JP3469381B2 - Bookbinding document image forming device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding original image forming apparatus.

[0002]

2. Description of the Related Art Conventionally, reading means for reading an image of a spread book binding original placed with a central binding portion as a reference from one page end of the bookbinding original spread page, and one of the bookbinding original spread pages by the reading means. Reading range calculation means for calculating the image reading range of the bookbinding original by detecting the page edge portion, image forming means for outputting the image data read by the reading means as a visible image on the transfer paper, and right and left of the bookbinding original. Independent page mode, which divides two-page spreads into individual pages of transfer paper, two-page spread mode that copies the left and right double-page spreads of a bookbinding original as it is on one side of the transfer paper, and manual feed for feeding misfed paper A bookbinding original image forming apparatus including a paper feeding unit has been developed.

[0003]

By the way, in this type of bookbinding original image forming apparatus, when the double-page spread mode is made to function and the left and right double-page spreads of the bookbinding original are directly copied on one side of the transfer paper, the main scanning is performed. When a long horizontal feed transfer sheet is selected and fed, or when the independent page mode is activated and the left and right double-page spread pages of the bookbinding document are divided into individual pages and copied onto a single transfer sheet. In addition, when a vertically-fed transfer sheet that is long in the sub-scanning direction is selected and fed, both will result in a miscopy.

Further, as is well known, many binding originals are of various irregular sizes and small sizes, and transfer papers corresponding to these various sizes are preliminarily mounted as an attached paper feed cassette. It is almost impossible to keep. Therefore, in this type of device, paper is often fed manually. However, since the conventional bookbinding original image forming apparatus of this type does not have a manual feed size selection key for selecting or inputting the size of the manual feed paper, it is easy to make a miscopy due to a mistake in selecting the paper size during manual feed. It was

[0005]

In order to solve the above-mentioned problems, the present invention makes it possible to select only vertically-transferred transfer paper in the spread mode and only horizontally-transferred transfer paper in the independent page mode. Further, when a transfer sheet other than the above-mentioned selectable transfer sheets is selected, a warning is displayed. Further, when a manual sheet feeding means for feeding a manually fed sheet is used, it is possible to select either of the above-described vertical feed and horizontal feed.

Further, the manual sheet size selection key for selecting or inputting the size of the manual sheet is provided. Also, in the bookbinding original mode, the size of the manual feed paper is selected or input so that copying can be performed. Also, when the manual feed size selection key is pressed, a standard size paper is first selected, and an irregular size is input later. In addition, when the manual feed size selection key is pressed, vertically-fed paper is selected in the spread mode and horizontally-fed paper in the independent page mode. As a result, it is possible to prevent a wrong size of transfer paper or manual paper from being fed and reduce miscopy.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows an example of a bookbinding original image forming apparatus in which the present invention is implemented. This bookbinding original image forming apparatus is a bookbinding original / sheet original image reading apparatus (TPS: Tur).
The printer unit 500 outputs an image read by an nthe page scanner) with an electrophotographic printer, and includes a scanner unit 500 for reading a document image and a printer 501 for forming an image. The scanner unit 500 scans a document. It has a scanning unit 200 for reading the image and turning the page.

The scanning unit 200 performs an image reading plate (SBU) 101 having a CCD (charge coupled device) for reading an original image, and processing an analog image signal from the image reading plate 101 to A / D conversion. VP
U (Video Processing Unit) 1
02, a fluorescent lamp for illuminating a document and its inverter power source, a carriage 502 which relays the signal lines of the load system in the scanning unit 200 such as a heater, a thermistor, a fan, a solenoid and the wiring of the power source line. The carriage 502 and the VPU 102 are independent flexible cables, each of which has an IPU (Image Processing Night).
A unit (image processing apparatus) 103 is connected.

The IPU 103 is attachable / detachable by a connector and includes a frame memory 104 composed of a DRAM module for storing a read image signal.
A microcomputer therein controls loads such as a stepping motor for scanning the scanning unit 200 and a document table driving DC motor via a motor driving circuit 503, and also drives a sensor.

The printer 501 includes a main control board 107 including a main control section (system control section) for controlling copy mode, fetching key signals from the operation section 99, and display control, and a sequence control section for controlling copy timing. The main control unit, the IPU 103, the sequence control unit,
Each microcomputer of the operation unit 99 transmits and receives commands by serial communication. The main control plate 107 controls the input of sensors related to the image formation of the printer 501, the motor, the solenoid, the clutch, and the like to perform the sequence control of image formation.

FIG. 2 shows a data processing flow block of this apparatus. This device includes a TPS image reading unit,
The image data processing unit and the image forming unit are roughly divided. The image reading plate 101 arranged at the right end of the scanning unit of the TPS has a CCD. The VPU 102 is
A drive signal is supplied to the CCD based on the reference signal from the IPU 103, and the analog image signal from the image reading plate (reading sensor) 101 is corrected to digital conversion to obtain 8-bit read image data for each dot.

Then, the VPU 102 has each dot 8
The bit read image data is synchronized with the clock and the gate signal in the main scanning direction, and IP is applied at a speed of about 7.5 MHz.
The data is output to the U 103, and the IPU 103 performs processing such as scaling of image data from the VPU 102 and high image quality processing of electronic photography. The IPU 103 performs gradation processing including γ correction of the image data in the final processing of the image data, converts the image data into video data of 4 bits for each dot suitable for writing, and processes the image data after the processing into the frame memory 104.
Accumulate in.

In this apparatus, the reading speed of the bookbinding original is 9
0 mm / sec. , Sheet original reading scanning speed 90
mm / sec. , Printer 501 image forming speed 180mm
/ Sec. As described above, there is a difference between the reading scanning speed and the image forming speed, and the A3 size 1 is used for the speed buffer.
A frame memory 104 for pages is used. Further, since the TPS comes into contact with the bookbinding original and scans it to read the frame memory 104, the image data is repeatedly read a plurality of times during the repeat copy, which is effective for protecting the original during the repeat copy. Is.
Further, in this apparatus, since the images on the left and right pages of the bookbinding document are independently printed, the images on the left and right pages can be divided and output using the frame memory 104 in one scan reading during continuous page scanning. TPS is a laser printer 5
No synchronous scanning with 01 image writing or rerunning is required.

Further, due to the speed correspondence of the IPU 103, the frame memory 104 having a 4-bit dot structure is used for the IPU 1
By placing the image data after the image processing by the IPU 103 in the frame memory 104, the capacity of the frame memory 104 is halved for the read image data of 8 bits for each dot. The capacity of the frame memory 104 is 400 dpi and is A
It is 128 Mbit for one page of 3 sizes. IPU103
Image data is input from the frame memory 104 to the frame memory 104 in parallel for two dots of the image data, and about 3.8
Sequentially at MHz speed. On the other hand, the frame memory 10
As for the image data in 4, the same two dots of the image data are output in parallel, and the IPU1 is output at a speed of about 7.5 MHz.
The clock signals are sent to the main control board 107 sequentially in synchronism with the clock signal sent from 03 and the gate signals in the main scanning direction and the sub scanning direction.

The main control board 107 is a frame memory 1
The image data output from 04 at a high speed in accordance with the image forming speed of the laser printer 501 is converted into serial image data of about 15 MHz, and a FIFO (First In Fi
rst Out) memory to further speed up in the main scanning direction,
It is synchronized with a write clock of about 18 MHz. The 4-bit image data of each dot is pulse-width modulated by the modulator to become light emission time data, which is transmitted to the laser (LD) controller as PWM data in synchronization with the write clock. Based on the PWM data, the LD controller causes the LD 105 of the electrophotographic laser printer 501 to emit light via the LD driver to expose and scan the photoconductor to form an image.

The IPU 103 is a scanning unit 2 of the TPS.
00 scanning control is also performed, and when the sheet document image is read and the bookbinding document image is read, the scanner motor 106 including a stepping motor for scanning the scanning unit 200 is driven to move the scanning unit 200 to a scanning speed 90.
mm / sec. Scans at a constant speed, and zooms from 67% to 141%, including zoom from 1.41 to 0.6
The scanning unit 200 scans at a linear velocity of 7 times.

Further, the scanner motor 106 is 120 mm / sec. At the time of returning to return the scanning unit 200 to the scanning start position and at the time of turning the pages of the bookbinding document. The scanning unit 200 is scanned at a speed of. Further, the IPU 103 is provided with a general-purpose SCSI interface 98 for transferring the read image data to another system device such as a printer or a workstation, and the main control board 107 is provided with the operation unit 9.
The key signal from 9 is input and the signal is output to the operation unit 99.

The bookbinding document edge image detection circuit arranged in the IPU 103 samples the pixel data before the image scaling processing in the main scanning direction in the IPU 103 and detects the edge of the binding document from the pixel data. The bookbinding document edge image detection circuit detects the start and end of the binding document edge detection by IP.
It is instructed by the microcomputer in U103.
The microcomputer in the IPU 103 manages the bookbinding document edge detection in the sub-scanning direction of the bookbinding document edge image detection circuit according to the scanning position of the scanning unit 200, and refers to the pixel counter in the main scanning direction to bind the bookbinding document edge image. It manages the detection of the end portion of the bookbinding document in the main scanning direction of the detection circuit. And IP
The microcomputer in U103 calculates the page suction position and the main scanning direction image range of the bookbinding original from the edge position of the bookbinding original detected by the bookbinding original edge image detection circuit.

3 (a) and 3 (b) show the whole and a part of the operation section 99 in the present apparatus, and FIG. 4 shows the original manuscript basic operation panel of the operation section 99. This original manuscript basic operation panel
It is arranged on the left side of the operation unit 99, and is a part for performing an essential input when copying the original document. As the input procedure using the basic operation panel of this document, the operation keys 60 are sequentially operated from the left side.
1, 628, 634, 618, 631 are operated to input, select the original reading mode, copy page setting and additional page setting, copy format, and select the left and right pages of the copy start page in the independent page mode. To do. As a result, the basic settings of the original document reading mode are completed, and the copying is ready to start.
FIG. 5 shows the operation panel section of the behind. This is a behind-cover that can be opened and closed by arranging common display functions such as sorting, double-sided copying, zooming, etc. for sheet and book originals, and an operation display section for processing and selecting functions for book originals such as deletion and movement. Is configured.

More specifically, the operation section 99 operates an image reference designation key 609 for designating an image reference mode at the time of copying the original document.
And light emitting diodes 610 and 611 for displaying the state
Is equipped with. The image reference position includes the center of the sheet, the left edge of the sheet (left alignment), and the right edge of the sheet (right alignment). By pressing the image reference designation key 609, the image reference mode sets the image reference position to the center, left edge, or right edge of the transfer sheet. The mode is sequentially switched, and the light emitting diode 610 is turned on in the image reference mode in which the image reference position is left-aligned, and the light emitting diode 6 is turned on.
Reference numeral 11 turns on in the image reference mode in which the image reference position is right aligned. The basic image reference mode in which the image reference position is the center of the paper is not displayed.

The default image reference position such as power-on, mode clear, main document reading mode selection, etc. is preferentially selected as the center of the paper, so that the size detection error and the registration (position of the image formation itself) are performed. ) It prevents loss of an image when a shift occurs, and makes the image position shift amount inconspicuous without forming an image at the end. Further, the image reference position when the double-sided mode is selected is set to the left end or the right end of the paper and is preferentially selected, so that a margin for the binding margin is created as a standard.

Further, the operation section 99 selectively selects a sheet original reading mode for reading and copying a sheet original on the contact glass 206 and a main original reading mode for reading and copying a main original on the original table 1. A main original key 601 for setting is provided, and every time the main original key 601 is pressed, the sheet original reading mode and the main original reading mode are alternately set.

Also, a double-sided mode designation key 602 for designating a double-sided mode and light emitting diodes 603, 604, 6 for displaying the designated mode are provided in the operation section 99.
05 is equipped. Each time the double-sided selection key 602 is pressed, a single-sided document double-sided mode, a double-sided document double-sided mode, a double-sided document double-sided mode, and a single-sided copy mode are sequentially and repeatedly switched and designated, and each light-emitting diode for displaying the designated mode is displayed. 603, 604, and 605 are sequentially turned on.

As shown in FIG. 3, the operation section 99 is provided with operation keys such as an enter key 640, a print key 641 and a 10 key 642, and the display panel has a display section made of light emitting diodes for performing various displays. Furthermore, FIG.
As shown in FIG. 5, the operation unit 99 is provided with a key 606 for selectively setting the sort mode and the stack mode of the sorter 702, and light emitting diodes 607 and 608 for displaying the setting mode. Each time the key 606 is pressed, the sort mode and the stack mode are set alternately.

The operation section 99 also has a key 612 for setting a center erasing mode for erasing an image of a binding portion designated width with reference to the central portion of a two-page spread original, and a light emitting diode 613 for displaying the setting state. , A key 614 for setting an erasing mode for erasing an image having an outer frame specified width based on the original document, a light emitting diode 615 for displaying the setting state, and a surface for ejecting the paper with its image side facing up. It has a key 616 for setting the paper discharge mode and a light emitting diode 617 for displaying the setting state.

The operation unit 99 also has a copy format selection key 618 for selectively setting the independent page mode and the spread page mode, and light emitting diodes 619 and 620 for displaying the setting mode. Selection key 61
Each time 8 is pressed, the independent page mode and the spread page mode are set alternately. Further, the operation unit 99 is a page limiting key 621 for selectively setting a right page limited mode for copying only the right facing page and a left page limiting mode for copying only the left facing page, and a selection state thereof. Has a light-emitting diode 622, 623 for displaying, and every time the page limiting key 621 is pressed, the right page limiting mode, the left page limiting mode, and the page not limiting mode are sequentially set.

Further, the operation section 99 includes a key 624 for independently setting a magnification and a display section 625 including a light emitting diode for displaying the setting state, keys 626 and 627 for increasing and decreasing the zoom magnification, Copy page setting key 628 and a copy page number setting mode for specifying either a mode for setting the copy page number by setting the copy start page and the copy end page or a mode for setting the copy page number by the number of copies A display unit 632 including a light emitting diode 629, 630 for displaying, a copy start page setting key 631 for setting the copy start page of the double-page spread original document to the left page and the right page, and a light emitting diode for displaying the setting state. 633 and. The operation unit 99 further includes a page addition key 634 for adding a page to be copied of the main document, keys 635 and 636 for changing the center erasing width and the frame erasing width of the main document, and the main document. Has a key 637 for changing the setting of the copy image position (moving amount) and keys 638, 639 for manually inputting the document position. Input and confirmation are performed with the ten keys 642 and the enter key 640.

6 and 7 show the copy operation timing in the main document reading mode of this apparatus. 6 and 7 show the case where the end portion of the original document is detected by the page storage position in the middle of the continuous copy mode. In FIGS. 6 and 7, 2
Pages 3 and 4, and pages 4 and 5 form the double-page spread of this manuscript. Further, the read signal memory R of the frame memory 104
The reference symbols RP and LP represent the case where the read image data is for the right page (RP) and the left page (LP), respectively. Further, the page size of the main document in each mode is A4 size, two spread pages of the main document are continuously read by one scanning of the scanning unit 200, and the read image data is stored in the frame memory 104 for A3 size. The laser printer 501 stores the read data and reads the image data from the frame memory 104 according to each output mode.
Image is formed by and recorded on transfer paper.

FIG. 6 shows a case of a one-to-one copy mode in which an image of a two-page spread original document is output on an A3 size transfer sheet and a copy of the original document is copied. FIG. 7 shows the case of the one-to-one copy mode in which the images on the left and right pages of the original document are separately output for A4 size transfer paper for each independent page, and one copy is made on the original document. .

When the print key 641 for instructing the start of copying on the operation panel 99 is turned on at the operation timing of the first original document reading mode, the microcomputer in the IPU 103 causes the scanner motor 106 to scan the scanning unit 200. The scanning unit 200 located in the central portion is rotated in the reverse direction to move in the reading start direction. When the scanning unit 200 moves to the reading start position of the left home position, the microcomputer in the IPU 103 drives the scanner motor 106 in the normal rotation direction to turn on both the fluorescent lamps 201 and 202 and perform scanning for reading the original. Let it start.

The microcomputer in the IPU 103 processes the image data from the VPU 102 as read image data from the end point of the left page of the original document and generates an effective image area signal SFGATE in the reading sub-scanning direction. Further, the microcomputer in the IPU 103 operates the data write signal memory W of the frame memory 104 by the effective image area signal SFGATE to control the data write range. The microcomputer in the IPU 103 recognizes the center point of the binding portion of the double-page spread original from the control address of the scanner motor 106, and reads this at the reference position of the second image in the independent page output mode or the read image in the double-page output mode. It is used when, for example, is formed in the center of the transfer paper.

When the scanning unit 200 reaches the right page edge of the double-spread original document, the microcomputer in the IPU 103 starts detecting the right page edge of the original document, and calculates the page suction position when turning the page. When the reading scanning of the scanning unit 200 is completed, the scanning unit 200 enters the backward page-turning scanning, the storage position of the page-turning page is detected for the first time, and the printer 501 is set after the image effective range is determined by the page storage position. Image formation is started. Further, after the second time, the printer 501 starts image formation immediately after the end of scanning and scanning in the image effective range calculated from the previously detected page storage position. The microcomputer in the IPU 103 uses the effective image area signal PFGA on the printer 501 side in the sub-scanning direction.
The data read signal memory R of the frame memory 104 is operated by TE to output image data in synchronization with the printer 501. Further, when the page is turned, the page sensor 214 repeatedly detects the page edge of the two-page spread original. By repeating the above steps, the pages of the manuscript are automatically turned, and double-page spreads of the manuscript are copied.

FIG. 7 shows the case of the one-to-one copy mode in which an image is output for each independent page of a bookbinding original. In this case, in the reading mode, the operation is performed at the same timing as in the case of FIG. 6, and when the page is turned, the data read signal memory R of the frame memory 104 is stored by the two PFGATEs in accordance with the transfer paper continuously conveyed by the printer 501. The image data for each page of the bookbinding document is operated and output. Since the address counter of the frame memory 104 is masked by PFGATE and stopped, the data of the second image on the right page linked to the image on the left page of the bookbinding document is changed to the second P.
The FGATE signal causes the printer 501 to read with a transfer sheet interval.

In this apparatus, the page sensor 214 detects the page edge of the bookbinding original during the page-turning scanning of the bookbinding original, and the suction and separation operation positions for the page edge of the bookbinding original, which change due to repeated page-turning, are determined. To be done. That is, the page end on the scanning end side is detected from the data of the page storage position to determine the page suction rising position at the time of page turning scanning, and the same amount of pages is always sucked and separated.

Next, the copy format mode will be described.

The copy format mode is effective in the bookbinding original reading mode and includes (1) independent page mode and (2) spread page mode. In this apparatus, priority is given to the copy format modes, and the first setting is the (1) independent page mode in which one page of the bookbinding original is formed on one transfer sheet, which is frequently used. When the power is turned on or the bookbinding original reading mode is selected, the copy format mode is initially set to (1) independent page mode.

As shown in the copy format selection flow of FIG. 8, the main controller sets 1 to the copy format counter when the power is turned on and increments the copy format counter each time the copy format selection key 618 is pressed to copy the copy format counter. When is greater than 3, the copy format counter is set to 1. And the main controller is
When the copy format counter is 1, the independent page mode is set and only the light emitting diode 619 is turned on. When the copy format counter is 2, the spread page mode is set and only the light emitting diode 620 is turned on.

When the independent page mode is designated, the main controller reads the read page image of the spread bookbinding original page by page from the frame memory 104 as shown in FIG.
Form on the page transfer paper. For the image matching, the page image position is calculated from the page edge detection as described above, and the page image position is arranged on the transfer paper. On the other hand, when the double-page spread mode is designated, the main controller continuously reads out the read image information of both pages of the double-page spread original from the frame memory 104, and outputs 1
Form on the page transfer paper.

Generally, books and books are bound with double-sided printed matter, and there are also bound with double-sided originals such as stapler stoppers for office documents and files. In this device, which scans a bookbinding original and forms an image of the read page on the transfer paper, and turns the pages of the bookbinding original, in this device, an independent page mode in which an image for each page of the bookbinding original is formed on one sheet of paper, and a bookbinding original spread By providing the double-page spread mode in which the images of both pages are formed on one page of paper, it is possible to obtain a copy having a different image forming form. Particularly, the independent page mode has the same page structure as the bookbinding original. In the double-page spread mode, the number of copies is halved,
An image across a double-page spread such as gravure is formed as a continuous image.

Further, the present apparatus reads both page images of the spread bookbinding original by one scanning, writes the read image data in the frame memory 104, divides the read image data into an image range for each page, and the frame memory is divided. The image data is read out from the page 104 to form an image on one page of the sheet, and the read image data is read out from the frame memory 104 continuously on both pages to form the images of both pages of the bookbinding document on the page 1 and the image is formed regardless of the image forming mode. The reading is controlled to be the same in one unidirectional scan.

Next, the image memory range will be described.

This apparatus is provided with the frame memory 104 as an image memory for storing the image data as described above, and the image memory 104 is used for the following purposes.

First, the image memory 104 serves as a speed buffer for reading an original and forming an image, and performs stability of contact reading by the scanning unit 200 of a bookbinding original and protection of the original. Secondly, the image memory 104 is used for protecting the original and improving the productivity of copying by repeating copying by reading the original once. Thirdly, the image memory 104 is used as a copy page layout for determining the page position for the first time and cutting out an independent page.

As shown in FIG. 9, the range in which the image data of the bookbinding original image of the image memory 104 is stored is centered around the binding portion of the bookbinding original document, and when the copy magnification is equal to or less than 1 ×, the image of the maximum A3 size of the bookbinding original is opened. It is an area for storing data. In the image memory 104, the storage of the image data from the VPU 102 is started just before the area, and the IPU 103 starts to store the surplus portion of the image memory 104 in the right direction. The image memory 104 is 16 MByte (12
8 Mbit: To be exact, 134, 217, 728 bit)
4 after the image processing from the VPU 102.
Image data of bit / dot is stored in multivalue. Therefore, the image data storage range of the image memory 104 is slightly larger than the A3 size.

Next, the copy mode and function will be described.

The copy mode, input keys and their functions of this apparatus will be described below with reference to FIGS.

1. Bookbinding manuscript operation unit basic mode (1) Scan selection ○ Sheet manuscript (default) (Function) The original document on the upper contact glass 206 is read to read the sheet manuscript. Specify when copying the cover (hard cover) of a sheet document or bookbinding document. The sheet original mode is right alignment (reading scale 207 left back corner), and it is not possible to use it for scaling and double-sided printing with the same processing function as the binding original.

(Operation) It is automatically restored upon completion of copying the default or bookbinding original.

The lower side reading of the bookbinding original (function) performs image reading of the bookbinding original and automatic page turning. Manual feed and interrupts are not allowed in this original reading mode.

(Operation) The bookbinding document reading mode is selected by pressing the bookbinding document key 601 to start the operation input of the bookbinding document. Read the sheet document with the binding platen set after pressing the binding document key 601 in the binding document reading mode or removing the binding document.
Return to take mode.

(2) Copy page setting start to end page (bookbinding original reading mode / default) (Function) The number of pages from the copy start page to the copy end page is calculated, and the difference page is copied.

(Operation) To set the number of pages to be copied, follow the guidance display: 1. Input the numerical value of the copy start page with the ten keys 642, 2. 2. Confirm the copy start page with the enter key 640, and 3. Enter the value of the copy end page with the numeric keypad 642,
4. The enter key 640 is used to confirm the copy end page.

Number of Pages (Function) Copying is repeated from the specified left and right pages of the bookbinding original for the specified number of pages. In this case, it is not necessary to input the copy start page to the copy end page. The binding manuscript has pages
When there is no page, it is used when the page is skipped.

(Operation) To set the number of pages to be copied, follow the guidance display: 1. Enter the value of the number of pages to be copied with the ten keys 642. The enter key 640 is used to confirm the number of pages to be copied.

* Normally, also in the double-page spread mode, one page of the bookbinding original is counted as one page, and in the page limited mode of only the right page or the left page, it is regarded as a single-sided original and the copied page is counted as one page. (3) Page addition setting Page addition (function) Specify up to three pages of the binding manuscript, skip pages, and copy only the specified page group continuously.
There is no limit to the number of skipped pages, but in the case of many pages it is efficient
May worsen. For originals in which the number of pages is changed and the pages are continuous, only the settings from the copy start page to the copy end page are valid for the copy page setting, and the left and right pages of the subsequent job are judged from the left and right pages of the first job. To do. The mode settings other than the copy start page to copy end page settings are the same for all jobs.

(Operation) After inputting the copy start page to the copy end page, the page addition key 634 is pressed and the copy start page to the copy end page of the next job is input according to the guidance display. By pressing the page addition key 634, the number of pages of each job can be confirmed and corrected.
Cancel.

(4) Copy format mode Independent page (binding document reading mode, default) (Function) Copy double-page spreads of a bookbinding manuscript separately for each page.

(Operation) By pressing the copy format key 618, one of the left and right spread pages is selected.

Spread Pages (Function) Both spread pages of the binding document are copied as they are on one side of the transfer paper. In the spread page mode, the copy start page is fixed to the left page. Transfer the first two pages of both pages
Both sides of the double-page spread to be formed on the front side and to form the second double-side spread pages on the back surface of the transfer paper are selected in the double-page spread original in the double-sided page mode in the double-page spread mode.

(Operation) One of the independent pages is selected by pressing the copy format key 618. (5) Input of copy start page Left page (function) Copying is started from the left page of the document (placement) as an independent page.

(Operation) In the independent page mode, the left page is selected by pressing the copy start page key 631.

Right page (Function) Starts copying from the right page of the original as an independent page.

(Operation) In the independent page mode, pressing the copy start page key 631 selects the right page.

* Specify even when each duplex mode is selected. In the duplex mode, the first and last pages are automatically ejected as blank pages by setting the copy start page and the number of pages. Even if the number of input pages is odd in the double-page mode, the last page is a copy of both pages, and the first and last half-page designations (half-side erasing) cannot be performed.

2. Behind mode (only for binding manuscript related mode) (1) Erase mode Center erasure (binding manuscript reading mode, default: Yes) (Function) Detects the position of the manuscript and designates the binding part based on the center of the spread bookbinding manuscript. The width image is erased by the central distribution. In case of independent page mode
The right edge and the left edge of the right page are designated by center erase.

(Operation) When the center erase key 635 is pressed, the erase of the binding portion is released.

Erasing frame (binding document reading mode, default: Yes) (Function) Detects the size and position of the document and displays the image of the specified width inside the outer frame (top, bottom, left and right) based on the binding document. to erase. Even if you cancel the frame deletion, the
The image is usually erased automatically and a large black frame is not formed around the transfer paper. (Operation) Pressing the frame deletion key 636 cancels the deletion of the spread outer frame of the bookbinding document.
To do. To cancel the upper, lower, left and right erase settings independently, set the erase width setting value to "0".

* Because of the document position reference, the upper part: the erase function cannot be used in the sheet reading mode.

(2) Movement mode ○ Center (bookbinding original reading mode / default) (Function) Copies to the center of the transfer paper in the sub-scanning direction based on the transfer paper. The image shift in the sub-scanning direction detects the page length of the bookbinding document and arranges it on the transfer paper. The shrinkage due to the binding part of the bookbinding original and the surplus due to the irregular size original are distributed to both ends of the transfer paper to prevent image loss and avoid the effect of registration error.

(Operation) By pressing the move key 609, the left-right alignment is canceled.

Right alignment (function) Copying is performed at the set movement amount position on the right side of the transfer sheet in the sub-scanning direction with reference to the transfer sheet. This is effective when providing a binding margin, and the binding margin is created on the left side of the transfer paper by the shrinkage of the binding section. In the sheet document reading mode, right alignment is fixed and the leading edge is the same as in the conventional apparatus. The binding margin creation in the sheet document reading mode is supported in the SP (service program) mode as in the conventional apparatus.

(Operation) The right key is selected by pressing the move key 609.

Left alignment (function) Copying is performed at the set movement amount position on the left side of the transfer sheet in the sub scanning direction with reference to the transfer sheet. When providing a binding margin that is equal to or greater than the shrinkage of the binding section, and when providing a binding margin with a fixed width, the left alignment is specified together with the movement amount change. In the case of a right binding original (vertical binding original), a binding margin is created on the right side of the transfer paper.

(Operation) The left key is selected by pressing the move key 609.

* Even when the double-page spread is output, it is also effective, and the double-page spread original is arranged on the transfer paper depending on the length of both pages. When aligning right and left in double-sided mode, align the same on the front and back sides, align the right edge when aligning the copy bundle from the front, and align the right edge when aligning left. (3) Page limited mode ○ Both pages (binding document reading mode, default) (Function) Copy both left and right pages. Most bookbinding documents are printed on both sides, so page limits are not used.

(Operation) By pressing the page limit key 621,
Remove page limitation.

Right page (function) Copies only the right page of a spread binding document. Used for stapling and one-sided originals such as files.

(Operation) By pressing the page limit key 621,
Select the right page.

Left page (function) Copy only the left page of the spread binding document. Used for single-sided right-binding (vertical binding manuscript).

(Operation) By pressing the page limit key 621,
Select the left page.

* The page-only mode is valid in the independent page mode, and the designation of the copy start page left and right is invalid.

(4) Double-sided mode ○ Single-sided copying (default) (Function) The original image is copied onto one side of the transfer paper. The binding original reading mode and the sheet original reading mode are also effective.

(Operation) Pressing the double-sided key 602 releases the double-sided mode.

Single Sided Original (Function) Sheet original image is copied on both sides of the transfer paper. The binding margin distribution in the double-sided mode corresponds to the SP mode as in the conventional device. Only the page limited mode (single-sided bookbinding original) is selected for the binding original, and the double-sided mode of the single-sided original is selected.

(Operation) By pressing the double-sided key 602, the double-sided mode of the single-sided original is selected. For sheet originals, the print key 641 is pressed for each original set, as in a normal copying machine.

Double-sided original (function) A double-sided copy is formed on the front and back sides of a bookbinding original. If the copy start page is the spread left page and the copy end page is the spread right page, one side of the first and last transfer paper is white.
It becomes paper.

High-speed double-sided (double-sided copy productivity about twice that of the conventional machine) Only in the 1-to-1 double-sided mode, the output page order is switched using the frame memory, and the image on the right page is displayed on the first transfer paper surface. Form it and convey it to the double-sided tray, turn the pages, form the image on the right page on the surface of the second transfer paper, convey it to the double-sided tray, re-feed the first transfer paper, and reverse The image on the left page is formed and discharged. When the number of copies is "2" or more, the transfer sheets are once stacked on the double-sided tray, and the high-speed double-sided mode is not performed.

(Operation) By pressing the double-sided key 602 in the bookbinding original reading mode, the double-sided mode of the double-sided original is selected.

Spread Document (Function) The spread left and right pages of the binding document are copied on the front and back sides of the transfer paper. When the copy start page and copy end page are spread left pages, one side of the first and last transfer sheets will be blank.
. The double-sided high-speed mode is not executed because it is necessary to access each page of the frame memory. Spread 2
For double-sided copying of pages, select the double-sided mode of the double-page spread original in the double-page spread mode.

(Operation) In the bookbinding original reading mode, pressing the double-sided key 602 selects the double-sided opening mode of the spread original.

* The binding margin in the double-sided mode for bookbinding originals is right-aligned and left-aligned, and the front and back sides are unidirectional.

(5) Paper discharge selection ○ Back surface paper discharge mode (bookbinding original reading mode / default) (Function) Since the binding original is read in page order, during normal single-sided copying, the copy is reversed and the image side is face down. Eject the paper. Double-sided mode sets the back-side ejection mode
Then, the transfer paper is discharged in page order without being inverted. This can be specified even when the sheet original reading mode is selected.

(Operation) Pressing the front surface ejection key 616 releases the front surface ejection mode.

Surface discharge mode (sheet original reading mode / default) (Function) The sheet discharge mode is standard for sheet originals. Specify a binding manuscript for a few manuscripts or when checking images,
Eject the transfer paper without inverting it.

(Operation) By pressing the front surface discharge key 616, the front surface discharge mode is selected.

(6) Erase width change mode Center erase mode (shipping default: 10 mm) (Function) The center erase width is set by the binding portion allocation based on the original document.

(Operation) By pressing the center delete key 635, 1. Enter a value for the erase width with the numeric keypad 642, and 2. The enter key 640 confirms it. The erase width is set in units of 1 mm from 0 mm to 40 mm. In the independent page mode, the binding portion erasing width of each page is half the set value.

Frame erasing mode (shipping default: top / bottom / left / right 5 mm) (Function) Sets the top / bottom / left / right erasing width of the page based on the original.

(Operation) By pressing the frame deletion key 636,
Follow the guidance display 1. Enter a value for the erase width with the numeric keypad 642 or move to the next with the enter key 640.
2. With the enter key 640, the confirmation is repeated in the order of up / down / left / right. 0mm to 30mm each
Set the erase width in units of 1 mm. Main run
For the image shift in the scanning direction, open the document within 25 mm from the front and set the binding document, and set the downward erasure width to a large value in accordance with the shift width.

(7) Movement amount change mode Movement amount (default: 0 mm) (Function) Sets the image shift amount in the sub-scanning direction in the right alignment mode and the left alignment mode. Used to create proper binding margins and margins on the right and left edges of the transfer paper. The set amount of movement is the same for both right and left alignment modes.

(Operation) When the movement amount change key 637 is pressed, 1. Input the value of the movement amount with the ten keys 642, and 2. The enter key 640 confirms it. The position is set in units of 1 mm from 0 mm to 20 mm. (8) Original position manual input upper end (function) Inputs the position of the upper end of the page of the spread bookbinding original as a scale value. The upper side of the image is erased at the designated position and the upper erase amount in the same book. Top edge detection error
Manually enter the top edge position of the page. When the top edge of the page is not detected, enter the top edge position setting mode on the guidance display to warn.

(Operation) By pressing the upper end key 638, 1. Input the numerical value of the upper end position with the ten keys 642, and 2. The enter key 640 confirms it. Check the position of the upper edge of the page of the binding document, and enter the position in units of 0 to 20 as the upper edge scale value.

Right edge (function) The right edge position of the uppermost page of the spread bookbinding original is input as a scale value. Calculate the page suction and lift position of the first page turning from the designated position. Right edge of page
When no page is detected or page turning error occurs, manually input the right end position of the page and start continuous operation.

(Operation) When the right end key 639 is pressed, 1. Enter the value at the right end position using the numeric keypad 642, and 2. The enter key 640 confirms it. Check the position of the right edge of the page of the binding document, and enter the position in 1 unit from 0 to 20 in the right edge scale value.

3. Copy mode (conventional copy function) (1) Sort / Stack (2) Paper selection (3) Numeric keypad / decimal point key (4) Program (5) Mode clear / Remaining heat (6) Clear / Stop (7) Number confirmation / Enter (8) Interrupt (9) Start 4. Copy mode (copy specification change function) (1) Independent variable magnification Independent variable magnification range is 67% to 1 in both main scanning direction and sub scanning direction.
Within the range of 41%, 1 key in the numeric keypad 642 is used to set at 1% pitch according to the guidance display, and the horizontal and vertical magnifications are input by the guidance display.

(2) Zoom The zoom range is set at 1% pitch in the range of 67% to 141%.

(3) Reduction / enlargement / fixed-size fixed copying magnifications 71, 82, 87, 93, 11
5, 122, 141%.

(4) Image data stored in the frame memory of character / photograph / character photograph multi-valued version (128 MB) is multivalued by switching between character / photograph / character photograph mode and binary version ( 32M
The image data stored in the frame memory B) is character /
Facsimile by switching between photo / text mode
Binary pseudo intermediate processing of OD is performed.

(5) Automatic Density / Copy Density In order to prevent show-through, the copy density in the bookbinding original reading mode is 1 in comparison with the sheet original reading mode equivalent to that of the current machine.
It shifts to the low density side by the notch.

Next, the operation of the TPS system will be described.

A. TPS operation mode (1) Reading mode Bookbinding original reading mode The mirror 222 is released, the lower fluorescent lamps 201 and 202 are turned on, the scanning unit 200 is scanned rightward after shading correction at the left home position, and the scanning unit 200 is scanned to the right to open a bookbinding original. Are read at once and the read image data is stored in the frame memory 104.

The sheet original reading mode mirror 222 is inserted in the optical path, and the upper fluorescent lamps 203, 20 are inserted.
4 is turned on, and after the shading correction is performed at the left home position, the scanning unit 200 is scanned to the right to read the sheet original, and the read image data is stored in the frame memory 1.
Store in 04.

(2) Return Mode In the page-turning bookbinding original reading mode, a high-voltage bias is applied to the page-turning belt 208, and the scanning unit 200 is scanned leftward to reach the right end portion of the spread bookbinding original. At that time, the belt is stopped, the turning belt 208 is raised, and 0.5 sec. After that, the scanning unit 200 is scanned leftward.

From the image read by the reading sensor (CCD), the right end portion and the upper end portion of the spread bookbinding original are detected, and the initial page suction position and the image effective range in the main scanning direction are calculated. Further, when the page is turned, the position of the right end portion and the left end portion of the double-page spread document is detected by the page sensor 214 of the page conveying path, and the image effective range in the sub-scanning direction is calculated.

Scanning Unit In the return sheet original reading mode, the scanning unit 200 is scanned leftward.

(3) Homing Mode When the power source is normally turned on, the original table 1 is lowered and retracted from the scanning unit 200. The scanning unit 200 is scanned and set at the left home position to prepare for reading a sheet document.

(4) Pre-scanning mode The scanning unit 200 is scanned to the left home position to prepare for shading correction and reading.

(5) Post-scanning mode After the return operation is completed, the scanning unit 200 is scanned and set at the central home position, and the document table is lowered and retracted from the scanning unit 200 so that the binding document can be taken out.

FIG. 10 shows the structure of the scanner unit of this TPS. In this TPS, a sheet original placing table composed of a contact glass 206 and a scale 207 are arranged on the upper part of the apparatus body.
A document such as a sheet is placed on the upper side and a pressure plate (not shown) is placed thereon. The original on the contact glass 206 is scanned and read by the scanning unit 200. The upper half of the main body of the TPS device is a scanner unit, and the scanning unit 200 runs in the left-right direction in FIG. 10 inside the scanner unit to scan a document.

In FIG. 10, the turning belt 208 is
It is stretched between the turning belt drive roller 223 and the turning roller 224, and is rotationally driven by the turning belt drive roller 223.

Further, a high voltage of ± 2 to 4 kV is applied to the charging roller 225 from an AC power source at a predetermined timing via a changeover switch (not shown). While the scanning unit 200 travels and the turning belt 208 is driven, the changeover switch is turned on at a predetermined timing, and a high voltage ± 2 to 4 kV of an AC voltage matching the frequency of the pulse generator is applied to the charging roller 225 by the high voltage power source. Then, an alternating electric field is generated on the surface of the turning belt 208 by the charging roller 225, and the turning belt 20 is operated by the action of this alternating electric field.
A suction force for sucking the top page of the book document BO is generated on the surface of 8. When the reading scanning of the document is started, the scanning unit 200, which was at the left end home position of the scanner unit, starts traveling rightward. When the document reading position below the platen glass 205 of the scanning unit 200 reaches the left page of the book document BO, the scanning unit 200 starts the reading operation of the book document BO and moves the document surface of the book document BO from the left page to the right. Read it into pages. Here, the reading start position of the scanning unit 200 changes depending on the size (size) of the book document BO.

In this way, the scanning unit 200 reads the document surface from the left page to the right page of the book document BO, and when the scanning unit 200 finishes reading to the edge of the spread right page of the book document BO, the scanning unit 200 The document scanning direction is reversed.

At this time, the changeover switch is turned on, and an alternating high voltage of a predetermined frequency is applied to the charging roller 225 through the changeover switch by the pulse generator and the high voltage power source, and a charge pattern is formed on the surface of the turning belt 208. To be done.

When the page turning of the book document BO is started, the charging pattern portion formed on the surface of the turning belt 208 overlaps the uppermost page of the book document BO prior to the page turning operation. Then, when the leading edge of the topmost page crosses the lower center of the turning belt 208, the turning belt 208 is tilted upward by the action of a solenoid (not shown). As a result, only the uppermost page of the book document BO is attracted onto the surface of the turning belt 208 by the attraction force due to the uneven electric field of the charge pattern formed on the surface of the turning belt 208, and the edge of the uppermost page is turned. Lifted with belt 208.

The top page 254 of the book document BO is turned up and the scanning unit 200 moves again toward the end home position, and the top page of the book document BO is placed on the right side of the scanning unit 200. The scanning unit 200 passes through between the pair of upper and lower page guides 227 and 228.
The tip side is sent to the right outer side of. At this time, the page sensor 21 attached to the upper side of the scanning unit 200
4 detects a document page sent to the outer right side of the scanning unit 200, and it is detected that the document page is normally turned.

Next, when the top page of the book original BO is turned up to the binding portion of the book original, the turning belt 208 returns to the original position. In this state, the scanning unit 200 is further moved toward the end home position, and the turned-up original page is pulled by the binding section of the book original and returns between the pair of page guides 227 and 228.
The book document BO is superposed on the left page and discharged from the scanning unit 200.

The manuscript pages turned up are the book manuscript BO
When all of them are superposed on the left page of the scanning unit 200,
The one-time image reading / page turning operation for the two-page spread original is completed. Here, when the image reading / page turning operation is repeatedly performed on the book original BO, or when only one of the image reading and page turning operations is repeatedly performed, the original page turned up as described above. Are simultaneously superposed on the left page of the book document BO, the movement direction of the scanning unit 200 is reversed, and the reciprocating operation of the scanning unit 200 is repeated in the shortest course with respect to the document surface of the book document. The scanning unit 200 may perform only the reading operation of the book document BO or only the page turning operation.

The turning of the original page electrostatically attracted on the turning belt 208 is performed by turning the turning belt 2 by a solenoid.
08 is rocked upward, and the page end portion attracted to the turning belt 208 is lifted to the scanning unit 200 side. At this time, the page sensor 214 detects whether the pages of the book document BO are turned. When the page detection by the page sensor 214 is not performed at a predetermined timing during page turning, the page turning operation is re-executed.

On the other hand, the mirror 222 of the reading optical system of the scanning unit 200 is driven by a mirror switching solenoid, and by moving the mirror switching solenoid on and off, the mirror 222 advances and retreats to the optical path. A general upper reading optical path such as the above is switched. As the light source for illuminating the original, two fluorescent lamps 201, 202, 203, and 204 (lamps) provided in the upper and lower reading portions of the scanning unit 200 are used, respectively.

When reading the sheet original S on the contact glass 2206, the mirror 222 advances into the optical path and the original on the contact glass 206 is fluorescent lamps 203, 20.
4 and the reflected light is reflected by the mirrors 222, 22.
Image reading plate 1 through 0, 221 and lens 216
An image is formed on the CCD on 01 and photoelectrically converted. When reading the book document BO, the mirror 222 is retracted from the optical path, the book document BO on the document table 1 illuminates the book document BO on the document table 1 through the platen glass 205, and the reflected light is reflected by the mirrors 219 and 220. , 221 and the lens 216, an image is formed on the CCD on the image reading plate 101 and photoelectrically converted.

Further, as shown in FIG. 10, the manuscript table unit in this apparatus is provided with one manuscript table 1 on each of the left and right sides of the center of the apparatus body.
Are movably supported by a link mechanism (not shown).

FIG. 11 shows an image forming section which is an image forming means of this apparatus. The image forming unit includes a printer main body 701 including a laser printer and a sorter 70 as a peripheral device.
2. A reversing unit 703 and a bank 705 having a double-sided unit and a large-volume sheet feeding tray 704.

In the printer body 701, an image bearing member made of a photoconductor, for example, a photoconductor drum 706 is rotated by a driving unit and uniformly charged by a charger, and thereafter, image exposure is performed by an exposing unit including the semiconductor laser 105. A document image is written to form an electrostatic latent image, and the electrostatic latent image is developed by a developing device to become a visible image. Also,
Paper is fed to the registration roller from a selected one of the paper feed trays 707 and 708 and the large-volume paper feed tray 704 as paper feeding means, or the paper is manually fed to the registration roller from the manual feed table 709. The fed sheet is sent out by the registration roller and is transferred by the transfer charger 710 as a transfer unit to the photosensitive drum 70.
The visible image of No. 6 is transferred to the upper surface, separated from the photoconductor drum 706 by a separating charger 711 as a separating unit, and then the visible image is fixed by a fixing device 712 and sent to the reversing unit 703. In addition, the photosensitive drum 7
In 06, the residual toner is removed by the cleaning device after the paper is separated.

In the reversing unit 703, in the normal mode, the paper from the fixing device 712 is stored in the upper paper discharge tray with the image surface facing upward. Further, in the sort mode, the paper from the fixing device 712 is discharged to the sorter 702 and sorted into each bin of the sorter 702. Further, in the double-sided copy mode, the paper on which the surface image is formed from the fixing device 712 is sent to the double-sided reversing unit 700 provided in the bank 705 in the vertical direction. The double-sided reversing unit 700 switches back the fed sheets and sends them to the double-sided tray 720 so that the image forming surface faces upward, and stacks them. The double-sided tray 720 re-feeds the stacked sheets to the registration rollers. This paper is sent out by the registration rollers, and after the image is transferred and fixed on the back surface in the same manner as described above, it is discharged by the reversing unit 703 to the sorter 702 or the paper discharge tray as a double-sided copy.

In the reverse mode, the paper from the fixing device 712 is once sent to the double-sided reverse section 700. The double-sided reversing unit 700 switches back the fed paper,
This sheet is conveyed to the upper side and discharged with the image forming surface facing downward. At this time, the bookbinding original is read in page order and the read images are formed on the sheet, so that the ejected sheet maintains the page order.

The apparatus comprises a scanner unit having an upper scanning unit 200 and a document table unit having a bookbinding document table 1 for pressing a spread bookbinding document on the lower side, and the bookbinding document table 1 is of a retractable type. , The binding document table 1 is pulled out to the front side of the apparatus, and the binding document is set on it. As shown in FIG. 12, a bookbinding original is set on the bookbinding original table 1 with the left end of the binding portion and the front side as a reference. Then, the front cover of the bookbinding document is fixed to the left document table and the back cover of the bookbinding document is fixed to the right document table to prevent displacement of the uppermost page due to shape displacement of the binding portion during continuous reading of the bookbinding document.
The procedure for setting the bound document is as follows. Pull out the platen unit and open the document support plate. The left cover of the binding document is clamped between the left document table and the document pressing plate with the left end and the front side of the binding portion as references. The right cover of the bound document is sandwiched between the right document table and the document holding plate. The bookbinding original reading start page is opened, the stopper pawls of the original pressing plate are hooked on the stopper pawls, the document table unit is set, and the bookbinding original table is raised to make the two-page spread upper page flat. In this apparatus, since the double-page spread original is set on the original platen 1 with the central front side reference as shown in FIG. 12, the left edge, the right edge, and the upper edge of the page differ depending on the size of the double-page open original. That is, the image leading edge position and the trailing edge position in the sub-scanning direction and the trailing edge position in the main scanning direction change.

As shown in FIG. 12, at the time of page-turning scanning after the image reading scanning of the bookbinding original, the edge detection of the bookbinding original is black as described above and outside the maximum size portion of the double-page binding original in the sub-scanning direction. Starting from the position of the outer frame of the platen,
Next, the black original plate portion is read, and the end portion is detected on the side of the bookbinding original document. In the edge detection of the bookbinding document edge image detection circuit, the read data of the specific pixel in the sub-scanning direction is continuously sampled, and that data is compared with a certain threshold value to determine the read image data. A position where a pixel larger than the threshold value is repeated a plurality of times is defined as a page end position in the sub-scanning direction of the bookbinding document. From the detected page edge position, the IPU 103 sucks pages for turning pages,
The rising position is calculated, the scanning unit 200 is scanned up to that position, and the scanning unit 200 is temporarily stopped. At that position, the bookbinding document edge image detection circuit similarly detects the edge of the bookbinding document in the main scanning direction as described above. .

The two-page spread original is set on the original table 1 with the central front side as a reference, and the page suction position, the rising position, that is, the image reading position is surely on the two-page spread original in the sub-scanning direction and corresponds to one line of the main scanning. The read image data is sampled. The read image data for one line starts from the position of the black outer frame of the document table on the back side of the maximum bookbinding document size on the document table 1, and then the image data of the spread bookbinding document on the black document table 1. Appears. The main scanning direction edge of the bookbinding original is detected by comparing continuous read image data in the main scanning direction with a certain threshold value, and the position where the read image data is larger than the threshold value by several pixels is bound. It is the page edge position of the document in the main scanning direction.
The IPU 103 detects the read image data from the main scanning direction,
The position of the edge portion of the bookbinding document is calculated in the arrow direction of FIG. 12 in both the sub-scanning direction. For example, when the spread size is B4, the left and right edge portions of the bookbinding document are about 182 mm in the sub scanning direction from the center set position and about 257 mm in the main scanning direction from the front end portion. The scanning unit 200 starts scanning from the left home position of the reading scanning start,
Image data read from a position several mm before the end position of the bookbinding document is stored in the memory 104, and the IPU 103 sets the end part of the bookbinding document as the start position of the effective image area in the main scanning direction and the sub-scanning direction when outputting image data. Give instructions.

In the page edge detection after the first page turn, the edge position of the uppermost page is accurately and stably detected by using the transmissive page sensor 214 which detects the page turned in the page turning conveyance. Since the cover of the bookbinding original is fixed to the original table 1 in this apparatus, there is little deviation when scanning the bookbinding original. In addition, a bound document tends to have little change in position due to turning one page. This apparatus uses a transmissive page sensor 214 as shown in FIG. 13 to detect the page turning. The page sensor 214 has a light emitting diode 214 as a light emitting element on the upper page guide 227.
a, a photodiode 214b is provided as a light receiving element below the lower page guide 228. The hole portions 2 are formed in the page guides 227 and 228 that form the page conveying path 418.
27a and 228a are provided, and the light emitting diode 214a is provided.
The photodiodes 214b and the photodiodes 214b are arranged obliquely with respect to the vertical direction of the detection position of the page conveying unit, and the paper dust generated by storing the pages of the bookbinding document does not collect at the page sensor 214 and falls downward. . The page sensor 214 detects the turning pages of the bookbinding original conveyed through the page guides 227 and 228 after separating one page, and the detection accuracy is extremely high within 1 mm regardless of the original. Further, the page sensor 214 also serves as a sensor for detecting a jam of unstored and undischarged pages when turning a page.

The scanning unit 200 scans to the left after reading the spread bookbinding original BO, and scans the bookbinding original BO.
Turn over the pages. The page locus when storing pages is almost constant,
It is mechanically determined. The uppermost right page edge of the bookbinding document BO is attracted to the turning belt 208, and the scanning unit 200
When the scanning is stopped temporarily, the turning belt 208 rises and the turning page is guided in the direction of the page conveying path. The scanning unit 200 is further scanned in the left direction, the page to be turned is stored in the page conveying path, and the leading edge of the page goes out of the scanning unit 200. The locus of the turning page rises and is almost constant along the turning belt 200, and is determined by the mechanical layout. The page sensor 214 guides the turning page to the page guide 22.
It is arranged in the vicinity of the entrance of the page-turning section configured by 7, 228 and detects the page-turning pages of the bookbinding document. IPU
The microcomputer in 103 detects the position of the scanning unit 200 at the turning page storage start detection timing when the page sensor 214 detects the turning page, that is, the position of the scanning unit 200 at the bookbinding original turning page storage detection position of the turning page storage unit. The position of the right edge of the turning page when the turning page is on the bookbinding original is calculated. Therefore, IPU
The microcomputer in 103 detects the page edge after separating one page by the page sensor 214, thereby accurately and reliably detecting the page edge position in the turning start direction (rightward in this apparatus) of the spread binding document. Then, the trailing edge of the image effective range of the bookbinding document and the next page turning position (the bookbinding document has very little change in position due to page turning) are corrected.

The control of the page suction position based on the above calculation result is performed as follows. This device has a suction width of about 20 mm which is lifted while the turning belt and the right end of the page are in contact with each other. When the bookbinding original turning page storage detection timing of the turning page storage unit is earlier than the target timing, the IPU 103 has a suction width that is larger than the target 20 mm. Is displaced in the fast direction. For example, IPU10
3 is 2 mm when the detection timing for turning over the folded pages is a distance
The suction width is estimated to be 22 mm at an early time, and the next page suction position is changed by 2 mm to the right by the address of the scanning unit 200.

On the other hand, in the case where the bookbinding original page turning page storage detection timing of the page turning page storage section is later than the target timing, the IPU 103 has a suction width smaller than the target of 20 mm. The adsorption and rising timing of is changed to a slower direction. As a result, the page suction width is controlled to a constant value, and it is possible to prevent improper turning, mistakes in turning a large number of sheets, and damage to the bookbinding original, and a stable repetitive operation is performed.

When the scanning unit 200 is further scanned to the left after the turning pages are stored in the turning pages storing section, the double-page spread original is bound by the central binding section and pulled by the binding sections. While being discharged from the page-turning conveyance path, a U-shaped trajectory is drawn. The trail of ejecting the page-turning is always substantially constant along the page-turning path and the pressing roller 281a. The microcomputer in the IPU 103 binds the turning pages from the timing at which the page sensor 214 detects the end of the bookbinding original page discharge in the turning page storage section, that is, the position of the scanning unit 200 at the binding page turning page discharge detection position in the turning page storage section. It is calculated from the output signal of the page storage sensor 214 with the left end of the document to be on the upper left of the document. Therefore, the microcomputer in the IPU 103 detects the page edge after separating one page to accurately and surely detect the page edge position of the spread bookbinding original in the turning start direction (to the left of the apparatus). The leading edge of the effective image area of the original is detected and used as the next reading resist.

From the start position address A and the end position address B of the effective image range between the right end portion and the left end portion of the bookbinding document calculated above, the microcomputer in the IPU 103 determines that the center position is the spread page of the bookbinding document. The center binding portion address C is calculated as follows.

C = (A + B) / 2 As a result, the reference position for page allocation when copying the double-page spread original image read at one time can be obtained. In addition, since the image of the central binding portion of the spread binding document is likely to be shaded or distorted,
The microcomputer in the IPU 103 surely erases the image at that position. Further, the microcomputer in the IPU 103 performs the right page registration at the time of page independent output by using the calculated center binding portion address C.

As described above, in the double-page spread original, the position of the uppermost double-page spread is displaced by repeating the page turning,
The displacement due to turning one page is extremely small. Also,
Since the positional deviation of the uppermost page in the repetition of turning 10 pages is about 1 mm, the deviation of the image position (copy resist) is small. Therefore, the page adsorbing position of the bookbinding original is calculated for a plurality of times of page-turning scanning, for example, once for every 10-page turning operation, and the position data is updated, so that the bookbinding original of the apparatus is updated. The calculation processing and time for the page edge are reduced.

FIG. 14 shows the page image range of the read spread bookbinding original, and FIGS. 15 and 16 show the layout of the page images in each bookbinding original image reference mode.

In FIG. 14, the cover has an A4 size and the main thickness is about 30.
This is an example in which the vicinity of the center of a bound document having a size of mm is opened. The page length in the plane direction from the page edge portion of the bookbinding document to the central binding portion is reduced to about 200 mm. In general, the pages of a spread binding document do not have a standard size because the image is contracted by the binding portion even if the paper has a standard size. The amount of image shrinkage varies depending on the thickness of the bookbinding original and the binding method thereof.
Further, in many binding documents, the paper is often out of the standard size. Further, there is a case where the bookbinding original is out of the standard size by cutting the end portion after bookbinding.

FIGS. 15A to 15C show sheet images in the spread bookbinding original copy mode. The image reference positions in the spread binding document copy mode are the left edge of the sheet, the center of the sheet, and the right edge of the sheet.

When the image reference position is at the left end of the sheet as shown in FIG. 15A, the page end position in the scanning start direction of the spread binding document is detected as described above, and the microcomputer of the IPU 103 detects the page. By performing the read address operation of the frame memory 104 based on the left end position and the length information of the transfer paper fed by the laser printer, the left end of the bookbinding original is aligned with the leading end position of the transfer paper in the conveyance direction, and thus The images of both double-page spreads are formed on one sheet of transfer paper, and the images of both double-page spreads are formed left-justified on the transfer paper as in a conventional scale-based copying machine.

As shown in FIG. 15B, when the image reference position is at the center of the paper, both page end positions in the scanning start direction and scanning end direction of the spread bookbinding original are detected as described above, and I
The microcomputer of the PU 103 operates the read address of the frame memory 104 according to the scanning direction length information of the spread bookbinding document calculated from the detection position and the length information of the transfer sheet fed by the laser printer, thereby binding the bookbinding document. Two-page spread images are formed in the center of the transfer paper.
Therefore, a uniform margin can be formed on the left and right of the transfer paper due to the shrinkage of the original.

As shown in FIG. 15C, when the image reference position is at the right end of the paper, the page end position in the scanning end direction of the spread binding document is detected as described above, and the microcomputer of the IPU 103 detects it. By operating the read address of the frame memory 104 according to the page end position and the length information of the transfer paper fed by the laser printer, the right end position of the bookbinding original is aligned with the rear end position of the transfer paper in the conveyance direction. Both spread pages of the bookbinding document are formed on one transfer sheet. As a result, the two-page spread images are formed right-justified on the transfer paper, and the shrinkage of the original creates a margin on the left side of the transfer paper.
A binding margin can be used when the transfer paper after copying is left binding.

FIGS. 16A to 16C show sheet images in the independent page copying mode (independent page mode). The image reference positions in the independent page copy mode for copying the images of each page of the bookbinding original onto the transfer paper are the left end of the paper, the center of the paper, and the right end of the paper.

When the image reference position is the left edge of the sheet as shown in FIG. 16A, the page edge positions of the left and right pages of the spread bookbinding document are detected and the center binding position is calculated as described above. Then, the microcomputer of the IPU 103 operates the frame memory 1 according to the page end position and the center binding position of the left page.
When the read address of 04 is operated, the position of the page edge of the left page in the scanning start direction of the double-page spread original is aligned with the position of the leading edge of the first transfer sheet in the transport direction, and the position of the center binding portion of the second transfer sheet is set. Both spread pages of the bookbinding document are formed on independent transfer papers in alignment with the leading end position in the transport direction. Also,
The images of the respective pages are formed on the respective transfer sheets in the left-justified manner as in the conventional scale-based copying machine.

As shown in FIG. 16B, when the image reference position is the paper center reference, the page edge positions of the left and right pages of the spread binding document are detected and the center binding position is set as described above. The scanning of the double-page spread original is performed by the microcomputer of the IPU 103 operating the read address of the frame memory 104 based on the page edge position and the center binding position and the length information of the transfer paper fed by the laser printer. The page end position and the center binding position of the left page in the starting direction are aligned with the both ends of the first transfer paper, and the center binding position and the page end position of the right page are located at the two end parts of the second transfer paper. Aligned,
Both double-page spreads of the binding document are formed in the center of independent transfer papers. Therefore, a uniform margin can be formed on the left and right sides of the transfer sheet due to the contraction of the document.

As shown in FIG. 16C, when the image reference position is the right end reference of the paper, the page end positions of the left page and the right page of the spread binding document are detected and the center binding position is set as described above. The frame memory 1 is calculated by the microcomputer of the IPU 103 based on the page edge position and the center binding position of the right page and the length information of the transfer paper fed by the laser printer.
By operating the read address 04, the center binding position of the double-page spread original in the scanning start direction is aligned with the trailing edge of the first transfer sheet, and the page edge position of the right page is fed with the second transfer sheet. The image of each page is formed right-justified on the transfer paper in alignment with the rear end position in the direction. As a result, a margin is formed on the left side of the transfer paper due to the contraction of the original, and a binding margin is created when the copied transfer paper is left-bound or bound.

Next, the image range of the bookbinding original will be described.

The reading sub-scanning direction range of the bookbinding original image and its arranging method will be described with reference to the time charts of FIGS. 17 and 18. 17 and 18 , the reading range and the image forming range in the sub-scanning direction are indicated by the number of scanning lines, and the image position thereof is indicated.

As described above, this apparatus reads both pages of the spread bookbinding original in one scan, stores the image data in the frame memory 104, then reads the image data from the frame memory 104, and the image is printed by the printer. Form. In this apparatus, the range in which the read image data in the sub-scanning direction is stored in the frame memory 104 (determined by SFGATE) is about 455 mm from the capacity of the frame memory 104 with respect to the maximum allowable size A3 of the bookbinding document of 420 mm.
There are 7174 lines. Normally, since the page position of the spread bookbinding document changes as described above, the range for storing the read image data in the sub-scanning direction of the apparatus in the frame memory 104 starts from the left end portion of the left document table having the maximum size of the bookbinding document.

In the bookbinding document spread mode of FIG. 17, the effective image range (VFGATE) of the spread page of the cover size A4 is set.
Has a positional relationship as shown in the drawing with respect to the read image data storage range of the frame memory 104 based on the edge detection result of the spread binding document. The microcomputer in the IPU 103 calculates 6400 lines for the A3 size 6614 lines due to the contraction of the binding portion of the bookbinding document based on the edge detection result of DFGATE. PFGATE 1, 2 and 3 are examples of PFGATE indicating the effective image range of the transfer paper when the image data within the calculated effective range is read from the frame memory 104 and recorded on the transfer paper of A3 standard size by the printer. The microcomputer in the IPU 103 is
The range of FGATE is determined by the size of the transfer paper fed by the printer, and is 6614 lines for A3 size. The printer uses the rising edge of PFGATE as a trigger to turn on the registration clutch of the paper feed, and sends the transfer paper from the paper feeding device by the registration rollers to form an image so that the leading edge of the image at the rising edge of PFGATE and the leading edge of the transfer paper are aligned. . The microcomputer in the IPU 103 transmits the white data FH to the printer by using each image data outside the VFGATE range as a margin.

PFGATE1 is PFGATE in the mode in which the image reference position is the left edge of the paper, and IPU10
The microcomputer in 3 is a frame memory 104
From the printer to the printer so that the left edge of the page of the bookbinding document is aligned with the leading edge of the transfer sheet and a margin is formed at the trailing edge of the transfer sheet. The image layout in this case is IPU103.
The microcomputer inside is 640 of page range (VFGATE) from the value of the counter that counts the number of image lines.
The image data after the end of 0 line is white data. PF
GATE2 is a mode in which the image reference is the center of the sheet, and the microcomputer in the IPU 103 transfers the image data from the frame memory 104 to the printer so that the center of the page is aligned with the center of the transfer sheet and the front and rear edges of the transfer sheet are uniform. Send so that margins are created. In this case, as the image layout, the microcomputer in the IPU 103 determines the page range (VFG) from the value of the counter that counts the number of image lines.
ATE) 6400 lines and transfer paper image area (PFG
107 lines, which is half of the 214 line difference from ATE2) 6614 lines, is provided as a margin part before VFGATE, and a margin part is provided from the end point of VFGATE 6400 line so that PFGATE2 ends at 6614 lines. To do.

PFGATE3 is a PFGATE in the mode in which the image reference is the right edge of the paper, and the microcomputer in the IPU 103 transfers the image data from the frame memory 104 to the printer so that the right edge of the page is aligned with the rear edge of the transfer sheet. Send so that a margin is created at the tip of. As the image arrangement, the microcomputer in the IPU 103 determines a difference 514 between the value of the counter that counts the number of image lines and 6400 lines of the page range (VFGATE) and 6614 lines of the image range of the transfer paper (PFGATE2).
A line is provided as a blank area in front of VFGATE.

FIG . 18 shows the image range in the independent page copy mode. As in the case of FIG. 17, the effective image range (VFGATE) of the spread page of the cover size A4 has the positional relationship as shown in the figure with respect to the read image data storage range of the frame memory 104, depending on the edge detection result. The microcomputer in the IPU 103 calculates VFGATE to be 6400 lines due to the contraction of the binding portion of the bookbinding document based on the detection result of the end of the bookbinding document, and one page is divided into 32 of the half.
The position of the 00st line and the center binding portion is calculated as the middle of the range of VFGATE.

Further, in the mode in which the image reference is the left edge of the paper, the microcomputer in the IPU 103 arranges the spread left page image in the transfer paper image range {PFGATE1 (L)} of A4 size 3307 lines, and sets the frame. The image data is sent from the memory 104 to the printer so that the left end portion of the left page is aligned with the front end of the transfer paper and a margin is formed at the rear end of the transfer paper. The image layout in this case is IPU
The microcomputer in 103 determines the page range (VFGATE) from the value of the counter that counts the number of image lines.
The image data after the end of 3200 lines, which is half of the above, is white data. Further, the microcomputer in the IPU 103 arranges the spread right page image in the transfer paper image range {PFGATE1 (R)} of A4 size 3307 lines, and transfers the image data from the frame memory 104 to the printer at the second transfer position of the binding portion. The paper is fed so that a margin is similarly formed at the rear end of the transfer paper so that it is aligned with the front end of the paper.

In the mode in which the image reference is the center of the sheet, the microcomputer in the IPU 103 arranges the spread page images in the transfer sheet image range {PFGATE2 (L), PFGATE2 (R)} of A4 size 3307 lines. Then, the image data is sent from the frame memory 104 to the printer so that the center of the page is aligned with the center of the transfer sheet and uniform margins are formed at the front and rear edges of the transfer sheet. As the image arrangement in this case, the microcomputer in the IPU 103 determines that the number of image lines is 3200 lines which is half of the page range (VFGATE) and 3307 lines of the transfer sheet image range (PFGATE2) from the value of the counter. 53 lines, which is half of the 107 lines of difference, are provided as a blank part before the page image, and the image data is sent from the frame memory 104 to the printer so that the PFGATE2 ends at 3307 lines with a blank part provided from the end point of 3200 lines.

In the mode in which the image reference is the right edge of the paper, the microcomputer in the IPU 103 arranges the spread left page image in the transfer paper image range {PFGATE3 (L)} of A4 size 3307 lines, and the frame memory 1
The image data is sent from 04 to the printer so that the page binding portion is aligned with the rear end of the transfer paper and a margin is formed at the front end of the transfer paper. In this case, as the image arrangement, the microcomputer in the IPU 103 uses the value of the counter that counts the number of image lines to determine 3200 lines of the page range (VFGATE) and 3 of the image range {PFGATE3 (L)} of the transfer paper.
A 107-line difference from the 307-line is provided as a margin before the VFGATE, and thereafter the image data on the left page of the VFGATE is read. Also, the microcomputer in the IPU 103 displays the spread right page image in A4 size 330.
Arranged in the 7-line transfer paper image range {PFGATE3 (R)}, the image data from the frame memory 104 to the printer is aligned with the right page end position at the rear end of the second transfer paper and the same as the front end of the transfer paper. Send so that margins are created.

As described above, the microcomputer in the IPU 103 controls the writing position of the transfer paper by the read address operation of the frame memory 104 in which the image data is once stored. Further, in all copy modes, the printer counts the timer triggered by the rising edge of each PFGATE, turns on the paper feed registration clutch, and forms an image by aligning the leading edge of the PFGATE signal with the leading edge of the transfer sheet. .

FIG . 19 shows the copy operation timing in the bookbinding original mode (bookbinding original reading mode) of the present apparatus, in which the edge of the bookbinding original is detected from the image in the initial mode from the press of the print key on the operation panel 99. Indicates the case. In FIG. 19 , pages 2 and 3, and pages 4 and 5 form a double-page spread of the bookbinding document. Further, the reference symbols RP and LP of the read signal memory R of the frame memory 104.
Indicates that the read image data is for the right page (RP) and the left page (LP), respectively. Further, two double-page spreads of the bookbinding original are continuously read by one scan of the scanning unit 200, the read image data is stored in the frame memory 104 as read data of A3 size, and the frame is read according to each output mode. The image data is read from the memory 104, imaged by a laser printer, and recorded on transfer paper. Fig. 19 shows A3 size transfer paper with A3
A case of a one-to-one copy mode in which a bookbinding document image of a size is output and one copy is copied to the bookbinding document is shown.

When the print key for instructing the start of copying on the operation panel 99 is turned on at the bookbinding original mode operation timing shown in FIG. 19, the microcomputer in the IPU 103 causes the scanner motor 106 to scan the scanning unit 200. The scanning unit 200 located in the central portion of the apparatus is rotated in the reverse direction to move in the reading start direction. When the scanning unit 200 moves to the reading start position of the left home position, the microcomputer in the IPU 103 drives the scanner motor 106 so that the scanning unit 200 moves to the right, and turns on both fluorescent lamps 201 and 202. Then, the scanning for reading the bookbinding original is started.

The microcomputer in the IPU 103 regards the image as a document image from the end point of the left page of the spread bookbinding document, and reads the effective image area signal SFGAT in the sub-scanning direction.
Generate E. Further, the microcomputer in the IPU 103 operates the data write signal memory W of the frame memory 104 by the effective image area signal SFGATE to control the data write range. The microcomputer in the IPU 103 recognizes the center point of the spread bookbinding document binding portion from the control address of the scanner motor 106 and sets the reference position of the second image in the independent page mode or the read image in the spread page mode to the center of the transfer paper. Used when forming.

When the scanning unit 200 reaches the right page edge of the double-page spread document, detection of the right page edge of the bookbinding document is started, and the microcomputer in the IPU 103 calculates the page suction position when turning the page. When the reading scan of the scanning unit 200 is completed, a backward page-turning scan is started, and the laser printer starts image formation for the first time after the effective image range is determined by the page storage position. That is, IPU103
The microcomputer therein calculates the right end position of the page on the bookbinding original from the scanning position of the scanning unit 200 at the start of the storage detection by the page sensor for the page turning, and the page sensor for the page turning. From the scanning position of the scanning unit 200 at the time when the discharge is detected, the position of the left end of the page on the bookbinding document is calculated from the page storage shape of the apparatus.

In the second and subsequent times, the laser printer starts image formation immediately after the end of scanning and scanning within the effective image range calculated from the previously detected page storage position. The data reading signal memory R of the frame memory 104 is generated by the effective image area signal PFGATE in the sub-scanning direction on the laser printer side.
Is operated and image data is output from the frame memory 104 in synchronization with the laser printer. Further, at the time of turning each page, the page sensor repeatedly detects the page edge of the spread binding document. By repeating the above steps, the double-page spread of the bookbinding manuscript is performed while automatically turning the pages of the bookbinding manuscript.

This apparatus performs a stable page turning operation against the displacement of the suction roller. This is because the suction position is important because only the leading edge of the page is sucked, displaced upward and guided to the page storage section. As described above, the page edge of the bookbinding original is detected by using the page sensor during the page-turning scanning of the bookbinding original,
The page suction / separation position for the page edge of the bookbinding original, which changes with repeated page turning, is determined,
The separation is controlled so that it is done.

Next, the movement of the bookbinding platen and the image memory range will be described.

FIG. 20 shows the movement of the bookbinding platen 1. During reading of the bookbinding document BO, the left and right document tables 1 are independently pressurized so that the double-page spread of the bookbinding document BO remains flat as described above. The left manuscript table 1 only moves up and down by turning the pages according to the thickness of the left page of the bookbinding manuscript. The right manuscript table 1 moves up and down by turning pages according to the thickness of the right page part of the spread bookbinding manuscript, and the left and right manuscript tables 1 are joined at the spine part of the bookbinding manuscript so that the spine part of the bookbinding manuscript turns the pages. As it is turned over, it is displaced so as to rotate around the right end of the left document table 1.

FIG. 21 shows a spread bookbinding original and an image memory range (image data storage range of the frame memory 104).

In the bookbinding original BO, the spread left pages are stacked each time the pages are turned, and the leftmost top page is slanted and displaced rightward. On the other hand, the double-page spread right page of the bookbinding document BO is displaced to the right by turning the page, but returns to the initial position by the rotation of the spine cover. Further, the spread left page is pulled by the curved portion of the binding portion and is displaced rightward.

As a result of the simulation, the amount of displacement on the right page of the double-page spread is the binding document size A4 and the binding document thickness of 40 mm.
The maximum is 14.5 mm. FIG. 22 shows a simulation result of the movement of the rightmost top page of the bookbinding original, and shows the movement of the rightmost top page of the bookbinding original in the case of the bookbinding original size B5 and the thickness of the bookbinding original of 30 mm.

As described above, the left manuscript table 1 on which the left cover of the bookbinding manuscript is fixed is fixed in the scanning direction and moves only up and down. Therefore, the spread left page is the first page, that is, the left side of the left cover. It is never displaced. Further, when reading a bookbinding document, the bookbinding document is scanned from below from the scanning unit 2.
Since the bookbinding original is brought into contact with the scanning unit 200 by scanning the scanning unit 200 by pressing 00, the page bundle of the bookbinding original is urged to the downstream side in the scanning direction.

The present apparatus is provided with the frame memory 104 as an image memory for storing image data as described above, and the image memory 104 is used for the following purposes.

First, the image memory 104 serves as a speed buffer for reading an original and forming an image, and performs stability of contact reading by the scanning unit 200 of a bookbinding original and protection of the original. Secondly, the image memory 104 is used for protecting the original and improving the productivity of copying by repeating copying by reading the original once. Thirdly, the image memory 104 is used as a copy page layout for determining the page position for the first time and cutting out an independent page.

As shown in FIG. 21, the range for storing the bookbinding original image data in the image memory 104 is centered around the binding portion of the bookbinding original, and at the copy magnification of equal to or less than 1, the image of the bookbinding original with a maximum spread of A3 size is displayed. It is an area for storing data. The image memory 104 stores the image data from the VPU 102 from just before that area in the IPU 103.
Then, the surplus portion of the image memory 104 is arranged in the right direction.

Next, page displacement compensation will be described.

First, the size of the image memory 104 will be described. The image memory 104 is 16 MByte (1
28 Mbit: To be exact, 134,217,728 bi
It has a storage capacity of t) and stores image data of 4 bits / dot after image processing from the VPU 102 in multivalue. Therefore, the image data storage range of the image memory 104 is slightly larger than the A3 size. Here, 16MByte is 33,55
4,432dot (134,217,728bit /
4), and the A3 size is 30,953,520 dots
(4680 dots × 6614 lines), and the remainder of the image memory 104 is 2,600,912 dots.

Since the remainder of the image memory 104 is 555 lines and one line of the image memory 104 is used for storing white data for image deletion, the image memory 1
The effective remainder of 04 corresponds to 35.1 mm. This A3
The size + 35.1 mm is the image data storage range of the image memory 104, and the remainder of the image memory 104 is used as the page movement amount due to the thickness of the bookbinding original with respect to the maximum spread size A3 of the bookbinding original. In the present apparatus, as described above, the image memory 104 has the maximum spread size A of the bookbinding document.
In addition to 3 pages for 1 page, the maximum binding thickness is 40 m
It has an image data storage range of m or less. This extra portion is used for compensating for the page displacement of the binding document.

Next, the page displacement amount of the bookbinding original will be described. The maximum permissible bookbinding document thickness is 40 mm, and the binding part position of the bookbinding document is displaced to the right every time the page is turned, and the right end portion of the right page, which is the last part of the reading scan, is also displaced. Further, in the bookbinding original, the left cover is fixed in the scanning direction and the binding portion rotates, so that the displacement of the right end position of the double-page spread right page becomes less than or equal to the bookbinding original thickness. From the result of the numerical simulation of the right end position of the bookbinding document spread, the maximum displacement of the right end position of the right page of the bookbinding document spread is 14.5 m when the size of the bookbinding document is A4 and the thickness of the bookbinding document is 40 mm.
m. The maximum value of the displacement of the right end position of the bookbinding document double-page spread right page becomes smaller if the thickness of the binding document is smaller, regardless of the size of the binding document. That is, the image memory 104 has a margin of 35.1-14.5 = 20.6 mm at the same size copying (the same size reading) with respect to the surplus of 35.1 mm, and the image data storage range at the same size copying. Is satisfied and the page displacement amount is compensated. Also, the image memory 1
In the case of 04, reduction copying (reduction reading) has more margin.

On the other hand, when performing enlargement copying (enlargement reading) of a small-sized original, the surplus of 35.1 mm in the image memory 104 is reduced due to the magnification change, and 141% of the maximum magnification is within the original image range. Since 35.1 / 1.41 = 24.9 mm is equivalent and the displacement of the page position does not depend on the size of the bookbinding original, the margin of the image memory 104 is 24.9-14.5 = 10.5 mm at the time of maximum enlargement copying. Thus, the page displacement amount is compensated by satisfying the image data storage range of the image memory 104 even at the time of maximum enlargement copying.

In this apparatus, in addition to the compensation of the page displacement amount of the bookbinding document as described above, the above margin is used for the accuracy variation between machines and the resist adjustment. In this apparatus, as shown in FIG. 21, in the image memory 104, precision variation between machines and portions for resist adjustment are distributed in the scanning start direction and the scanning end direction, respectively, and the image data storage start position is the maximum size of the left page. It is set to a point 215 mm on the upstream side of the scanning of the bookbinding document set reference position, 5 mm before the end. As mentioned above,
In the image memory 104, the position for storing the image data of the double-page spread of the bookbinding document is determined by the IPU 103, and a surplus portion is arranged in the page displacement direction due to the repeated page turning in the upstream direction of the page turning.

As described above, this apparatus accurately detects the topmost page position of the spread page of the bookbinding original by using the page sensor 214 by inserting and ejecting the page turning page into the page storage unit during the page turning scanning. The accurate placement of the image is erased, and images around the page and the binding portion are erased. The page edge is detected by turning the page, and the page size of the bookbinding document is determined. In the present apparatus, after the first reading of the bookbinding document, the IPU 103 sets the left edge position of the left page of the bookbinding document reading start side detected previously to the position where the storage of the bookbinding document spread page image data in the image memory 104 is started. And As a result, the image data storage range of the image memory 104 is adjusted to the page end portion on the scanning start side, and the margin of the image data storage range of the image memory 104 increases on the scanning rear end side in the page displacement direction. .

The IPU 103, as shown in FIG.
In the case of the one-to-one copy mode in which the A3 size bookbinding original image is output on the size transfer paper and one copy of the bookbinding original is copied, the effective image area signal SFGATE and the data write signal memory W of the image memory 104 are output. As can be seen, in the first reading scan by the scanning unit 200, I
The PU 103 stores image data in the image memory 104 from a fixed position. The IPU 103 stores the image data in the image memory 104 in the second and subsequent reading scans by the scanning unit 200 from the page edge position calculated from the page turning position at the time of the previous page turning.

As described above, the image reading plate 10
1 is processed by the VPU 102 and is processed by the IPU 103 in real time in the image memory 1.
04, and is output from the image memory 104 in synchronization with the image formation of the printer. The memory controller in the IPU 103 sequentially sends the image data of the designated address to the address bus of the image memory 104 composed of DRAM. The scanner controller in the IPU 103 performs management of the memory controller to detect an abnormality. For example, the bookbinding original moves during reading of the bookbinding original and the set position is missed, and the page image data storage range of the image memory 104 is
When the position is on the front side of the right end position of the page on the trailing end side of the reading scanning detected later, it is determined to be abnormal. At this time, since the image data is not correctly stored in the image memory 104 and the image data is lost, the main control board 107 causes the operation unit 99 to warn before the image output based on the determination.

Next, compensation during zooming will be described.

In this apparatus, multivalued image data after image processing including scaling is stored in the image memory 104, and this is write data excluding cutout of page image, erasing of binding part and frame part of document. is there. Since the capacity of the image memory 104 is in the range of A3 size or more in the output image, the range in which the image data of the original can be stored is different from that in the normal size copying in the variable size copying. While the image data storage range of the image memory 104 is the A3 size at the time of copying at the same size and reduction,
During enlargement (with respect to the sub-scanning direction) copying, the range in which the original image data of the image memory 104 is stored becomes smaller according to the scaling factor. For example, the original image data storage range of the image memory 104 during enlargement (in the sub-scanning direction) is B5 size when the scaling ratio is 115%, and A4 size when the scaling ratio is 141%. .

Since the bookbinding document is set on the document table 1 with the front of the binding portion as a reference, the origin of the bookbinding document image and the scaling is at the left end of the spine cover. In order to realize variable-magnification copying with the limited capacity of the image memory 104, the image data storage range of the image memory 104 is changed as follows during variable-magnification copying.

During enlargement copying, the IPU 103 changes the image data storage start position of the image memory 104 according to the scaling factor, and the image data storage range of the image memory 104 changes accordingly. The image data storage start position P of the image memory 104 when the magnification ratio during enlargement copying is M is Pmm = with respect to the image data storage start position of the image memory 104 during bookbinding document copying at an equal magnification or less. It is represented by 210 (1-1 / M). The maximum scaling factor is 141% (M = 1.4
The image data storage start position P of the image memory 104 in the case of 1) is a position 61 mm to the right from the image data storage start position of the image memory 104 at the time of equal-magnification copying. Therefore, when the image data storage start position of the image memory 104 when the scaling ratio is equal to or less than 5 mm is located 5 mm before the left end of the maximum size bookbinding document, and 215 mm upstream of the bookbinding document set reference position on the scanning side. Is 14
The image data storage start position of the image memory 104 at the time of 1% enlargement copying is a point 154 mm upstream of the scanning from the bookbinding document set reference position.

FIG. 23 shows the copy operation timing in the bookbinding original mode of this apparatus. This is a copy operation timing in the case where a bookbinding original image of page size A5 is enlarged by 141% and formed on A4 size paper in the independent page mode. In the present apparatus, for scaling in the sub-scanning direction, the IPU 103 varies the scanning speed of the scanning unit 200 by varying the speed of the scanner motor 106 according to the scaling factor based on the scaling factor data from the main control plate 107. The main control board 107 transfers the scaling factor data to the IPU 103 in response to an input signal from the operation unit 99 or the like. The original scanning time during enlargement copying becomes longer in proportion to the enlargement ratio.

As can be seen from the SFGATE and memory W signals in FIG. 23, the IPU 103 stores the image data from the VPU 102 in the image memory 104 during the reading scan and outputs the image data from the image memory 104. The document reading operation by the scanning unit 200 is performed within a certain range regardless of the copy magnification and the document size.
At the time of enlargement copying, the IPU 103 detects the end of the memory address of the image memory 104 and ends the storage of the image data in the image memory 104 as indicated by the memory W signal. Further, at the time of reduction copying, the IPU 103 uses the image memory 10
The trailing end point of the reading scanning is detected before the final address of 4, and the storage of the image data in the image memory 104 is terminated at that time.

Next, the limitation on the image size / enlargement will be described.

Generally, a paper size equal to the bookbinding original image size after scaling is selected, and if the bookbinding original image size is a standard size, the shrinkage due to the bending of the bookbinding original binding portion is appropriately set as a margin on the paper. The image is placed. If the image size of the bookbinding document after scaling is smaller than the paper size, a blank space is created in the paper to arrange the image.

FIG. 24 shows the image range in the spread page mode, and FIG. 25 shows the image range in the independent page mode. These show the image size at the same size and the document image size at which the image data can be stored in the image memory at the time of 141% enlargement copying. The paper may be selected according to the original image size and the scaling factor as shown in FIGS. 24 and 25.
For example, firstly, in the double-page spread mode, the scaling factor is equal, the binding document page size is A4, and the paper size is B5. Second, the scaling factor is 115% in the double-page spread mode, and the binding document spread size is B4. When the paper size is B4, the image size is larger than the paper size, and the image runs off the paper.
Since the image is arranged on the sheet with the front side of the center of the double-page spread original as a reference, the page edge side and the upper side of the page are missing.

By the way, in this type of bookbinding original image forming apparatus, when the double-page spread mode is made to function and the left and right double-page spreads of the bookbinding original are directly copied on one side of the transfer paper, a long-side feed in the main scanning direction is performed. When the transfer paper is selected and fed, or when the independent page mode is activated and the spread pages on the left and right of the bookbinding document are divided into pages and copied onto the transfer paper one by one, in the sub-scanning direction. If long vertical feed transfer paper is selected and fed, both will result in miscopy.

Therefore, in the present invention, as shown in FIG. 26, only the vertically-transferred transfer paper can be selected in the spread mode, and only the horizontally-transferred transfer paper can be selected in the independent page mode. Further, here, when a transfer sheet other than the above-mentioned selectable transfer sheets is selected, a warning is displayed. FIG. 27 shows an example of this warning display. Further, when a manual sheet feeding means for feeding a manual sheet, which will be described later, is used, any of the above-described vertical feeding and horizontal feeding transfer sheets can be selected.

On the other hand, as is well known, many bookbinding originals are of various irregular sizes and small sizes, and transfer papers corresponding to these various sizes are preliminarily mounted as a built-in paper feeding cassette. It is almost impossible to keep. Therefore, in this type of device, paper is often fed manually. However, since the conventional bookbinding original image forming apparatus of this type does not have a manual feed size selection key for selecting or inputting the size of the manual feed paper, it is easy to make a miscopy due to a mistake in selecting the paper size during manual feed. It was

Therefore, in the present invention, as shown in FIG. 28, the operation panel 99 is provided with a manual feed size selection key 1000 for selecting or inputting the size of the manual feed paper. By operating the manual feed size selection key 1000, it is possible to select or input the size of the manual feed paper and copy it in the bookbinding original mode. Further, when the manual feed size selection key 1000 is pressed, a standard size paper is first selected, and an irregular size is input later. Further, when the manual feed size selection key 1000 is pressed, vertically fed paper is selected in the spread mode and horizontally fed paper in the independent page mode.

FIG. 29 shows a manual feed size selection flow in the independent page mode and FIG. 30 shows a manual feed size selection flow in the spread page mode when the manual feed size selection key 1000 is pressed.

That is, when the manual feed paper is the standard size (standard size), the manual feed size selection key 1000 is pressed and the manual feed table 70 of the printer 701 shown in FIG.
Select the paper size set in 9. Here, when the independent page is set, A4 width, B5 width, A5 width, B6
When changing the order of landscape and "*" and setting a double-page spread, A3 portrait, B4 portrait, A4 portrait, B5 portrait, A5 portrait, B6
The order changes from vertical to "*" (amorphous).

On the other hand, when the bypass paper set on the bypass table 709 has an irregular size (other than the standard size),
Press the manual feed size selection key 1000 to select “*” (indeterminate form). Here, when the independent page is set, A4 landscape, B5 landscape, A5 landscape, B6 landscape, and “*” are changed in this order, and when the spread page is set, A3 portrait, B4.
The order is vertical, A4 vertical, B5 vertical, A5 vertical, B6 vertical, and "*" (indefinite). Next, enter the vertical length of the manual paper using the numeric keypad and press the “#” key. If you make a mistake,
Before pressing the "#" key, press the "Clear / Stop" key to re-enter. Then, use the ten-key pad to enter the horizontal length of the bypass paper and press the “#” key.

After that, by pressing the "start" key, the image forming operation by manual paper feeding is executed.

[0209]

As described above, according to the present invention, it is possible to prevent a wrong size of transfer paper or manual paper from being fed and reduce miscopy.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a circuit configuration of a bookbinding original image forming apparatus in which the present invention is implemented.

FIG. 2 is a block diagram showing a data processing flow block of the apparatus.

FIG. 3 is a plan view showing an entire operation part of the apparatus and a part thereof.

FIG. 4 is a plan view showing a part of the operation unit.

FIG. 5 is a plan view showing another part of the operation section.

FIG. 6 is a timing chart showing a copy operation timing in a bookbinding original reading mode of the apparatus.

FIG. 7 is a timing chart showing the copy operation timing in the bookbinding original reading mode of the apparatus.

FIG. 8 is a flowchart showing a copy format selection flow of the apparatus.

FIG. 9 is a plan view showing an output image layout of the apparatus.

FIG. 10 is a sectional view schematically showing a scanning unit of the above apparatus.

FIG. 11 is a schematic cross-sectional view showing an image forming unit of the apparatus.

FIG. 12 is a diagram showing a bookbinding original document setting standard of the apparatus.

FIG. 13 is a cross-sectional view showing a part of a page storage unit of the apparatus.

FIG. 14 is a diagram showing a page image range of a spread binding document of the apparatus.

FIG. 15 is a diagram showing a transfer paper image in a spread bookbinding original copy mode of the apparatus.

FIG. 16 is a diagram showing a transfer sheet image in the independent page mode of the apparatus.

FIG. 17 is a timing chart for explaining an image range in the spread mode of the above apparatus.

FIG. 18 is a timing chart for explaining the image range in the independent page mode of the above apparatus.

FIG. 19 is a timing chart showing the copy operation timing in the bookbinding original mode of the apparatus.

FIG. 20 is a diagram for explaining bookbinding document support of the apparatus.

FIG. 21 is a diagram for explaining the displacement of the bookbinding original due to the page turning and the image data storage range of the image memory in the apparatus.

FIG. 22 is a diagram showing a simulation result of movement of a rightmost top page of a bookbinding document.

FIG. 23 is a timing chart showing the copy operation timing in the bookbinding original mode of the apparatus.

FIG. 24 is a diagram showing an image range in a spread page mode of the apparatus.

FIG. 25 is a diagram showing an image range in the independent page mode of the apparatus.

FIG. 26 is a flowchart showing an example of a copy format selection flow of the present invention.

FIG. 27 is a diagram showing an example of a warning display displayed when the paper orientation selected in the flow of the present invention is wrong.

FIG. 28 is a plan view of the operation panel for explaining the manual feed size selection key of the present invention.

FIG. 29 is a flowchart showing an example of a manual feed size selection flow in the independent page mode of the present invention.

FIG. 30 is a flow chart showing an example of a manual feed size selection flow in the spread page mode of the present invention.

[Explanation of symbols]

99 Operation part (operation panel) 101 image reading board 102 VPU 103 IPU 104 frame memory 107 Main control board 200 scanning units 214 page sensor 500 Scanner 501 printer 601 Binding Document Key 618 Copy format selection key 640 Enter key 641 print key 642 numeric keypad 701 Printer body 709 Manual Feed Table 801 Scanner control unit 802 System control unit 804 Operation control unit 1000 Manual feed size selection key BO bound manuscript BOa binding section

Claims (5)

(57) [Claims] 1. A document table on which a bookbinding document is placed, and an image of a spread bookbinding document that is opened and placed on the document table with a central binding portion as a reference from one page end of a bookbinding document spread page. a reading means for reading, copying the spread pages of the left and right of the bookbinding document and spread page mode directly copied on one side of the transfer paper, the transfer paper one by one separately for each page of spread pages of the left and right of the bookbinding document Independent page mode and the above modes
Page mode setting means for selectively setting the mode, image forming means for forming a read image on the transfer paper based on each of the above modes, warning display means for displaying a warning, and manual paper feeding.
In a bookbinding original image forming apparatus including a manual sheet feeding unit for paper , when the page mode setting unit is the two-page spread mode , paper is fed from a unit other than the manual sheet feeding unit.
That longitudinal feed transfer paper only, the upper case is the independent page mode
Serial manual feed from other feeding means only selectable transfer paper traversing to be fed, if you select the transfer sheet other than the selectable transfer paper on reporting, alert displayed by the warning display means, the upper Symbol A bookbinding original image forming apparatus characterized in that when the manual sheet feeding means is used, either of the above-described vertical feeding and lateral feeding transfer sheets can be selected. 2. The bookbinding original image forming apparatus according to claim 1, further comprising a manual size selection key for selecting or inputting a size of the manual paper. 3. The bookbinding original image forming apparatus according to claim 2, wherein the size of the manual feed sheet is selected or input to allow copying when the bookbinding original is read . 4. The bookbinding original image forming apparatus according to claim 2, wherein when the manual feed size selection key is pressed, a standard size paper is first selected and an irregular size is input later. 5. The bookbinding original according to claim 2, wherein when the manual feed size selection key is pressed, longitudinally fed paper in the spread mode and laterally fed paper in the independent page mode are sequentially selected. Image forming apparatus.