JP2000039803A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform paginating at positions where paginating positions are symmetric with respect to a center axis and to perform paginating at the natural position by generating an image to which pagination is applied at a designated position for 1st and 2nd manuscript images and forming it on a medium to be image-formed. SOLUTION: Manuscript image data read by a scanner part 4 is transferred to a page memory 98. In the case of designating the synthesis of a character such as applying the pagination and adding character data to a manuscript image, image synthesis is realized by writing font data stored in a ROM 99 in the page memory 98 by a page memory control part 97 via a system bus in a state where the manuscript image is stored in the page memory 98. For example, when a user designates center-folding/filing copying and paginating and designates the selection part of a display part 84, the pagination is applied to upper outside, upper center, upper inside, lower outside, lower center and lower inside positions for right and left images divided by the center line of copying paper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a digital copying machine having a function of forming an image in which two original images are arranged on the left and right of a center line of an image forming medium.

[0002]

2. Description of the Related Art Conventionally, an image forming apparatus such as a copying machine has a function of performing center-folded copying in which two original images are printed on the left and right with respect to the center line of one copy sheet. There is. In this center-folding copy, two original images are printed on the left and right regions of the copy paper separated by the center line, respectively, and these print results are folded at the center line and bound.
The images of the original are arranged in order like a right-opening or left-opening book.

When a page number is added in this center-folded copy, the page addition position is specified by a position for each document regardless of the center-folded specification.

For this reason, in the case of a copy in which two originals are pasted on the left and right with respect to the center axis of one copy sheet, such as a center-folded copy, the pages are added at the same position on the left and right. This is unnatural compared to the page addition position of a book that is a similar printed matter.

Also, the position where the page is added does not depend on the size of the image to be pasted and the like, and is a fixed position designated based on the paper size. For this reason, since the page position is determined on the basis of the sheet, in the case of an image with a large reduction ratio, the position of the image may be unnaturally separated from the page.

Also, the size of the character font used when adding a page does not depend on the reduction ratio (enlargement ratio) of the original to be pasted, but uses a fixed font size. For this reason, since the size of the font to be used is fixed, the size of the image and the page may not be balanced depending on the reduction ratio of the image to be pasted.

[0007]

As described above, when two original images are paged on the image forming medium on the left and right sides with respect to the center axis to form an image, the pagination position for each original is determined. This eliminates the drawback that pagination is performed at an unnatural position that is not symmetrical with respect to the central axis. The image forming medium is formed by paginating two original images left and right with respect to the central axis. In this case, an object of the present invention is to provide an image forming apparatus in which pagination positions for respective documents can be paginated at positions symmetrical with respect to a central axis, and pagination is performed at a natural position.

[0008]

An image forming apparatus according to the present invention for forming a document image on a medium on which an image is to be formed is provided. A first designation unit for designating addition of a page in a mode for forming an image of each of the two original images, and a page addition position in the mode designated by the first designation unit is set at the center of the image forming medium. A second designating means for designating from various positions at the ends of the first document image and the second document image which are symmetrical with respect to the line, and for the first document image and the second document image, It comprises processing means for generating an image with a page added to the position specified by the second specifying means and forming the image on the image forming medium.

An image forming apparatus according to the present invention forms an original image on a medium on which an image is to be formed. In the image forming apparatus, a first original image and a second original image are arranged right and left with respect to a center line of the image forming medium. Designating means for designating addition of a page in a mode for forming an image, and first originals formed on the left and right with respect to the center line of the image forming medium when the addition of a page is designated by the designating means Judgment means for judging the size of a page to be added according to the magnification at the time of image formation of the image and the second manuscript image, and the first manuscript image and the second manuscript having the size judged by this judgment means The image forming apparatus includes processing means for generating an image with a page added to the image and forming the image on the image forming medium.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a schematic configuration of a digital copying machine 1 as an example of the image forming apparatus of the present invention.

As shown in FIG. 1, the digital copying machine 1 includes an apparatus main body 10, in which a scanner section 4 as image reading means and a printer section 6 functioning as image forming means are provided. Have been.

On the upper surface of the apparatus main body 10, there is provided an original placing table 12 made of transparent glass on which an object to be read, that is, an original D is placed. An automatic document feeder 7 (hereinafter, referred to as an ADF) for automatically feeding the document D onto the document table 12 is provided on the upper surface of the apparatus main body 10. The ADF 7 is provided so as to be openable and closable with respect to the document table 12, and also functions as a document holder for bringing the document D placed on the document table 12 into close contact with the document table 12.

The ADF 7 includes a document feeder table 8 on which a document D is set, an empty sensor 9 for detecting the presence or absence of the document D,
A pickup roller 14 for taking out the documents D one by one from the document feeder 8, a feed roller 15 for transporting the taken out documents D, a pair of aligning rollers 16 for aligning the leading end of the document D, and a pair of aligning rollers Placed manuscript D
A document detection sensor 17 for detecting the length of the document in the transport direction, and a transport belt 18 disposed so as to cover substantially the entire document table 12. The plurality of originals set upward on the original tray 8 are sequentially taken out from the bottom page, that is, the last page, are aligned by the aligning roller pair 16, and are then placed on the transport belt 18. The sheet is transported to a predetermined position on the table 12.

In the ADF 7, a reversing roller 20, a non-reversing sensor 21, a flapper 22, and a paper discharging roller 23 are disposed at an end opposite to the aligning roller pair 16 with the transport belt 18 interposed therebetween. The document D whose image information has been read by the scanner unit 4 described below is sent out from the document table 12 by the conveyance belt 18 and
The ADF 7 is discharged onto a document discharge unit 24 on the upper surface of the ADF 7 via a non-reversing sensor 21, a flapper 22 and a discharge roller 23. When reading the back surface of the original D, the original D transported by the transport belt 18 is inverted by the reversing roller 20 by switching the flapper 22, and is again moved to a predetermined position on the original placing table 12 by the transport belt 18. Sent.

The scanner unit 4 provided in the apparatus main body 10
Is a light source for illuminating the original D placed on the original mounting table 12, for example, an exposure lamp 25 composed of a halogen lamp or the like, and a first mirror 26 for deflecting reflected light from the original D in a predetermined direction. The exposure lamp 25 and the first mirror 26 are attached to a first carriage 27 disposed below the document table 12.

The first carriage 27 is arranged so as to be movable in parallel with the original table 12, and is reciprocated below the original table 12 by a scanner motor (drive motor) 37 via a toothed belt or the like (not shown). You. The scanner motor 37 is configured by a stepping motor or the like.

A second carriage 28 is provided below the document table 12 so as to be movable in parallel with the document table 12. The second carriage 28 has a first mirror 2
Second and third mirrors 30 and 31 for sequentially deflecting the reflected light from the document D deflected by 6 are mounted at right angles to each other. The second carriage 28 receives the rotational force from the scanner motor 37 by means of a toothed belt or the like that drives the first carriage 27, and the first carriage 27
, And is moved in parallel with the first carriage along the document table 12 at a half speed.

An image forming lens 32 for converging the reflected light from the third mirror 31 on the second carriage 28 and receiving the reflected light condensed by the image forming lens 32 are provided below the document table 12. And a CCD sensor 34 for performing photoelectric conversion. The imaging lens 32 is a third mirror 31
Is disposed movably via a drive mechanism in a plane including the optical axis of the light deflected by the light source, and moves to form an image of the reflected light at a desired magnification. Then, the CCD sensor 34
Converts photoelectrically the reflected light incident thereon in accordance with an image processing clock provided from a main CPU, which will be described later, and outputs an electric signal corresponding to the read original D.

On the other hand, the printer section 6 includes a laser exposure device 40 which functions as a latent image forming means. The laser exposure device 40 includes a semiconductor laser 41 as a light source, a polygon mirror 38 as a scanning member for continuously deflecting laser light emitted from the semiconductor laser 41, a polygon motor 39 for rotating and driving the polygon mirror 38, An optical system 42 for deflecting the laser light from the polygon mirror 38 and guiding it to a photosensitive drum 44 described later. The laser exposure apparatus 40 having such a configuration is fixedly supported by a support frame (not shown) of the apparatus main body 10.

The semiconductor laser 41 is turned on / off in accordance with image information of the document D read by the scanner unit 4. The laser light is directed to the photosensitive drum 44 via the polygon mirror 38 and the optical system 42, and scans the peripheral surface of the photosensitive drum 44, thereby causing the photosensitive drum 44 to scan.
An electrostatic latent image is formed on the peripheral surface.

The printer unit 6 has a rotatable photosensitive drum 44 as an image carrier disposed substantially at the center of the apparatus main body 10. And a desired electrostatic latent image is formed. On the peripheral surface of the photosensitive drum 44, a charging charger 45 for charging the drum peripheral surface to a predetermined charge,
A developing device 46 for supplying toner as a developer to the electrostatic latent image formed on the peripheral surface of the photosensitive drum 44 to develop the electrostatic latent image at a desired image density, a transfer material fed from a paper cassette described later, A transfer charger 48 for integrally transferring a toner image formed on the photosensitive drum 44 to the paper P, and a separation charger 47 for separating the copy sheet P from the photosensitive drum 44; A peeling claw 49 for peeling off the copy paper P, a cleaning device 50 for cleaning the toner remaining on the peripheral surface of the photosensitive drum 44, and a static eliminator 51 for removing static on the peripheral surface of the photosensitive drum 44 are arranged in this order.

An upper cassette 52, a middle cassette 53, and a lower cassette 54, which can be pulled out from the apparatus main body, are disposed in a lower part in the apparatus main body 10, and copy papers having different sizes are arranged in each cassette. It is loaded. A large-capacity feeder 55 is provided beside these cassettes, and a large-capacity feeder 55 is provided on the large-capacity feeder 55. The large-capacity feeder 55 includes copy paper P of a frequently used size, for example, A4 size copy paper. P is about 30
00 sheets are stored. Above the large-capacity feeder 55, a paper feed cassette 57 also serving as a manual feed tray 56 is detachably mounted.

In the apparatus main body 10, a transport path 5 extending from each cassette and the large-capacity feeder 55 through a transfer section located between the photosensitive drum 44 and the transfer charger 48 is provided.
8 are formed, and a fixing lamp 60a is provided at the end of the conveyance path 58.
Is provided. Fixing device 60
A discharge port 61 is formed in the side wall of the apparatus main body 10 facing the device, and a finisher 150 is attached to the discharge port 61.

In the vicinity of the upper cassette 52, the middle cassette 53, the lower cassette 54, the paper cassette 57 and the large capacity feeder 55, there are provided pickup rollers 63 for taking out the sheets P one by one from the cassette or the large capacity feeder. Have been. The transport path 58 is provided with a number of paper feed roller pairs 64 for transporting the copy sheet P taken out by the pickup roller 63 through the transport path 58.

A pair of registration rollers 65 is provided upstream of the photosensitive drum 44 in the transport path 58. The registration roller pair 65 corrects the inclination of the copy paper P taken out, aligns the leading end of the toner image on the photosensitive drum 44 with the leading end of the copy paper P, and adjusts the moving speed of the peripheral surface of the photosensitive drum 44 to The copy paper P is fed to the transfer unit at the same speed. A pre-alignment sensor 66 for detecting the arrival of the copy sheet P is provided in front of the registration roller pair 65, that is, on the side of the feed roller 64.

The copy paper P taken out one by one from each cassette or the large-capacity feeder 55 by the pickup roller 63 is sent to the registration roller pair 65 by the paper supply roller pair 64. Then, the copy paper P is sent to the transfer section after the leading end is aligned by the registration roller pair 65.

In the transfer section, the developer image formed on the photosensitive drum 44, that is, the toner image, is transferred onto the sheet P by the transfer charger 48. The copy paper P on which the toner image has been transferred is separated from the peripheral surface of the photosensitive drum 44 by the action of the separation charger 47 and the separation claw 49,
The sheet is conveyed to the fixing device 60 via a conveyance belt 67 constituting a part of the conveyance path 52. Then, after the developer image is fused and fixed to the copy paper P by the fixing device 60, the copy paper P is discharged onto the finisher 150 through the discharge port 61 by the paper feed roller pair 68 and the paper discharge roller pair 69.

Under the transport path 58, the copy sheet P passing through the fixing device 60 is turned over,
5 is provided with an automatic double-sided device 70 for feeding. The automatic duplexing device 70 includes a temporary stacking unit 71 for temporarily stacking the copy sheets P, and a reversing path 72 that branches off from the transport path 58 and reverses the copy sheet P that has passed through the fixing device 60 and guides the copy sheet P to the temporary stacking unit 71. A pickup roller 73 for taking out the copy papers P accumulated in the temporary accumulation section one by one; and a paper feed roller 75 for feeding the taken out paper to a pair of registration rollers 65 through a transport path 74. Also, the transport path 58
The copy paper P is provided at a branch portion between the
A distribution gate 76 for selectively distributing to one or the inversion path 72 is provided.

When performing double-sided copying, the copy paper P that has passed through the fixing device 60 is guided to a reversing path 72 by a sorting gate 76, is temporarily accumulated in a reversed state in a temporary accumulation section 71, and is then picked up. The sheet is sent to a pair of registration rollers 65 through a conveyance path 74 by a roller 73 and a pair of sheet feeding rollers 75. Then, after the copy paper P is aligned by the registration roller pair 65, the copy paper P is sent to the transfer unit again, and the toner image is transferred to the back surface of the copy paper P. Thereafter, the copy sheet P is discharged to the finisher 150 via the transport path 58, the fixing device 60, and the discharge roller 69.

The finisher 150 is for stapling and storing the partially discharged documents in a unit. Then, the copy paper P that has been stapled is completed.
Alternatively, the copy paper P on which stapling is not performed is transferred to the finisher discharge tray 1 by the finisher discharge roller 155.
It is discharged to 54. The amount by which the finisher discharge tray 154 is lowered is determined to some extent by the number of copy sheets P to be discharged, and is lowered stepwise every time a part of the copy paper P is discharged.

An operation panel 8 for instructing various copying conditions and starting copying is provided on the upper front of the apparatus main body 10.
0 is provided. As shown in FIG. 2, the operation panel 80 includes a numeric keypad 81, a copy key 82, and a status display section 8.
3, liquid crystal display section 84, original size setting key 85, paper size setting key 86, density display section 87, density setting key 8
8 and a magnification setting key 89.

The ten keys 81 are used to set the number of documents and the number of copies. The ten keys 81 include a clear / stop key 81 for clearing the input number of documents and the number of copies, and for interrupting a copy operation during a copy operation.
a is provided.

The copy key 82 is for instructing the start of copying. The status display unit 83 is for guiding and displaying the selection status of the paper feed cassette, a document, a paper jam, and the like.

The liquid crystal display section 84 displays the number of originals and the number of copies, displays an error message, and provides various operation guidance. The liquid crystal display section 84 includes
A touch panel 84a is provided. When a page is added to a copy image using the touch panel 84a, the user can specify the page addition position or print two original images in left and right regions divided by the center line of the copy sheet P, respectively. It is designed to specify whether the order of the original images to be copied in the fold binding copy or the center fold copy is right-opening or left-opening.
Here, the center-stitched copy refers to, for example, FIGS.
As shown in FIG. 2, by printing original images in the left and right areas separated by the center line of the copy paper, respectively, the print result can be folded back at the center line and bound to create a book-like printed matter. Mode. Also, in the center-folded copy, whether the print result obtained by folding and binding the print result at the center line is printed in the order of right or left is designated.

The document size setting key 85 is for setting the size of the document D. The paper size setting key 86 is
This is for setting the size of the paper P. Density display section 87
Indicates the copy density set by the density setting key 88.

A magnification setting key 89 is for setting a copy magnification. FIG. 3 shows the digital copying machine 1 shown in FIG.
FIG. 1 is a block diagram schematically showing a signal flow for electrical connection and control.

According to FIG. 3, in the digital copying machine 1,
The printer CPU of the printer unit 6 including the main CPU 91 in the main control unit 90 and the scanner CPU 100 of the scanner unit 4
It comprises 110 CPUs. Main CPU 91
Performs bidirectional communication with the printer CPU 110 via the shared RAM 95. The main CPU 91 issues an operation instruction, and the printer CPU 100 returns a status. The printer CPU 110 and the scanner CPU 100 perform serial communication, and
10 issues an operation instruction, and the scanner CPU 100 returns a status status.

In the operation panel 80, a print key 82 and a liquid crystal display section 84 are connected to a panel CPU 80a connected to the main CPU 91, and overall control such as control of display contents of the liquid crystal display section 84 and processing of input contents is performed. Done.

The main control unit 90 includes a main CPU 91, an RO
M92, RAM 93, NVM 94, shared RAM 95, image processing unit 96, page memory control unit 97, and page memory 98.

The main CPU 91 controls the entire main control section 90. The ROM 92 stores various control programs and control data such as a control program for reading a document with respect to the temperature detected in the scanner unit 4.
The RAM 93 temporarily stores data.

NVM (lasting random access memory: n)
The on-volatile RAM 94 is a non-volatile memory backed up by a battery (not shown), and retains data on the NVM 94 when the power is turned off.

The shared RAM 95 is used for performing bidirectional communication between the main CPU 91 and the printer CPU 110. The image processing unit 96 performs trimming, masking, enlargement and reduction of an image, and the like.

The page memory control section 97 stores and reads out image data in the page memory 98, and synthesizes characters such as page fonts with the image data in the page memory 98.

The ROM 99 stores character data of a page number used when a page is added, and character data of three font sizes of 5 points, 10 points, and 15 points.

The scanner unit 4 includes a scanner CPU 100 for controlling the entire scanner unit 4, a ROM 101 storing a control program and the like, and a RAM 10 for storing data.
2. CCD driver 10 for driving CCD sensor 34
3. A scanner motor driver 104 that controls the rotation of a scanner motor 37 that moves the first and second carriages 27 and 28 on which the exposure lamp 25 and the mirrors 26, 30, and 31 are mounted, and the main CPU 91 via the scanner CPU 100. An image correction unit 105 that performs image correction such as shading correction for correcting a threshold level fluctuation with respect to an output signal from the CCD sensor 34 based on a given image processing clock, and an exposure lamp 25
And an exposure lamp control unit 106 for controlling the amount of power of the exposure lamp 25 by controlling the amount of electric power applied to the exposure lamp 25.

The printer unit 6 includes a printer CPU 110 for controlling the entire printer unit 6, a ROM 111 for storing control programs and the like, and a RAM 11 for data storage.
2. Laser driver 113 for turning on / off light emission by semiconductor laser 41, polygon motor driver 11 for controlling rotation of polygon motor 39 of laser unit 40
4. paper transport unit 115 for controlling transport of paper P by transport path 58, charging device 45, developing device 46, transfer charger 4
Developing process unit 11 for performing charging, developing, and transferring using 8
6, a fixing control unit 117 for controlling the fixing unit 60, and an option unit 118.

The image processing section 96 and the page memory 9
8. The image correction unit 105 and the laser driver 113 are connected by an image data bus 120. FIG. 4 is a diagram for explaining a process when a character such as a page number is combined with a document image.

That is, as shown in FIG. 4, image data of a document read by the scanner unit 4 is transferred to the page memory 98 via an image data bus (input image bus) 120. Here, when the original image and the characters are not combined, the image stored in the page memory 98 is sent to the printer unit 6 via the image data bus (output image bus) 120 and printed.

When a character combination such as page addition is specified and character data is added to the original image, the font data stored in the ROM 99 is stored in the page memory 98 while the original image is stored. The image composition is realized by writing the data at an appropriate position in the page memory 98 by the page memory control unit 97 via the bus. The image data after the image synthesis is sent to the printer unit 6 via the image data bus (output image bus) 120 and printed.

FIG. 5 shows a designation screen for selecting a page addition position in a normal copy mode other than the center-folding copy. When a page addition position is specified in the normal copy mode and the user specifies page addition using the operation panel 80, the display unit 84 of the operation panel 80 displays the position where the page is added as shown in FIG. A screen for designating from six types of positions, ie, upper left, upper center, upper right, lower left, lower center, and lower right, is displayed. Then, when the user specifies the selected part displayed on the display unit 84 by using the touch panel 84a, based on the page addition position specified by the user, as shown in FIG. Characters indicating page numbers are added to the positions of upper center, upper right, lower left, lower center, and lower right, respectively, and printed.

FIG. 7 shows a screen for specifying the page addition position when the center stapling copy mode is specified. When the user designates page addition in a state where center-folding copy has been designated on the operation panel 80, as shown in FIG. A designation screen for designating from six types of positions, outer, upper center, upper inner, lower outer, lower center, and lower inner, is displayed.

When the user specifies the selected portion displayed on the display section 84 by using the touch panel 84a, as shown in FIG. 8, the right and left images divided by the center line of the copy paper are Pages are added at the top center, top inside, bottom outside, bottom center, and bottom inside positions.

Next, the process of setting the page addition position will be described with reference to the flowchart shown in FIG. That is, when a user adds a page to a copy image,
A mode for adding a page is selected by the operation panel 80. Then, the main CPU 91 determines whether or not the center stapling copy mode is designated (step S
1).

If the center-folded copy is designated by this determination, the main CPU 91 displays a screen for specifying the position where the page for the center-folded copy is added as shown in FIG. 7 on the display unit 84 ( Step S2). Also,
If the center-folded copy is not specified, the main CP
U91 displays a page addition position designation screen in the normal copy mode as shown in FIG. 5 on the display unit 84 (step S4).

When the user specifies a position to add a page from these displays, the main CPU 91 determines a position to add a page in accordance with the user's instruction (step S3).

Next, a process of adding a page when the center stapling copy mode is designated will be described with reference to a flowchart shown in FIG. That is, the right or left opening of the center-folded copy is designated by the user,
When page addition is specified in this state, the main CPU
Reference numeral 91 displays a screen for specifying a page addition position as shown in FIG. Then, the user designates a position to which a page is to be added by pressing a selected portion on the touch panel 84a from among six types of positions: upper outer, upper central, upper inner, lower outer, lower central, and lower inner. Then, when the user instructs the start of copying, the main CPU 91 determines whether the designation of the center-folded copy is right-open or left-open (step S).
11).

If the main CPU 91 determines that the current page is the right page, it determines whether the current page is an odd page or an even page (step S1).
2). When it is determined that the page is an odd page,
The main CPU 91 determines at which position in the image a page is to be added by designating the page addition position.

That is, when the page addition position is specified as "outside" (step S13), a page is added to the upper right of the image (step S19). If the page addition position is specified as the upper center (step S14), a page is added to the upper center of the image (step S20). If the page addition position is specified as "Upper Inn" (step S15),
A page is added to the upper left of the image (step S21). When the page addition position is specified as bottom outside (step S
16) Add a page to the lower right of the image (step S2)
2). If the page addition position is designated as the lower center (step S17), a page is added below the center of the image (step S23). If the page addition position is specified as lower inside (step S18), a page is added to the lower left of the image (step S24).

If it is determined in step S12 that the page is an even page, the main CPU 91 determines that the page addition position is outside the top (step S25).
A page is added to the upper left of the image (step S31). If the page addition position is designated as the upper center (step S26), a page is added to the upper center of the image (step S32). If the page addition position is specified as upper in (Step S27), a page is added to the upper right of the image (Step S33). If the page addition position is specified to be below the bottom (step S28), a page is added to the lower left of the image (step S34). If the page addition position is specified as the lower center (step S29), a page is added below the center of the image (step S35). If the page addition position is specified as lower inside (step S30),
A page is added to the lower right of the image (step S36).

If it is determined in step S11 that the center-folding is not left-opened, the center-folding is right-opened. In this case, the page addition position in steps S13 to S36 is determined. To add the page in the opposite position.

For example, when four-sided originals are designated to be center-folded and left-open, and the page addition position is designated as bottom-out, the number indicating the page as shown in FIGS. Is added below the outside of the sheet on which each document image is printed.

As described above, the addition position of the page with respect to the image to be printed at the time of the center-stitched copy is set to the top, outside, top center,
Designate from 6 types of positions: upper inner, lower outer, lower center, lower inner,
Based on this specification, the top and bottom, top center, top inside, bottom outside,
A page is added in the lower center and lower part.

As a result, the position of the page to be added becomes the same as the printing position of the page of a general book that is familiar at the time of center-folding copy, and the unnatural appearance can be eliminated.

Further, instead of determining the pagination position on the copy sheet, the pagination position is determined on the image to be printed, the pagination is combined with the print image to create the print image, and the printing is executed. It was done.

Therefore, the pagination position does not become an unnatural position with respect to the image to be printed, and the pagination can be performed at a natural position with respect to the image. Next, a process of selecting a font size when a page is added will be described with reference to a flowchart shown in FIG.

That is, three types of fonts, for example, 5 points, 10 points, and 15 points, are prepared according to the image to be enlarged or reduced for the font used in the page addition.

When the page addition is designated by center-folding copy and the copy start is instructed, the main CPU 91
The magnification of the image to be pasted by center-fold stitching copy is calculated based on the size of the original and the size of the copy sheet (step S41). Thereby, when the magnification of the image is calculated,
It is determined whether the magnification is 130% or more (step S42). If it is determined that the magnification of the image is 130% or more, a font of 15 points is selected as the font size of the page (step S4).
5).

When it is determined that the image magnification is not 130% or more, it is further determined whether the image magnification is 69% or less (step S43). If it is determined that the magnification of the image is 69% or more, a font of 5 points is selected as the font size of the page (step S46).

When it is determined that the magnification of the image is neither 130% or more and 69% or less, the magnification of the image is 70% or less.
% To 129%. In this case, a font of 10 points is selected as the font size of the page (step S44).

As described above, when it is 130% or more, 1
In the case of 5 points, 70% to 129%, a font of 10 points is selected, and in the case of 69% or less, a font of 5 points is selected. In other words, the size of the characters on the page is determined according to the magnification of the image to which the page is added,
The page is provided with the size of the character determined by this determination.

Thus, by selecting the size of the font used for page addition based on the magnification at the time of pasting the image to be pasted, the size of the pasted image and the size of the page to be added can be balanced.

[0072]

As described above in detail, according to the present invention, two original images are formed on the image forming medium on the left and right sides with respect to the central axis, and a page is added to the original images. In this case, it is possible to provide an image forming apparatus in which the pagination position can be symmetrical with respect to the central axis, and the pagination position of the print result does not become unnatural.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a schematic configuration of a digital copying machine according to an embodiment of the present invention.

FIG. 2 is a plan view showing a configuration of an operation panel.

FIG. 3 is a block diagram showing a schematic configuration of a control system of the digital copying machine.

FIG. 4 is a diagram for explaining a case where characters are combined with an image.

FIG. 5 is a diagram showing a display example of a page addition designation screen in normal copying.

FIG. 6 is a view showing a page addition position designated on the page addition designation screen of FIG. 5;

FIG. 7 is a view showing a display example of a page addition designation screen in center-folded copy.

FIG. 8 is a diagram showing a page addition position designated on the page addition designation screen of FIG. 7;

FIG. 9 is a flowchart for explaining a page addition setting process.

FIG. 10 is a flowchart illustrating a process of adding a page to an image in the center-folded copy.

FIG. 11 is a diagram illustrating an example of a print result when pages are added by center-folding copy.

FIG. 12 is a diagram illustrating an example of a print result when pages are added by center-folding copy;

FIG. 13 is a flowchart illustrating a process of adding a page having a font size according to the size of an image.

[Explanation of symbols]

 2 Main control unit 6 Printer unit 80 Operation panel 84 Display unit 84a Touch panel 91 Main CPU 97 Page memory control unit 98 Page memory 120 Image bus

Claims (2)

[Claims] 1. An image forming apparatus for forming a document image on a medium on which an image is to be formed, wherein a first document image and a second document image are formed left and right with respect to a center line of the image forming medium. First designating means for designating page addition in the mode, and a first position symmetrical with respect to the center line of the image forming medium, the position of page addition in the mode designated by the first designating means. Second designating means for designating from various positions at the ends of the manuscript image and the second manuscript image; and designation by the second designating means for the first manuscript image and the second manuscript image. Processing means for generating an image having a page added at a predetermined position and forming the image on a medium on which an image is to be formed. 2. An image forming apparatus for forming an original image on an image forming medium, wherein a first original image and a second original image are formed left and right with respect to a center line of the image forming medium. Designating means for designating page addition in a mode; and a first original image and a first document image formed on the left and right with respect to the center line of the image forming medium when the page addition is designated by the designating means. Determining means for determining the size of a page to be added according to the magnification at the time of image formation of the second document image; and determining the size of the first document image and the second document image with the size determined by the determining means. Processing means for generating an image to which a page has been added and forming the image on the image forming medium.