JP2004120798A - Digital copying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital copying machine that prevents paper orientation from reversing depending on turn orientation in the case of filing paper imaged on both sides. <P>SOLUTION: The digital copying machine has a rotation processing part that allows to rotate image data stored by a storage means that stores the image data read by a reading device by any of 0 degrees, 90 degrees, 180 degrees and 270 degrees, and an image formation means that performs image formation on the paper based on the image data rotated by the rotation processing part. At the time of image formation on the both sides of the paper, in response to the feeding orientation of an original, a rotation angle for each image formed on the both sides of the paper in the rotation processing part is determined. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a digital copying machine capable of storing input image information.

2. Description of the Related Art Conventionally, a copying machine has been proposed in which input image information is temporarily stored in a memory, and the image information is read out from the memory and used for processing such as enlargement / reduction processing when forming an image on a sheet (for example, a copier). And JP-A-1-220970). This copying machine can call up image information stored in a memory many times to form a plurality of identical images, or form an image on paper by performing processing such as enlargement / reduction rotation.

Also, a double-sided copy mode in which an image is formed on both sides of a sheet by a digital copying machine or the like, a binding margin creating function of providing a binding margin on an imaged sheet, and the like are known.

Further, a digital copier having a so-called multi-page in 1 mode in which image information for a plurality of pages is formed on one side of one sheet using a memory (for example, Japanese Patent Application Laid-Open No. 3-233578) has been proposed. . According to this function, the number of sheets used for image formation can be saved.
JP-A-1-220970 JP-A-3-233578

場合 When forming an image on both sides of a sheet, it is common to form the image so that the orientation of the image is the same on the front and back sides. However, when binding multiple sheets of paper imaged on both sides, if images in the same direction are uniquely formed on the front and back, the image will be reversed when the paper is turned over depending on the binding method of the paper. There is.

For example, as shown in FIG. 1A, a document in which “A”, “B”, “C”, and “D” are written on one side along the longitudinal direction of the paper is set in the automatic document feeder 1000. Then, double-sided copying is performed by a conventional copying machine in which the directions of the images match on the front and back sides. Hereinafter, a document that uses paper vertically is referred to as a portrait document. On the other hand, a document that uses paper horizontally is called a landscape document. When a double-sided original obtained by double-sided copying is bound in the longitudinal direction of the sheet as shown in FIG. 1B, a normal image always appears to the user as shown in FIG. 1C. However, when the sheet is bound in the short side direction of the sheet as shown in FIG. 1D, the image formed on the back surface of the sheet becomes an inverted image as shown in FIG. 1E.

Also, in the 2-page in 1 mode, when a two-sided copy is performed on a portrait document as shown in FIG. 1A, as shown in FIG. Two images are formed along the direction, and as a result, four original images are formed on one copy sheet. When the double-sided document thus obtained is bound in the short direction of the paper as shown in FIG. 2B, a normal image always appears to the user as shown in FIG. 2C. However, when the sheets are bound in the longitudinal direction of the sheet as shown in FIG. 2D, the image formed on the back surface of the sheet becomes an inverted image as shown in FIG. 2E.

The object of the present invention is to provide a digital copying machine in which, when binding a plurality of sheets of images formed on both sides, the direction of the sheets does not reverse depending on the turning direction.

A first digital copying machine according to the present invention automatically transports a document set on a document feed tray, and discharges the document to a document discharge unit after the document is read. A reading device that outputs as read image data, a rotation processing unit that can perform any one of rotation processes of 0, 90, 180, and 270 degrees on the image data read by the reading device; Image forming means for forming an image on a sheet based on the image data on which the rotation processing has been performed by the rotation processing unit, so that the image can be formed on both sides of the sheet. In this digital copying machine, when the original set in the original feed tray is portrait and the binding direction of the paper on which images are formed on both sides is long side binding (left binding), the original is set in the original feed tray. When the printed document is horizontally passed, the image formed on the front side of the sheet is subjected to a 0-degree rotation process, and the image formed on the back side of the sheet is subjected to a 0-degree rotation process; When a document set on the document feed tray is vertically passed, a rotation process of 270 degrees is performed on an image formed on the front surface of the paper, and a 270 degrees rotation process is performed on the image formed on the back surface of the paper. Control means for controlling the rotation processing unit so as to perform the rotation processing.

A second digital copying machine according to the present invention automatically conveys a document set on a document feed tray and discharges the document to a document discharge unit after the document is read. A reading device that outputs as read image data, a rotation processing unit that can perform any one of rotation processes of 0, 90, 180, and 270 degrees on the image data read by the reading device; Image forming means for forming an image on a sheet based on the image data on which the rotation processing has been performed by the rotation processing unit, so that the image can be formed on both sides of the sheet. The digital copier further includes a document feed tray when the document set in the document feed tray is in portrait and the binding direction of the paper on which images are formed on both sides is short side binding (upper binding). When the original set on the side of the paper is horizontal, the image formed on the front side of the paper is subjected to the rotation processing of 0 degrees, and the image formed on the back side of the paper is subjected to the rotation processing of 180 degrees. When the original set in the original feed tray is vertically passed, the image formed on the front side of the sheet is subjected to a rotation process of 270 degrees, and the image formed on the back side of the sheet is rotated. There is a control unit for controlling the rotation processing unit so as to perform the rotation processing of 90 degrees.

A third digital copying machine according to the present invention automatically conveys a document set on a document feed tray and discharges the document to a document discharge unit after the document is read. A reading device that outputs as read image data, a rotation processing unit that can perform any one of rotation processes of 0, 90, 180, and 270 degrees on the image data read by the reading device; Image forming means for forming an image on a sheet based on the image data on which the rotation processing has been performed by the rotation processing unit, so that the image can be formed on both sides of the sheet. The digital copier further includes a document feed tray when the document set in the document feed tray is a landscape and the binding direction of the paper on which images are formed on both sides is long side binding (left binding). When the original set on the side of the paper is horizontally passed, the image formed on the front side of the paper is subjected to the rotation processing of 0 degrees, and the image formed on the back side of the paper is subjected to the rotation processing of 0 degrees. When the original set in the original feed tray is vertically passed, the image formed on the front side of the sheet is subjected to a rotation process of 270 degrees, and the image formed on the back side of the sheet is rotated. Control means is provided for controlling the rotation processing unit so as to perform a rotation process of 270 degrees.

A fourth digital copying machine according to the present invention automatically transports a document set on a document feed tray, and discharges the document to a document discharge unit after the document is read. A reading device that outputs as read image data, a rotation processing unit that can perform any one of rotation processes of 0, 90, 180, and 270 degrees on the image data read by the reading device; Image forming means for forming an image on a sheet based on the image data on which the rotation processing has been performed by the rotation processing unit, so that the image can be formed on both sides of the sheet. The digital copier further includes a document feed tray that is set to a landscape mode, and that a sheet on which images are formed on both sides is bound on the short side (upper binding). When the set document is in a horizontal direction, the image formed on the front side of the sheet is subjected to a rotation process of 0 degrees, and the image formed on the back side of the sheet is subjected to a rotation process of 180 degrees. When the original set on the original feed tray is vertically passed, the image formed on the front side of the sheet is rotated by 270 degrees, and the image formed on the back side of the sheet is rotated 90 degrees. There is control means for controlling the rotation processing unit so as to perform the rotation processing at a time.

In a fifth digital copying machine according to the present invention, in the first digital copying machine, the control means may be configured to bind the original set in the original feed tray to a portrait, and to bind a sheet on which images are formed on both sides. When the direction is short-side binding (upper binding), when a document set on the document feed tray is passed sideways, a rotation process of 0 degrees is performed on an image formed on the surface of the sheet, and The image formed on the back side of the document is rotated 180 degrees, and when the document set on the document feed tray is vertically passed, the image formed on the front side of the sheet is rotated by 270 degrees. Control means for controlling the rotation processing unit so as to perform the rotation processing and to perform the rotation processing of 90 degrees on the image formed on the back surface of the sheet.

In a sixth digital copying machine according to the present invention, in the first or fifth digital copying machine, the control means may be configured such that the document set in the document feed tray is a landscape, When the binding direction is short side binding (left binding), when the document set in the document feed tray is vertically passed, a rotation process of 0 degrees is performed on the image formed on the surface of the sheet. The image formed on the back side of the sheet is subjected to a rotation process of 0 degrees, and when the document set on the document feed tray is passed sideways, the image formed on the front side of the sheet is 270 degrees. And a control unit that controls the rotation processing unit so as to perform the rotation processing of 270 degrees on the image formed on the back surface of the sheet while performing the rotation processing of 270 degrees.

In a seventh digital copying machine according to the present invention, in the first, fifth, or sixth digital copying machine, the control means may be configured such that the original set in the original feed tray is a landscape, In the case where the binding direction of the set sheet is short side binding (upper binding), when the document set in the document feed tray is vertically passed, the image formed on the surface of the sheet is rotated by 0 degrees. In addition to performing the processing, the image formed on the back side of the paper is subjected to a 180-degree rotation processing, and is formed on the front side of the paper when the original set in the document feed tray is passed through. A control unit controls the rotation processing unit so as to perform a rotation process of 270 degrees on the image and a rotation process of 90 degrees on the image formed on the back surface of the sheet.

In the eighth digital copying machine according to the present invention, any one of the digital copying machines further includes a determination unit that determines whether the document is a portrait or a landscape,
The control unit controls the rotation processing unit based on a determination result of the determination unit.

In a ninth digital copying machine according to the present invention, any one of the above digital copying machines further includes an input unit for inputting whether the original is a portrait or a landscape. Here, the control unit controls the rotation processing unit based on an input result of the input unit.

In a tenth digital copying machine according to the present invention, any one of the digital copying machines may further include any one of a longitudinal direction and a lateral direction of the sheet when the image forming unit forms an image on the sheet. There is a selection means for selecting whether to provide a binding margin in the direction. The control unit determines whether the binding direction of the document is the long side binding or the short side binding based on the binding margin direction selected by the selecting unit, and based on the determination result, the rotation processing unit. Control.

In the eleventh digital copying machine according to the present invention, any one of the digital copying machines further includes a size detecting unit that detects a size and a direction of the document set on the document feeding tray. Then, the size detection means determines whether the document passes horizontally or vertically, and controls the rotation processing unit based on the result of the determination. Preferably, the size detecting means detects the width of the document and the length of the document measured based on the transport time during which the document is transported, thereby detecting the width of the document set on the document feed tray. Detect size and orientation.

According to the digital copying machine of the present invention, when binding a plurality of sheets formed on both sides in double-sided printing, the direction of the sheets does not reverse depending on the turning direction.

Hereinafter, a digital copying machine of the present invention will be described in the following order with reference to the accompanying drawings.
(1) Configuration of digital copier (1-1) Overall configuration of digital copier (1-2) Operation panel OP
(1-3) Control unit (2) Processing in each CPU (2-1) Processing in CPU 1 (2-1-1) Main routine (2-1-2) Input control processing (2-1-3) Display control processing
(2-2) Processing in CPU 5 (2-2-1) Main routine (2-2-2) Input data analysis (2-2-3) Command setting
(2-3) Processing by CPU 6 (2-3-1) Main routine (2-3-2) Decompression control (2-3-3) Image memory read control
(2-4) Processing in CPU 7 (2-4-1) Main Routine (2-4-2) Document Size Detection (3) Image Memory and Output Image (3-1) Portrait Document, Landscape Passing, Left Binding (3-2) Portrait, portrait, portrait, left binding (3-4) Portrait, portrait, portrait, top binding (3-4) Portrait, portrait, portrait, top binding (3-6) Landscape original, landscape, left binding (3-6) Landscape original, landscape, left binding (3-7) Landscape original, landscape, left binding (3-8) Landscape original, landscape, left binding Binding margin

(1) Digital copier configuration
(1-1) Overall Configuration of Digital Copying Machine FIG. 3 is a cross-sectional view showing the overall configuration of the digital copying machine 1 of the present embodiment. FIG. 4 is a front view of the operation panel OP provided on the upper surface of the copying machine 1 main body. The copying machine 1 includes a scanning system 10 that reads a document and converts the image signal into an image signal, an image signal processing unit 20 that processes an image signal sent from the scanning system 10, and a printer that converts image data input from the image processing unit 20 as it is. A memory unit 30 for switching between output to an apparatus and storage in a memory, etc .; a print processing unit 40 for driving a semiconductor laser 62 based on image data input from the memory unit 30; An optical system 60 for guiding the laser beam from 62 to an exposure position on the photosensitive drum 71; and an image forming system 70 for developing the latent image formed by exposure, transferring the image onto paper, and fixing the image to form an image. An operation panel OP provided on the upper surface of the main body, a document transport section 500 for transporting a document and reversing the front and back as necessary, And a paper feed portion 600.

The reading device IR includes a scanning system 10 and an image signal processing unit 20. The scanning system 10 uses an exposure lamp 11 and a first mirror 12, fixed mirrors 13a and 13b, a focusing lens 14, a CCD array, and the like, which are mounted on a scanner 19 that moves below the platen glass 18. And a scan motor M2. The photoelectric conversion element 16 individually converts an image of a non-specific color mainly composed of black in a document and an image of a specific color (red) into electric signals.

The image signal processing unit 20 processes the image signal output from the photoelectric conversion element 16 and outputs image data to the memory unit 30. The memory unit 30 will be described later in detail. The printer device PRT includes a print processing unit 40, an optical system 60, and an image forming system 70. The print processing unit 40 gives them to the semiconductor laser 62 in accordance with the sent image data. The optical system 60 includes a semiconductor laser 62, a polygon mirror 65 for deflecting the combined laser beam, a main lens 69, a reflection mirror 67a, and a reflection mirror 67c.

The image forming system 70 includes a development transfer system 70A, a transport system 70B, and a fixing system 70C. The development transfer system 70A includes a photosensitive drum 71 that is driven to rotate counterclockwise in FIG. 3 and a first charging charger 72a, a first developing device 73a, and a transfer charger 74 that are arranged around the photosensitive drum 71 in order from the upstream in the rotation direction. , A separation charger 75 and a cleaning unit 76. The first developing device 73a contains a two-component developer composed of a toner and a carrier. The conveyance system 70B conveys the paper conveyed from the cassettes 80a and 80b for storing the paper, the size detection sensors SE11 and SE12 for detecting the paper size, the paper guide 81, the timing roller 82, the conveyance belt 83, and the re-feed unit 600. And horizontal transport rollers 86a to 86c. The fixing system 70C includes a fixing roller 84 that conveys the paper while thermocompressing the paper, a discharge roller 85, and a discharge sensor SE62 that detects discharge of the paper.

The paper re-feeding unit 600 temporarily stores the paper discharged from the discharge roller 85 and reverses the front and back in the duplex mode, and does not perform the reverse in the combining mode, and performs the image forming (printing) again without performing the reverse. Is a circulating type that is carried into the horizontal transport roller 86a of the transport system 70B. The refeed unit 600 includes a switching claw 601 for switching between discharge to the discharge tray 621 and refeed, a transport roller 602, a reversing roller 603, and a reversing sensor SE61.

In the duplex mode, the left end of the switching claw 601 is moved upward by a solenoid (not shown). As a result, the sheet discharged from the discharge roller 85 is guided toward the transport roller 602, and reaches the reversing roller 603 through the transport roller 602. When the rear end of the sheet reaches the reversing sensor SE61, the reversing roller 603 is reversed, whereby the sheet is conveyed toward the horizontal conveying roller 86a, reaches the timing roller 82 through the horizontal conveying rollers 86b and 86c, and stands by. I do. At this time, the next sheet is also successively conveyed at a predetermined interval, and the number of sheets that can be copied on one side of the sheet depends on the length of the sheet if there is no delay in image data. become.

(4) The document transport unit 500 automatically transports the document set on the document feed tray 510 onto the document glass 18, and after reading the document by the scanner 19, discharges the document to the document discharge unit 511. The document feeder 500 includes a feed roller 501, a separating roller 502, a separating pad 503, an intermediate roller 504, a registration roller 505, a transfer belt 506, a reversing roller 507, a switching claw 508, a discharge roller 509, a paper feed tray 510, and a paper discharge tray. It comprises a tray 511, a document scale 512, a paper feed sensor SE51, and a discharge sensor SE52.

(4) In the one-sided mode, one or a plurality of originals are set on the paper feed tray 510 with the side to be read facing upward. When the operation is started, the originals are conveyed by the paper feed roller 501 sequentially from the lowermost original of the set originals, and are accurately positioned on the original glass 18. At this time, the leading edge of the next document has reached the registration roller 505, so that the time required for transporting the next document is reduced. In this state, the scanner 19 scans and reads the front surface (lower surface) of the document. When the reading of the document is completed, the document is conveyed to the left by the conveyance belt 506, makes a U-turn by the reversing roller 507, and is discharged onto the discharge tray 511 by the discharge roller 509 through the upper side of the switching claw 508. At this time, the document is discharged with the reading surface (front surface) of the document facing upward.

In the double-sided mode, the operation up to reading of the front side of the document is the same as that in the single-sided mode, except that the switching claw 508 is switched so that the left end thereof faces upward while the scanner 19 is scanning. The conveyed document whose front surface has been read makes a U-turn by the reversing roller 507, passes under the switching claw 508, and is guided below the re-conveying belt 506 in a state where it is turned upside down. In the meantime, the scanner 19 moves to the left when the reading of the front surface of the document is completed, and stands by at the back surface reading position corresponding to the length of the document. Here, the back side reading position is the position where the leading edge and the trailing edge of the original coincide with each other when the original makes a U-turn with the reversing roller 507, that is, the length of the original that has returned once after making a round around the reversing roller 507. The position is slightly to the right of the position that matches the length. Therefore, the back side reading position changes according to the length of the document. If the front and rear ends of the upper surface of the original glass 18 do not coincide with each other because the original is short, the left end of the original glass 18 is the back surface reading position. Note that the length of the original is detected by the paper feed sensor SE51 during the conveyance of the original. The document guided again below the conveyor belt 506 is conveyed rightward by the inverted conveyor belt 506 at a constant speed corresponding to the copy magnification, and passes above the scanner 19 waiting at the back surface reading position during the conveyance. I do. As a result, the back side of the document is read during conveyance. When the reading of the front and back of the document is completed, the transport belt 506 rotates in the reverse direction and the document is transported to the left. After being inverted by the reversing roller 507 and guided below the transport belt 506, the left edge of the document transported to the right reaches the transport belt 506, and is then transported to the left again, and the paper is discharged by the reversing roller 509. It is discharged onto the tray 511. As a result, the document is discharged with the surface of the document facing upward.

(1-2) Operation panel OP
FIG. 4 is a front view of the operation panel OP. The operation panel OP includes a liquid crystal touch panel 91, a numeric keypad 92 for inputting a set number and a magnification, a clear key 93 for returning the set number to a standard value “1”, and a set value in the copying machine 1. A panel reset key 94 for returning to a standard value, a stop key 95 for stopping a copy operation, and a start key 96 for starting a copy operation are provided.

The liquid crystal touch panel 91 displays various states of the copying machine 1 such as occurrence of a JAM, occurrence of a serviceman call, occurrence of a paper empty, operation modes of the copying machine 1 such as an exposure level, a magnification, and paper, and various other information. Input for selecting the operation mode. A document direction selection key 103 sets whether the document is portrait or landscape. The document selection key 100 sets whether the document is double-sided or single-sided. A copy selection key 101 selects between double-sided copy and single-sided copy. The 2in1 selection key 102 selects 1in1 (normal copy) or 2in1. A binding margin selection key 97 is used to select whether to bind the binding margin on the left side or the upper side.

(1-3) Control Unit FIGS. 5 and 6 are block diagrams showing the configuration of the control unit 100 of the copying machine 1. The control unit 100 is mainly configured with eight CPUs 1 to 8, and each of the CPUs 1 to 8 is provided with ROMs 111 to 118 storing programs, and RAMs 121 to 128 serving as work areas for executing the programs. . The CPU 6 is provided in the memory unit 30 (see FIG. 7).

(4) The CPU 1 controls input and display of signals from various operation keys on the operation panel OP. The CPU 2 controls each unit of the image signal processing unit 20. The CPU 3 controls the driving of the scanning system 10. The CPU 4 controls the print processing unit 40, the optical system 60, and the image forming system 70. The CPU 5 performs a process for adjusting the overall timing of the control unit 100 and setting an operation mode. The CPU 6 temporarily stores the read image data in the memory (image memory 304) by controlling the memory unit 30, reads out the image data, and outputs the read image data to the print processing unit 40. As a result, the reading device IR and the printer device PRT are controlled independently, and the copy speed is improved. Details will be described later. (4) The CPU 7 controls the document feeder 500. The CPU 8 controls the re-feed unit 600. Serial communication by interruption is performed between these CPUs 1 to 8, and commands, reports, and other data are exchanged. The signals from the paper size detection sensors SE11 and SE12 are input to the image forming sensor I / O 77, and the size of the copy paper is managed by the CPU 4.

The image signal processing unit 20 includes an A / D converter, a shading correction unit, a color determination unit that determines the color of a pixel of a document based on image data, a scaling unit, and an image quality correction unit. The image signal input from the photoelectric conversion element 16 is quantized by the image signal processing unit 20 into 8-bit image data for each pixel, subjected to various processes, and output as image data D2. At the same time, 1-bit color data DC indicating whether or not a specific color is specified corresponding to each pixel of the image data D2 is output.

FIG. 7 is a block diagram of the memory unit 30. The memory unit 30 includes a switching unit 301, a binarization processing unit 302 that creates binary data based on parameter settings from the CPU 6, a multi-port image memory 304 having a capacity of one A4 size page at 400 dpi. The multi-value data is created based on parameter settings from a code processing unit 305 having a compressor 311 and a decompressor 312 which can operate independently, a code memory 306 having a multi-port, a rotation processing unit 307, and a CPU 6. It comprises a multi-value processing section 308 and a CPU 6 for controlling the whole. When image data of a document composed of X × Y pixel data in the image memory 304 and the X direction is a column address and the Y direction is a row address, writing of image data is started from an address (0, 0). After the data of the first row is written in the X direction, the data of the next row is written in the X direction. The binarization processing performed by the binarization processing unit 302 does not include simple binarization, but includes binarization of pseudo halftones such as dither processing.

When the image data D2 is written to the image memory 304, the code processing unit 305 reads and compresses the data to create code data, and writes the code data to the code memory 306. In addition, in accordance with a command from the CPU 6, the code data written in the code memory 306 is read and decompressed to create image data, which is written in the image memory 304. When one page of image data is generated in the image memory 304 by decompression, it is read. The rotation processing unit 307 outputs data in a state where the image is rotated by a rotation angle (0 °, 90 °, 180 °, 270 °) specified by the CPU 6. For example, when the image is rotated by 90 ° and output, the data is read out sequentially from the address (X, 0). When the image is rotated by 180 ° and output, the data is read out from the address (X, Y) sequentially. When reading and outputting the image after rotating it by 270 °, the data is read in order from the address (0, Y). The multi-value processing unit 308 generates multi-value image data based on the data input from the rotation processing unit 307, and outputs this as image data D3. The compressor 311 and the decompressor 312 can operate independently of each other and in parallel. Data is DMA-transferred between the compressor 311 and the decompressor 312 and the code memory 306 by a DMAC (not shown).

The sign memory 306 is managed by a management table MT1 stored in the RAM 126. 8A and 8B show the relationship between the management table MT1 and the code memory 306. As shown in FIG. 8B, the code memory 306 is divided into memory areas in units of 32 Kbytes, and enables simultaneous control of writing (reading) and reading (printing). Considering this, the code data for each page is stored in each area. The preceding link information “00” shown in the table of FIG. 8A means that it is the first area of each page. The post-link information “FF” means the last area of each page. The management table MT1 stores a number indicating an area of the code memory 306, a page number, a number of a connected area, and various types of additional information necessary for compression / expansion processing such as a compression method and a data length. The code memory 306 is dynamically managed based on such information. When reading and compressing image data from the image memory 304, the CPU 6 controls the compressor 311 and stores the information in the code memory 306 while creating information of the management table MT1. When outputting image data, code data is read from the code memory 306 by the reverse operation. The information in the management table MT1 is deleted when all the information of the corresponding page is normally discharged.

(2) Processing in Each CPU Hereinafter, the operation of the copying machine 1 will be described in detail based on the attached flowchart. In the order of the description, the main routines for executing the CPUs 1 to 8 will be described in order, and then the subroutines executed in each main routine will be described.

(2-1) Processing in CPU 1 (2-1-1) Main Routine FIG. 9 is a flowchart of a main routine of the CPU 1. The CPU 1 controls input and display of signals from various operation keys on the operation panel OP. After performing the initial setting (step S1100), the internal timer is started and the routine time is monitored so as to be constant (step S1200 and step S1600), and the input control processing is performed on the operation panel OP and the like (step S1300). After executing the display control process (step S1400), other processes are performed (step S1500). The CPU 1 performs communication with the other CPUs 2 to 8 by interrupt processing.

(2-1-2) Input Control Process FIGS. 10 to 12 are flowcharts of the input process executed in step S1300. In the input process, the display is switched in accordance with the operation of the operation key on the operation panel OP by the user, and the setting change such as the mode accompanying the key operation is transmitted to the CPU 5.

When the document selection key 100 is pressed (YES in step S1301), and when the single-sided document mode is set (LED 100b is lit) (YES in step S1302), the double-sided document mode is set (LED 100b is turned off and LED 100a is lit). (Step S1304). If the two-sided original mode has been set (NO in step S1302), the one-sided original mode is set (LED 100a turned off, LED 100b turned on). Thereafter, the mode change is transmitted to the CPU 5 (step S1305).

If the document direction selection key 103 has been pressed (YES in step S1306), and if the direction of the document has not been specified (both the LEDs 103a and 103b are off) (YES in step S1307), the port is determined in step S1308. The rate direction is designated (LED 103a is lit). If the direction of the document has been designated as the portrait direction (YES in step S1309), the landscape direction is designated in step S1311 (LED 103a turned off, LED 103b turned on). If the document direction is designated as the landscape direction (NO in step S1309), it is determined in step S1310 that the document direction is not specified (both the LED 103a and the LED 103b are turned off). Thereafter, the change of the original direction is transmitted to the CPU 5 (step S1312).

If the copy selection key 101 is pressed (YES in step S1313), if the single-sided copy mode is set (LED 101b is lit) (YES in step S1314), the double-sided copy mode is set (LED 101b is turned off, LED 101a is lit). (Step S1316). If the double-sided copy mode has been set (NO in step S1314), the single-sided copy mode is set (LED 101a turned off, LED 101b turned on) (step S1315). Thereafter, the change of the copy mode is transmitted to the CPU 5 (step S1317).

When the 2in1 selection key 102 is pressed (YES in step S1318), when the 1in1 mode is set (LED 102a is turned on) (YES in step S1319), the 2in1 mode is set (LED 102a is turned off, LED 102a is turned on) ( Step S1321). If the 2in1 mode has been set (LED 102b turned on) (NO in step S1319), the 1in1 mode is set (LED 102b turned off, LED 102a turned on) (step S1320). Thereafter, the change of the copy mode is transmitted to the CPU 5 (step S1322).

If the binding margin selection key 97 has been pressed (YES in step S1323) and a position for providing a binding margin has not been designated (both the LEDs 97a and 97b are off), a mode for providing a binding margin on the left side of the sheet is set. It is set (LED 97a is turned on) (YES in step S1324, step S1328). If the mode for providing the binding margin on the left side of the paper is set (NO in step S1324, YES in step S1325), the mode for providing the binding margin on the upper side of the paper is set (LED 97a off, LED 97b on). ) (Step S1327). If the mode for providing the binding margin on the upper side of the sheet is set (NO in step S1325), the position for providing the binding margin is automatically set based on the document passing direction. (LED 97b is turned off, LED 97a is turned on) (YES in step S1326). Thereafter, the change of the binding margin setting mode is transmitted to the CPU 5 (step S1329).

If the other keys are pressed (YES in step S1330), those processes are executed (step S1331). If there is information transmitted from the CPU 5 (YES in step S1332), and if the information is a document direction unknown warning (YES in step S1333), a document direction unknown display request is made (step S1334). ). After performing other processing and processing corresponding to the transmitted information (step S1335), the process returns.

(2-1-3) Display Control Process FIG. 13 shows a flowchart of the display control process (step S1400). In the input control process described above, when a display request is made (YES in step S1401) and the request is a request for display of an unknown document direction (YES in step S1402), the screen of FIG. Is displayed, and an input of the document direction is requested (step S1404). After executing display processing according to other display requests (step S1403), the process returns.

(2-2) Processing in CPU 5 (2-2-1) Main Routine FIG. 15 is a flowchart of the main routine of the CPU 5.
The CPU 5 issues a start / stop command and an operation mode to other CPUs, and controls the overall operation of the copying machine 1. After the initial setting (step S5100), the internal timer is started (step S5200), and monitoring is performed so that the routine time is constant (step S5800). In the input data analysis process (step S5300), the content is analyzed after checking the data input by the interrupt communication, and if the operation mode is changed according to the content, the mode setting process is performed in step S5400. Perform In the command setting process (step S5500), memory write / read control according to the copy mode is executed. Thereafter, the data is set in the output area for output by communication (step S5600).

(2-2-2) Analysis of Input Data FIGS. 16 and 17 are flowcharts of the input data analysis process (step S5300) of FIG. Here, in the apparatus of the present embodiment, the originals that can be set on the original platen in both the vertical and horizontal directions are B5 and A4 sizes, and the other sizes, for example, the B4, A3, and A5 sizes are either vertical or horizontal. It can be set only in the direction. However, the present invention is not limited to this, and it goes without saying that various modifications are possible such as B4 and A3 can be set in both directions, and A0 and A1 cannot be set. If the document size information detected by the CPU 7 is received (YES in step S5301), it is determined whether the size of the document is B5 or A4 or not. If the size of the original is B5 or A4 (YES in step S5302) and the original direction is specified by CPU 1 (YES in step S5303), the direction of the original set on the original platen Regardless of this, it is determined that the type of the original is a portrait original or a landscape original according to the instruction (steps S5305 to S5307). If the document size is B5 or A4 (YES in step S5302) and the document direction is not specified by the CPU 1, the document is placed in the direction of the document actually set on the platen. Is determined (step S5304). Thus, even when the type of the original is not specified, the apparatus can automatically determine the type of the original. If the size of the document is not B5 or A4 (NO in step S5302) and the direction of the document is specified by CPU 1 (YES in step S5308), the document actually set on the platen Regardless of the direction, the type of the original is determined to be a portrait original or a landscape original in accordance with the instruction (steps S5305 to S5307). If the size of the document is not B5 or A4 (NO in step S5302), and if the direction of the document has not been sent from CPU 1 (NO in step S5308), the A direction unknown warning is output (step S5309). After waiting for the designation of the document direction from the CPU 1 (step S5310), it is determined that the type of the document is a portrait document or a landscape document (steps S5311 to S5313). In the next step S5314, the process waits for an input of the start key 96 from the CPU 1 and proceeds to the next processing.

If the binding margin is set by the binding margin selection key 97 (YES in step S5315), a binding margin is set on the left or upper side of the sheet based on information from the CPU 1 (steps S5316 to S5318). If the mode in which the position where the binding margin is provided is automatically set based on the document passing direction is set (NO in step S5315), and if the document is vertical (YES in step S5319), A binding margin is set on the upper side (step S5318). If the original is horizontally passed (NO in step S5319), a binding margin is provided on the left side (step S5317).

(2-2-3) Command setting FIGS. 18 to 20 are flowcharts of the command setting process in step S5500 in FIG. If the 2in1 mode is set (YES in step S5501), it is checked whether the original is a portrait original or a landscape original. In 2 in 1 copy, two images are juxtaposed vertically on one side of one sheet. Therefore, when the original is a portrait original, the output paper is landscape. On the other hand, when the original is a landscape original, the output paper is a portrait. Therefore, if the document is determined to be a portrait document, the document is changed to landscape, and if the document is determined to be a landscape document, the document is changed to portrait. (Steps S5502 to 5504).

Next, the copy mode set in step S5505 is checked. Here, if the one-sided copy mode is set, the process returns. If the two-sided copy mode is set (YES in step S5505), it is first determined whether or not the print is for the back side (step S5506). If it is determined that the print is on the front side (NO in step S5505), the flow advances to step S5522 shown in FIG. 19 to determine whether the document is a portrait. If the document is portrait (YES in step S5522), it is checked whether the document set on the document table is vertically or horizontally passed (step S5523). If it is determined that the document is in landscape orientation (YES in step S5523), a command is set so that the image is rotated by 0 °, that is, output without rotation (step S5524). On the other hand, if it is determined that the original is portrait-long (NO in step S5523), a command is set to output the image rotated 270 ° in the memory (step S5526).

If it is determined in step S5522 that the document is landscape, and if the document set on the document table is vertical (YES in step S5525), the image is rotated by 0 °, that is, not rotated. A command is set to output (step S5524). On the other hand, if it is determined that the document is in landscape orientation (NO in step S5525), a command is set to output the image rotated 270 ° in the memory (step S5526).
If it is determined in step S5506 that the print is for the back side (YES in step S5506), it is determined in step S5507 whether the document is a portrait.

If the original is a portrait original (YES in step S5507), the document is set to the left side (YES in step S5508), and the binding margin is set to the left (YES in step S5509), the image is set to 0 °. A command is set to output the rotation, that is, without rotation (step S5510). If the binding margin is set to the upper side (YES in step S5508) and the binding margin is set to the upper side (NO in step S5509), a command is set so that the image is rotated by 180 ° in the memory and output (step S5509). Step S5511). If the binding margin is set to the left side (NO in step S5508) and the binding margin is set to the left side (YES in step S5512), a command is set so that the image is rotated by 270 ° in the memory and output (step S5513). If the binding margin is set to the upper side (NO in step S5508) and the binding margin is set to the upper side (NO in step S5512), a command is set so that the image is rotated and output by 90 ° in the memory (step S5514).

If the document is a landscape document (NO in step S5507), the image is rotated by 0 ° when the document is portrait-oriented (YES in step S5515) and the binding margin is set to the left (YES in step S5516). That is, a command is set so as to output without rotation (step S5517). If the binding margin is set to the upper side (YES in step S5515) and the binding margin is set to the upper side (NO in step S5516), a command is set so that the image is rotated by 180 ° in the memory and output (step S5515). Step S5518). If the binding margin is set to the left side (NO in step S5515) and the binding margin is set to the left side (YES in step S5519), a command is set to rotate the image by 270 ° in the memory and output it (step S5520). If the binding margin is set to the upper side (NO in step S5515) and the binding margin is set to the upper side (NO in step S5519), a command is set so that the image is rotated and output by 90 ° in the memory (step S5521).

As described above, the rotation of the front side image and the back side image during duplex copying is controlled according to whether the type of the original is portrait or landscape, whether the original is vertically or horizontally, and where the binding margin is located. Such a document can be output in a bookbinding format desired by the user.

(2-3) Processing in CPU 6 (2-3-1) Main Routine FIG. 21 is a flowchart of the main routine of the CPU 6. The CPU 6 controls the memory unit 30. After initialization (step S6100), a command reception process from another CPU is executed (step S6200), a status transmission process is executed (step S6300), and a write control to the image memory 304 is executed (step S6400). ), Execute compression control (step S6500), execute decompression control (step S6600), perform read control from image memory 304 (step S6700), and execute other processing (step S6800).

(2-3-2) Decompression Control FIG. 22 is a flowchart of the decompression control in step S6600 shown in FIG. In step S6601, memory settings such as setting an address for expanding the expanded image data in the image memory 304 are performed. In step S6602, the compressed data is expanded by one image from the code memory 306. In step S6603, it is determined whether or not the 2in1 mode is set. If the 2in1 mode is set, in step S6604, another process of expanding the compressed image data is performed.

(2-3-3) Image Memory Read Control FIG. 23 is a flowchart of the image memory read control in S6700 shown in FIG. The image memory read control determines the rotation angle of the command set by the CPU 5, controls the read address from the memory according to the actually set rotation angle, and outputs the rotation image data. Reading of the rotated image data can be executed by changing the order of the read addresses of the image data stored in the image memory. First, the rotation angle of the image set by the CPU 5 is checked (step S6701). If the rotation angle is 0 °, the image is output as it is from the image memory 304 (step S6702). If the rotation angle is 90 °, the image is rotated by 90 ° from the image memory 304 and output (step S6703). If the rotation angle is 180 °, the image is rotated from the image memory 304 by 180 ° and output (step S6704). If the rotation angle is 270 °, the image is rotated from the image memory 304 by 270 ° and output (step S6705).

(2-4) Processing in CPU 7 (2-4-1) Main Routine FIG. 24 is a flowchart of the main routine of the CPU 7. The CPU 7 controls the document transport unit 500. After initialization (step S7100), the internal timer is started and monitoring is performed so that the time of the routine becomes constant (steps S7200 and S7700). Next, a document feeding process is performed to separate the document and correct the skew, and control the conveyance to the conveyance belt 506 (step S7300). After the detection of the document size (step S7400), a document conveyance process for controlling the positioning of the document to a predetermined reading position by the conveyance belt 506 and the conveyance to the reversing roller 507 is performed (step S7500). A document reversal discharge process is performed to control whether the reached document is discharged as it is or is transported again toward the transport belt 506 (step S7600).

(2-4-2) Document Size Detection FIGS. 25 and 26 show a size detection subroutine executed in step S7400. First, in step S7401, the length S of the document is measured based on the document transport time in the document transport unit 500. This is because the document transport time is proportional to the length of the document. Next, in step S7402, it is determined whether the width flag is “1”. The width flag is set by turning on and off the width sensor SE51. The width sensor SE51 (see FIG. 3) is turned on by a document having a width dimension equal to or larger than the B5 horizontal feed, and sets the width flag to "1". The size of the document is set by a combination of the measured value of the length S and the width flag. 24 and 25, Y means horizontal feed and T means vertical feed. If the width flag is “1” (YES in step S7402), the value of the document length S measured in the next step S7403 is checked. If the value of S is equal to or less than 182 mm, SIZE is set to B5 transverse feed in step S7404. Thereafter, in steps S7405 to S7407, a predetermined document size is set in SIZE according to the value of the document length S measured in the same manner. If it is longer than 420 mm, the document size is determined to be unknown in step S7408. After that, in step S7409, the width flag is reset to “0”.

On the other hand, if the width flag is “0” in step S7402, the value of the document length S measured in step S7410 is checked. In step S7411 to S7413, a predetermined document size is set in SIZE according to the value of S. If the value of S is shorter than 297 mm, the document size is determined to be unknown in step S7414.

(3) Image Memory and Output Image FIG. 27 shows the storage state of image data to be read in the image memory 304 when a portrait document or a landscape document is read horizontally or vertically on the platen glass. FIG. When writing data to the image memory 304, if the X direction is a column address and the Y direction is a row address, the data in the X direction is first written to the image memory 304, and the writing of the data in the X direction on the same row ends. Accordingly, the data in the X direction is written to the image memory 304 again by shifting one line in the Y direction.

In the case where the original set in the original transport unit 500 is a portrait original and is a horizontally traversed original, the image data is stored in the image memory 304 in the state shown in FIG. Further, when the set original is a portrait original and is an original that is vertically traversed, the image data is stored in the image memory 304 in the state shown in FIG.

On the other hand, when the original set on the original transport unit 500 is a landscape original and is an original to be traversed, the data of the image is stored in the image memory 304 as shown in FIG. When the set document is a landscape document and is a document that is vertically traversed, the image data is stored in the image memory 304 in the state shown in FIG.

FIG. 28 shows a copy paper output mode. When the portrait document is bound on the left side, as shown in FIG. 3A, "A" is printed with a binding margin on the left side of the front side, and "B" is provided on the back side with a binding margin on the right side. To print.

On the other hand, when the portrait document is to be bound at the top, as shown in (b), a binding margin is provided on the upper surface and "A" is printed, and a binding margin is provided at the lower side on the back. Print “B”.

When the landscape original is bound on the left side, a binding margin is provided on the left side of the front side and “No. 1 image” is printed as shown in FIG. And print “No. 2 image”.

On the other hand, when the landscape document is to be bound at the top, as shown in (d), a binding margin is provided at the upper side of the front side and “No. 1 image” is printed, and the binding margin is printed at the lower side. Is provided and “No. 2 image” is printed.

(3-1) Portrait document, horizontal passing, left binding allowance FIG. 29 shows the first surface (front surface) and the second surface stored in the image memory 304 when the portrait document is passed laterally through the document conveying unit 500. Based on the state of the image data on the (back side) and the image data readout at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above, an image obtained when this is formed on a sheet is obtained. Write. As shown in the figure, "A" with a binding margin on the left side of the paper surface is output as it is, and "B" with a binding margin on the right side of the paper back is output as it is. Output in the state of. As a result, a sheet in a state as shown in FIG. 28A can be obtained.

(3-2) Portrait Original, Side-through, Top Binding Allowance FIG. 30 shows the first side (front side) and the second side stored in the image memory 304 when the portrait original is passed sideways through the original conveyance unit 500. Based on the state of the image data on the (back side) and the image data readout at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above, an image obtained when this is formed on a sheet is obtained. Write. As shown in the figure, after outputting “A” having a binding margin on the upper side with respect to the front side of the sheet as it is, outputting “B” having a binding margin on the lower side with respect to the rear side of the sheet is 180 degrees. ° Rotate and output. As a result, it is possible to obtain a sheet in a state as shown in FIG.

(3-3) Portrait document, portrait passing, left binding margin FIG. 31 shows the first side (front side) and the second side stored in the image memory 304 when the portrait document is passed vertically through the document transport unit 500. Based on the state of the image data on the (back side) and the image data readout at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above, an image obtained when this is formed on a sheet is obtained. Write. As shown in the figure, "A" provided with a binding margin on the left side with respect to the front side of the sheet is output after being rotated 270 degrees, and then "B" provided with a binding margin on the right side with respect to the back side of the paper. Output by rotating 270 °. As a result, a sheet in a state as shown in FIG. 28A can be obtained.

(3-4) Portrait document, portrait passing, top binding allowance FIG. 32 shows the first side (front side) and the second side stored in the image memory 304 when the portrait document passes sideways through the document transport unit 500. Based on the state of the image data on the (back side) and the image data readout at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above, an image obtained when this is formed on a sheet is obtained. Write. As shown in the figure, "A" having a binding margin provided on the upper side with respect to the front side of the paper is output after being rotated by 270 degrees, and then "B" having a binding margin provided on the lower side with respect to the back side of the paper. Is rotated 90 ° and output. As a result, it is possible to obtain a sheet in a state as shown in FIG.

(3-5) Landscape original, portrait passing, left binding allowance FIG. 33 shows a first side (front side) and a second side (back side) stored in the image memory 304 when a landscape original is vertically passed through the document transport unit 500. ), And an image when the image data is read out at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above and formed on a sheet of paper. As shown in the drawing, the “No. 1 image” having a binding margin provided below the front side of the sheet is output as it is, and then the binding margin is provided above the rear side of the sheet. No. 2 image "is output as it is. As a result, a sheet as shown in FIG. 28C can be obtained.

(3-6) Landscape Original, Vertical Passage, Top Binding Allowance FIG. 34 shows the first side (front side) and the second side (back side) stored in the image memory 304 when the landscape original passes sideways through the document feeder 500. ), And an image when the image data is read out at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above and formed on a sheet of paper. As shown in the figure, the “No. 1 image” having a binding margin on the left side with respect to the front side of the sheet is output as it is, and then the binding margin is provided on the right side with respect to the back side of the sheet. The “No. 2 image” is rotated 180 ° and output. As a result, a sheet as shown in FIG. 28D can be obtained.

(3-7) Landscape original, horizontal pass, left binding allowance FIG. 35 shows the first side (front side) and the second side (back side) stored in the image memory 304 when the landscape original passes vertically through the document feeder 500. ), And an image when the image data is read out at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above and formed on a sheet of paper. As shown in the figure, the “No. 1 image” having a binding margin on the right side with respect to the front side of the paper is output after being rotated 270 °, and then the binding margin is provided on the left side with respect to the back side of the paper. The “No. 2 image” is rotated by 270 ° and output. As a result, a sheet as shown in FIG. 28C can be obtained.

(3-8) Landscape Original, Side-through, Top Binding Allowance FIG. 36 shows a first side (front side) and a second side (back side) stored in the image memory 304 when a landscape original is passed sideways through the document feeder 500. ), And an image when the image data is read out at a predetermined rotation angle based on the image memory readout process (step S6700 in FIG. 23) described above and formed on a sheet of paper. As shown in the figure, after the “No. 1 image” having a binding margin provided below the front side of the paper is rotated by 270 ° and output, a binding margin is provided above the rear side of the paper. The “No. 2 image” is rotated by 90 ° and output. As a result, a sheet as shown in FIG. 28D can be obtained. In the above-described embodiment, the case where the longitudinal direction of the document to be set matches the longitudinal direction of the sheet has been described. However, even when the document does not match, it can be easily implemented by appropriately setting the rotation angle of the image. .

(A) shows the order of the documents set in the automatic document feeder 1000, (b) shows the case where the paper is bound in the longitudinal direction, and (c) shows the case where the paper is bound in the short direction. FIG. (A) shows the front and back of a sheet output when two-sided copying is executed in the 2in1 mode, (b) shows the case where the sheet obtained by the two-sided copying in the 2in1 mode is bound in the longitudinal direction, and (c) shows ) Shows the case where the paper is bound in the direction toward the short side. FIG. 2 is a sectional view of the configuration of a digital copying machine. It is a front view of operation panel OP. FIG. 3 is a block diagram illustrating a configuration of a control unit. FIG. 3 is a block diagram illustrating a configuration of a control unit. FIG. 3 is a block diagram illustrating a configuration of a memory unit. 4 shows the relationship between the management table and the code memory. 5 is a flowchart of a main routine executed by the CPU 1. It is a flowchart of an input control process. It is a flowchart of an input control process. It is a flowchart of an input control process. It is a flowchart of a display control process. It is a screen for requesting input of the direction of the document shown on the liquid crystal touch panel in step S1404 during the display control process. 6 is a flowchart of a main routine executed by a CPU 5. It is a flowchart of the diffraction process of input data. It is a flowchart of the diffraction process of input data. 9 is a flowchart of a command setting process. 9 is a flowchart of a command setting process. 9 is a flowchart of a command setting process. 9 is a flowchart of a main routine executed by a CPU 6. It is a flowchart of a decompression control process. 5 is a flowchart of reading control of an image memory. 5 is a flowchart of a main routine executed by a CPU 7. 9 is a flowchart of a document size detection process. 9 is a flowchart of a document size detection process. (A) shows the state in the image memory of the image data read by the scanner when the portrait document is passed through the document transport section in the horizontal direction, and (b) shows the state in which the portrait document is sent to the document transport section. The image data read by the scanner when the document is passed in the vertical direction is shown in the image memory. FIG. 3C shows the image read by the scanner when the landscape document is passed through the document feeder in the horizontal direction. FIG. 4D shows a state in the image memory of data, and FIG. 6D shows a state in the image memory of image data read by the scanner when a landscape document is passed through the document transport section in the vertical direction. . (A) shows the form of the paper output when the portrait document is bound to the left, (b) shows the form of the paper output when the portrait document is bound to the top, and (c) shows FIG. 7D illustrates a form of a sheet output when the landscape document is bound to the left, and FIG. 9D illustrates a form of the sheet output when the landscape document is bound to the top. FIG. 8 is a diagram illustrating a relationship between a rotation angle and an image when a portrait document is passed laterally through a document conveyance unit and a left-bound sheet is output. FIG. 8 is a diagram illustrating a relationship between a rotation angle and an image when a portrait document is passed laterally through a document conveyance unit and a top-bound sheet is output. FIG. 9 is a diagram illustrating a relationship between a rotation angle and an image when a portrait document is vertically passed through a document conveyance unit and a left-bound sheet is output. FIG. 6 is a diagram illustrating a relationship between a rotation angle and an image when a portrait document is vertically passed through a document transport unit and a top-bound sheet is output. FIG. 6 is a diagram illustrating a relationship between a rotation angle and an image when a landscape document is vertically passed through a document conveyance unit and a left-bound sheet is output. FIG. 9 is a diagram illustrating a relationship between a rotation angle and an image when a landscape document is vertically passed through a document conveyance unit and a top-bound sheet is output. FIG. 6 is a diagram illustrating a relationship between a rotation angle and an image when a landscape document is passed laterally through a document conveyance unit and a left-bound sheet is output. FIG. 9 is a diagram illustrating a relationship between a rotation angle and an image when a landscape document is passed laterally through a document conveyance unit and a top-bound sheet is output.

Explanation of reference numerals

1-8 ... CPU
30 memory unit section 97 binding margin selection key 100 document selection key 304 image memory 307 rotation processing section 500 document transport section

Claims (12)

A document feeder that automatically feeds a document set on a document feed tray and discharges the document to a document discharge unit after the document is read;
A reading device that reads an image of a document and outputs it as image data;
A rotation processing unit that can perform any one of a rotation process of 0 degree, 90 degrees, 180 degrees, and 270 degrees on the image data read by the reading device;
An image forming unit that forms an image on a sheet based on the image data subjected to the rotation processing by the rotation processing unit, and a digital copying machine that can perform image formation on both sides of the sheet.
When the original set in the original feed tray is a portrait and the binding direction of the paper on which images are formed on both sides is long side binding,
When a document set on the document feed tray is in a horizontal direction, the image formed on the front surface of the sheet is subjected to a rotation process of 0 degrees, and the image formed on the back surface of the sheet is rotated by 0 degrees. Subjected to the rotation process,
When a document set on the document feed tray is vertically passed, a rotation process of 270 degrees is performed on an image formed on the front side of the sheet, and 270 degrees is performed on an image formed on the back side of the sheet. A digital copying machine having control means for controlling the rotation processing section so as to perform the rotation processing. A document feeder that automatically feeds a document set on a document feed tray and discharges the document to a document discharge unit after the document is read;
A reading device that reads an image of a document and outputs it as image data;
A rotation processing unit that can perform any one of rotation processes of 0 °, 90 °, 180 °, and 270 ° on the image data read by the reading device;
An image forming unit that forms an image on a sheet based on the image data subjected to the rotation processing by the rotation processing unit, and a digital copying machine that can perform image formation on both sides of the sheet.
When the original set in the original feed tray is portrait and the binding direction of the paper on which images are formed on both sides is short side binding,
When a document set on the document feed tray is in a horizontal direction, a rotation process of 0 degree is performed on an image formed on the front surface of the sheet, and a 180 degree rotation process is performed on the image formed on the back surface of the sheet. Subjected to the rotation process,
When a document set on the document feed tray is vertically passed, a rotation process of 270 degrees is performed on an image formed on the front surface of the sheet, and a rotation process of 90 degrees is performed on the image formed on the rear surface of the sheet. A digital copying machine having control means for controlling the rotation processing section so as to perform the rotation processing. A document feeder that automatically feeds a document set on a document feed tray and discharges the document to a document discharge unit after the document is read;
A reading device that reads an image of a document and outputs it as image data;
A rotation processing unit that can perform any one of a rotation process of 0 degree, 90 degrees, 180 degrees, and 270 degrees on the image data read by the reading device;
An image forming unit that forms an image on a sheet based on the image data subjected to the rotation processing by the rotation processing unit, and a digital copying machine that can perform image formation on both sides of the sheet.
When the original set in the original feed tray is landscape and the binding direction of the paper on which images are formed on both sides is short side binding,
When a document set on the document feed tray is in a horizontal direction, the image formed on the front surface of the sheet is subjected to a rotation process of 0 degrees, and the image formed on the back surface of the sheet is rotated by 0 degrees. Subjected to the rotation process,
When a document set on the document feed tray is vertically passed, a rotation process of 270 degrees is performed on an image formed on the front side of the sheet, and 270 degrees is performed on an image formed on the back side of the sheet. A digital copying machine having control means for controlling the rotation processing section so as to perform the rotation processing. A document feeder that automatically feeds a document set on a document feed tray and discharges the document to a document discharge unit after the document is read;
A reading device that reads an image of a document and outputs it as image data;
A rotation processing unit that can perform any one of a rotation process of 0 degree, 90 degrees, 180 degrees, and 270 degrees on the image data read by the reading device;
An image forming unit that forms an image on a sheet based on the image data subjected to the rotation processing by the rotation processing unit, and a digital copying machine that can perform image formation on both sides of the sheet.
When the original set in the original feed tray is landscape and the binding direction of the paper on which images are formed on both sides is long side binding,
When the document set on the document feed tray is in a horizontal direction, the image formed on the front side of the sheet is subjected to a rotation process of 0 degrees, and the image formed on the back side of the sheet is rotated 180 degrees. Subjected to the rotation process,
When a document set on the document feed tray is vertically passed, a rotation process of 270 degrees is performed on an image formed on the front surface of the sheet, and a rotation process of 90 degrees is performed on the image formed on the rear surface of the sheet. A digital copying machine having control means for controlling the rotation processing section so as to perform the rotation processing. The control means includes:
When the original set in the original feed tray is portrait and the binding direction of the paper on which images are formed on both sides is short side binding,
When the document set on the document feed tray is in a horizontal direction, the image formed on the front side of the sheet is subjected to a rotation process of 0 degrees, and the image formed on the back side of the sheet is rotated 180 degrees. Subjected to the rotation process,
When a document set on the document feed tray is vertically passed, a rotation process of 270 degrees is performed on an image formed on the front surface of the sheet, and a rotation process of 90 degrees is performed on the image formed on the rear surface of the sheet. 2. The digital copying machine according to claim 1, further comprising control means for controlling said rotation processing section so as to perform said rotation processing. The control means includes:
When the original set in the original feed tray is landscape and the binding direction of the paper on which images are formed on both sides is short side binding,
When a document set on the document feed tray is vertically passed, a rotation process of 0 degrees is performed on an image formed on the front surface of the paper, and a rotation process of 0 degrees is performed on the image formed on the back surface of the paper. Subjected to the rotation process,
When the document set on the document feed tray is in a horizontal direction, the image formed on the front side of the sheet is rotated by 270 degrees, and the image formed on the back side of the sheet is rotated by 270 degrees. 6. The digital copying machine according to claim 1, further comprising control means for controlling the rotation processing unit so as to perform the rotation processing. The control means includes:
When the original set in the original feed tray is landscape and the binding direction of the paper on which images are formed on both sides is short side binding,
When the document set on the document feed tray is vertically passed, the image formed on the front surface of the sheet is subjected to a rotation process of 0 degrees, and the image formed on the back surface of the sheet is rotated 180 degrees. Subjected to the rotation process,
When the document set on the document feed tray is in a horizontal direction, the image formed on the front side of the sheet is rotated by 270 degrees, and the image formed on the back side of the sheet is rotated by 90 degrees. 7. The digital copying machine according to claim 1, further comprising control means for controlling the rotation processing unit so as to perform the rotation processing. Further, the image processing apparatus has a determination unit for determining whether the document is a portrait or a landscape,
The digital copying machine according to claim 1, wherein the control unit controls the rotation processing unit based on a determination result of the determination unit. Furthermore, there is input means for inputting whether the original is a portrait or a landscape,
The digital copying machine according to claim 1, wherein the control unit controls the rotation processing unit based on an input result of the input unit. Further, the image forming means has a selection means for selecting whether to provide a binding margin in a longitudinal direction or a short direction of the sheet when forming an image on the sheet, and the control means includes Determining whether the binding direction of the document is long-side binding or short-side binding based on the binding margin direction selected by the means, and controlling the rotation processing unit based on a result of the determination. The digital copying machine according to claim 1. Further, the apparatus has size detecting means for detecting the size and direction of the document set on the document feed tray, and determines whether the document passes horizontally or vertically by the size detecting means. The digital copying machine according to claim 1, wherein the digital copier controls the rotation processing unit. The size detection means detects the width of the document and the length of the document measured based on the transport time during which the document is transported, thereby detecting the size of the document set on the document feed tray. The digital copier according to claim 11, wherein the digital copier detects the direction and direction.

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