JP3671584B2 - Image forming apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides an image forming apparatus having an OHP interleaving mode for controlling an image forming operation sequence so that OHP interleaving paper (plain paper) and OHP sheets (overhead projector paper) are alternately stacked on a paper discharge tray. About.
[0002]
[Prior art]
Japanese Patent Laid-Open No. 62-59971 discloses that in the OHP interleaving mode, the OHP paper on which the original image has been copied and the white OHP interleaving paper are alternately discharged so as to overlap on the paper discharge tray. A copier is disclosed.
In Japanese Patent Laid-Open No. 4-362968, in the OHP interleaving mode, the OHP paper on which the original image has been copied and the OHP interleaf on which the same original image has been copied are discharged so as to overlap on the paper discharge tray. A copier is disclosed.
[0003]
In addition, in the OHP interleaving paper mode, a copier that discharges the OHP interleaving paper, which has been copied in the same color as the OHP paper on which the color original image has been copied, in an overlapping manner on the paper discharge tray. In addition, the present applicant has proposed a copying machine in which multi-copy paper, OHP paper, and OHP interleaving paper prepared for distribution are copied in a set copy mode.
[0004]
[Problems to be solved by the invention]
When a presentation or the like is performed using OHP, it may be desired to know how the image being projected on the screen is positioned with respect to the image of the preceding and / or subsequent OHP sheet. However, the image created on the OHP interleaf by the conventional image forming apparatus is an image formed on the corresponding OHP sheet, and is not an image of the preceding and / or succeeding other OHP sheet. Therefore, in order to know an image of another OHP sheet, it is necessary to find an OHP slip sheet corresponding to the other OHP sheet. However, it is difficult to quickly find such OHP slips during the presentation.
[0005]
The present invention provides an image forming apparatus capable of forming an image related to an image of an OHP sheet on a corresponding OHP slip sheet so that the presenter can easily grasp the position of the image being projected on the screen. For the purpose.
[0006]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an interleaf sheet mode control means for controlling an image forming operation sequence so that plain paper and an OHP sheet are alternately stacked on a discharge tray when an OHP interleaf mode is set, and an OHP An original image is formed on a sheet, and a corresponding OHP sheet is formed on plain paper. Manuscript On the image In relation to the original image group, plural Manuscript And an image forming control unit that controls each image forming operation so as to form an image.
[0007]
According to a second aspect of the present invention, there is provided an interleaf mode control means for controlling an image forming operation sequence so that plain paper and an OHP sheet are alternately stacked on a paper discharge tray when the OHP interleaf mode is set; In the slip-sheet mode , The target of image formation on the OHP sheet Related to the original image In the group of manuscript images plural Manuscript the image , each The target of image formation on the OHP sheet Related image input means for specifying each of the original images, and a plurality of Manuscript Storage means for storing images; and The target of image formation on the OHP sheet The original image is formed on the OHP sheet, and the original image specified by the related image input means The target of image formation on the OHP sheet Multiple related to the original image Manuscript Read image from the storage means Corresponding to the OHP sheet And an image forming unit that forms an image on a sheet of plain paper.
[0008]
According to a third aspect of the present invention, in the second aspect of the present invention, a plurality of images specified by the related image input means are provided. Manuscript The image is selected from a series of document images preceding and / or following the document image formed on the OHP sheet. Manuscript An image forming apparatus that is an image.
[0009]
The invention of claim 4 is the invention of claim 2,
The related image input means includes The target of image formation on the OHP sheet Multiple related to the original image Manuscript Image The target of image formation on the OHP sheet Means for inputting as a relative position in a series of document groups with respect to a document image
An image forming apparatus.
The designation of the relative position can be performed, for example, as “front 1” “0” “rear 1” “rear 2”. “Front 1” means the immediately preceding original image, “0” means the original image, “After 1” means the immediately following original image, and “Back 2” means the original image immediately after the immediately following original image. .
[0010]
According to a fifth aspect of the present invention, in the second aspect, the related image input means includes: The target of image formation on the OHP sheet Multiple related to the original image Manuscript Image The target of image formation on the OHP sheet The image forming apparatus is a means for inputting as a relative position in a series of document groups with respect to a document image.
[0011]
The invention of claim 6 is the invention according to claim 5, wherein the setting means sets a plurality of Manuscript The image is formed on the OHP sheet Should The image forming apparatus is a plurality of document images preceding and / or following the document image.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be specifically described with reference to the drawings.
[0015]
1. First embodiment.
1 to 20 show a mechanism, a control circuit, an outline of an operation procedure, an operation panel, a control procedure, an OHP sheet, an OHP interleaf, an embodiment of the first embodiment in which the image forming apparatus of the present invention is embodied as a copying machine. An example of a distribution sheet image is shown.
[0016]
1-1. Outline of mechanism and operation of copier.
FIG. 1 schematically shows the mechanism of the copying machine of the first embodiment. The copying machine shown in the figure has a document reading part IR, a printer part PRT, and an operation panel OP (not shown in FIG. 1), and an ADF (automatic document feeder) 500 is set on the top of the document table glass 18. ing.
[0017]
The document reading unit IR includes a document scanning unit 10, an image signal processing unit 20 that processes an image signal output from the document scanning unit 10, and a memory that stores image data generated by processing in the image signal processing unit 20. And a unit portion 30.
[0018]
That is, the document reading unit IR exposes and scans the document on the document table glass 18 by the first moving body 19 on which the exposure lamp 11 and the first mirror 12 are mounted, and reflects the reflected light to the second mirrors 13a and 13b and the lens system. 14 through the CCD line image sensor 16 to form an image, and the image signal photoelectrically converted by the CCD line image sensor 16 is sent to the image signal processing unit 20 for processing to generate image data. Is stored in the memory of the memory unit 30. Note that the movement of the first moving body 19 for sub-scanning (movement in the left-right direction in the figure) is performed by the scanner motor M2. The CCD line image sensor 16 is formed by arranging a large number of photoelectric conversion elements in a direction orthogonal to the drawing sheet. For example, the CCD line image sensor 16 reads an image at 400 dpi and outputs an electrical signal corresponding to each pixel.
[0019]
The memory unit 30 compresses and stores the image data received from the image signal processing unit 20, expands the stored compressed data, and performs editing processing such as rotation and scaling as necessary. Send to printer PRT. The image signal processing unit 20 and the memory unit unit 30 will be described later.
[0020]
The printer unit PRT drives the laser diode 62 based on the print processing unit 40 that generates an image recording signal based on the image data read from the memory unit unit 30 and the image recording signal output from the print processing unit 40. The print head unit 60 writes an electrostatic latent image on the surface of the photosensitive drum 71 by the laser beam output from the laser diode 62, and the electrostatic latent image formed on the surface of the photosensitive drum 71 by the print head unit 60 And an image forming unit 70 that fixes the toner after developing the toner and transferring it onto a sheet, and discharging the toner to the outside of the apparatus.
[0021]
That is, the printer unit PRT writes an electrostatic latent image corresponding to an image recording signal on the photosensitive drum 71, develops the electrostatic latent image with toner, and transfers the developed toner image onto a sheet. An operation, an operation of fixing the toner image on the paper, and an operation of feeding the paper to the transfer position and transporting the paper on which the toner image has been transferred to the fixing position and discharging it after fixing are performed.
[0022]
In the operation of forming an electrostatic latent image on the surface of the photosensitive drum 71, the image data read from the memory circuit 30 is converted into an image recording signal for driving the laser by the print processing unit 40, and the laser is used as the image recording signal. By driving the diode 62, a laser beam corresponding to the image is output, and this laser beam is passed through the polygon mirror 65 and the optical systems 69, 67a, 67b to the charged surface of the photosensitive drum 71 that is rotationally driven. This is realized by forming an image. The surface of the photosensitive drum 71 is uniformly charged by the charging charger 72 on the upstream side of the laser beam incident position.
[0023]
The operation of developing the electrostatic latent image with toner is realized by attaching the toner in the developing device 73 to the electrostatic latent image formed on the surface of the photosensitive drum 71 that is rotationally driven. Further, the operation of transferring the toner image developed on the surface of the photosensitive drum 71 onto the sheet is performed by sucking the toner image by the transfer charger 74 and transferring it onto the sheet fed to the transfer position. Realized. The operation of fixing the toner image transferred onto the sheet is performed by separating the sheet onto which the toner image has been transferred from the photosensitive drum 71 by the separation charger 75 and then conveying the sheet to the fixing device 84 by the conveying belt 83. This is realized by performing image fixing processing by thermocompression bonding in the fixing device 84. Note that the toner remaining on the photosensitive drum 71 after the transfer of the toner image is removed by a cleaner 76 provided on the downstream side. The photosensitive drum 71 is rotated at a constant speed by the main motor M1.
[0024]
The operation of transporting the paper is to transport the paper ejected from either one of the selected paper trays 80a and 80b through the transport path, temporarily stop at the position of the timing roller pair 82, and then perform photosensitive operation at a predetermined timing. The paper is fed to a transfer position between the body drum 71 and the transfer charger 74. After the transfer, the paper is transported to the fixing device 84 by the transport belt 83. After fixing, the refeed unit (= sorter unit) 600 is discharged by the discharge roller pair 85 To be discharged. The presence or absence of paper in the paper trays 80a and 80b is detected by sensors SE13 and SE14, and the paper size is detected by sensors SE11 and SE12.
[0025]
In this example, an OHP sheet is stored in one of the paper trays 80a and 80b, and plain paper of the same size as the OHP sheet is stored in the other. Plain paper is used as OHP interleaving paper as well as distribution paper. In the figure, the case of two paper trays is shown, but three or more paper trays may be used. Further, the OHP interleaving paper and / or the distribution paper may be the same size as the OHP sheet or may be a different size. When the OHP sheet and the OHP interleaf are the same size, subsequent handling is easy. A sensor group for detecting the conveyance state is provided in the above-described sheet conveyance path. For example, a sensor SE15 is provided immediately before the timing roller pair 82, a sensor SE16 is provided at the position of the conveyor belt 83, and a sensor SE17 is provided immediately after the discharge roller pair 85.
[0026]
The paper (OHP sheet or plain paper) discharged from the discharge roller 85 is sent to a refeed unit (= sorter unit) 600. In the single-sided copying mode in which an image is formed on one side of the paper, or after the image is formed on the second side in the double-sided mode in which an image is formed on both sides of the paper, the paper is placed on the upper surface of the switching claw 601. The paper is guided and sent to the sorter unit, where it is discharged to either the non-sort tray (ordinary paper discharge tray) 621 or the sort tray group 630. Note that the sensor SE62 detects that the sheet has been sent to the sorter unit. In this example, the OHP sheet and the OHP interleaving paper are discharged to the non-sort tray 621, and the paper printed for distribution is discharged to the sort tray group 630.
[0027]
On the other hand, the sheet after the image is formed on the first side in the duplex mode in which images are formed on both sides of the sheet is guided to the left side of the switching claw 601 in the drawing and sent to the refeeding unit. In the paper re-feeding unit, the sheet is conveyed by the conveying roller 602 and reaches the reversing roller 603. Next, the rotation direction of the reversing roller 603 is changed at the timing when the rear end of the sheet passes the sensor SE61 just before the reversing roller 603. Reversed. As a result, the paper is reversed in the traveling direction, sent to the refeed path side, conveyed by the refeed roller groups 86a, 86b, 86c, and reaches the timing roller pair 82. Thereafter, as in the case of normal sheet feeding, the sheet is sent to the transfer position at a predetermined timing, and image formation on the second surface is performed. When a plurality of sheets are continuously fed, the sheets are fed to the refeed unit 600 with a gap between the sheets so that the sheets do not overlap. Since the sheet transport path length is constant, the number of sheets that can be circulated by the refeed unit 600 as described above depends on the sheet size. The switching operation for causing the switching claw 601 to act as described above is performed by a solenoid (not shown).
[0028]
In this copying machine, an automatic document feeder (ADF) 500 is provided on the platen glass 18. When the ADF 500 is activated, among the originals (one or more originals) set on the original tray 510 with the image surface facing upward, the lower side original is sent out by the paper feed roller 501, and from there, Only one of the lowermost layer is rolled out by the roller 502 and the rolling pad 503, and further fed by the intermediate roller 504 to the registration roller 505. The registration roller 505 temporarily stops and the skew feeding is corrected. Thereafter, the sheet is fed onto the platen glass 18 by the conveying belt 506. The fact that the document has reached the position of the registration roller 505 is detected by the sensor SE15 and its width size is detected by the sensor SE53.
[0029]
When the trailing edge of the document passes through the document scale 512, the conveyor belt 506 is slightly reversed, whereby the trailing edge of the document is positioned at the edge of the document scale 512. At this time, if there is a next document, the leading edge of the next document reaches the registration roller 505 and is waiting at the position of the registration roller 505. As a result, the time required for transporting the next original is shortened.
[0030]
When the document is positioned by the document scale 512 and set on the platen glass 18, the scanner 19 of the copier, which is provided below the automatic document feeder 500 and controlled in cooperation, is operated, and the document image The surface is read. When the document reading operation by the scanner 19 is completed and a signal to that effect is sent from the copying machine side to the CPU 107 (see FIG. 2) of the ADF 500, the transport belt 506 is driven again. As a result, the document is conveyed leftward in the drawing and reaches the reverse roller 507.
[0031]
Thereafter, the image is guided to the upper surface of the switching claw 508 and discharged onto the discharge tray 511 upward by the discharge roller 509 (after the second side reading in the single-sided original mode or the double-sided original mode). Alternatively, it is guided to the lower surface of the switching claw 508 and turned upside down and set on the original glass 18 again (after the first side reading in the double side original mode is completed).
[0032]
1-2. Control circuit.
2 and 3 show the overall configuration of the control circuit of the copying machine, FIG. 4 shows the configuration of the image signal processing unit 20 in FIG. 2, and FIG. 5 shows the configuration of the memory unit unit 30 in FIG. FIG. 9 shows the operation panel OP of the copying machine, and FIG. 10 shows a screen display example in the related image input mode of the liquid crystal panel 91 in the operation panel OP.
[0033]
As shown in FIG. 9, on the operation panel OP, a numeric key 92 for inputting a set number such as the number of copies and a copy magnification, a clear key 93 for returning the set number to a standard value, and the like are set inside the copying apparatus. Panel reset key 94 for returning the set value to the standard value, stop key 95 for inputting operation stop, start key 96 for inputting start of operation, OHP for commanding setting of OHP interleaf mode An interleaf mode key 97, an OHP interleaf mode display LED 97a that lights and displays that the OHP interleaf mode has been set, an associated image registration activation key 98 for instructing activation of the associated image input mode, and an OHP interleaf A related image registration display LED 98a that lights and displays that the related image to be output is registered, a paper size selection key 99 for selecting a paper size, and a selected paper size (for example, A4Y is A A paper size display LED 99a and a liquid crystal panel 91 are provided to light up and display the size horizontally, B5T is B5 size vertically; landscape is the direction where the longitudinal direction and the paper transport direction intersect, and the portrait is the same direction). ing.
[0034]
The LCD touch panel 91 has various states of the copier such as jam occurrence, serviceman call, paper empty occurrence, trouble occurrence, etc., and copy machine operation such as exposure level, magnification, paper, etc. In addition to displaying various modes and other information, for example, touch panel switches (buttons) and messages for selecting and registering a plurality of images (related images) related to the document image in the OHP interleaf mode The operation mode selection screen is displayed. Registration of related images to be output on the OHP slip sheet will be described later.
[0035]
As shown in FIGS. 2 and 3, the control circuit of the copying apparatus is configured by using seven CPUs of a first CPU 101, a second CPU 102, and a fourth CPU 104 to an eighth CPU 108. Each of the CPUs 101, 102, 104 to 108 is connected to ROMs 111, 112, 114 to 118 storing programs, and RAMs 121, 122, 124 to 128 serving as work areas.
[0036]
The first CPU 101, the second CPU 102, and the sixth CPU 106 are connected to each other by a command line connected to the serial I / O 190. The serial I / O 190 is connected with a fifth CPU 105 and a command line for connecting the seventh CPU 107 and the eighth CPU 108. The fourth CPU 104 and the fifth CPU 105 are connected to each other by a command line.
[0037]
The first CPU 101 receives inputs from the operation keys 92 to 99 of the operation panel OP and the touch panel switches (buttons) of the liquid crystal panel 91, and performs display control of the display LEDs and the liquid crystal panel 91. For this reason, each key switch, LED element, and liquid crystal panel 91 of the operation panel OP are connected to the I / O for the first CPU 101.
[0038]
The second CPU 102 controls the image signal processing unit 20 and the operation of the scanning system 10. Therefore, as shown in FIG. 4, the I / O of the second CPU 102 is connected with a drive circuit for the scanner motor M2 for moving the scanner (moving body) 19 and the like of the scanning system 10 in the sub-scanning direction. A signal from a sensor for detecting the position of the scanner is input. The scan speed is determined according to the magnification set from the operation panel OP and given from the CPU 105. The document size is detected by a known preliminary scan. An image signal from the CCD 16 is input to the image signal processing unit 20 connected to the second CPU 102, subjected to a predetermined process, and converted into image data D2. The image data D2 is sent to the memory unit 30.
[0039]
As shown in FIG. 4, the image signal processing unit 20 includes an amplifier 23, an A / D converter 25, a shading correction unit 26, a density conversion unit 27, an electric scaling unit 28, an editing processing unit 29, an image monitor memory 24, In addition, a timing control unit 21 that supplies an image reading synchronization signal thereto is provided. The electric signal input from the CCD 16 is amplified by the amplifier 23 and then converted into 8-bit digital data by the A / D converter 25. This digital signal is subjected to correction of element unevenness or the like by the shading correction unit 26, and then converted from reflection data to density data or γ correction by the density conversion unit 27. Next, the image is sent to the electric zooming unit 28, subjected to electric zooming processing in the main scanning direction based on the set magnification information, and further subjected to image editing processing in the editing processing unit 29. . The image data D2 processed in this way is sent to the memory unit section 30. The image monitor memory 24 stores image data for one line such as shading correction sample data in accordance with an instruction from the CPU 102. The CPU 102 performs overall control related to the image reading operation such as parameter setting for the processing units 26 to 28, scan control by driving the scanner motor M2, communication with the host CPU 105, and the like.
[0040]
The fourth CPU 104 controls the printer unit PRT including the print processing unit 40. For this reason, the I / O for the fourth CPU 104 includes a main motor M1 for operating various members in the printer unit PRT, a clutch drive circuit for each part of the image forming system, operating conditions of each unit in the printer unit PRT, etc. A sensor (image forming system sensor, paper size detection sensor, paper presence sensor) circuit is detected. In addition, image data D3 sent from the memory unit unit 30 is input to the print processing unit 40, and a drive circuit for the laser diode 62 is connected to the print processing unit 40.
[0041]
The fifth CPU 105 performs processing for overall timing adjustment of the control circuit 100 and setting of the operation mode. For this reason, the fifth CPU 105 is connected to the fourth CPU 104 on the command line. In addition, serial communication is performed with other CPUs 101, 102, 106, 107, and 108, and commands and reports necessary for control are transmitted and received.
[0042]
The sixth CPU 106 controls the memory unit 30. That is, the image data D2 sent from the image signal processing unit 20 is compressed and stored in the code memory 306. In the printing operation, the compressed data is read from the code memory 306, decompressed, and output to the print processing unit 40.
[0043]
As shown in FIG. 5, the memory unit 30 includes a bus switching unit 301, a binarization processing unit 302 for creating binary data based on parameter settings from the CPU 106, and a capacity for two pages of A4 size with 400 dpi. A multi-port image memory 304, a code processing unit 305 having a compressor 311 and an expander 312 that can operate independently, a multi-port code memory 306, a rotation processing unit 307, and multi-value data based on parameter settings from the CPU 106 Are composed of a multi-value quantization processing unit 308, a scaling unit 309, and a sixth CPU 106 for controlling them. That is, in the memory unit 30, the image data is stored in the code memory 306 in a compressed state.
[0044]
In the binarization processing unit 302, the 8-bit image data D2 input from the image signal processing unit 20 via the bus switching unit 301 is within a range in which the multivalued image data D3 can be restored by, for example, dithering. The binarization process is performed based on the parameter setting from the CPU 106.
[0045]
The code processing unit 305 reads out the image data written in the image memory 304 and compresses it with the compressor 311, and writes this in the code memory 306. Also, in accordance with a command from the CPU 106, the code data to be printed is read from the code memory 306, decompressed by the decompressor 312 and written into the image memory 304. When writing image data for a plurality of pages into the image memory 304, expansion can be controlled according to the writing position and writing area. For example, in the case of outputting an image to an OHP slip according to the setting from the operation panel OP, the necessary image is encoded based on the information sent from the CPU 101 by serial communication and the information in the management table MT1. It is read from the memory 306 and written to the image memory 304. The compressor 311 and the decompressor 312 are configured to be able to operate independently and in parallel for improving the printing speed, and between these and the code memory 306, data is transferred by a DMA controller (not shown). DMA transferred. Also, since the hardware circuit having the same configuration is used for the compressor 311 and the decompressor 312, the compression process and the decompression process can be processed in the same time.
[0046]
When the code read from the code memory 306 is expanded and one page of image data is generated, the image data is read from the image memory 304 in response to a command from the CPU 106 and rotated as necessary. Rotation processing is performed in the processing unit 308, and multi-valued image data is restored in the multi-value processing unit 309, which is output to the print processing unit 40 as image data D3 through the scaling processing unit 309. . The scaling processing unit 309 can perform electrical scaling processing in both main and sub directions.
[0047]
The code memory 306 is divided into memory areas in units of 32 KB, and code data in units of pages is stored in each memory area. This is to enable simultaneous control of writing and reading. The code memory 306 is managed by a management table MT1 shown in FIG.
[0048]
In the management table MT1, an area number indicating each memory area of the code memory 306, a page number PN of each original image given in the order of writing, and code data stored in a certain memory area are stored in another memory area. If the code data of the same page connected to the code data that is connected, "pre-concatenation" indicating the area number of the other memory area, code data stored in a certain memory area is stored in another memory area If it is code data of the same page preceding the code data that is present, “rear concatenation” indicating the area number of the other memory area, various image registration numbers, various compression methods and data length required for compression / decompression processing such as data length, etc. Additional information is stored. When “previous concatenation” indicating the forward connection every 32 KB in each page is “00”, this indicates the first storage area of the code data for one page. In addition, when the “rear link” indicating the backward link every 32 KB in each page is “FF”, it indicates that this is the final storage area of the code data for one page. Based on this information, the code memory 306 is dynamically managed.
[0049]
The sixth CPU 106 controls the compressor 311 and stores it in the code memory 306 while creating information of the management table MT1 when the image data is read out from the image memory 304 and compressed. Further, when outputting the image data, the code data is read from the code memory 306 by an operation reverse to the above. The information in the management table MT1 is erased when the data on the page is normally read and the designated number of prints are completed.
[0050]
The seventh CPU 107 controls the document conveyance / stop / discharge operation by the automatic document conveyance device 500. The eighth CPU 108 controls the operation of the refeed unit (sorter unit) 600.
[0051]
1-3. Sequence of copying operation.
Next, an operation sequence of the copying machine will be described with reference to a request command Q transmitted and received between the CPUs shown in FIGS. 7 and 8 and a report A corresponding thereto.
[0052]
First, the fifth CPU 105 for sequence management requests the sixth CPU 106 for management of the memory unit 30 to prepare the memory. In response to this, the sixth CPU 106 transfers the image data D2 from the image signal processing unit 20 to the image memory 304 to the hardware of the memory unit 30, and a mode for binarization processing. (Example: error distribution method, threshold for background removal, binarization threshold, etc.), start address of writing area of image memory 304, XY length information, etc. are set.
[0053]
When the above setting is completed, the sixth CPU 106 notifies the fifth CPU 105 of the completion of memory preparation. Thereby, the fifth CPU 105 requests the sixth CPU 106 and the second CPU 102 to read the document image. In response to this request, the second CPU 102 requests the original document scanning control unit to scan. Thereby, the document image scanning is performed by the document scanning control unit, and the image signal read by the scanning is processed by the image signal processing unit 20 in accordance with the image processing mode set by the second CPU. Further, the image data D2 (read data) generated by this processing is transferred to the memory unit 30.
[0054]
When the document image scanning is completed, a notification to that effect is sent from the document scanning control unit in the second CPU 102 to the control unit in the second CPU 102. Accordingly, the second CPU 102 and the sixth CPU 106 notify the fifth CPU 105 that the reading operation has been completed. In response to this notification, the fifth CPU 105 requests the sixth CPU 106 to compress the image data in the image memory 304. In response to this, the sixth CPU 106 sets the read address of the image memory 304, the XY length information, the write address of the code memory 306, the compression mode (eg, arithmetic coding method, MH method, etc.) of the compressor 311, etc. Then start each part. As a result, compression processing is performed and the code data is stored in the code memory 306.
[0055]
When the compression process is completed, the sixth CPU 106 notifies the fifth CPU 105 of the completion of the compression process. When the code memory 306 is full, a compression completion report added with a parameter indicating that compression is impossible is sent from the sixth CPU 106 to the fifth CPU 105. As a result, the fifth CPU 105 can know the full state of the code memory 306.
[0056]
As described above, the code data stored in the code memory 306 is read in response to a decompression request sent from the fifth CPU 105 to the sixth CPU 106.
That is, when a decompression request is sent from the fifth CPU 105 to the sixth CPU 106, the sixth CPU 106 reads the read address of the code memory 306, the XY length information, the write address of the image memory 304, and the decompression mode (eg, arithmetic) of the decompressor 312. (Encoding method, MH method) and the like are set, and each unit is activated. As a result, decompression processing is performed, and image data is written in the image memory 304.
[0057]
When the decompression process is completed, the sixth CPU 106 notifies the fifth CPU 105 of the completion of the decompression process. In response to this, the fifth CPU 105 requests the sixth CPU 106 to prepare a memory for reading the image data D3 in the image memory 304. In response to this, the sixth CPU 106 causes the hardware of the memory unit 30 to transfer the image data D3 from the image memory 304 to the print processing unit 40, the mode of the rotation processing, and the image memory 304. A read area start address, XY length information, and the like are set.
[0058]
When the above setting is completed, the sixth CPU 106 notifies the fifth CPU 105 of the completion of memory preparation. As a result, the fifth CPU 105 requests the sixth CPU 106 and the fourth CPU 104 to perform a printing operation. In response to this request, a paper feed report is sent from the fourth CPU 104 to the fifth CPU 105 informing the paper transport state. Thereafter, the image data D3 read from the image memory 304 is output to the print processing unit 40, and a printing operation is performed.
[0059]
When the printing operation is completed, the sixth CPU 106 and the fourth CPU 104 notify the fifth CPU 105 of the completion of printing. In addition, an ejection completion report is sent from the fourth CPU 104 to the fifth CPU 105. Receiving these reports, the fifth CPU 105 sends a memory clear request to the sixth CPU 106 as necessary.
In this way, a sequence of copying operations is performed.
[0060]
1-4. Outline explanation according to the flow chart.
Next, characteristic control of the copying machine will be described in accordance with the processing of the first CPU 101, the fourth CPU 104, the fifth CPU 105, and the sixth CPU 106.
[0061]
1-4-1. First CPU101.
As shown in FIG. 11, when the power is turned on, the first CPU 101 first performs initialization for initializing the RAM 121, registers, and the like (S11).
[0062]
Next, a set of internal timers defining the execution time of one routine (S12), a key input process for accepting key operations (S13), a panel for turning on / off the LED elements and displaying the liquid crystal panel 91 in accordance with the key operations, etc. Display processing (S14) and other processing (S15) other than these processing are performed. The other processing (S15) includes processing (registration key processing) for registering a plurality of images to be output to the OHP slip sheet in the OHP slip sheet mode. Details of the registration key process will be described later with reference to FIGS. 10 and 15 to 17.
[0063]
Each of the above processes is repeatedly executed every time defined by the internal timer set in step S12. In the meantime, communication processing with other CPUs is performed by interruption at appropriate times.
[0064]
1-4-2. Fourth CPU 104.
As shown in FIG. 12, when the power is turned on, the fourth CPU 104 first performs initialization for initializing the RAM 124, registers, and the like (S41).
Next, set the internal timer that defines the execution time of one routine (S42), control of the development / transfer system (S43), control of the transport system (S44), control of the fixing system (S45), control of the print processing unit (S46) and other processes (S47) other than these processes are performed. Each of these processes is repeatedly executed every time defined by the internal timer set in step S42.
[0065]
1-4-3. 5th CPU105.
As shown in FIG. 13, when the power is turned on, the fifth CPU 105 first performs initialization for initializing the RAM 125, registers, and the like (S51).
Next, an internal timer for defining the execution time of one routine (S52), an input data analysis process for checking input data from another CPU (S53), and a mode setting process for determining an operation mode according to the operation content (S54), interrupt switching process (S55), command setting process (S56) for setting a command according to the mode, output data set process (S57) for waiting the command at the communication port, and other processes other than these processes Processing (S58) is performed. Each of these processes is repeatedly executed every time defined by the internal timer set in step S52.
[0066]
1-4-4. Sixth CPU 106.
As shown in FIG. 14, when the power is turned on, the sixth CPU 106 first performs initialization for initializing the RAM 126, registers, and the like (S61).
Next, command reception processing (S62), status transmission processing (S63), image memory writing processing (S64), compression control processing (S65), decompression control processing (S66), image memory reading processing (S67), and these Other processes (S68) other than the above process are repeatedly executed. In the image memory reading process (S67), the slip sheet mode executed when the desired image data (for OHP sheet / OHP slip sheet / distribution sheet) is read from the memory unit 30 in the OHP slip sheet mode. Read control (FIG. 18) is also included. Details of the slip sheet mode reading control will be described later.
[0067]
1-5.Registration key processing.
FIG. 15 shows the registration key process included in step S15 of FIG. 11, and FIGS. 16 to 17 show the document registration key process of step S1521 of FIG. FIG. 10 shows an example of a screen displayed on the liquid crystal panel 91 of the operation panel OP in the registration key process.
[0068]
In the registration key process (S15a), first, the state A is checked (S1501). State A is 0 in the initial state when the power is turned on, and whether or not a mode (related image input mode) for registering a plurality of images (related images) to be output to the OHP slip sheet is set in the OHP slip sheet mode. Indicate.
[0069]
When the state A is 0 and the OHP interleaf mode is not set (S1511; NO), the state A is set to 0 (S1515) and the related image input mode is set. The LED 98a shown is turned off (S1516). As described above, the OHP slip sheet mode is a mode that is set / cancelled by operating the OHP slip sheet mode key 97, and the setting state is displayed by turning on the LED 97a.
[0070]
When the state A is 0 and the OHP slip sheet mode is set (S1511; YES), the operation of the registration start key 98 is waited (S1512; NO → return), and the registration start key 98 is pressed. If it is determined (S1512; YES), 1 is set in the state A (S1513), and a document registration screen for registering a plurality of images (related images) to be output on the OHP slip is displayed (S1514). .
[0071]
Thus, when the state A is set to 1, the process proceeds from step S1501 to step S1521, and the document registration process shown in FIGS. 16 to 17 is performed.
[0072]
In the document registration process (S1521), first, the state B is checked (S1551). The state B indicates the presence / absence of input from the touch panel switches (buttons) 911, 912, 913, and 914 shown in FIG. State B is set to 0 in the initial state when the power is turned on.
[0073]
If state B is 0 and there is no button input (S1561; NO), the initial screen of the original registration screen is displayed (S1562), 0 is set in state B (S1563), and this subroutine is executed. finish. On the other hand, if there is a button input (S1561; YES), 1 is set in the state B (S1564), and this subroutine is completed.
[0074]
When the state B is set to 1, the process proceeds from step S1561 to step S1571, and button input is checked. If there is no input, this subroutine ends. When there is a button input, processing according to the type is performed.
[0075]
For example, when the target OHP designation button 911 is pressed, the processes of steps S1581 to S1583 are performed. In other words, the data set on the current screen is stored (S1581), the processing other than the numeric keypad input that specifies the target OHP with respect to the numeric keypad input is prohibited and the display change is prohibited (S1582). A process of permitting acceptance of numeric keypad input for designating the target OHP document and permitting display on the display unit 910a and the display unit 911a is performed (S1583). Thereafter, the numerical value input from the numeric keypad 92 is handled as data for designating the target OHP document, and is displayed on the display units 910a and 911a. In FIG. 10, “2” is displayed.
[0076]
If the document designation button 912 is pressed, the processes in steps S1584 to S1588 are performed. In other words, the data set on the current screen is stored (S1584), and accepting other than numeric keypad input for designating a manuscript (a plurality of related manuscripts to be output on OHP slip sheets) is prohibited and display is changed. Is permitted (S1585), and on the condition that the number of registered related manuscripts is 3 or less (S1586; YES), the ten-key input for specifying the related manuscript is accepted and displayed. Processing for permitting display on the part 912a is performed (S1587). Thereafter, the numerical value input from the numeric keypad 92 is handled as data for specifying the related document and displayed on the display unit 912a. In FIG. 10, “6” is displayed. In the case of this apparatus, the maximum number of related documents to be output on the OHP slip sheet (that is, the area is reduced to 1/4 of the slip sheet size and displayed as the slip sheet in FIG. 20A). Yes, and one of them is the same as the image to be output on the OHP sheet and is already occupied. If it is determined in step S1586 that the number of registered related documents exceeds 3, (S1586; NO ), The reception of the numeric keypad is prohibited (S1588). The reason why the maximum number is 4 in the above is that it is easy to see when output on OHP interleaving paper, and other settings (2, 3, 5, 6,...) Are naturally possible. is there.
[0077]
If the document registration button 913 is pressed, the process of step S1589 is performed. That is, a process of displaying the document number of the registered related document on the display unit 913a is performed. In FIG. 10, “2”, “3”, and “6” are displayed. It should be noted that “2” displayed in the upper left column is the same as the output image to the OHP sheet as described above.
[0078]
With the above processing, for the original image designated as the output target to the OHP sheet, the images (a plurality of related images) to be output to the OHP slip corresponding to the OHP sheet (= superposed as a pair) are registered. Processing to output the registered image to the OHP slip sheet becomes possible. Here, the set information is transferred to the control CPU 106 of the memory unit 30 by serial communication.
[0079]
When the registration end button 914 is pressed, the determination in step S1531 in FIG. 15 is “YES”, and the processes in steps S1532 to S1536 are executed. That is, data set on the original registration screen is stored (S1532), 0 is set in each of states A and B (S1533, S1534), indicating that the image to be output to the OHP slip has been registered. The LED 98a is turned on (S1535), and the liquid crystal panel 91 is returned to the basic screen (S1536).
[0080]
1-6. Interleaf mode reading control.
FIG. 18 shows the slip sheet mode reading control included in step S67 of FIG. In the slip sheet mode reading control, processing for reading image data from the memory unit 30 is performed in the OHP slip sheet mode.
[0081]
In the OHP slip sheet mode (S6701; YES), if there is a request to read image data from the code memory 306 (S6703; YES), the state is confirmed (S6711), and processing according to the result Is done. If the mode is not the OHP slip sheet mode (S6701; NO), or if there is no request for reading image data from the code memory 306 (S6703; NO), the state is set to 0 and this subroutine is terminated. . The state is set to 0 in the initial state when the power is turned on.
[0082]
If the state is 0, 1 is set to the state (S6721), and the read mode is confirmed (S6722). That is, it is confirmed whether the image to be output to the OHP slip sheet is read or whether the image to be output to other than the OHP slip sheet (OHP sheet / distribution sheet) is read. As a result, if it is not an image to be output to the OHP slip sheet, the process proceeds to step S6723, and processing for checking and reading out the image data of the target document with the management table MT1 is started.
[0083]
On the other hand, if the reading mode is a mode for reading an image for output to an OHP slip sheet, the process advances to step S6724 to check the registered image (related image) data and the image data of the target document in the management table MT1. The process of reading out a maximum of four images to be combined and formed on one sheet (OHP slip sheet), in other words, reducing each image by reducing the area to 1/4 of the OHP slip sheet size. A reading process is started to form an image so as not to overlap the OHP interleaving paper.
[0084]
If the state is 1 in step S6711, the process proceeds to step S6731, and the process of reading the image data started reading in step S6723 or S6724 is continued (S6731). When the reading is completed (S6732; YES), the state Is set to 0 (S6733), the CPU 105 is notified of the end of the read operation (S6734).
[0085]
1-7.Output tray switching process.
FIG. 19 shows sheet discharge tray switching control, which is a subroutine executed during the processing of the CPU 108. In this process, the discharge destination of the paper discharged from the copying machine main body is switched depending on whether or not the OHP interleaf mode is set.
[0086]
When an on-edge of the sensor SE17 that detects paper discharge from the copying machine main body is detected (the state change when the signal state changes from off to on, the same shall apply hereinafter) (S7001; YES) When the OHP interleaf mode is set (S7011; YES), the paper discharge destination tray is switched according to the type of discharged paper and the presence / absence of the sort mode setting.
[0087]
For example, when an OHP slip is discharged (S7012; YES) or an OHP sheet is discharged (S7014; YES), the normal tray (non-sort tray) 621 is set as the discharge destination tray. (S7013). Even if the distribution paper is discharged instead of the OHP slip or OHP sheet (S7012; NO, and, S7014; NO), if the sort mode is not set (S7015; NO), non-sorting The tray 621 is set as the discharge destination tray (S7013).
[0088]
On the other hand, when the distribution sheet is discharged (S7012; NO, and, S7014; NO) and the sort mode is set (S7015; YES), the tray (one incremented from the previous sort tray) ( = Tray with sort bin lowered by 1 bin / tray with shift tray shifted) is set as the discharge destination (S7016).
[0089]
As a result of such control, as shown in FIG. 20A, the non-sort tray 621 includes an OHP sheet on which the target document is formed and an OHP interleaving sheet formed by reducing and synthesizing the related document. The corresponding OHP sheet and the OHP interleaving paper are alternately stacked and discharged so as to form a pair. Further, as shown in FIG. 20B, the distribution sheet on which the target document is imaged is discharged to the sort tray group 630 as the set number of copies (required number of copies). The hollow numbers in FIG. 20 are document numbers.
[0090]
2. Second embodiment.
21 to 30 show the control circuit, the outline of the operation procedure, the control procedure, the operation panel, and the OHP sheet / OHP interleaving sheet / distribution sheet of the second embodiment in which the image forming apparatus of the present invention is embodied as a copying machine. An example image is shown. The mechanism of the second embodiment and the configuration of the memory unit 30 are the same as those of the first embodiment, and are not shown.
[0091]
The second embodiment is a simplified version of the apparatus of the first embodiment. That is, in the first embodiment described above, the related image input mode is started by turning on the registration start key 98, and a maximum of four images including the target image registered in the related image input mode are reduced to OHP slip sheets. It is synthesized and imaged. In contrast, in the second embodiment, in the OHP interleaf mode, a maximum of four related images including the target image fixed relative to the target document (the target image and the target image). The next three images) are reduced and synthesized on the OHP interleaving paper. For this reason, in the second embodiment, the related image input mode is unnecessary, and as is clear from the comparison between FIG. 9 and FIG. 30, the registration activation key 98 for starting the related image input mode is not provided.
[0092]
Hereinafter, differences from the first embodiment will be mainly described, and description of the same points as in the first embodiment will be omitted or simplified.
[0093]
As shown in FIGS. 21 to 22, the control unit 100 is configured by using eight CPUs of CPU 101 to CPU 108 in the second embodiment. That is, the control of the scanning system 10 is performed by the second CPU 102 in the first embodiment, whereas in the second embodiment, the third CPU 103 is connected to the second CPU 102 and the scanning system 10 is controlled by the third CPU 103. doing. Therefore, as apparent from the comparison between FIG. 4 and FIG. 29, the scanner CPU M2 for driving the scanner of the scanning system 10 is not connected to the second CPU 102 of the second embodiment. Further, a signal from a sensor provided in the scanning system 10 for detecting the position of the scanner is not input. Further, as apparent from the comparison between FIG. 7 and FIG. 24, in the second embodiment, a scan request is issued from the second CPU 102 to the third CPU 103, and when the scan is finished, the scan is finished from the third CPU 103 to the second CPU 102. A report is issued.
[0094]
As shown in FIG. 23, the configuration and functions of the management table MT1 created in the RAM 126 when image data is read from the image memory 304 and compressed are the same as in the first embodiment. That is, the management table MT1 stores the number indicating the area of the code memory 306, the page number, the number of the connected area, and various additional information necessary for compression / decompression processing such as compression time and copy paper. The code memory 306 is dynamically managed based on these pieces of information. The information in the management table MT1 is erased when the information on the corresponding page is normally ejected to all necessary copies.
[0095]
In the second embodiment, the image of the target document and the three images following the target document image are respectively reduced to ¼ on OHP interleaving paper and synthesized to form an image. The operation in the OHP interleaf mode is controlled by the procedure shown. In the following, description will be made with reference to the flowchart of FIG.
[0096]
If the copy key 92 is detected to be on edge (S602; YES) when the copy operation is not in progress (S601; NO), if the OHP interleaf mode is set (S603; YES), A paper feed port is set (S604), and a reading mode for four pages is set (S605). That is, a process for reducing the target original and the original for three pages following the target original and combining the original on the OHP slip sheet is performed.
[0097]
As described above, after the printing operation on the OHP slip sheet is started in the OHP slip sheet mode (S601; YES, and S606; YES), the printer waits until the printing operation on the OHP slip sheet is completed. When the printing operation on the slip sheet is completed (S607; YES), the OHP sheet feeding port is set (S608), and the reading mode for one page is set (S609). That is, processing for forming the target original on the OHP sheet is performed.
[0098]
After the printing operation on the OHP sheet is started in the OHP interleaving mode as described above (S601; YES, and S606; YES), the process waits until the printing operation on the OHP sheet is completed, and the OHP sheet is transferred to. When the printing operation is completed (S610; YES), the page of the manuscript is changed (S611), and on condition that the manuscript image data is not finished (S612; NO), the OHP interleaf feed port is set (S613). ) The reading mode for 4 pages is set (S614). That is, processing is performed to reduce the number of page-changed originals and the originals for three pages following the target originals and combine them on an OHP slip sheet to form an image.
[0099]
Hereinafter, processing for synthesizing reduced images for four pages starting from the target document and forming them on an OHP slip sheet (S613, S614), and processing for forming the target document on an OHP sheet (S608, S614) S609) is repeated.
[0100]
After repeating the above, the printing operation on the OHP sheet is completed (S610; YES), and when the document is paged (S611), when the document image data is completed (SS612; YES), It is determined whether multi-copy for distribution is set. As a result, when multi-copy is set (S615; YES), the first page of the stored original image is set (S616), the multi-copy paper feed port is set (S617), 2 The reading mode for the page is set (S618). That is, a process for reducing the image of the first page of the stored document image and the image of the next page to 1/2 and creating an image on the distribution sheet is performed. In this example, as shown in FIG. 1, there are two paper supply ports, and one of them stores an OHP sheet. Therefore, the OHP interleaving paper and the distribution paper are supplied from the same paper supply port. In the case of plain paper of the same size, but having a large number of paper feed ports and changing the sizes of the OHP interleaving paper and the distribution paper, the paper feed ports are naturally set differently.
[0101]
After the multi-printing operation on the distribution paper is started in the OHP slip sheet mode as described above (S601; YES, and S606; YES), the system waits until the multi-printing operation on the distribution paper is completed, When the multi-printing operation on the distribution sheet is completed (S619; YES), the original is page-broken by two pages (S620), and the original image data is not finished (S621; NO). Multi-printing is performed.
[0102]
If it is determined in step S615 that multi-printing is not set (S615; NO), or if it is determined in step S621 that the document image data ends (S621; NO), the process proceeds to step S613, and the previous time For the image data stored after the end of the original image data, a process for reducing the target original and the original for three pages following the target original and combining them on the OHP slip sheet is performed.
[0103]
As a result of controlling the operation in the above procedure, as shown in FIG. 28A, the non-sort tray 621 includes an OHP sheet on which the target original is formed, the target original, and the subsequent three originals. The OHP interleaving paper that has been reduced to ¼ and synthesized and formed is ejected in an overlapping manner such that the corresponding OHP sheet and OHP interleaving paper are paired. In the sort tray group 630, as shown in FIG. 28 (b), a distribution sheet in which the target original and the original of the next page are reduced to 1/2 and combined and formed is set as a multi-copy. The number of copies (required) is discharged. The control for switching the discharge destination tray is the same as in the case of the first embodiment (FIG. 19), and the description thereof is omitted. Also, the hollow numbers in FIG. 28 indicate the document numbers as in the case of FIG.
[0104]
The present invention is not limited to the two embodiments described above. For example, a plurality of images related to the target document are designated as relative positions from the target document (... 2 screen before, 1 screen before, the target document, 1 screen after, 2 screen after...) For each original document fed in this way, the original document having the above relative position relationship may be automatically registered as the related original document. Further, in the simplified configuration in which the related image is fixed without providing the related image input mode (= in the case of the second embodiment in which the registration activation key 98 is not provided), the fixed position can be shifted. Also good. That is, it is not fixed as the target document and the subsequent three images, but fixed as four consecutive images, and the start image position (the target document image in the second embodiment) can be shifted back and forth. Good. Further, the user may arbitrarily select the number of images to be output on the OHP slip sheet by a simple operation. Moreover, you may comprise so that a user can select one of said structures by simple operation.
[0105]
In the above embodiment, the related image itself is formed on the OHP interleaf. However, instead of the related image itself or together with the related image itself, the page number of the related image is formed. May be.
[0106]
【The invention's effect】
In the image forming apparatus of the present invention, since a plurality of images related to the image of the OHP sheet are formed on the corresponding OHP interleaving paper, the positioning of the image projected on the screen from the OHP sheet corresponds to the OHP sheet. It can be easily grasped by looking at the image of the OHP slip sheet.
[Brief description of the drawings]
FIG. 1 is a sectional view schematically showing a mechanism of a copying machine according to a first embodiment and a second embodiment of the present invention.
FIG. 2 is a block diagram showing a part of a control circuit of the copier according to the first embodiment.
FIG. 3 is a block diagram showing the rest of the control circuit of the copier of the first embodiment.
FIG. 4 is a block diagram illustrating an image signal processing unit of the copier according to the first embodiment.
FIG. 5 is a block diagram showing a memory unit 30 of the copier according to the first embodiment.
6A is an explanatory diagram of a management table MT1 for the code memory 306 provided in the RAM 126 of the memory unit section 30, and FIG. 6B is an explanatory diagram showing a memory area in the code memory 306. FIG.
FIG. 7 is an explanatory diagram showing an image reading operation sequence of the copying machine according to the first embodiment by sending and receiving a request command and a report between CPUs.
FIG. 8 is an explanatory diagram showing an image forming operation sequence of the copying machine according to the first embodiment by sending and receiving request commands and reports between CPUs.
FIG. 9 is an explanatory diagram of an operation panel OP of the copying machine according to the first embodiment.
FIG. 10 is an explanatory diagram showing a display of a related image input mode on the liquid crystal panel 91 of the operation panel OP.
FIG. 11 is a flowchart showing the processing of the first CPU 101 of the copying machine of the first embodiment.
FIG. 12 is a flowchart showing the processing of the fourth CPU 104 of the copier of the first embodiment.
FIG. 13 is a flowchart showing the processing of the fifth CPU 105 of the copying machine of the first embodiment.
FIG. 14 is a flowchart showing the processing of the sixth CPU 106 of the copier of the first embodiment.
FIG. 15 is a flowchart showing registration key processing executed in step S15 of FIG.
FIG. 16 is a flowchart showing a part of the document registration process executed in step S1521 of FIG.
FIG. 17 is a flowchart showing the remainder of the document registration process executed in step S1521 of FIG.
FIG. 18 is a flowchart showing slip sheet mode reading control executed in step S67 of FIG.
FIG. 19 is a flowchart showing sheet discharge tray switching processing executed by the eighth CPU 108 of the copier of the first embodiment.
20 shows an image example of OHP sheets and OHP interleaving papers discharged to a paper discharge tray (non-sort tray) 621 in the OHP interleaf mode of the copying machine of the first embodiment, and distribution discharged to the sort tray group 630. FIG. FIG. 3 is an explanatory diagram illustrating an example of a sheet image.
FIG. 21 is a block diagram showing a part of a control circuit of a copying machine according to a second embodiment.
FIG. 22 is a block diagram showing the remainder of the control circuit of the copier according to the second embodiment.
FIG. 23 is an explanatory diagram (a) of a management table MT1 for code memory provided in the RAM 126 of the memory unit section 30, and an explanatory diagram (b) showing a memory area in the code memory.
FIG. 24 is an explanatory diagram showing an image reading operation sequence of the copying machine according to the second embodiment by sending and receiving request commands and reports between CPUs.
FIG. 25 is an explanatory diagram illustrating an image forming operation sequence of the copying machine according to the second embodiment by transmitting and receiving a request command and a report between CPUs.
FIG. 26 is a part of a flowchart showing a memory reading procedure and a sheet feeding port setting procedure in the image forming operation sequence of the copying machine according to the second embodiment.
FIG. 27 is a flow chart remainder showing a memory reading procedure and a sheet feeding port setting procedure in the image forming operation sequence of the copying machine of the second embodiment.
FIG. 28 is an image example of an OHP sheet and OHP interleaving paper discharged to a paper discharge tray (non-sort tray) 621 in the OHP interleaf mode of the copying machine of the second embodiment, and distribution discharged to the sort tray group 630. FIG. 3 is an explanatory diagram illustrating an example of a sheet image.
FIG. 29 is a block diagram illustrating an image signal processing unit of a copying machine according to a second embodiment.
FIG. 30 is an explanatory diagram of an operation panel OP of the copying machine according to the second embodiment.
[Explanation of symbols]
500 Automatic document feeder
IR image reader
PRT printer section
20 Image signal processor
30 Memory unit
40 Print processing section
71 Photosensitive drum
600 Re-feed unit (paper output unit)

Claims (6)

A slip sheet mode control means for controlling an image forming operation sequence so that plain paper and an OHP sheet are alternately stacked on the discharge tray when the OHP slip sheet mode is set;
The original image is formed for the OHP sheet, for plain paper so as to form a plurality of original images associated from the corresponding original images for the document image formed on an OHP sheet, Image forming control means for controlling each image forming operation;
An image forming apparatus. A slip sheet mode control means for controlling an image forming operation sequence so that plain paper and an OHP sheet are alternately stacked on the discharge tray when the OHP slip sheet mode is set;
In OHP slip sheet mode, a plurality of document images in the document images associated with imaging target of the original image onto an OHP sheet, respectively designated for imaging target of the original image onto the OHP sheet Related image input means for
Storage means for storing a plurality of document images;
A document image to be imaged on the OHP sheet is formed on the OHP sheet, and a plurality of document images related to the document image to be imaged on the OHP sheet specified by the related image input unit are displayed. An image forming means for reading out from the storage means and forming it on one plain paper corresponding to the OHP sheet ;
An image forming apparatus. In claim 2,
Wherein the plurality of document image designated by the related image input unit is a document image selected from the series of document images preceding and or succeeding the original image formed on an OHP sheet,
Image forming apparatus. In claim 2,
The associated image input means, a plurality of original images associated with the imaging target of the original image onto an OHP sheet, and inputs a relative position in the series of originals for imaging target of the original image onto the OHP sheet Means,
Image forming apparatus. A slip sheet mode control means for controlling an image forming operation sequence so that plain paper and an OHP sheet are alternately stacked on the discharge tray when the OHP slip sheet mode is set;
In OHP interleaf mode, setting means for automatically setting a plurality of document images in the document image group associated with the original image to be formed on an OHP sheet,
Storage means for storing a plurality of document images;
A document image to be formed on the OHP sheet is formed on the OHP sheet, and a plurality of document images related to the document image to be formed on the OHP sheet automatically set by the setting unit are stored in the storage unit Image forming means for reading from the image and forming it on one plain paper corresponding to the OHP sheet ;
An image forming apparatus. In claim 5,
The plurality of document images set by the setting means are a plurality of document images preceding and / or following the document image to be formed on the OHP sheet.
Image forming apparatus.

Images