JPH10186948A - Image editing method, device therefor and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the divide-copying and binding of a large-sized document, without generating an image-lacked part, without requiring a sheet folder by copying document images, for a binding size and executing editing control to make bisected copied images continuous in the page boundary part of a spread page after being bound. SOLUTION: When a bundle of documents including the document different in size is read by an ADF device 101, copied on sheets of one kind of size and bound by a binder 105, each document of A4-size is recorded on both surfaces of recording sheets and bound by the binder 105, but the document of A3-size is divided into two surfaces of A4-size, to be printed. At the time of dividing the picture of the document, reduction processing is attained so that all images around a part corresponding to the bound part of the recording sheet used are put. In other words, division from the center is attained in the longitudinal direction of A3-size and the images are moved to stand in a line around a side opposite to the bound part after binding, in a lateral direction, to generate a marginal part, so that printing and binding are executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image editing method and apparatus for use in an image forming apparatus such as a copying machine and for performing post-binding post-processing on a sheet such as recording paper conveyed from the image forming apparatus. And a storage medium used in these image editing methods and apparatuses.

[0002]

2. Description of the Related Art In recent years, as a post-processing apparatus for output sheets output from a copying machine or the like, a bookbinding apparatus which is online and automatically performs bookbinding has been used. Accordingly, high-quality bookbinding output close to bound printed matter has been realized also in copiers and the like, in conjunction with higher image quality of copiers and the like.

[0003]

However, in the above-mentioned conventional example, when a document whose document size is larger than the bookbinding size is included, the document is reduced in size to be equal to the bookbinding size, After recording at the same size as above, the sheets were folded or bound by a sheet folding device to bind the book.

[0004] In the former case, if the reduction rate is increased, characters may be crushed and become unreadable, and in the latter case, a sheet folding device is required, and the cost is increased.

There is another conventional method in which one original is divided into a plurality of sheets of the same size as the bookbinding size and copied, and then supplied to a bookbinding apparatus. Since the copy sheet is not edited so as to be placed on both spread pages after bookbinding, there is a problem that it becomes extremely difficult to see the copy sheet unless it comes to the spread portion.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the related art, and a first object of the present invention is to provide a sheet folding apparatus without causing image missing portions. An object of the present invention is to provide an image editing method and apparatus capable of dividing and copying a large-sized document in a state that is easy to read without fail.

A second object of the present invention is to provide a storage medium used in the above-described image editing method and apparatus.

[0008]

According to a first aspect of the present invention, there is provided an image editing method for sequentially recording an image data group having a plurality of surfaces on both sides of a recording sheet and recording an arbitrary page. In an image editing method used in an image forming apparatus that creates a sheet bundle, a document size and a bookbinding size are detected, the detected document size and the bookbinding size are compared, the read image is divided into two, and the bookbinding size and Each original image is copied on a copy sheet of the same size without any loss of the image, and editing control is performed so that the two divided copy images are continuous at a page boundary between both spread pages after bookbinding. It is.

According to a second aspect of the present invention, there is provided an image editing method according to the first aspect, wherein the recording sheet is paper. is there.

According to a third aspect of the present invention, there is provided an image editing method according to the first aspect, wherein the copy sheet is paper. is there.

In order to achieve the first object, an image editing method according to a fourth aspect is characterized in that the image forming apparatus is a copying machine. Things.

According to another aspect of the present invention, there is provided an image editing method comprising: sequentially recording an image data group having a plurality of surfaces on both sides of a recording sheet to form a recording sheet bundle of a desired page; In an image editing method used for an image forming apparatus, image data for one surface is divided into two image data,
When the image of the page immediately before the divided image is recorded on the front surface of the recording sheet, the first surface of the divided image is recorded on the back surface of the recording sheet, and the second surface is recorded on the front surface of the next recording sheet. When the image of the page immediately before the divided image is recorded on the back surface of the recording sheet, the front surface of the next recording sheet is skipped and the first surface of the divided image is recorded on the back surface. And recording the second side on the surface of the next recording sheet.

According to a sixth aspect of the present invention, there is provided an image editing method according to the fifth aspect, wherein the recording sheet is paper. is there.

According to a seventh aspect of the present invention, there is provided an image editing method according to the fifth aspect, wherein the image forming apparatus is a copying machine. Things.

In order to achieve the first object, an image editing apparatus according to claim 8 sequentially records an image data group consisting of a plurality of surfaces on both sides of a recording sheet to create a recording sheet bundle of an arbitrary page. In an image editing apparatus used for an image forming apparatus, a document size detecting means for detecting a document size, a book size detecting means for detecting a book size, a document size detected by the document size detecting means and the book size detecting means Comparing means for comparing the bound image with the detected binding size, dividing means for dividing the read image into two, and copying means for copying each original image onto a copy sheet of the same size as the bound size without missing the image. ,
And a control means for controlling the editing so that the copied image divided by the dividing means is continuous at the page boundary between the two spread pages after bookbinding.

In order to achieve the first object, an image editing apparatus according to a ninth aspect of the present invention is the image editing apparatus according to the eighth aspect, wherein the recording sheet is paper. is there.

According to a tenth aspect of the present invention, there is provided an image editing apparatus according to the eighth aspect, wherein the copy sheet is paper. is there.

In order to achieve the first object, an image editing apparatus according to claim 11 is the image editing apparatus according to claim 8, wherein the image forming apparatus is a copying machine. Things.

According to a twelfth aspect of the present invention, there is provided an image editing apparatus according to the eighth aspect, wherein the document size detecting means is a CPU.
(Central processing unit).

In order to achieve the first object, an image editing apparatus according to claim 13 is the image editing apparatus according to claim 8, wherein the bookbinding size detecting means is a CPU.
(Central processing unit).

According to a fourteenth aspect of the present invention, in the image editing apparatus, the comparing means is a CPU (Central Processing Unit). It is characterized by the following.

In order to achieve the first object, an image editing apparatus according to claim 15 is the image editing apparatus according to claim 8, wherein the control means is a CPU (Central Processing Unit). It is characterized by the following.

In order to achieve the first object, an image editing apparatus according to a sixteenth aspect of the present invention sequentially records an image data group consisting of a plurality of surfaces on both sides of a recording sheet to create a recording sheet bundle of a desired page. Means for dividing an image data for one surface into two images, and an image of a page immediately before the image divided by the dividing device is recorded on the surface of a recording sheet. In this case, the first side of the divided image is recorded on the back side of the recording sheet, the second side is recorded on the front side of the next recording sheet, and the image of the page immediately before the divided image is recorded on the recording sheet. When recording on the back side, editing control is performed so that the front side of the next recording sheet is skipped, the first side of the divided image is recorded on the back side, and the second side is recorded on the front side of the next recording sheet. It is characterized in that it has and a that control means.

In order to achieve the first object, an image editing apparatus according to claim 17 is the image editing apparatus according to claim 16, wherein the recording sheet is paper. is there.

In order to achieve the first object, an image editing apparatus according to claim 18 is the image editing apparatus according to claim 16, wherein the image forming apparatus is a copying machine. Things.

In order to achieve the second object, the storage medium according to the nineteenth aspect records an image data group consisting of a plurality of surfaces sequentially on both sides of a recording sheet, and creates a recording sheet bundle of an arbitrary page. A storage medium for storing a program for controlling an image editing device used for an image forming apparatus,
A document size detection module that detects a document size, a booklet size detection module that detects a booklet size, and a comparison module that compares the document size detected by the document size detection module with the booklet size detected by the booklet size detection module. , Read the image 2
A dividing module for dividing, a copying module for copying each original image on a copy sheet of the same size as the bookbinding size without missing an image, and a copy image divided by the dividing module into two pages after bookbinding. A program having a control module for performing editing control so as to be continuous at a boundary portion is stored.

Further, in order to achieve the second object, in the storage medium according to the twentieth aspect, an image data group having a plurality of surfaces is sequentially recorded on both sides of a recording sheet, and a recording sheet bundle of an arbitrary page is created. A storage medium for storing a program for controlling an image editing device used for an image forming apparatus,
A dividing module that divides image data of one arbitrary surface into two images, and, when an image of a page immediately before the image divided by the dividing module is recorded on the surface of a recording sheet, When the first side is recorded on the back side of the recording sheet and the second side is recorded on the front side of the next recording sheet, and the image of the page immediately before the divided image is recorded on the back side of the recording sheet, the next recording is performed. A program having a control module for performing editing control so as to record the first side of the divided image on the back side while skipping the front side of the sheet and record the second side on the front side of the next recording sheet is stored. It is a feature.

[0028]

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

(First Embodiment) First, the first embodiment of the present invention will be described.
An embodiment will be described with reference to FIGS. FIG.
1 is a vertical sectional side view showing a configuration of a digital image copying apparatus which is an image forming apparatus including an image editing apparatus according to a first embodiment of the present invention. Referring to FIG. 1, reference numeral 101 denotes a document feeding device (hereinafter, referred to as an ADF device); 102, a scanner device; 103, a printer device;
105 is a bookbinding device, 106 and 107 are stackers, 108
Denotes an operation unit.

The ADF 101 automatically feeds the original along a predetermined paper path in order to read the original. The scanner device 102 reads a document image in full color. Document reading by the scanner device 102 when the ADF device 101 is operated is executed by a drift reading method. The reading of the document by the scanner device 102 is possible on both sides / one side. The scanner device 102 performs various image processing and editing processes on the read image data, and then sends the image data to the printer device 103. The scanner device 102 reads the image data read by an external device such as a computer (not shown). A function of receiving image data from an external device such as computer graphics, synthesizing the image data with image data read by the scanner device 102, and sending the image data to the printer device 103. It has a function of sending the image processing function to the printer apparatus 103 after using the image processing function.

The printer device 103 is composed of a laser printer, and prints image data sent from the scanner device 102 in black and white on one of both sides or one side of a sheet (for example, recording paper). The reading pixel density of the document image of the scanner device 102 and the recording density of the printer device 103 are both 400 dpi. The printed sheet is discharged from the sheet discharge port 104, and the bookbinding apparatus 1
05. When the designated number of recorded sheets are fed from the printer apparatus 103, the bookbinding apparatus 105 performs bookbinding using a hot-melt type bind tape and stacks a sheet bundle (bookbinding bundle) into a stacker 106 or 107.
And the bookbinding operation is completed. Here, a sheet bundle bound by the bookbinding apparatus 105 will be described with reference to FIG. 2, reference numeral 201 denotes a sheet bundle;
Reference numeral 2 denotes a hot-melt type bind tape used for bookbinding. A hot-melt adhesive 203 is applied to the bind tape 202.

After the sheet bundle 201 fed from the printer device 103 is aligned, the sheet bundle 201 is pressure-bonded to the back surface 3 by a bind tape 202 heated by a heater adjusted to about 180 ° C. . At the time of this bonding, the adhesive 203 of the bind tape 202 is impregnated into the gaps of the sheet bundle 201 to reliably bind the sheet bundle 201. The amount of the adhesive 203 impregnating into the gaps of the sheet bundle 201 varies depending on the type of the sheet, but it has been experimentally obtained that the amount of the adhesive 203 is about 1 mm when the impregnation is performed most frequently.

Returning to FIG. 1, the operation unit 108 notifies the operator of a keyboard device for the operator to give various instructions to the image forming apparatus and various statuses returned from the respective devices. For display.

ADF device 101, scanner device 102,
Printer device 103, bookbinding device 105, operation unit 108
Have control boards each having an independent CPU. The CPU of the bookbinding device 105 includes the scanner device 102,
The printer 103 and the bookbinding apparatus 105 are respectively connected by a serial communication method, and a CPU of the operation unit 108 instructs and controls a series of operations to each apparatus. Also, A
The CPU of the DF device 101
U and the scanner 1
02 operates under the control of C.02.

As described above, the CP of the operation unit 108
U operates as a master and operates in a so-called master-slave system, which controls the entire system.

Next, the ADF device 101 and the scanner device 102 in the image forming apparatus according to the present embodiment will be described in detail with reference to FIG.

FIG. 3 is a vertical sectional side view showing the configuration of the ADF device 101 and the scanner device 102. Referring to FIG. 1, a scanner device 102 includes an optical system including a lens 312, a document illumination lamp 308, and mirrors 309 to 311. The scanner device 102 forms a document image on a CCD line sensor (hereinafter referred to as CCD) 313 and reads the image. FIG. 3 shows the position of the optical system in the case where the original fed from the ADF 101 is read by the drift reading method, and the original fed by the ADF 101 is stopped at this position. read.

Document illumination lamp 308, mirrors 309-3
Reference numeral 11 is driven by a motor (not shown), scans a range indicated by an arrow 316, and reads a document placed on a platen glass 314. Reference numeral 315 denotes a document pressing pressure plate for bringing a document into close contact with the platen glass 314 (hereinafter, this reading is referred to as book reading).

An original stacking tray 301 can mix originals of different sizes. Reference numeral 302 denotes a lifter drive motor for the document stacking tray 301, and reference numeral 303 denotes a paper feed roller. The document fed by the feed roller 303 is separated into one sheet by a separation roller 307 and introduced into a paper path.
The document introduced into the paper path is sequentially conveyed in the paper path by each roller, and is read by the CCD 313 while being conveyed and passed through the flow reading position sandwiched between the registration rollers 304 and 305.

The registration roller 304 has a registration sensor 319, and the registration roller 305 has a registration sensor 32.
0 is provided, and the leading end of the document in the in-track direction (the direction in which the document is transported; hereinafter, this direction is referred to as the in-track direction, and the arrangement direction of the pixel rows of the CCD 313 is referred to as the cross-track direction) / Detect rear end,
A timing signal for writing image data to an image memory described later is generated. Reference numeral 306 denotes a flapper, which switches the paper path depending on whether the original to be read is one side or both sides. The read document is discharged from the discharge port 307 and is stacked on a discharge tray unit 318 formed integrally with the document pressing plate 315.

FIG. 4 is a diagram showing a paper path for reading a single-sided original. In FIG.
Is conveyed along the paper path indicated by the arrow, and only the front side of the original is read and discharged from the paper output port 307.

FIG. 5 is a diagram showing a paper path for reading a double-sided document. By switching the flapper 306, the document is conveyed along a paper path indicated by an arrow.
After reading the front side of the document, the document is conveyed so as to read the back side of the document, and is discharged from the discharge port 307.

The read image data is subjected to various image processing and editing processing and then stored in an image memory described later.

When both sides of a document are read by such a method for reading a document, the read image on the back surface is a mirror image of the image on the back surface with respect to the cross track direction. In the present embodiment, the normalization of the image is performed by changing the write address of each pixel when the read original image data is written (stored) in an image memory to be described later. At this point, the image data on the back side of the document has already been normalized.

Next, the flow of an image signal of the image forming apparatus according to the present embodiment will be described with reference to FIG. In FIG. 6, a document image condensed by a lens 312 and formed on a CCD 313 is input to an A (analog) / D (digital) conversion unit 601 via a sample hold circuit and an amplifier (not shown). Each pixel is converted into digital image data of a total of 24 bits of 8 bits of red (hereinafter referred to as R), 8 bits of green (hereinafter referred to as G), and 8 bits of blue (hereinafter referred to as B). After the shading correction unit 602 performs the shading correction process and the input masking unit 603 performs the input masking process, the data is input to the data selection unit 604. The data selection unit 604 selects data to be written to the first image memory 605 and the second image memory 606.

Here, the image memory section and its peripheral blocks will be described. The image memory unit includes first and second image memories 605 and 606. Each of the image memories 605 and 606 includes the scanner device 102 (see FIG. 1).
Has the capacity to store a full-color image of a maximum size readable document for one page at 400 dpi. In this embodiment, the maximum size of the document is A3, the pixel density is 400 dpi, and the memory capacity for one side of the document image requires 88.6 Mbytes. Is 16 Mbits, which is 96 Mbytes.

In the present embodiment, the image memories 605 and 606 corresponding to two originals are used as a double buffer, so that even if the original image is continuously read by the ADF 101 (see FIG. 1), the delay is reduced. Process image data and send it to the printer device 103 (see FIG. 1);
The transmission and reception of image data to and from a computer device (not shown) via the communication device 2 can be performed without delay.

When an original image is read by the ADF device 101 (see FIG. 1), the registration sensor 319 or 32
0 (see FIG. 3) after a predetermined delay time (document conveyance speed and registration sensors 319, 3
(Depending on the distance between 20 and CCD313)
, The writing of the image data from the CCD 313 to the first image memory 605 or the second image memory 606 is started. The end of the writing is after the elapse of the predetermined delay time since the registration sensor 319 or 320 detects that there is no original.

Next, the double buffer control will be described. Here, a case where a document is read and printed by the printer device 103 (see FIG. 1) will be described as a representative example.

The image data of the first surface read first is written to the first image memory 605. The printer 103 until the reading of the image data of the first side is completed.
Is not transmitted. When all the image data of the first side is written in the first image memory 605, the image data is sent from the first image memory 605 via the printer I / F (interface) 610 and printed by the printer device 103. You. At this time, reading of the image data of the second surface starts in parallel, and the image data is written to the second image memory 606.

If the printing speed of the printer device 103 and the reading speed of the scanner device 102 are different from each other, the next buffer inversion is not performed until the operation of the slower one is completed, and the device that has completed the operation first is in the standby state. to go into.

When the transmission of the image data from the first image memory 605 for one screen is completed and the writing of the image data for one screen to the second image memory 606 is completed, the buffer is inverted again. The image data is sent from the second image memory 606 to the printer device 103, and the image data is written to the first image memory 605.

By repeating the above operation, the reading and printing of the original image are executed continuously.

In this embodiment, the scanner 1
Although the document reading speed of the document 02 and the printing speed of the printer 103 are equal to each other, it goes without saying that there is no inconvenience even if their operating speeds are different as described above.

Next, the inversion switching operation of the image memories 605 and 606 will be described. In FIG. 6, a first write address generator 623 includes a first image memory 605
Alternatively, an address signal and a write pulse for writing image data from the scanner device 102 to the second image memory 606 are generated. Similarly, the second write address generator 624 is configured to output the first image memory 605 or the second
An address signal and a read pulse for transmitting image data from the image memory 606 to the scanner device 102 are generated. In either case, the initial value of the address can be set to any value from the CPU 617, and the address is automatically incremented by writing / reading.

The blocks of the first and second write address generators 623 and 624 have a write end address register and a read end register (not shown) as registers that can be set by the CPU 617.
When the incremented address value becomes equal to these register values, writing and reading to and from the image memories 605 and 606 are stopped.
Further, the second write address generator 624 has a timer for adjusting the recording position of a sheet on which image data to be described later is recorded.

In the scanner device 102 according to the present embodiment, since the maximum size of a readable document is A3, a value that can be normally written to the A3 size is set in the first write address generator 623. . The second write address generator 624 changes the set value depending on, for example, the case where the entire read image data is read or the case where a certain area is cut out and read. This function is used for dividing a document image described later.

In FIG. 6, a first memory selection unit 607
And the second memory selection unit 608 includes the first image memory 6
This is for selecting which of the image memory 05 and the second image memory 606 is supplied with the address. The third memory selection unit 609 selects an image memory to which an address when the CPU 617 reads (reads) / writes (writes) the image memory unit is supplied. The data selection unit 604 selects data to be written to the first image memory 605 or the second image memory 606. The data selection unit 604 also stores image data from the scanner device 102, data from the CPU 617,
First image memory 605 or second image memory 606
One is selected from three types of image data obtained by performing image processing on the image data read out from.

The first to third memory selectors 6 described above
07 to 609 and the data selection unit 604
Selects each route.

In FIG. 6, image data read from the first image memory 605 or the second image memory 606 is subjected to a scaling process by a reduction interpolation unit 611 and an enlargement interpolation unit 612 and then to a filter 613. Performs a filter process such as an edge enhancement process and a smoothing process. And
The image data is subjected to a conversion process from full-color to a black-and-white brightness signal by a brightness conversion unit 614, and a log conversion by a log conversion unit 615, and then to a printer device 103 by a printer / video I / F (interface) 616. Sent out. Note that transmission and reception of commands and the like to and from the printer device 103 are performed by the printer I / F 610.

In FIG. 6, reference numeral 618 denotes a motor driver unit, 619 denotes a sensor signal input unit, and 620 denotes an operation unit I.
/ F (interface), 621 is ADF I / F
(Interface), 622 is a computer I / F
(Interface).

Next, the timing of sending image data to the printer device 103 and the control of the recording position will be described with reference to FIGS.

The printer device 103 (see FIG. 1) is a laser beam printer. The image forming method is such that a recording sheet (recording paper) 703 is conveyed at a constant speed (in-track direction) while being modulated by image data. Scanning the laser beam in the cross-track direction
Form an image of the surface.

Here, for the sake of simplicity, the scan image for the recording sheet 703 has been described. However, in actuality, the photosensitive member is scanned, a latent image is formed, developed, and then transferred to the recording sheet 703. Thus, an image is formed on the recording sheet 703.

When printing image data, the CPU
617, a printer I / F 610 for the printer device 10;
3 to issue a print start command. Accordingly, the printer 103 starts supplying the recording sheet 703,
When the recording sheet 703 is conveyed to the image forming position, the PTOP signal 701 and the ITOP signal 702 shown in FIGS.
Is returned to the scanner device 102 via the printer / video I / F 616. A PTOP signal 701 indicates the leading end position of the recording sheet 703 in the in-track direction.
The signal 702 indicates the leading end position of the recording sheet 703 in the cross track direction. The PTOP signal 701 is one pulse for one page of the recording sheet, and the ITOP signal 702
Is output for each line.

The CPU 617 sets the recording start position in the read address generator 624 before forming an image. Upon receiving the PTOP signal 701, the read address generation unit 624 waits for a delay time set in advance by the CPU 617, and then detects the first detected ITOP signal.
The image data is sent out in synchronization with the signal 702. Thereby, the recording position in the in-track direction with respect to the recording sheet 703 is determined. When pixels of 4800 pixels (one line) are transmitted, the read address generation unit 624 stops generating address values and terminates image reading.

When the next ITOP signal 702 is detected, the image data is transmitted after waiting again as described above. This operation is repeated by the recording length in the in-track direction. If the read address generation unit 624 is set so that image data is not transmitted even when the PTOP signal 701 and the ITOP signal 702 are received, the image is not recorded on the recording sheet and the page is skipped. Will do.

The motor driver 618 drives a motor for the scanner device 102 to read a book and a cooling fan. The sensor signal input unit 619 includes a buffer circuit for receiving signals from various sensors and an A / D conversion circuit. The operation unit I / F 620 transmits and receives various commands, operation modes, and the like from the operation unit 108 (see FIG. 1). The ADF I / F 621 transmits and receives various commands and operation modes to and from the ADF device 101. The computer I / F 622 communicates with a host device such as a computer (not shown) connected to the outside, and sends an original image read by the scanner device 102 to the host device, or creates a document image on the host device. It receives image data such as computer graphics and sends and receives image data to write it to the image memory unit. The interface adopts SCSI which is a standard interface.

Next, a case will be described in which a bundle of originals including originals of different sizes is read by the ADF device 101, copied onto sheets of one size, and bound by the bookbinding device 105.

First, a case where a single-sided original is double-sided copied to form one bookbinding bundle will be described with reference to FIG. A4
A case will be described in which single-sided originals of a size and an A3 size are mixed, all of which are unified to the A4 size, and both-side printing is performed to form one bookbinding bundle.

Prior to the copying operation, the operator operates the operation unit 1
08 (refer to FIG. 1) and set the sheet size when binding
4 is performed. In response to this operation, the operation unit 108 instructs an operation through the operation unit I / F 620 of the scanner device 102.

First, the case of copying and binding one-sided original pages 1 to 9 shown in FIG. 9A will be described. The 1st to 5th pages and 7th to 9th pages of this one-sided original are A4 size,
The sixth page is A3 size. Scan each document
The reading may be performed by the ADF device 101 or the book may be read. Each read original is recorded (printed out) on both sides of a recording sheet as shown in FIG. 9B.
The booklet is then bound by the bookbinding apparatus 105. The document on the sixth page is divided into two A4 size pages (see 6 in FIG. 9B).
a, 6b) Printed. In the case of a single-sided document bundle shown in FIG. 9A, if the document is sequentially copied, the divided document of the sixth page is arranged on the left and right spread pages.

Next, the case of copying and binding one-sided original pages 1 to 9 shown in FIG. 9C will be described. Pages 1 to 4 and pages 6 to 9 of this one-sided original are A4 size,
The page is A3 size. FIG. 9D shows a state where the image is recorded on the recording sheet (printed out). The fifth page of the one-sided original shown in FIG.
The first page (5a in FIG. 9D) is printed not on the front side of the third recording sheet but on the back side, and what is the front side of the third recording sheet? Is also skipped without being printed. The next page (5b in FIG. 9D) is printed on the front surface of the fourth recording sheet, and nothing is printed on the back surface of the sixth recording sheet. This control is performed in order to bring the divided images 5a and 5b in FIG. 9D to the positions of the two-page spreads. All subsequent manuscripts are A4
Because of the size, they are sequentially copied and bound by the bookbinding apparatus 105.

Next, the case of copying and binding the double-sided original pages 1 to 14 shown in FIG. 9E will be described. The first, third, fifth, seventh, eleventh, and thirteenth pages of this double-sided original and the second, fourth, sixth, eighth, twelfth, and fourteenth pages are A4 size, and the ninth and tenth front pages are A3 size. is there. FIG. 9F shows a state where the image is recorded on a recording sheet (printed out). The ninth front page and the tenth back page of the two-sided document of FIG.
The first page of the ninth front page (9a in FIG. 9F) is printed not on the front surface but on the back surface of the fifth recording sheet, and no surface is printed. Will be skipped. Also, the divided back surface 10
The first page of the page (10a in FIG. 9 (f)) is printed on the back side of the sixth recording sheet, not on the front side.
9b) of (f) is printed. Further, the next page of the divided back tenth page (10b in FIG. 9F)
Is printed on the front surface of the seventh recording sheet, and nothing is printed on the back surface of the ninth recording sheet. This control is performed by dividing 9a, 9b and 10a, 1 in FIG.
This is performed in order to bring the image 0b to the position of the two-page spread. Since the subsequent documents are all A4 size, they are sequentially copied and bound by the binding apparatus 105.

Next, a method of dividing an original into two will be described with reference to FIG. 10 by taking an example of dividing an A3-size original into two A4-size copies.

A3 size original 1 in FIG. 10 (a)
It is assumed that the image 1002 is recorded in the original 001, and the longitudinal direction of the original 1001 is simply divided into two from the center in FIG.
As shown in (b), an image 1002 is recorded on the recording sheet 1003.
Consider the case where is printed. In the case of the present embodiment, in the printer device 103, 2 mm at the four corners of the recording sheet is used.
Denotes an area where no image is formed in order to prevent the toner from overflowing due to variations in the size of the recording sheet itself for support for transporting the recording sheet. Manuscript 1001
The lack of images at the four corners of the document 1001 is not a problem because the image is rarely recorded up to the corners of the document 1001. However, when the document 1001 is divided into two, the image missing at the divided portion is not caused. In this case, the image becomes discontinuous, and the appearance becomes extremely poor. Further, in the sheet bundle 201 shown in FIG. 2 bound by the bookbinding apparatus 105 as described above, the edge facing the back bonded by the bind tape 202 is impregnated with an adhesive of about 1 mm. Image cannot be seen.

As described above, in the case of the present embodiment, there are two causes of image omission, but since the image omission caused by the printer device 103 is larger, the A1 size original 1 after bookbinding is used.
When 001 is printed on two-page spread, FIG.
As shown in (c), the binding portion 100 of the recording sheet 1003
3a image is 2 mm per sheet, 4 for both sheets
mm.

Therefore, in the present embodiment, the original 100
When dividing one image 1002, the image 100 around the binding portion 1003a of the recording sheet 1003 used is used.
A reduction process is performed so that 2 is all included. When the A3 size document 1001 is divided into two A4 size recording sheets, the length of the A4 size in the short direction is 210 mm, whereas the image loss caused by the binding portion 1003a is 210-2 = 208 mm. Become.

From this, the reduction ratio is (208/210) × 100 ≒ 99% In order to maintain the aspect ratio, the same reduction processing is performed not only in the short direction of the A4 size but also in the long direction.

FIG. 10D shows this state.
FIG. 10E shows a state in which the image 1002 shown in FIG. 10D is divided into two from the center in the longitudinal direction. Next, the image 1002 thus divided is transferred to the printer 1
When printing is performed in step 03, the recording position is moved. Since the movement of the recording position is as described above, the description is omitted here.

In FIG. 10F, reference numerals 1004 and 1005
Are A4 size recording sheets, 1006 and 1007
Are images recorded on these recording sheets 1004 and 1005. The image is moved from the center in the longitudinal direction and the image 1002 is moved in the short direction so as to be aligned with the opposite side of the bound portion 1003a after bookbinding. To generate a blank portion, and perform printing and bookbinding.

After the bookbinding, as shown in FIG. 10 (g), the image deletion by the printer 103 is 2 mm, whereas the binding margin at the time of bookbinding is 1 mm.
Although a blank portion 1008 of about 1 mm + 1 mm is generated in 3a, a sheet bundle 201 without image loss in the binding portion 1003a can be obtained.

As described above, the document size and the copy size are set to A
However, the present invention is not limited to this, and it is necessary to perform the above-described reduction processing if the image is not lost even if the original is divided into two and a necessary margin is generated. It goes without saying. Conversely, an enlargement process may be performed for easy viewing.

Next, a method for detecting a document size will be described with reference to FIG. First, a document image read by the scanner device 102 (see FIG. 1) is stored in the first image memory 60.
5 and the second image memory 606. Here, the description will be made assuming that the size of the document image stored in the first image memory 605 is detected. However, the same applies to the case where the size of the document image stored in the second image memory 606 is detected. Not even.

The original image is read by the CCD line sensor 313, and the number of read pixels per line is 4,800 pixels (8 bits per pixel × 3). This is the shortest size of the maximum document size A3 (2
97 mm) corresponds to the maximum length in the cross-track direction, and thus corresponds to the number of pixels necessary for reading this length at a resolution of 400 dpi. That is, the read document image is stored in the first image memory 605 in the form shown in FIG.

When reading of one page of the document is completed, C
The PU 617 switches the third memory selection unit 609 to the first image memory 605 to detect the size of the document from the read image data. First, the CPU 617 reads image data at an address corresponding to one line of image data to obtain a document length in the cross-track direction, and obtains a density distribution. The threshold value = (maximum density−minimum density) / 2 is obtained from the obtained density distribution, and the number of pixels in the light portion is obtained.

In this embodiment, in order to obtain a concentration distribution,
The image data of the 40th line is used. FIGS. 12 and 13 show this state.

Next, the CPU 617 obtains the document size in the cross-track direction.
In the case of flow reading by (see FIG. 1), only the image data corresponding to the document length in the cross-track direction is written in the first image memory 605 by the above-described registration sensors 319 and 320 (see FIG. 3). Therefore, the last address written in the first image memory 605 is
17 can be determined by checking (FIG. 12). Therefore, only in the case of book reading, the CPU 617 reads the image data in the first image memory 605 also in the in-track direction and obtains the density distribution.

The original length in the in-rack direction is obtained by the same method as that for obtaining the original length in the cross-track direction. Since the position of the document in the cross-track direction is determined, this is realized by sequentially reading the image data of the 40th pixel from the end position value (FIG. 13). The reason why the document size is detected based on the end part value is that the image is hardly formed at the end, and the document size can be detected stably.

In both the case of the flow reading and the book reading, the original reading surface is a mirror surface, and when there is no original, the original is read by the CCD 313 as optically complete black.

The document size is determined by the above processing. Based on this value, the CPU 617 determines the division position of the image, calculates whether or not the reduction process is necessary as described above, and obtains the image formation position where the necessary margin is obtained.
The case where the present invention is applied to the bookbinding apparatus 105 using the hot-melt type bind tape 202 has been described above, but the present invention is not limited to this, and can be applied to a stapling apparatus, a puncher apparatus, and the like. It goes without saying that it is a thing. Also, not limited to copying machines,
It is needless to say that the present invention can be applied to bookbinding from printing out images and texts from a computer device.

(Second Embodiment) Next, a storage medium used in the image editing apparatus of the present invention will be described with reference to FIGS. FIG. 14 shows a storage medium for storing a program for controlling an image editing apparatus used in an image forming apparatus for sequentially recording image data groups consisting of a plurality of surfaces on both sides of a recording sheet and creating a recording sheet bundle of an arbitrary page. As shown, at least the program code of each of the "document size detection module", "bookbinding size detection module", "comparison module", "split module", "copy module", and "control module" may be stored.

Here, the "document size detection module"
Is a program module for detecting a document size. “Bookbinding size detection module” is a program module for detecting a bookbinding size. The "comparison module" is a program module for comparing the document size detected by the document size detection module with the bookbinding size detected by the bookbinding size detection module. The “division module” is a program module for dividing a read image into two.
The "copy module" is a program module for copying each document image on a copy sheet having the same size as the bookbinding size without missing the image. The “control module” is a program module for controlling the editing so that the copied image divided into two by the division module is continuous at the page boundary between both spread pages after bookbinding.

FIG. 15 stores a program for controlling an image editing apparatus used in an image forming apparatus for sequentially recording image data groups having a plurality of surfaces on both sides of a recording sheet and creating a recording sheet bundle of an arbitrary page. The storage media different from the storage media shown include “split module”, “instruction module”, “margin generation module”, “control module”
The program code of each module may be stored.

Here, the “division module” is an arbitrary one.
This is a program module for dividing image data for one plane into two planes. The “instruction module” is a program module for instructing the division of the image data of one arbitrary surface into two images by the division module. The “margin generation module” is a program module for generating a margin along a division line without missing an image when dividing the image data of one arbitrary surface into two images by the division module. The “control module” is configured to generate the margin and generate one of the divided images when the image of the page immediately before the divided image generated by the margin generation module is recorded on the surface of the recording sheet.
When the first side is recorded on the back side of the recording sheet, the second side is recorded on the front side of the next recording sheet, and the margin is generated, and the image of the page immediately before the divided image is recorded on the back side of the recording sheet. Is the first image of the divided image by skipping the front side of the next recording sheet and generating the margin on the back side.
This is a program module for editing and controlling so as to record a surface and record the second surface on the surface of the next recording sheet.

[0096]

As described in detail above, according to the image editing method and apparatus of the present invention, in the image editing method and apparatus used in the image forming apparatus to which the bookbinding apparatus is connected, the original size is larger than the bookbinding size. Even if a document is included, the large-sized document is divided into two so that it is bound on both spread pages after bookbinding, and the image is not lost at the binding portion during bookbinding. This has the effect that only one type of recording sheet is required for bookbinding, and bookbinding can be performed in an extremely readable state.

Further, according to the storage medium of the present invention, there is an effect that the above-described image editing apparatus can be smoothly controlled.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing a configuration of an image forming apparatus having an image editing apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram for explaining a sheet bundle bound by the apparatus.

FIG. 3 is a vertical sectional side view showing a configuration of a document reading device and a document feeding device in the device.

FIG. 4 is a view for explaining a one-sided document feeding path of the document feeding apparatus.

FIG. 5 is a view for explaining a double-sided document feeding path of the document feeding apparatus.

FIG. 6 is a block diagram showing a circuit configuration of a document reading apparatus in the apparatus.

FIG. 7 is a diagram for explaining image recording timing in the apparatus.

FIG. 8 is a diagram for explaining image recording timing in the same apparatus.

FIG. 9 is a diagram for explaining a method of divided printing of documents of different sizes in the same apparatus.

FIG. 10 is a view for explaining reduction and movement of image data during divided printing in the same apparatus.

FIG. 11 is a diagram for explaining storage of image data in an image memory in the apparatus.

FIG. 12 is a diagram for explaining a density distribution at the time of flowing reading in the same apparatus.

FIG. 13 is a diagram for explaining a density distribution at the time of reading a book in the apparatus.

FIG. 14 is a diagram showing a program code of each module stored in the storage medium of the present invention.

FIG. 15 is a diagram showing a program code of each module different from FIG. 14 stored in the storage medium of the present invention.

[Explanation of symbols]

 Reference Signs List 101 Document feeder (ADF device) 102 Document reader (scanner device) 103 Printer device 104 Sheet discharge port 105 Bookbinding device 106 Stacker 107 Stacker 108 Operation unit 201 Sheet bundle 202 Bind tape 203 Adhesive 301 Document loading tray 302 Lifter drive Motor 303 Sheet feeding roller 304 Registration roller 305 Registration roller 306 Flapper 307 Paper exit port 308 Document illumination lamp 309 Mirror 310 Mirror 311 Mirror 312 Lens 313 Image reading CCD 314 Platen glass 315 Document pressing pressure plate 316 Arrow 317 Separation roller 318 Discharge tray 319 Registration sensor 320 Registration sensor 601 A / D conversion unit 602 Shading correction unit 603 Input masking unit 604 Data Selection unit 605 First image memory 606 Second image memory 607 First memory selection unit 608 Second memory selection unit 609 Third memory selection unit 610 Printer I / F 611 Reduction interpolation unit 612 Enlargement interpolation unit 613 Filter 614 Luminance conversion unit 615 log conversion unit 616 Printer / video I / F 617 CPU 618 Motor driver unit 619 Sensor signal input unit 620 Operation unit I / F 621 ADF I / F 622 Computer I / F 623 Write address generation unit 624 Read address Generator 701 PTOP signal 702 ITOP signal 703 Sheet

Continued on the front page (72) Inventor Akihito Mori 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc.

Claims (20)

[Claims] 1. An image editing method used in an image forming apparatus for sequentially recording image data groups including a plurality of surfaces on both sides of a recording sheet and creating a recording sheet bundle of an arbitrary page,
The original size and the binding size are detected respectively, the detected original size and the binding size are compared, the read image is divided into two, and each original image is copied onto a copy sheet of the same size as the binding size without any image loss. And editing control so that the two divided copies are continuous at the page boundary between both spread pages after bookbinding. 2. The image editing method according to claim 1, wherein the recording sheet is paper. 3. The image editing method according to claim 1, wherein the copy sheet is paper. 4. The image editing method according to claim 1, wherein said image forming apparatus is a copying machine. 5. An image editing method for use in an image forming apparatus for sequentially recording image data groups consisting of a plurality of surfaces on both sides of a recording sheet and creating a recording sheet bundle of a desired page,
When the image data for one surface is divided into two surfaces, and the image of the page immediately before the divided image is recorded on the surface of the recording sheet, the first surface of the divided image is recorded on the recording sheet. Record on the back side, record the second side on the front side of the next recording sheet, and skip the front side of the next recording sheet if the image of the page immediately before the divided image is recorded on the back side of the recording sheet. 1 of the divided image
An image editing method, wherein a face is recorded and a second face is recorded on the surface of the next recording sheet. 6. The image editing method according to claim 5, wherein said recording sheet is paper. 7. The image editing method according to claim 5, wherein said image forming apparatus is a copying machine. 8. An original size detecting means for detecting an original size in an image editing apparatus used in an image forming apparatus for sequentially recording an image data group consisting of a plurality of surfaces on both sides of a recording sheet and forming a recording sheet bundle of an arbitrary page. A binding size detecting unit for detecting a binding size; a comparing unit for comparing the original size detected by the original size detecting unit with the binding size detected by the binding size detecting unit; and a dividing unit for dividing the read image into two. Means, copying means for copying each original image on a copy sheet of the same size as the bookbinding size without image loss, and copying images divided by the dividing means into two at the page boundary between both spread pages after bookbinding. An image editing apparatus, comprising: control means for performing editing control so as to be continuous. 9. The image editing method according to claim 8, wherein the recording sheet is paper. 10. The image editing method according to claim 8, wherein said copy sheet is paper. 11. The image editing apparatus according to claim 8, wherein said image forming apparatus is a copying machine. 12. The apparatus according to claim 12, wherein the document size detecting means includes
(Central processing unit).
An image editing apparatus according to the above. 13. The bookbinding size detecting means includes a CPU
(Central processing unit).
An image editing apparatus according to the above. 14. The image editing apparatus according to claim 8, wherein said comparing means is a CPU (Central Processing Unit). 15. The image editing apparatus according to claim 8, wherein said control means is a CPU (Central Processing Unit). 16. An image editing apparatus used in an image forming apparatus for sequentially recording image data groups consisting of a plurality of surfaces on both sides of a recording sheet and creating a recording sheet bundle of a desired page, wherein image data for one surface is converted into two. Dividing means for dividing the image into pages, and when an image of a page immediately before the image divided by the dividing means is recorded on the front side of the recording sheet, the first side of the divided image is recorded on the back side of the recording sheet When the second side is recorded on the front side of the next recording sheet and the image of the page immediately before the divided image is recorded on the back side of the recording sheet, the front side of the next recording sheet is skipped and the second side is skipped. An image editing apparatus, comprising: control means for performing editing control so as to record the first side of the divided image and to record the second side on the surface of the next recording sheet. 17. The image editing apparatus according to claim 16, wherein said recording sheet is paper. 18. The image editing apparatus according to claim 16, wherein said image forming apparatus is a copying machine. 19. A storage medium for storing a program for controlling an image editing apparatus used in an image forming apparatus for sequentially recording image data groups each having a plurality of surfaces on both sides of a recording sheet and creating a recording sheet bundle of an arbitrary page. A document size detection module for detecting a document size, a book size detection module for detecting a book size, and comparing a document size detected by the document size detection module with a book size detected by the book size detection module. A comparison module, a division module that divides the read image into two, a copy module that copies each original image onto a copy sheet having the same size as the bookbinding size without image loss, and a copy that is divided into two by the division module Editing system so that images are continuous at the page boundary of both spread pages after binding A storage medium storing a program having a control module for controlling the storage medium. 20. A storage medium for storing a program for controlling an image editing apparatus used in an image forming apparatus for sequentially recording image data groups each having a plurality of surfaces on both sides of a recording sheet and creating a recording sheet bundle of an arbitrary page. A dividing module for dividing image data for an arbitrary surface into two surfaces;
When the image of the page immediately before the image divided by the division module is recorded on the front side of the recording sheet, the first side of the divided image is recorded on the back side of the recording sheet and the second side is recorded on the next recording sheet. If the image of the page immediately before the divided image is recorded on the back side of the recording sheet, the front side of the next recording sheet is skipped and the first side of the divided image is recorded on the back side. A storage medium storing a program having a control module for performing recording and editing control so as to record the second side on the surface of a next recording sheet.