JPH05347701A - Double-sided synthetic copying device - Google Patents

Abstract

PURPOSE:To ensure the highly efficient copying jobs together with improvement of the document space effect by copying both side image information on a double-sided original on one or both sides of a copying form after variable power processing. CONSTITUTION:A mode where the images of a double-sided original are synthesized together and recorded on one of both sides of a copying form (1), a mode where the images of the first double-sided original and then the images of the second double-sided original are recorded on the other side of the copying form after reduction and synthesization (2), or another mode is decided. The control data are set at '0' in the mode (1) and then at '1' in the mode (2) and stored in a memory respectively. Then the image information on both sides of the original are read by the memory and copied after the variable power synthesization processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided composite copying apparatus, and more particularly to a copying apparatus for performing variable-magnification recording of front and back image information of a double-sided original on one side of a copy sheet.

[0002]

2. Description of the Related Art In a conventional image processing apparatus such as a copying machine, a combination of an image of an original image and a copy to be copied onto a copy sheet includes basic single-sided original to single-sided copying and single-sided original to double-sided copying. The above three modes, that is, double-sided original to double-sided copying and double-sided original to single-sided copying, have been considered and commercialized. Among the above modes, above
The double-sided copy from the single-sided original or the double-sided original mentioned above is a copy mode which is often used because it reduces the amount of the document file and the space of the document.
As a special case, a method of reducing and recording a plurality of original images on one surface of a sheet has been proposed. For example, "information recording device" in Japanese Patent Publication No. 56-33752.
Describes an image recording apparatus for collectively recording recording data of a plurality of pages recorded in an external device on one copy sheet.

[0003]

When double-sided copying is performed from a single-sided original or a double-sided original by a conventional copying apparatus, if the document is copied over both sides of one copy sheet, the document becomes difficult to see. There is. For example, this is the case when it is desired to view the image information of the originals while comparing them. In order to eliminate such a problem, a method of reducing and recording a plurality of original images on one surface of a copy sheet is conceivable. However, when this method is processed using a conventional copying machine, the operator has to make full use of the reduction / composite mode operation to perform copying, which is a very complicated work and difficult. ..

Further, as in the above-mentioned conventional information recording apparatus, a method of reducing and recording a plurality of original images on one side of a copy sheet simply reduces the image data of one sheet, and then reduces the image data of one sheet. Since it is only recorded on a copy sheet, the image is not recorded collectively except in special cases, and the image is difficult to see as it is. Also, in order to improve the space efficiency of the document file, the front and back images of the first double-sided original are collectively recorded on the front surface of one copy sheet,
Further, it may be required to collectively record the second double-sided original on the back surface of the copy break, but the image recording apparatus described above does not describe this method at all.

[0005]

In order to solve the above-mentioned problems, the present invention (1) an image reading section for reading an image of a double-sided original having an image on each of the front and back sides, and an image reading section read by the image reading section. An image information storage unit that stores double-sided document image information, and an image information processing unit that processes front and back image data so that a plurality of sides of the document image information stored in the image information storage unit are formed on one sheet of paper. And an image information recording unit for recording the final image edited by the image information processing unit on a sheet, or (2) an image reading unit for reading an image of a double-sided original having images on both front and back sides. When,
An image information storage unit that stores a plurality of double-sided original image information items read by the image reading unit, and a plurality of original document image information items stored in the image information storage unit are formed on a single sheet of paper. An image information processing unit that processes image data of the front and back,
A front-back reversing conveyance means for recording the final image edited by the image information processing section on the first side of the sheet, reversing the front side of the sheet having the image information recorded on the first side, and conveying the sheet again to the image recording section. And an image information recording section for recording the next edited final image on the second side of the sheet whose front and back are reversed.

[0006]

Operation: An image is formed by adding a processing mode in which the front and back image information of a double-sided original is scaled on one side of a copy sheet and simultaneously recorded. As a result, the operator can obtain a desired copy only by setting the both-sided originals on the original tray of the automatic original feeder, thereby improving the efficiency of the copying work.

[0007]

1 is a view for explaining an embodiment of a double-sided document automatic feeding apparatus in a double-sided composite copying apparatus according to the present invention. In the figure, 1 is a paper feed tray, 2 is a paper feed roller, and 3a. ，
3b is a roller pair, 4a and 4b are roller pairs (delivery means),
5 is a branch selection unit, 6a and 6b are conveying roller pairs, and 7a and 7
b is a pair of transport rollers, 8 and 10 are forward and reverse rollers, 9 is a business card (postcard) tray, 11a and 11b are transport rollers (take-in means), 12 is a transport path (substantially semi-cylindrical with a curved surface), 13a. , 13b are a pair of paper discharge rollers, 14 is a paper discharge tray, and the automatic double-sided document feeder is composed of the above parts.

Next, the operation of each of the above components will be described.
Multiple originals are stacked in the paper feed tray 1,
The original on the paper feed tray 1 is taken up by the paper feed roller 2 to the position of the pair of rollers 3a and 3b for preventing taking in two sheets. The roller pair 3a, 3b is a roller pair for preventing two originals from being fed, the upper roller 3a rotates in the document conveying direction (clockwise), and the lower roller 3b is the upper roller 3a. And in the opposite direction (clockwise, that is, the direction opposite to the document conveyance direction). Therefore, when a plurality of originals are taken in by the paper feed roller 2, the lower original is repelled by the lower roller 3b and only the uppermost original is taken in. Conveying roller pairs 4a and 4b for sending out the document are arranged downstream of the roller pairs 3a and 3b. The document fed from the pair of transport rollers 4a and 4b is transported by the branch selection unit 5 in one direction selected from the two transport directions based on the type of document scanning.

That is, when only the back surface of the document is scanned by the scanning surface 16 or when the second surface (back surface) of both surfaces of the document is scanned, the conveying roller pair 4a, 4b is located downstream in one direction. , A pair of conveying rollers 6a and 6b for synchronously conveying the original from the right side as the second side of the scanning surface 16 (right-hand direction in the drawing) to the left side as the first side (left-hand direction in the drawing). Are arranged. Further, when the first surface (front surface) of both sides of the document is scanned by the scanning surface 16, the pair of transport rollers 4 selected by the branch selection unit 5 is selected.
A pair of transport rollers 7a, 7b for synchronously transporting the document from the left to the right of the scanning surface 16 is arranged downstream of the other sides of a and 4b. Further, a forward / reverse rotation roller 8 is arranged on the scanning surface 16 so that the original can be conveyed in either the left or right direction. The downward surface of the original set on the paper feed tray 1 is conveyed onto the scanning surface 16 by the synchronous conveyance roller pairs 6a and 6b and the forward / reverse rotation roller 8 so that it can be read, while the upward surface is conveyed for synchronization. Roller pair 7a, 7
It is reversed by b and the reverse rotation roller 8 and is conveyed onto the scanning surface 16 so that it can be read.

On the left side of the scanning surface 16 in the drawing, the business card tray 9 is provided.
A forward / reverse rotation roller 10 for transporting the business card from the business card tray 9 onto the scanning surface 16 is arranged. Downstream of the forward / reverse rotation roller 8 (to the right in the drawing), when scanning the first surface (front surface) of both sides of the document, a branch selection unit 17 for branching the transport direction into two directions is provided for the transport roller pair 11a, 11b. It is located downstream. A discharge tray 15 for business cards and postcards is arranged in one direction downstream (rightward in the drawing) of the pair of transport rollers 11a and 11b that can be selected by the branch selection unit 17. Conveyor roller pair 1 that can be selected by the branch selection unit 17
A transport path 12 serving as a guide having a substantially semi-cylindrical shape is arranged in the other direction downstream of 1a and 11b. Transport path 12
1 has a substantially semi-cylindrical shape so as to form a part of a protruding curved surface, as shown in FIG.
Is movable according to the size of the document detected by the sensor S7 (that is, the length in the transport direction), and the length of the transport path 12 is changed so that the front and back of the document can be reversed at a predetermined timing. can do. Further, in the conveyance path 12 whose length has been changed, the end portion of the document whose front and back are reversed is the sensor S6.
It is configured to return to the neutral position when detected by the. Downstream of the transport path 12 (leftward in the figure)
Includes a pair of conveyance rollers 4a for controlling the original direction described above.
4b is arranged.

When only one side of the original is scanned on the scanning surface 16 or when the second side of both sides of the original is scanned, the conveyance path in the linear direction of the original is provided downstream of the forward / reverse rotation roller 8 (upper left in the figure). A pair of discharge rollers 13a and 13b is arranged to shorten the length and to reverse the document so as to face the scanned surface upward and discharge the document to the outside. The documents discharged to the pair of discharge rollers 13a and 13b are sequentially stacked on the discharge tray 14 from the bottom. The transport roller 6 described above
Upstream of a, 6b, 7a, 7b, 11a, and 11b, sensors S6, S7, for detecting the position of the original document, respectively.
S1 is arranged. By the detection signals of the sensors S6, S7, S1, the pair of conveyance rollers 4a, 4 for controlling the direction
b, 11a, 11b branching direction, synchronization carrying roller 6
The drive timings of a, 6b, 7a and 7b and the drive direction of the forward / reverse rotation roller 8 are controlled.

FIG. 2 is a block diagram showing a schematic structure of a guide section 21 which constitutes a main part of the double-sided document feeder of FIG. 1. In the figure, 21 is a guide section, 22 is a document size control section,
Reference numeral 23 is a drive unit. As shown in FIG. 2, the guide unit 21 as a reversing unit is connected to the document size determination unit 22 connected to the sensor S7, the drive unit 23 connected to the document size determination unit 22 and the sensor S6, and the drive unit 23. The transport unit 12 is provided. Hereinafter, the guide portion 21 of FIG.
The operation of each part constituting the above will be described.

The document size discriminating section 22 receives a signal representing the size of the document output from the sensor S7, and discriminates the size (size) of the document detected by the sensor S7 based on the input signal. .. The drive unit 23 is configured by inputting a signal indicating a determination result by the document size determination unit 22 and moving the transport path 12 by a predetermined displacement amount according to the input determination result. Further, the drive unit 23
When a signal is input from the sensor S6 that has detected the end of the document, drives the conveyance path 12 to return to the neutral position based on the input signal.

FIG. 3 is a cross-sectional view showing the overall construction of a digital copying machine which is an embodiment of a double-sided image forming apparatus equipped with a sheet conveying device according to the present invention. The digital copying machine 30 includes a scanner section. 31, a laser printer unit 32, a multi-stage paper feeding unit 33, and a sorter 34 are provided.
The scanner unit 31 includes a document table 35 made of transparent glass,
It is composed of an automatic document feeder (RDF) 36 for double-sided and a scanner unit 40. Multi-stage paper feeding unit 3
3 has a first cassette 51, a second cassette 52, a third cassette 53, and a fifth cassette 55 that can be added by selection. In the multi-stage sheet feeding unit 33, the sheets are sent out one by one from the sheets stored in the cassettes of the respective stages and are conveyed toward the laser printer unit 32. RDF
Reference numeral 36 sets a plurality of originals at once, automatically feeds the originals one by one to the scanner unit 40, and causes the scanner unit 40 to read one side or both sides of the original according to an operator's selection. .. The scanner unit 40 forms a lamp reflector assembly 41 for exposing a document, a plurality of reflection mirrors 43 for guiding a reflected light image from the document to a photoelectric conversion element (CCD) 42, and a reflected light image from the document on the CCD 42. It includes a lens 44 for making it.

When scanning a document placed on the document placing table 35, the scanner section 31 is configured to read the document image while the scanner unit 40 moves along the lower surface of the document placing table 35. When the RDF 36 is used, the document image is read while the document is being conveyed while the scanner unit 40 is stopped at a predetermined position below the RDF 36. The image data obtained by reading the original image with the scanner unit 40 is sent to the image processing unit and subjected to various processes, and then temporarily stored in the memory of the image processing unit, and the image data in the memory is stored according to the output instruction. The data is given to the laser printer unit 32 to form an image on a sheet.

The laser printer unit 32 includes a manual document tray 45, a laser writing unit 46, and an electrophotographic process unit 47 for forming an image. The laser writing unit 46 is a semiconductor laser that emits a laser beam according to the image data from the above-described memory, a polygon mirror that deflects the laser beam at a constant angular velocity, and a laser beam that is deflected at a constant angular velocity is exposed by the electrophotographic process section 47. Body drum 48
It has an f-θ lens and the like for performing correction so as to have a uniform velocity tendency. The electrophotographic process section 47 comprises a charging device, a developing device, a transfer device, a peeling device, a cleaning device, a static eliminator, and a fixing device 49 around the photosensitive drum 48 according to a well-known mode. A transport path 50 is provided on the downstream side of the fixing device 49 in the transport direction of the sheet on which the image is to be formed, and the transport path 50 communicates with the sorter 34.
And a conveyance path 58 leading to the multi-stage sheet feeding unit 33.

The conveying path 58 is branched in the multi-stage sheet feeding unit 33, and the reversing conveying path 50 is formed as a conveying path after branching.
a and a double-sided / composite transport path 50b are provided. The reverse conveyance path 50a is a conveyance path for reversing the front and back sides of a sheet in the double-sided copy mode for copying both sides of a document. The double-sided / composite conveyance path 50b conveys a sheet from the reverse conveyance path 50a to the image forming position of the photosensitive drum 48 in the double-sided copy mode, or forms an image of different originals or images of different colors on one side of the sheet This is a conveyance path for conveying the sheet to the image forming position of the photosensitive drum 48 without reversing the sheet in the single-sided composite copying mode for copying.

The multi-stage sheet feeding unit 33 includes a common conveyance path 56, and the common conveyance path 56 includes the first cassette 51 and the second cassette 51.
The sheets from the cassette 52 and the third cassette 53 are configured to be conveyed toward the electrophotographic process section 47. The common transport path 56 joins the transport path 59 from the fifth cassette 55 on the way to the electrophotographic process section 47, and communicates with the transport path 60. The conveyance path 60 merges with the conveyance path 61 from the double-sided / composite conveyance path 50b and the manual feed tray 45 at a confluence point 62 to reach an image forming position between the photosensitive drum 48 of the electrostatic photography process section 47 and the transfer device. The confluence point 62 of these three transport paths is provided at a position close to the image forming position. Therefore, in the laser writing unit 46 and the electrophotographic process section 47, the image data read from the above-mentioned memory is
The toner image formed as an electrostatic latent image on the surface of the photoconductor drum 48 by scanning the laser beam by the laser writing unit 46 and visualized with toner is the toner image of the sheet conveyed from the multi-stage sheet feeding unit 33. It is electrostatically transferred and fixed on the surface. The sheet on which the image is formed in this manner is sent from the fixing device 49 to the sorter 34 via the transport paths 50 and 57, or is transported to the reverse transport path 50a via the transport paths 50 and 58.

Next, the configuration and function of the image processing unit and each control system included in the digital copying machine 30 will be described. FIG. 4 is a block diagram of the image processing section and each control system included in the digital copying machine 30 with a facsimile function shown in FIG. The image processing unit included in the digital copying machine 30 includes an image data input unit 70, an image processing unit 71, an image data output unit 72, a memory 73 including a RAM (random access memory), and an image processing central processing operation. A device (CPU) 74 is provided.

The image data input section 70 is a CCD section 70a,
It includes a histogram processing unit 70b and an error diffusion processing unit 70c. The image data input unit 70 is the CCD 42 of FIG.
Binary conversion of the image data of the original read from
While taking a histogram as a binary digital amount, the image data is processed by the error diffusion method and temporarily stored in the memory 73. That is, the CCD unit 70
In a, an analog electrical signal corresponding to each image density of image data is A / D converted, and then MTF (Modulation Trans
fer function) correction, black-and-white correction, or gamma correction is performed, and is output to the histogram processing unit 70b as a digital signal of 256 gradations (8 bits). In the histogram processing unit 70b, the digital signal output from the CCD unit 70a is added for each pixel density of 256 gradations to obtain density information (histogram data), and if necessary, the obtained histogram data is subjected to image processing. CPU74
Error diffusion processing unit 70c that is sent to
Sent to. The error diffusion processing unit 70c uses the error diffusion method, which is a kind of pseudo-halftone processing unit, that is, a method of reflecting the binarization error in the binarization determination of the adjacent pixels.
8 bit / pixel digital signal output from 0a is 1
It is converted into bits (binary), and a redistribution operation is performed to faithfully reproduce the local area density in the original.

The image processing unit 71 includes multi-valued processing units 71a and 71b, a synthesis processing unit 71c, a density conversion processing unit 71d, a scaling processing unit 71e, an image processing unit 71f, an error diffusion processing unit 71g and a compression processing unit 71b. Contains. The image processing unit 71 is a processing unit that finally converts the input image data into image data that the operator desires, and this processing unit is used until the memory 73 stores the finally converted output image data. Is configured to process. However, each of the above-described processing units included in the image processing unit 71 functions as necessary and may not function.

That is, in the multi-value quantization processing units 71a and 71b, the data binarized by the error diffusion processing unit 70c is converted again into 256 gradations. In the combination processing unit 71c, a logical operation for each pixel, that is, an operation of a logical sum, a logical product, or an exclusive logical sum is selectively performed. The data to be calculated are the image data stored in the memory 73 and the pit data from the pattern generator (PG). In the density conversion processing unit 71d, the relationship between the input density and the output density is arbitrarily set for the 256 gradation digital signal based on a predetermined gradation conversion table. In the scaling processing unit 71e, pixel data (density value) for the target pixel after scaling is obtained by performing interpolation processing based on the input known data according to the instructed scaling ratio, and the sub-scanning is varied. After being scaled, the main scanning is scaled. In the image processing unit 71f, various image processes may be performed on the input pixel data, and information collection such as feature extraction may be performed on the data string. In the error diffusion processing unit 71g,
Processing similar to that of the error diffusion processing unit 70c of the image data input unit 70 is performed. The compression processing unit 71h compresses the binary data by the encoding called run length. Regarding the compression of the image data, the compression functions in the final processing loop when the final output image data is completed. The image data output unit 72 includes a restoration unit 72a, a multi-value quantization processing unit 72b, an error diffusion processing unit 72c, and a laser output unit 72.
d is included.

The image data output section 72 restores the image data stored in the memory 73 in a compressed state to the original 2
It is configured to convert the data into 56 gradations again, perform error diffusion of 4-valued data that is a smoother halftone expression than binary data, and transfer the data to the laser output unit 72d. That is, the restoration unit 72a restores the image data compressed by the compression processing unit 71b. The multilevel halftoning processing unit 72b performs the same processing as the multilevel halftoning processing units 71a and 71b of the image processing unit 71. The error diffusion processing unit 72c performs the same processing as the error diffusion processing unit 70c of the image data input unit 70. In the laser output unit 72d, the digital image data is converted into a laser on / off signal based on a control signal from the print unit control CPU 79, and the laser is turned on / off. The data handled by the image data input unit 70 and the image data output unit 72 are basically stored in the memory 73 in the form of binary data in order to reduce the capacity of the memory 73. It is also possible to process in the form of four-valued data in consideration of deterioration. Next, the operation / display panel provided on the upper portion of the digital copying machine 30 shown in FIG. 3 will be described.

FIG. 5 is a plan view showing an example of the operation panel of the digital copying machine 30 shown in FIG. 3. The operation panel 90 of the double-sided composite copying machine according to the present invention has a display section 90a at the center as shown in FIG. A print switch 90b and a clear key 90c are arranged at the right end. The display unit 90a may be configured by, for example, a transparent touch panel on the display surface of the dot matrix liquid crystal display unit.

FIG. 6 is an explanatory view showing a copy mode etc. setting screen of the display section 9a of the operation panel of FIG. The copy mode setting screen shown in FIG. 6 has a single-sided original to a double-sided copy (the number of originals is an even number), a single-sided original to a double-sided copy (the number of originals is an odd number), a double-sided original to a double-sided copy, and a double-sided original to a single-sided copy in almost the center thereof. Selection areas 96a, 96b, 96c, and 96d are provided for selecting when making a copy or the like, and selection areas 96a and 9 for performing double-sided copying are provided.
After touching either 6b or 96c, touching the "return" selection area 96e returns to the basic screen. When any one of the selection areas 96a, 96b, and 96c for double-sided copying is selected, four sheets of paper are continuously conveyed to the reverse conveyance path 50a and the double-sided / composite conveyance path 50b of FIG. 3 as described later. , The front and back of the paper are reversed. The mode setting of the present invention is performed by touching the processing mode on the display screen of the display section 90a of the operation panel shown in the figure.
In the selection area 96f, one double-sided original image is
Select a mode to form on one side of a sheet of paper, 96
g is a predetermined area for setting a mode for forming two double-sided original images on the front and back sides of one sheet.

When the mode of the present invention is selected on the operation panel as described above, the RDF in the digital copying machine 30 is selected.
The original size is detected by 36, the paper size is detected by the multi-stage paper feeding unit 33, and the detected original size and paper size are sent to a central processing unit (CPU) 74.
The scaling factor is determined. The data (for two pages) of the double-sided original obtained from the image data input unit 70 is stored in the memory 73, combined and scaled via the image processing unit 71, and sent to the image data output unit 72. Electrophotographic process unit 47
More printed.

7A and 7B are views for explaining an example of the relationship between the original and the copy in the present invention.
(A) shows a case where two double-sided originals are duplicated on one copy sheet. First, one double-sided document A shown in FIG.
Two pages of pages (front side) and B page (back side) are printed on the back side of the copy sheet (b) by the above process, and the copy sheet after the completion of printing is transferred from the fixing device 49. Two pages of the second original (not shown) are printed on the back surface of the copy sheet (b) via the transport path 50b.

FIGS. 8A to 8D are views for explaining another example of the relationship between the original and the copy in the present invention.
A page (front side) and B page (front side) of the first double-sided original in (a) are printed side by side on the front side of copy paper (c),
This is a case where the second C page (front side) and the D page (back side) of the second sheet in FIG. The following shows the case of printing.

Next, the operation of the double-sided composite copying machine according to the present invention will be described with reference to a flow chart. FIG. 9 shows a flowchart of the double-sided composite copying machine according to the present invention. step 1 : When the print switch on the operation panel is turned on, first, it is determined what the current processing mode is set to. step2 : When the processing mode is determined, the image of the double-sided original is reduced and combined on one side of one copy sheet, and the recording mode is determined. step3 : If the mode is not set, the images of the first double-sided original are reduced and combined, and then recorded on one side of the sheet, and the images of the second double-sided original are reduced and combined, and recorded on the second side of the sheet. To determine whether or not to execute the mode. step4 : In case of mode, as mode management data "
0 "is stored in the memory M. step5 : In the case of the mode," 0 "is stored as the mode management data.
1 "is stored in the memory M. step6 : The automatic document feeder of the scanner unit sequentially feeds documents from the document tray, and in the reading unit, the front and back images of the document are described in detail in the above document. in are sequentially read with step7:. optical image is guided to the photoelectric conversion element is converted into an image signal, temporarily stored in a predetermined area of the memory step8:. once the image data of the stored document in the memory ,
Predetermined processing is performed in the image processing unit, and at the same time, scaling processing and combination processing are performed. At this time, the image processing unit and the document reading unit are operated in a non-coincidence manner, and as soon as the image processing unit prepares the skillful image, the final image is sent to the laser recording unit and the finished image data is sent. It outputs sequentially from. Step9 : Before the reading of the previous document is completed, it is checked whether the next document is on the document tray of the automatic document feeder. step10 : When the next original is on standby, the next reading is started, and when there is no original, the operations of the automatic original feeder and the scanner unit are stopped. At this time, even if the scanner unit is stopped, the image processing unit and the laser recording unit are operating, and when the respective units fulfill their respective purposes, they are sequentially stopped.

[0030]

As is apparent from the above description, according to the present invention, a double-sided image added with a processing mode in which front and back image information of a double-sided original is scaled and recorded on one side of a copy sheet together is recorded. It is a forming device. Therefore, the operator can obtain a desired copy simply by setting both originals on the original tray of the automatic original feeder.
The efficiency of copying work is also improved. Further, since the above-mentioned two-sided mode is provided, it is effective in terms of the compression space of the document.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of a double-sided document automatic feeding apparatus in a double-sided composite copying apparatus according to the present invention.

FIG. 2 is a block diagram showing a schematic configuration of a guide unit that constitutes a main part of the double-sided document feeder of FIG.

FIG. 3 is a cross-sectional view showing the overall configuration of a digital copying machine which is an embodiment of a double-sided image forming apparatus equipped with a sheet conveying device according to the present invention.

FIG. 4 is a block configuration diagram of an image processing unit and each control system included in the digital copying machine with a facsimile function 30 shown in FIG.

5 is a plan view showing an example of an operation panel of the digital copying machine 30 shown in FIG.

FIG. 6 is an explanatory diagram showing a copy mode etc. setting screen of the display unit of the operation panel of FIG. 5;

FIG. 7 is a diagram illustrating an example of a relationship between a document and a copy according to the present invention.

FIG. 8 is a diagram for explaining another example of the relationship between the original and the copy according to the present invention.

FIG. 9 is a diagram showing a flowchart of a double-sided composite copying machine according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Paper feed tray, 2 ... Paper feed rollers, 3a, 3b ... Roller pair, 4a, 4b ... Roller pair (delivery means), 5 ... Branch selection section, 6a, 6b ... Conveying roller pair, 7a, 7b ... Conveying roller Pair, 8, 10 ... Forward / reverse roller, 9 ... Business card (postcard) tray, 11a, 11b ... Conveying rollers (intake means), 1
2 ... Transport path (substantially semi-cylindrical with curved surface), 13
a, 13b ... Ejection roller pair, 14 ... Ejection tray, 30 ...
Digital copying machine, 31 ... Scanner section, 32 ... Laser printer section, 33 ... Multi-stage paper feeding unit, 34 ... Sorter, 3
Reference numeral 5 ... Original placing table, 40 ... Scanner unit, 46 ... Laser writing unit, 47 ... Electrophotographic process section, 51
... first cassette, 52 ... second cassette, 53 ... third cassette, 55 ... fifth cassette, 70 ... image data input section,
71 ... Image processing unit, 72 ... Image data output unit, 73 ... Memory, 74 ... Image processing central processing unit (CPU), 9
0 ... Operation panel.

Claims (2)

[Claims] 1. An image reading section for reading an image of a double-sided original having images on the front and back sides, an image information storage section for storing image information of the double-sided original read by the image reading section, and a storage in the image information storage section. 1 of the document image information of the multiple surfaces
And an image information recording section for recording the final image edited by the image information processing section on the sheet. Characteristic double-sided composite copying machine. 2. An image reading unit for reading images of a double-sided original having images on the front and back sides, an image information storage unit for storing image information of a plurality of double-sided originals read by the image reading unit, and the image information storage. An image information processing unit that processes image data on the front and back sides so that multiple-sided document image information stored in a unit is formed on one sheet of paper; and a final image edited by the image information processing unit The front and back reversing conveyance means for recording on the first side and reversing the front and back side of the sheet on which the image information is further recorded, and conveying it again to the image recording section, and the second side of the paper reversed by the front and back reversing conveyance means. And a image information recording unit for recording the next edited final image.