and the image section on page M _{2 of an} erect image (M ₂ >
The images of M ₁ ) are juxtaposed to the left, and the paper binding or punching position,
The specified binding direction is aligned. Note erected here, if upside down is that _one page M is right, M ₂ pages is naturally to be juxtaposed to the left in the left binding, M ₁ page, laser page ₂ M The exposure scanning with light is performed from the direction shown by arrow B in FIG. Step 109 to Step 114
The above is a description of the above.

Whether an image of M ₁ page and M ₂ pages located on either the left and right seat Incidentally, binding direction designation switch 432
It has already been described that the switching can be performed by. When the exposure scanning with the laser light is completed, development and fixing are performed and the sheet is discharged to the paper processing apparatus (step 101-1).

By the way, in the mode in which two images are recorded on one side or both sides of a sheet, there is a point to consider regarding the left and right arrangement of the two images on the sheet. That is, even if there is a command to change the left and right arrangements of two images, at least if the exposure scanning by the laser beam for one page of the first one is started, the command is ignored. In this apparatus, the instruction to change the left and right arrangement of two images is the binding direction designation switch 432. For example, the binding direction is specified as left binding, after the recording on the first sheet of recording paper is completed, the binding direction of the sheet is changed to right binding, and after the recording of the second sheet is changed to left binding, If the right-hand binding is changed after the third recording is completed, the left side of the first recording sheet is 1 as shown in FIG. 25.
Page, right side is 2 pages, second recording sheet is left side 4 pages, right side is 3 pages, third recording sheet is left side 5 pages, right side 6
The left and right sides of the fourth and fourth recording sheets are 8 and 7, respectively, and when the image is viewed, the binding direction changes from sheet to sheet, making it difficult to see. Therefore, even if a command to change the arrangement of the left and right images is issued after the recording operation of the first sheet, the binding direction must not be changed until the recording of all pages of at least one file is completed. Is required. Specifically, when the binding direction designation change is input to the control unit 26, when the recording of the first sheet is completed, it is achieved by controlling the input of the command to be prohibited. The meaning of recording completion here will be described. That is, it means that the recording sheet is ejected to the outside of the machine without being jammed between the paper feed section and the ejection section. However, depending on the apparatus, the next recording operation, such as charging, exposure, and development, is performed and the next sheet is transferred before it is confirmed that the first sheet has been ejected out of the machine without jamming. It may be fed from the paper feed unit. In this case, 1
Since the recording operation of the second sheet is performed on the assumption that the second sheet does not jam, it is clear that the present invention can be applied to such a case. More practically, it is achieved by prohibiting the input of the command even if the binding direction change command is issued after the exposure scanning of the first sheet is completed. Alternatively, even if a binding direction changing command is issued after the exposure scanning of one image of the first sheet is started, the input of the command is prohibited. In this case, if a binding direction change command is issued before the first sheet is fed from the registration rollers, the sheet feeding from the registration rollers is temporarily stopped,
In the next exposure process, the exposure scanning of the first sheet is performed in the changed binding direction, and the sheet is fed from the registration rollers at the timing when the leading edge of the image coincides with the sheet and the leading edge. The matters relating to the change of the left and right image positions by the paper binding direction change command can be applied to the mode described below in which two images are recorded on both sides of the sheet.

Steps 101-2 and 101-3 are steps that indicate that a paper folding will be performed if a paper folding instruction is issued.

At step 102, M ₁ and M ₂ are decremented by _two to determine the pages of two images to be formed on the next sheet.
Step 103 is indicative whether page ₂ M is less than 1, i.e. whether to or exit continue recording of the designated file (the 1 whether the page), step 99 if necessary to continue the recording If the recording is completed, the process proceeds to the paper processing step.

Steps 104 to 108 indicate that respective processing is performed if there is a binding or folding command. If the number of pages of the specified file is 2 or less, the sheet binding is not performed even if there is a sheet binding command (step
105). This is because there is only one sheet and there is no point in binding the paper.

The steps of the recording operation described above will be described with reference to FIG. 26 in which the total number of pages is eight. Large size (A
The recording sheet of 3) is fed from a total of four sheet feeding units 202 to 204. The first sheet has pages 7 and 8, the second sheet has pages 5 and 6, the third sheet has pages 3 and 4, and the fourth sheet has page 1. The image of the second page is recorded, and the first sheet is ejected first to the paper processing apparatus.

When recording is performed in such an order that the image portion is turned upside down, the sheet on which the first page is recorded is at the top, and the sheet can be seen from the top as it is. The pressing portion of the paper binding staple presses the uppermost sheet that is bent most when viewed, that is, the sheet on which the image of the first page is recorded, which is effective in protecting the sheet.

Next, a mode for recording two images on both sides of the sheet will be described. The recording command in this recording mode will be described step by step mainly in FIG. First numeric keypad
The read file number is input by 400, and the read key 406 is pressed to search the position of the file number information to be obtained from the magneto-optical disk. Then press the "duplex" switch 410 that specifies double-sided recording. Since the two images are arranged on one side, the arrangement number key “2” 414 is pressed.

Then, the mode is selected in the double-sided recording mode and the number of arrangements is two. It has already been mentioned that this mode has two aspects. (1) A mode in which the page order is aligned when the paper binding is performed on either the left or right side of the recording paper (1st mode), and (2) the paper binding is centered on the recording sheet. This is a mode (second mode) in which the page order is aligned when the pages are turned one page at a time. The selection of any one of the above modes is to select one of the two switches that are branched and arranged below the switch 414 having the arrangement number “2”, and the first mode is the left switch 416,
In the second mode, the right switch 418 is pressed respectively.

Then, the recording paper size unifying mode or the recording paper size mixing mode is designated. Unless otherwise specified, the processing is performed in the unified recording paper size mode, and if the number of copies is set, the image density is set, and the binding margin is created on the recording sheet, the binding margin creation switch 430 is used. Push. When paper processing such as paper folding, binding, and punching is necessary, the paper processing switch for designating these is pressed.

Next, the recording operation in this mode will be described mainly with reference to FIG. In steps 115 and 116, it is determined whether or not the recording of the set number of copies is completed. Then, in step 117, it is judged whether or not the mode is the second mode. In the case of the first mode, step 11
9. If in the second mode, proceed to step 118. Step
At 119, it is determined whether the size unifying mode or the size mixing mode is selected. If the size unifying mode is selected, the process proceeds to step 122.
In the size mixed mode, the procedure proceeds to step 123.

(A) First Mode (1) Size Uniform Mode Step 122 shows that the recording operation is performed in the size uniform mode, which will be described with reference to FIG. The size unifying mode here is a mode in which sheet feeding and recording operations are controlled so as to unify sheets to a large size. In this mode, paper conveyance and exposure scanning in the recording apparatus differ depending on the number of pages of the file to be obtained. Here, the case of left binding will be described. In FIG. 27, the left side of the figure shows the page order of the recorded sheets and the arrangement of each page, and the right side of the figure shows the sheets discharged from the recording apparatus and the vertical relationship of the sheets in the intermediate tray and the page order. Shows the movement of the seat. In this case, the lowermost sheet is discharged, the lower tray is stacked on the intermediate tray, and the uppermost stacked sheets are fed. The subscript entered on the sheet represents the page. The explanation of the contents of these (a), (b) and (c) is described in the 28th
It is also commonly used in FIGS. 29 and 30.

Here, a case where the number of sheets is 3 will be described. Since four images can be recorded on the front and back of one sheet, the total number of pages of the file is M ₀ = 4K, M ₀ = 4K + 1, M ₀ = 4K.
It can be expressed in four ways: +2, M ₀ = 4K + 3, (K = 1,2, ………………).

First, in the case where the total number of pages can be represented by M ₀ = 4K, K = 3
That is, the case of page 12 will be described. The first sheet is recorded in the order of pages 3 and 4, and is stacked on the intermediate tray 214. The second sheet is recorded in the order of page 7 and page 8 and stacked on the first sheet of the intermediate tray 214. On the third sheet, pages 11 and 12 are recorded in that order, and the intermediate tray 21
Stacked on the second sheet of 4 Next, the third sheet is fed from the intermediate tray 214 and recorded on the front side in the order of page 9 and page 10. Similarly, the second sheet is fed from the intermediate tray 214 and recorded on the back side in the order of pages 5 and 6, and then the first sheet is fed from the intermediate tray 220 and the back side is fed with pages 1 and 2. Recorded in page order.

If the total number of pages is represented by M ₀ = 4K + 1, the last page is recorded alone on one sheet. Considering the case where K = 2, that is, the total number of pages is 9, the first sheet is ejected to the outside of the machine after the last page of 9 pages is recorded.
For the remaining images, the total number of pages is represented by M ₀ = 4K, K =
The recording operation corresponding to 2 is performed. Total number of pages is M ₀ =
When represented by 4K + 2, only the last page and the previous page are recorded on one sheet. Considering the case of K = 2, that is, the total number of pages is 10, the first sheet is recorded in the order of 9 pages and 10 pages, and then discharged as it is from the apparatus. For the remaining images, the total number of pages is represented by M ₀ = 4K, and the recording operation is performed when K = 2. Finally, if the total number of pages is represented by M ₀ = 4K + 3 is, M ₀ -1 page on the back surface of the sheet last page M ₀ is recorded and
M ₀ -2 pages are recorded. For the remaining images, M ₀ =
The recording operation for 4K is performed. This is K
= 2, that is, when the total number of pages is 11,
The images are recorded on the first sheet in the order of pages 3 and 4, and are stacked in the intermediate tray. On the second sheet,
The images are recorded in the order of page 7 and page 8 and are stacked on the first sheet in the intermediate tray. 11 for the third sheet
The image of only the page is recorded and stacked on the second sheet in the intermediate tray. Next, the third sheet is fed from the intermediate tray and the image is recorded on the back side in the order of page 9 and page 10. Thereafter, the second and first sheets are fed from the intermediate tray, and the images thereof are recorded on the back side thereof in order of page 5, page 6 and page 1, respectively.

A flow chart showing the above recording operation is shown in FIG. 23 (7).

Fig. 33 shows the case where the total number of pages is 12 on the right binding, but if the image part of each page is an upright image, the layout of the pages formed on one sheet is on the left binding. You can see that they are opposite when compared with. To align the specified binding direction with the paper binding or punching position, use the punching or binding device with the specified binding direction left binding, if the image is upright, the sheet is on the downstream side of the sheet conveyance path, and if it is inverted, the sheet is sheet. Upstream of the transport path,
When the designated binding direction is right binding, it may be arranged on the upstream side of the sheet conveying path for an erect image and on the downstream side of the sheet conveying path for an inverted image. This can be easily understood from FIG.

(2) Size Mixing Mode Step 123 shows that the recording operation is performed in the size mixing mode, which will be described with reference to FIG. The size mixing mode is a mode for selecting a size of a sheet to be recorded according to the total number of pages of a read file to obtain a printed matter having no blank page or few blank pages. In this mode, the total number of read file pages M ₀ is M ₀ = 4K
Only it performed for the case +1 (K = 0, 1, 2) or _{M 0 = 4K + 2 (K} = 0,1,2). The total number of pages in the read file M ₀ is
When M ₀ = 4K and M ₀ = 4K + 3, the same paper conveyance and exposure scanning as in the size uniform mode are performed. In this mode, when the total number of pages of the read file is represented by M ₀ = 4K + 1 and M ₀ = 4K + 2, a small size (A4 or B5 size) sheet is used.

When the total number of pages in the read file is represented by M ₀ = 4K + 1, the last page is recorded on only one side of the small size sheet, and when represented by M ₀ = 4K + 2, the last page and the previous page are recorded. It is recorded on both sides of a small size sheet. Total number of pages is M ₀
= 4K + 1, the case of K = 2 will be described with reference to FIG. 28. The first sheet is a small-sized sheet fed from the sheet feeding units 202 to 204, and the ninth page is recorded, and then out of the machine. Is discharged to. The second and third sheets are large size sheets 202-204
The relationship between the movement of the sheet fed from the sheet and the recorded page is similar to the case where the total number of pages is M ₀ = 4K and K = 2. When the total number of pages is M ₀ = 4K + 2, an example of K = 2 will be described.
Fed from the intermediate tray 21
It is loaded within 4. Next, the second large-sized sheet is also fed and recorded in the order of page 7 and page 8, and then the intermediate tray 214
It is stacked on the first sheet inside. Next, a small size sheet is fed from the paper feeding unit, and after recording 10 pages,
The sheets are stacked on the second sheet in the intermediate tray 214. Next, the third sheet is fed from the intermediate tray 214, 9 pages are recorded on the back surface, and then the sheet is ejected to the outside of the machine. Further, the second large-sized sheet is fed from the intermediate tray 214 and discharged to the outside of the machine in which 5 and 6 pages are recorded on the back side. Similarly, 1st page and 2nd page are recorded on the back surface of the first sheet, and the sheet is discharged out of the apparatus.

The flow chart of the above recording operation is shown in FIG. 23 (8).
It is shown in. In Step 122 and Step 123,
The recording sheet which has completed the recording operation in the size unifying mode and the size mixing mode indicates that the paper processing is performed if the binding and punching are designated in steps 128 to 132, respectively. After this step is completed, the procedure returns to step 115 again, and the recording operation is repeated if necessary. The relationship between the binding direction and the punching or paper binding position is the same as in the size unifying mode.

(B) Second Mode If it is determined in Step 117 that the mode is the second mode, Step 1
Determine whether it is the size unified mode or size mixed mode in 18,
When the size unifying mode is selected, the process proceeds to step 120, and when the size mixing mode is selected, the process proceeds to step 121.

(1) Size Uniform Mode Step 120 shows that the recording operation is performed in the size uniform mode, which will be described with reference to FIG. Even in this mode, the paper conveyance and the exposure scanning in the recording apparatus differ depending on the total number of pages of the file to be obtained.
The case of three sheets with left binding will be described. First, when the total number of pages is M ₀ = 4K (K = 1,2, …………), that is, K = 3
Will be described as an example. 2 pages on the first sheet,
Recording is performed in the order of page 11, and the sheets are stacked in the intermediate tray. Recording is performed on the second sheet in order of pages 4 and 9, and the sheets are stacked on the first sheet in the intermediate tray. Three
Recording is performed on page 6 and page 7 in this order on the second sheet, and the sheets are stacked on the second sheet in the intermediate tray. Then 3
The second sheet is fed from the intermediate tray, 8 pages on the back,
The image on page 5 is recorded and ejected out of the machine. Similarly, the images of 10 pages and 3 pages are recorded on the back side of the second sheet, and the images of 12 pages and 1 page are recorded on the back side of the first sheet.

Next, a case where the total number of pages is M ₀ = 4K + 1 (K = 0,1,2, ...), that is, K = 2 will be described as an example. Only the image of two pages is recorded on the first sheet, and the other one page becomes a blank portion and is stacked on the intermediate tray 214. On the third sheet, images are recorded in order of pages 6 and 7, and the intermediate tray 214
It is stacked on the second sheet inside. Next, the third sheet is fed from the intermediate tray 214, images are recorded on the back side in the order of pages 8 and 5, and the sheets are ejected to the outside of the machine. Further, the second sheet is fed from the intermediate tray 214, and the back side of the second sheet is subjected to an exposure scan for one page and the third page is recorded at a position where four pages and the front and back sides are related, and the other one page is a blank part. And is discharged out of the machine. Similarly, the first sheet is fed from the intermediate tray, one page is recorded on the back side at a position where two pages are related to the front and back, and the other one page is discharged as a blank part to the outside of the machine. .

Next, a case where the total number of pages is M ₀ = 4K + 2 will be described. The first one,
The pages recorded on the back surfaces of the second and third sheets and the order thereof are the same as in the case of M ₀ = 4K + 1. The pages recorded on the back surfaces of the third and first sheets fed from the intermediate tray and the order thereof are the same as in the case of M ₀ = 4K + 1. The difference is that images of 10 pages and 3 pages are recorded on the back surface of the second sheet fed from the intermediate tray.

Finally, the case where the total number of pages is M ₀ = 4K + 3 will be described. The pages recorded on the respective surfaces of the first, second, and third sheets and the order thereof are the same as in the case of M ₀ = 4K. Also, the pages recorded on the back surface of the second and first sheets fed from the intermediate tray and the order thereof are the same as in the case of M ₀ = 4K + 2. The difference is that on the back side of the first sheet fed from the intermediate tray, one page is recorded at a position where two pages are related to the front and back, and the other one page is a blank part. In this size unifying mode, paper folding is performed as necessary, and the direction is the direction shown in FIG. 8. The relationship between the paper folding direction and the pages formed on the sheet is one page at a time. The page order is controlled so that the page order is aligned.

(2) Size Mixing Mode Step 121 shows that the recording operation is performed in the size mixing mode, which will be described with reference to FIG. Even in this mode, paper conveyance and exposure scanning in the recording apparatus differ depending on the total number of pages of the file to be obtained. Here, the case of left binding will be described.

In this size mixed mode, the total number of pages is M ₀ = 4K +
In the case of M ₀ = 4K + 3, both paper conveyance and exposure scanning are the same as in the size uniform mode.

A case where the total number of pages is M ₀ = 4K + 1 will be described. A small-size sheet is fed as the first sheet, an image of page 9 is recorded and discharged to the outside of the machine, and passes without performing the paper folding operation regardless of the presence or absence of the paper folding command. Large-sized sheets are fed as the second and third sheets, images of pages 2, 7, 4 and 5 are recorded, respectively, and the second sheet is placed in the intermediate tray. To be done. Next, the third sheet is fed from the intermediate tray, images of pages 6 and 3 are recorded on the back side, and the sheet is discharged outside the machine. Finally, the second sheet is fed from the intermediate tray, images of 8 pages and 1 page are recorded on the back side, and the sheets are discharged outside the machine.

Next, a case where the total number of pages is M ₀ = 4K + 2 will be described. M ₀ = 4K +
The difference from the case of 1 is that it is necessary to store the sheet in the intermediate tray and re-feed it in order to record not only on the front side but also on the back side of the small size sheet.

The first sheet is a large size sheet fed, 2 pages,
Images are recorded in the order of page 7 and stored in the intermediate tray. The second sheet also has a large size, and images are recorded in the order of pages 4 and 5, and the sheets are stacked on the first sheet in the intermediate tray. The third sheet has a small size (A4), and after the image of 10 pages is recorded, it is stacked on the second sheet in the intermediate tray.

Next, the third sheet is fed from the intermediate tray, the image of page 9 is recorded on the back side, is discharged to the outside of the machine, and passes without performing the paper folding operation regardless of the presence or absence of the paper folding command. The second sheet is then fed from the intermediate tray,
Images are recorded in the order of page 3 and then discharged out of the machine. Finally, an image is recorded on the back surface of the first sheet in the order of 8 pages and 1 page. The large-sized first and second sheets are folded at the center as necessary, but the direction is the direction shown in FIG. 8, and the direction of folding and the page formed on the sheet. Is controlled so that the page order is aligned when the pages are turned page by page. And steps 124-127
If the binding and punching of paper are designated in, respectively, those papers are processed. After this step is completed, the procedure returns to step 115 again, and the recording operation is repeated if necessary. By the way, when binding a sheet in the second mode, it may be necessary to change the order of the exposure scanning of each page. That is the case when the total number of pages of the calling file exceeds the capacity of the binding device. As will be described with reference to FIG. 31, it is assumed that the sheet binding device has a sheet binding capability of four sheets.

A case where the total number of pages is 16 will be described as an example. FIG. 31 (a) shows the relation of the pages of the sheet when the capacity of the paper binding device is sufficient compared with the total number of pages (that is, 16 pages can be bound at once). FIG. 6B shows the relationship between the front and back pages when the sheets are developed one by one. FIG. 31 (c) shows a case where the sheet binding device has a sheet binding capacity of four sheets and the sheets on which images for 16 pages are recorded cannot be bound at one time, and the pages of the sheets are divided into two sets. FIG. 31 (d) shows the relationship in the page order on the front and back sides when developed sheet by sheet. As is clear from comparison between FIGS. 31 (b) and 31 (d), the number of pages formed on one front and back sheet is different, which means that the exposure by laser light is different. It can be seen that the scanning needs to be controlled according to the paper binding capacity and the total number of pages. For example, consider a sheet on which the first page is recorded.

By comparing FIGS. 31 (b) and 31 (d), the difference in pages recorded on the front surface and the back surface of each sheet can be seen. A specific description will be given of how to control the page order. The total number of pages is M ₀ pages, and the binding capability of the binding device is KN sheets. When a sheet is folded in two and the binding is performed at a position where it is slightly shifted from the folding position, that is, in the center, one sheet is bound at two locations with one binding needle. Paper binding capacity KN
When using a large size sheet binding device, KN / 2
It is represented by the integer value of N2. Then, the number of sheets required to record all pages NN is (M ₀ +3)
It can be expressed by an integer value of / 4. When binding a sheet on which images of all pages are bound, the number of bindings KK is Is an integer value of.

From the above, images of all pages that exceed the binding capability of the binding device are divided into a bundle of one or a plurality of sheets, and the bundle of sheets existing on the first page is placed on the discharge tray to the uppermost final page. When the M ₀ pages are stacked on the lower side, the target pages of the bundle of sheets are as follows.

The first paper binding target is (KK-1) x 4 x N2 + 1 pages to M ₀ page The second paper binding target is (KK-2) x 4 x N2 + 1 pages to (KK-1) x
4 × N2 pages KK-1st binding target is 1 × 4 × N2 + 1 pages to 2 × 4 × N2 pages KKth binding target is page 1 to 1 × 4 × N2 pages These are shown in the flow chart. Fig. 32 shows what is described below. Step 1 is from the page to be bound for the first time, that is, (KK-1) × 4 × N2 + 1 pages
The recording operation and the paper binding of up to M ₀ pages carry out the work.

Details of the specific sheet movement and page order have already been described, and will not be repeated.

Since step 2 has already performed the paper binding once in step 1, the KK value is subtracted by 1 in order to control the remaining number of paper bindings, and step 3 is the paper subtracted in step 2. If the binding count KK is KK <0, END is set, and KK>
If it is 0, the recording operation and the number of times of paper binding are further performed the required number of times, and therefore the process proceeds to step 4.

Step 4 is 4 × (KK-1) × N2 + 1 pages to 4 × KK ×
When the printing operation up to page N2 and the binding of paper are completed and the processing is completed, the process returns to step 2.

〔effect〕

As described above, according to the present invention, the reading means is controlled so that the action direction of the stapling means with respect to the front and back sides of the recording material is recognized and the page order of the image information to be read from the storage medium is changed according to the recognition result. By doing so, it is possible to carry out stapling from the side of one page, which has a large number of times of turning, regardless of the operating direction of the stapling means, and it is possible to reduce damage to the recording material.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a system to which the present invention can be applied, FIG. 2 is a perspective view showing the configuration of a magneto-optical disk device, and FIG. 3 (1) is a sectional view showing the configuration of a recording device and a reading device. 3 (2) is a sectional view showing the configuration of the reading device,
FIG. 4 is a view showing an operation unit for reading an image, FIG. 5 is a view showing a relationship between an image formed on a sheet and a drum, FIG. 6 is a view showing input / output of DRAM, and FIG. 7 is a paper. FIG. 8 is a diagram showing the configuration of a binding device, FIG. 8 is a diagram showing the configuration of a paper folding device, FIG. 9 is a diagram showing the configuration of a punching device, FIG. 10 is a diagram showing an operation section for image recording, and FIG. The figure shows the page order when two images are recorded on both sides of one sheet. (A) shows the left binding and (b) shows the center binding. Fig. 12 (1)
~ (5) is a flow chart showing the operation in the small size recording mode, Fig. 13 is a diagram showing a sheet bound and punched sheet, and Fig. 14 is a relation between the image formed on the sheet and the drum and the sheet binding device. FIG. 15, FIG. 15 is a view showing the relationship between the binding margin positions on the left-binding and right-binding sheets, and FIG. 16 is a diagram showing the relationship between the binding margin positions of the left-binding original and the recorded images, FIG. Is a diagram showing the relationship between the binding margin position of the right-edge binding document and the printed image,
The figure shows the page order for double-sided recording on a small size sheet.
FIG. 19 is a diagram showing the relationship between the binding margin positions of a single-sided original without a binding margin and a recorded image, FIG. 20 is a diagram showing the relationship between the binding margin positions of a single-sided original with a binding margin, and FIG. 21 is FIG. 23 shows the case where the binding margin position of the double-sided document and the binding margin position of the recorded image are the same, FIG. 22 shows the binding margin position of the double-sided document and the binding margin position of the recorded image are different, FIG. 23 (1) ~ (9) is a flow chart showing the operation in the large size recording mode, Fig. 24 (a) is a diagram showing a state where two images are recorded on one side of a large size sheet, and Fig. 24 (b) is a small size Figures showing one image on each side of the sheet, Figures 25 and 26 show the page order when two images are recorded on one side of a large size sheet, and Figure 27 shows uniform size in the first mode. Fig. 28 shows the page order of recorded images in mode, Fig. 28 shows the first
FIG. 29 is a diagram showing the page order of the recorded images in the size mixed mode in the mode, FIG. 29 is a diagram showing the page order of the recorded images in the size unified mode in the second mode, and FIG. 30 is the size mixed in the second mode. Fig. 31 is a diagram showing the page order of the recorded images in the mode, Fig. 31 is a diagram showing the page order of the recorded images due to the difference in the binding capacity, and Fig. 32 is an operation when dividing the recorded images into a plurality of bundles. Float Chart, No.
FIG. 33 is a diagram showing a page order of recorded images in the first mode of right binding. In addition, 12 is a magneto-optical disk device, 14 is a recording device, 16 is a paper folding device, 18 is a paper binding device, 20 is a punching device, 26 is a control circuit, 28 is DRAM, 202-204 is a paper feed section, and 214 is Intermediate tray, 408 is a single-sided mode selection key, 410 is a double-sided mode selection key, 412 and 414 are image layout number selection (large size recording, small size recording) key, 416 is a first mode selection key, 418
Is a second mode selection key, 420 is a size uniform mode selection key, 422 is a size mixing mode selection key, and 432 is a binding direction selection key.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masafumi Wataya 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Yoshihiko Hirose 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Incorporated (72) Inventor Yasuo Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (56) Reference JP-A-59-172356 (JP, A)

Claims (2)

[Claims] 1. An image forming apparatus for reading desired image information from a storage medium storing a plurality of image information and forming an image on a recording material, and input means for inputting information for designating desired image information. Reading means for reading desired image information from the storage medium based on the information inputted from the input means, image forming means for forming image information on the recording material by the image information read by the reading means, A stapling means for stapling a plurality of recording materials image-formed by the image forming means, and a page of image information to be read from the storage medium according to the recognition result by recognizing the acting direction of the stapling means on the front and back sides of the recording material. An image forming apparatus comprising: a control unit that controls the reading unit so as to change the order. 2. The recording material further comprises a conveying means for inverting the recording material and conveying the recording material, and the control means reverses the direction of the recording material according to the recognition result. The image forming apparatus according to claim (1), characterized in that the conveying means is controlled.