JP6070051B2 - Image forming apparatus - Google Patents

Description

  The present invention relates to an image forming apparatus that cooperates with an offline post-processing apparatus.

  Conventionally, the recording paper transport path of two apparatuses, an image forming apparatus such as a printer and a post-processing apparatus, is not physically connected. A print job is input to the forming apparatus and printing is performed. Next, the user carries the result printed by the image forming apparatus to the post-processing apparatus, and sets the result in the paper feed port of the post-processing apparatus. Thereafter, a job related to post-processing is input to the post-processing apparatus (for example, from an operation unit of the post-processing apparatus), and post-processing is performed on the aforementioned result. As a result, a final product using two apparatuses is obtained.

  In this process, the user needs to submit the print job and the post-processing job separately to the image forming apparatus and the post-processing apparatus. It takes time and effort to submit jobs to two devices each time. In view of this, a technique has been proposed in which the trouble of submitting a job to two apparatuses is omitted, and both printing and post-processing can be performed by submitting a job to one apparatus.

  For example, when the image forming apparatus and the post-processing apparatus are in an off-line state, an apparatus that can perform both a job related to printing and a job related to post-processing has been proposed (Patent Document 1). reference). Offline is a state in which the recording paper transport paths of the two apparatuses are not physically connected (not connected).

JP 2011-123132 A

  In the method disclosed in Patent Document 1, the image forming apparatus transmits a post-processing job for printed recording paper to the post-processing apparatus. This job includes information related to the printed recording paper (paper size, number of sheets, etc.).

  However, since the job transmitted from the image forming apparatus to the post-processing apparatus does not include information relating to the image data, when performing post-processing that involves image formation, the image data ( In addition to the job including the image data, the image data used for the post-processing (including the job) must be input to the post-processing apparatus. Examples of post-processing that requires image data include post-processing that applies clear toner (transparent toner). When the clear toner is applied to the recording paper on which the color toner image is formed so that the gloss unevenness is eliminated, that is, the image surface is smooth (so that the unevenness due to the color toner is eliminated), the post-processing device In some cases, image data indicating the amount of clear toner applied to each position on the recording paper is required.

  Note that when the image forming apparatus and the post-processing apparatus perform processing in accordance with different instructions, the following drawbacks are listed. When post-processing is performed offline, the output job is transferred to the post-processing device after the print job is completed on the image forming device, and the post-processing device is started. Work efficiency is poor. Also, even if the image forming device outputs a sample, the job is submitted to post-processing only after all printing is completed by the printing device, so post-processing for sample output cannot be performed immediately, and misprinting In some cases, a large amount of recording paper is printed wastefully.

  The present invention is to solve the above-described problem, and transmits a job including image data from an image forming apparatus to an off-line post-processing apparatus that performs post-processing that requires image data. It is an object of the present invention to provide an image forming apparatus that can be used.

  The gist of the present invention for achieving the object lies in the inventions of the following items.

[1] An image forming unit that forms an image on recording paper;
A job generation unit that generates a post-processing job that instructs the offline post-processing apparatus to perform post-processing on the recording paper image-formed by the image forming unit;
A transmission unit that transmits the post-processing job generated by the job generation unit to the offline post-processing device;
With
The job generation unit determines whether image data is necessary to execute the generated post-processing job by the offline post-processing device, and if necessary, the image forming unit outputs the image data to the recording paper. Image data used for image formation or image data used by the image forming unit for image formation on recording paper is processed according to conditions for post-processing by the offline post-processing device. Or a post-processing job including image data corresponding to the result of the determination, and generating a post-processing job not including image data if not necessary.
An image forming apparatus.

  In the above invention, the post-processing job is transmitted to the offline post-processing apparatus. This post-processing job includes image data used in the execution of post-processing. Since image data is included in the post-processing job generated by the image forming apparatus, it is not necessary for the user to separately create and submit a post-processing job including the image data using the post-processing apparatus.

In the above invention, the post-processing job including the image data relating to the image formed on the recording paper by the image forming apparatus is transmitted to the post-processing apparatus , or the image data used by the image forming unit for image formation on the recording paper is Image data processed according to the post-processing conditions in the offline post-processing apparatus is included in the post-processing job. For example, when the post-processing device needs image data indicating the amount of clear toner applied, the image data used for image formation on the recording paper is processed to generate image data indicating the amount of clear toner applied. .

[ 2 ] The image forming apparatus according to [1 ], wherein the job generation unit generates the post-processing job as an interrupt job executed preferentially in the offline post-processing apparatus.

  In the above invention, the post-processing job generated by the image forming apparatus is generated as an interrupt job executed preferentially in the offline post-processing apparatus. As a result, when the post-processing device accepts the post-processing job, if another job is being executed by the post-processing device, the post-processing device interrupts the job being executed and gives priority to the received post-processing job. And run.

[ 3 ] Sample output for temporarily switching the discharge destination of the recording sheet from the first discharge section to the second discharge section while the image forming section continuously forms images on a plurality of recording sheets. With functionality,
The job generation unit generates a post-processing job for the recording paper discharged to the second paper discharge unit separately from a post-processing job for the recording paper discharged to the first paper discharge unit. The image forming apparatus according to [1] or [2] .

  In the above-described invention, the image forming apparatus includes a sample output function that temporarily switches the recording paper discharge destination from the first paper discharge unit to the second paper discharge unit during printing of a large number of sheets. Further, a post-processing job for the recording paper (sample) discharged to the second paper discharge unit is generated separately from the post-processing job for the recording paper discharged to the first paper discharge unit. Since a post-processing job is separately generated for the recording paper (sample) discharged to the second paper discharge unit, it is discharged to the second paper discharge unit during execution of the job discharged to the first paper discharge unit. The post-processing can be performed on the recording paper (sample), and it can be checked whether the printing is correctly performed in the state where the post-processing is performed. For example, every time 100 sheets are printed, the image forming apparatus discharges a sample to the second discharge unit, and transmits a post-processing job for the sample to the offline post-processing apparatus.

[ 4 ] The job generation unit generates a post-processing job for the recording paper discharged to the second paper discharge unit as an interrupt job preferentially executed in the offline post-processing device. The image forming apparatus according to [ 3 ].

  In the above invention, the post-processing job for the recording paper (sample) discharged to the second paper discharge unit is generated as an interrupt job that is preferentially executed in the offline post-processing device. As a result, the post-processing apparatus interrupts the job being executed, and preferentially executes the post-processing job for the received sample.

[ 5 ] When the image forming unit starts or completes image formation relating to one print job, a post-processing job for the recording paper image-formed by the one print job is transmitted to the offline post-processing device. The image forming apparatus according to any one of [1] to [ 4 ], wherein:

  In the above invention, when the image formation relating to a certain print job is started or completed, the post-processing job for the recording paper on which the image is formed by the print job is transmitted to the offline post-processing apparatus.

[ 6 ] The image forming apparatus according to any one of [1] to [ 5 ], wherein the off-line post-processing apparatus is a coater that applies clear toner.

  In the above invention, the post-processing device is a coater for applying clear toner. When applying clear toner on a recording paper on which a colored toner image is formed so that gloss unevenness is eliminated, that is, so that the surface of the image is smooth (no unevenness due to the colored toner), each position on the recording paper Image data indicating the amount of clear toner to be applied is required.

[ 7 ] The image forming apparatus according to any one of [ 1] to [6], wherein the processing is processing for extracting a character area or a photographic area.

  In the above invention, for example, when the area to be coated with the clear toner is only the character area or the photographic area in the image indicated by the image data, the area is extracted from the image data.

  According to the image forming apparatus of the present invention, the trouble of inputting image data to an offline post-processing apparatus can be omitted, and both printing and post-processing can be performed by inputting a job to the image forming apparatus.

1 is an explanatory diagram showing an image forming system according to an embodiment of the present invention. FIG. 1 is an explanatory diagram showing a schematic mechanical configuration of an image forming apparatus according to an embodiment of the present invention. 1 is a block diagram illustrating a schematic configuration of an image forming apparatus according to an embodiment of the present invention. 5 is a flowchart illustrating processing when an image forming apparatus executes a job in conjunction with an offline post-processing apparatus. It is explanatory drawing which shows an example of the data setting screen for printing. It is explanatory drawing which shows an example of an offline post-process setting screen. 6 is a flowchart illustrating processing when the image forming apparatus transmits a post-processing job to the post-processing apparatus. 10 is a flowchart illustrating processing when the image forming apparatus transmits a post-processing job for a sample for misprint detection to the post-processing apparatus. It is a flowchart which shows the process performed with a post-processing apparatus. 10 is a flowchart showing the continuation of the process of FIG. 9.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an image forming system 5 according to an embodiment of the present invention. The image forming system 5 includes an image forming apparatus 10, two post-processing apparatuses 90 </ b> A and 90 </ b> B, and two PC (Personal Computer) terminals 91 connected via a LAN (Local Area Network) 3. . Note that the post-processing device 90A and the post-processing device 90B are collectively referred to as the post-processing device 90.

  The image forming apparatus 10 scans a copy job for optically reading a document and forming (printing) the duplicate image on recording paper, storing image data of the read document as a file, and transmitting the file to an external device. This is a so-called multi-function machine having a function of executing a job such as a print job that forms and outputs an image related to data sent from the PC terminal 91 on a recording sheet.

  The PC terminal 91 plays a role of submitting a print job to the image forming apparatus 10.

  The post-processing device 90 performs post-processing on the printed recording paper. The post-processing device 90 is offline with the image forming apparatus 10. Offline means a state in which the recording paper transport path is not physically connected. Here, although it is offline, the post-processing device 90 is communicably connected to the image forming apparatus 10 via a network. The user carries the recording paper on which the image is formed by the image forming apparatus to the post-processing apparatus 90 and sets it in the paper feeding unit of the post-processing apparatus 90. The post-processing device 90 performs post-processing on the set recording paper. In the present embodiment, the post-processing device 90A is a coater that applies (coats) clear toner to recording paper. The post-processing device 90B cuts the recording paper in addition to saddle stitching and folding, with respect to the recording paper.

  In the post-processing for applying the clear toner performed by the post-processing device 90A, image data for determining the distribution amount of the clear toner to each pixel is required. Since the surface of the recording paper is raised according to the amount of toner in the portion where the toner is fixed in the image forming apparatus 10, the surface of the recording paper after image formation has irregularities corresponding to the image. The application of the clear toner is a post-treatment for making the surface of the recording paper a glossy finish. In order to obtain a more uniform gloss, it is desirable that the surface after the application of the clear toner has no irregularities. Therefore, the amount of clear toner applied to each part of the recording paper is adjusted according to the image (toner image) formed on the recording paper. That is, the amount of clear toner applied at the pixel position where the toner image is present is less than that at the pixel position where the toner image is not present, so that the surface of the recording paper after the clear toner application is made uniform without unevenness. The post-processing performed by the post-processing device 90A requires image data in order to finely control the application amount of the clear toner as described above.

  The image forming apparatus 10 forms an image on a recording sheet based on a print job (for example, a print job received from the PC terminal 91), and performs post-processing on the image-formed recording sheet to the offline post-processing apparatus 90. It has a function of generating a post-processing job to be instructed and transmitting it to the offline post-processing device 90. The post-processing job transmitted to the post-processing device 90A includes image data relating to the application of the clear toner described above.

  FIG. 2 shows a schematic mechanical configuration of the image forming apparatus 10. The image forming apparatus 10 includes a post-processing unit 11, paper discharge ports 12A and 12B, a flow reading type automatic document feeder 13, a document reading slit glass 14, a platen glass 15, a scanner unit 31, and a printer. A section 33, a second paper feed roller 16, a large capacity paper feed tray 17, and a paper feed tray 18 are provided. Note that the paper discharge port 12A and the paper discharge port 12B are collectively referred to as the paper discharge port 12.

  The post-processing unit 11 performs inline post-processing on the printed recording paper. In-line means that a mechanism for performing image forming processing (a printer unit 33 to be described later) and a mechanism for performing post-processing (post-processing unit 11) are physically connected (connected) by a recording paper transport path. State). If it is set to perform inline post-processing, the recording paper after printing is transported to the post-processing unit 11 by the automatic transport device, and post-processing is performed. In the present embodiment, the post-processing unit 11 has a function of bundling a plurality of recording sheets and binding them with staples or making holes with punches.

  The paper discharge port 12 is a portion where printed (or inline post-processed) recording paper is conveyed and discharged by an automatic conveying device.

  The flow reading type automatic document feeder 13 is a place where a document is set when the document is optically read to acquire image data (hereinafter referred to as scanning). The flow reading type automatic document feeder 13 can set a plurality of documents at a time. The set originals are conveyed one by one in order to pass on a later-described original reading slit glass 14, and at that time, an image is read by a later-described scanner unit 31.

  The document reading slit glass 14 is a portion where a document set on the flow reading type automatic document feeder 13 is conveyed and passes. When the original passes through the original reading slit glass 14, the original is irradiated with light, and the reflected light is received to read the original for one line in the width direction. The original passes through the reading portion for one line, and the original image is read by repeatedly reading the original during the passage.

  The platen glass 15 is a place where one original is set when the original is optically read to acquire image data. The set original is scanned by a scanner unit 31 described later.

  The scanner unit 31 sequentially emits a light source for irradiating the original, a line image sensor (CCD 31A, see FIG. 3) for reading the original for one line in the width direction, and the reading position in units of lines in the length direction of the original. The moving unit is configured to include an optical path including a lens and a mirror that guides reflected light from the original to the line image sensor to form an image. The scanner unit 31 conveys a document by the flow reading type automatic document feeder 13 and reads the document while moving the document relative to the document reading slit glass 14 which is a reading position. It can be read while placed on the glass 15.

  The printer unit 33 has a function of forming an image corresponding to image data on a recording sheet. Here, it has a photosensitive drum, a charging device, a laser unit, a developing device, a transfer separation device, a cleaning device, a fixing device, a recording paper transport mechanism used for paper discharge, etc. It is configured as a so-called laser printer that performs image formation. When image formation output (printing) is performed, the image formation target (recording paper) is moved in the sub-scanning direction while repeating image formation for one line in the main scanning direction, so that it is two-dimensionally printed on the recording paper. Images are formed.

  The second paper feed roller 16 is a device that conveys the recording paper set in the paper feed tray 18 or the large capacity paper feed tray 17 to the printer unit 33.

  The paper feed tray 18 is a place for storing and storing a plurality of fed recording papers. There are three paper feed trays 18 of the image forming apparatus 10, and it is possible to set recording papers of different sizes in each. About 500 sheets of recording paper can be set in one place at a time.

  Similar to the paper feed tray 18, the large capacity paper feed tray 17 is a place where a plurality of fed recording papers are set. A large amount of recording paper such as about 3000 sheets can be set at a time.

  FIG. 3 shows a schematic configuration of the image forming apparatus 10. The image forming apparatus 10 includes a print & scanner controller 20 that controls operations related to printing and scanning of the image forming apparatus 10 and a copy apparatus 30 that executes a job.

  An information processing apparatus such as a PC terminal 91 is connected to the print & scanner controller 20 via a network such as a LAN 3. The print & scanner controller 20 has a function of rasterizing print data relating to a print job sent from the PC terminal 91 to generate bitmap format image data (RIP (Raster Image Processor) processing).

  The copying apparatus 30 has a print output function for forming and outputting an image on recording paper based on the image data generated by the print & scanner controller 20.

  The print & scanner controller 20 includes a controller control CPU (Central Processing Unit) 21 that performs overall control of the operation of the print & scanner controller 20, a LAN I / F (Interface) unit 24 that performs a communication function for connection to the LAN 3, DRAM (Dynamic Random Access) having an image memory 23 for storing image data generated by RIP processing, a function for reading / writing data to the image memory 23, a function for transmitting / receiving various data to / from the copy apparatus 30, and the like Memory) control unit 22.

  In addition, the controller control CPU 21 includes a ROM in which programs and fixed data read and executed by the controller control CPU 21 are stored, and a work memory for temporarily storing various data when the controller control CPU 21 executes the programs. Etc. are connected.

  The copy apparatus 30 is configured by connecting a scanner unit 31, an operation display unit 32, and a printer unit 33 to an image control unit 40 that performs overall control of the operation of the copy apparatus 30.

  In addition to the line image sensor (CCD 31A), the scanner unit 31 includes a scanner control unit 31B that controls the entire operation of the scanner unit 31.

  The printer unit 33 includes a laser control unit 33B that controls the operation of the entire printer unit 33, in addition to a laser diode (LD33A) that is turned on / off according to image data. In addition, although not shown, the printer control unit 33B is connected to various units that perform image formation, a recording paper transport mechanism, a motor that operates the second paper feed roller 16, a solenoid, a sensor, and the like.

  The operation display unit 32 functions to display various setting screens and operation screens and receive various setting / selection operations from the user, and display various information and warnings to the user. The operation display unit 32 includes a liquid crystal display (LCD (Liquid Crystal Display) 32B), an operation unit 32C including a touch switch and other switches laid on the screen, and an operation display control for controlling the LCD 32B and the operation unit 32C. 32A.

  The scanner control unit 31B, the operation display control unit 32A, and the printer control unit 33B are configured by circuits each including a CPU, a ROM (Read Only Memory), and a RAM (Random Access Memory), and are stored in the ROM. Various controls are executed according to the program.

  The image control unit 40 performs a function of performing overall control of the operation of the copying apparatus 30, and includes a DRAM control unit 41, an image control CPU 42, a nonvolatile memory 43, a reading processing unit 44, a compression IC (Integrated Circuit) 45, A LAN I / F unit 46, a write processing unit 47, a decompression IC 48, an image memory 50 composed of a semiconductor memory, and the like are provided.

  The reading processing unit 44 has a function of performing enlargement processing, mirror image processing, error diffusion processing, and the like on the image data output from the scanner unit 31. The compression IC 45 compresses the image data, and the decompression IC 48 functions to decompress the compressed image data (compressed image data) to the original image data.

  The image memory 50 is used as a page memory 52 capable of storing uncompressed image data in units of pages, a compression memory 51 storing compressed image data, and the like.

  The writing processing unit 47 functions to output a signal for turning on / off the laser diode of the laser unit in accordance with the operation of the printer unit 33 in accordance with the image data read out from the compression memory 51 and expanded. .

  The DRAM control unit 41 controls read / write and refresh timings to the image memory 50 composed of a dynamic RAM, compresses image data and stores it in the compression memory 51, and reads compressed image data from the compression memory 51 and decompresses it. Control the timing when you do. The DRAM control unit 41 is connected to the DRAM control unit 22 of the print & scanner controller 20 through a PCI (Peripheral Component Interconnect) bus 54, and exchanges various data with the print & scanner controller 20 through the PCI bus 54. Fulfills the function.

  The image control CPU 42 functions to control the entire operation of the copy apparatus 30. The image control CPU 42 is configured by a circuit having a CPU, a ROM, and a RAM as main parts, and executes various controls according to a program stored in the ROM. The ROM stores programs, various fixed data, and the like, and the CPU operates according to the programs stored in the ROM. The RAM is used as a work memory that temporarily stores various data when the CPU executes a program.

  The non-volatile memory 43 is a memory that stores user data and system data that should be stored even after the power is turned off, a predetermined value described later, and the like.

  The LAN I / F unit 46 performs a communication function for connecting to the LAN 3 separately from the LAN I / F unit 24.

  Next, referring to FIG. 4, the flow of processing when the image forming apparatus 10 starts printing and transmits post-processing jobs to the post-processing apparatuses 90A and 90B in the image forming system 5 will be described.

  First, the image forming apparatus 10 displays the print data setting screen 60 (see FIG. 5) on the operation display unit 32 (step S101). FIG. 5 shows an example of the print data setting screen 60 displayed on the LCD 32B.

  The user can make settings related to printing, post-processing, and the like on the print data setting screen 60. For example, it is possible to set the density of image quality, switching between single-sided / double-sided printing, and whether to perform inline post-processing. When performing settings related to offline post-processing, the offline post-processing setting button 62 is pressed, the screen is changed to the offline post-processing setting screen 70 (see FIG. 6), and the offline post-processing is performed on the screen after the transition. Perform settings related to.

  Returning to FIG. 4, the description will be continued. When the offline post-processing setting is performed (step S102; Yes), that is, when the offline post-processing setting button 62 is pressed, the screen is changed to the offline post-processing setting screen 70 (see FIG. 6). A post-processing setting process is performed (step S103), and the process returns to step S102 to continue the process.

  FIG. 6 shows an example of the offline post-processing setting screen 70. The user can perform offline post-processing settings on the offline post-processing setting screen 70. The user presses a setting button for each setting item on the offline post-processing setting screen 70 to perform detailed settings related to offline post-processing.

  An offline post-processing setting item 73 in the figure is an item for setting whether to perform offline post-processing. When the user wants to perform post-processing after offline, the user presses the “Use” setting button.

  The offline post-processing interrupt processing item 74 in the figure is an item for setting the timing at which post-processing devices 90A and 90B start post-processing when offline post-processing is performed.

  When “execute (at start of printing)” is set, when printing is started in the image forming apparatus 10, a post-processing job is transmitted to start offline post-processing. When “execute (when printing is completed)” is set, when printing is completed in the image forming apparatus 10, a post-processing job is transmitted to the post-processing apparatus to start offline post-processing.

  If “execute (at start of printing)” or “execute (when print is completed)” is set, the post-processing device 90 (A, B) at the specified time (at the start of printing or at the completion of printing). If another job is being executed, the job is temporarily suspended, and the post-processing job transmitted by the image forming apparatus 10 is preferentially executed (as an interrupt job). When “not executed” is set, the post-processing job transmitted by the image forming apparatus 10 is executed after all the jobs being executed (or waiting) in the post-processing device 90 (A, B) are completed.

  The post-execution processing selection setting item 75 is an item for selecting the type of offline post-processing to be executed and setting the details thereof. In the drawing, in addition to whether or not to perform three types of post-processing of “saddle stitching”, “clear toner application”, and “year-end”, it is possible to make detailed settings for the processing contents. For example, in the “clear toner application” post-processing, the clear toner application range can be selected from “entire surface”, “only image portion (non-character portion)”, and “character portion only”.

  The offline post-processing item 76 at the time of sample discharge sets whether or not to perform post-processing on the sample discharge when the image forming apparatus 10 discharges the sample. In the sample discharge, the recording paper discharge destination is temporarily transferred from the discharge outlet 12 that has been discharged to another discharge outlet 12 while images are continuously formed on a plurality of recording sheets. The sample is discharged after switching. In the embodiment, the paper discharge destination is temporarily switched to the paper discharge outlet 12B while the paper is being continuously discharged to the paper discharge outlet 12A.

  When the post-processing at the time of sample discharge is set to “execute”, the recording discharged to the discharge port 12B separately from the post-processing job for the recording paper discharged to the discharge port 12A at the time of sample discharge. A post-processing job for the paper (sample post-processing job) is generated and transmitted to the post-processing device 90. Note that the sample post-processing job is a so-called interrupt job in which the job that is being performed by the post-processing device 90 at that time is interrupted and processing is preferentially performed. Interruption by the sample post-processing job is performed even if the job being processed by the post-processing device 90 at that time is a post-processing job that has already been executed by interrupting another job.

  When the setting of each item is completed, the user presses the OK button 71. When the client terminal 91 accepts pressing of the OK button 71, the client terminal 91 confirms the setting and returns the screen to the print data setting screen 60. If the user presses the cancel button 72 instead of the OK button 71, the setting of each item is returned to the default state, and the screen is changed to the print data setting screen 60. In the default state, offline post-processing is set not to be performed.

  Returning to FIG. 4, the description will be continued. When the offline post-processing setting is not performed (step S102; No), the process proceeds to step S104. If the print job is not started (step S104; No), the process returns to step S102 and continues.

  If the job start button 61 is pressed, that is, if a print job is started (step S104; Yes), the process proceeds to step S105. In step S105, the page counter is set to “1”.

  The subsequent steps S106 to S112 are a flow of processing performed by the image forming apparatus 10 during execution of the print job. First, offline post-processing instruction processing is performed (step S106). In the offline post-processing instruction process, a post-processing job is transmitted to the post-processing device 90 according to the offline post-processing setting set in step S103. Details of the offline post-processing instruction processing will be described later.

  Next, if page counter> scheduled number of prints (total number of pages) is not satisfied (step S107; No), the process proceeds to step S108.

  If it is set not to perform sample discharge, or if it is set to execute sample discharge but it is not the timing for sample discharge (step S108; No), the page corresponding to the current page counter For example, if the page counter is 1, the first page is output (step S111), then the page counter is incremented by 1 (step S112), and the process returns to step S106 to continue the processing. Note that the timing at which the sample is discharged is set in advance. For example, every time 500 sheets are printed, one sample is discharged.

  If it is set to execute sample discharge and the timing of sample discharge is set (step S108; Yes), sample discharge is performed (step S109), and an offline post-processing instruction corresponding to sample discharge is performed. Processing is performed (step S110), and the process proceeds to step S111.

  In the offline post-processing instruction processing corresponding to the sample discharge, the offline post-processing setting set in step S103 (specifically, the setting of the offline post-processing setting item 76 for sample discharge (see FIG. 6)). Then, a post-processing job (sample post-processing job) for the sample is transmitted to the post-processing device 90. Details of the off-line post-processing instruction processing corresponding to sample discharge will be described later.

  The flow from step S106 to step S112 is repeated, and when page counter> scheduled number of prints (total number of pages) is satisfied (step S107; Yes), the process ends. Note that step S113 is processing performed by the post-processing device 90 in accordance with the offline post-processing instruction in step S106 and the offline post-processing instruction corresponding to the sample discharge in step S110. The process of step S113 will be described later.

  FIG. 7 shows the detailed processing flow of step S106 (offline post-processing instruction processing) in FIG. In FIG. 7, the page counter is abbreviated as PGC.

  First, in step S103 of FIG. 4, when it is not set to perform offline post-processing (step S201; No), the processing is terminated. If it is set to perform offline post-processing (step S201; Yes), the process proceeds to step S202.

  If the page counter is 1 and no interruption is performed (step S202; Yes), the process proceeds to step S205. Here, the case of proceeding to step S205 refers to the case where “not implemented” is set in the offline post-processing interrupt processing item 74 (see FIG. 6) at the time of printing the first page.

  When the page counter is other than 1 or when an interrupt is performed (step S202; No), it is checked whether the page counter is 1 and whether the interrupt is performed when printing is started (step S203). If the page counter is 1 and an interruption is performed at the start of printing (step S203; Yes), the process proceeds to step S205. Here, the case where the process proceeds to step S205 is when the first page is printed, and when “executed, when printing starts” is set in the offline post-processing interrupt processing item 74 (see FIG. 6). Refers to that.

  When the page counter is other than 1 or when the interruption is performed when the printing is completed (step S203; No), it is checked whether or not the interruption is performed when the page counter indicates the last page (step S203; No). Step S204).

  If the page counter indicates the last page and if an interrupt is to be performed when printing is complete (step S204; Yes), the process proceeds to step S205. Here, the case where the process proceeds to step S205 is a case where the last page is printed, and is set to “executed, when printing is completed” in the offline post-processing interrupt processing item 74 (see FIG. 6). Refers to that.

  If the page counter indicates a page other than the last page, or if no interruption is performed when printing is completed (step S204; No), the process ends.

  In step S205, the offline post-processing device 90 that performs post-processing on the result of the print job started in step S104 in FIG. 4 is specified from the offline post-processing settings set in step S103 in FIG.

  For example, when saddle stitching or cutting is set, the post-processing device 90B is processed, and when clear toner application is set, the post-processing device 90A is processed with respect to the result of the print job. The offline post-processing device 90 to be performed is specified. A plurality of post-processing devices 90 may be used. The specified number is M. When specified, numbers 1 to M are assigned to the respective post-processing devices 90.

  Thereafter, in step S206 to step S216, a post-processing job is created and transmitted to each of the M post-processing devices 90 specified in step S205. First, in step S206, the post-processing device counter is set to 0 (N = 0).

  The post-processing device counter is incremented by 1 (N + 1) (step S207). Next, if the post-processing device counter (N) is not the same as the number (M units) of the post-processing devices 90 specified in step S205, that is, if N ≠ M (step S208; No), it is allocated in S205. The post-processing job to be transmitted to the post-processing device 90 (hereinafter referred to as the Nth post-processing device 90) with the number = N is created (step S209).

  If it is set in step S103 in FIG. 4 to execute an offline post-processing interrupt, that is, “execute, at the start of printing” or “execute” in the offline post-processing interrupt processing item 74 (see FIG. 6). When “when printing is completed” is set (step S210; Yes), the interrupt mode is set in the post-processing job created in step S209 (step S211), and the process proceeds to step S212. If not set (step S210; No), the process proceeds to step S212. The job for which the interrupt mode is set is processed as an interrupt job in the post-processing device 90 with priority over jobs other than the interrupt job.

  If image data is necessary for the post-processing performed by the N-th post-processing device 90 (step S212; Yes), the image data is added to the post-processing job created in step S208 (step S213), and the process proceeds to step S214. The image data added here is image data used for image formation on a recording sheet in the print job started in step S104 in FIG. When there are a plurality of image data used for image formation on recording paper in a print job (for example, when 100 copies of one document are printed with 20 sheets), the plurality of image data are added. If no image data is required (step S212; No), the process proceeds to step S216.

  If the image data added in step S213 needs to be processed (step S214; Yes), the image data is processed (step S215), and the process proceeds to step S216. For example, when applying clear toner, the image data used for image formation on the recording paper is processed (converted) into image data indicating the amount of clear toner applied. In addition, when the range where the clear toner is applied is set to “only the image portion” or “only the character portion”, a process of extracting the character region or the photo region is performed. When there are a plurality of image data, each image data is processed. If processing is not necessary (step S214; No), the process proceeds to step S216.

  In step S216, the post-processing job is transmitted to the Nth post-processing device 90. The N-th post-processing device 90 that has received the post-processing job executes post-processing according to the post-processing job. Then, it returns to step S207 and continues a process.

  Thereafter, when N = M (step S208; Yes), the process is terminated.

  FIG. 8 shows the detailed processing flow of step S110 (offline post-processing instruction processing for sample discharge) in FIG.

  First, in step S103 of FIG. 4, when it is not set to perform offline post-processing (step S301; No), the processing is terminated. If it is set to perform offline post-processing (step S301; Yes), the process proceeds to step S302.

  If it is not set in step S103 in FIG. 4 to perform offline post-processing for sample discharge (step S302; No), the processing ends. If it is set to perform offline post-processing for sample discharge (step S302; Yes), the offline post-processing setting that has been set is changed to the result of the print job started in step S104 in FIG. On the other hand, the post-processing device 90 performing post-processing is specified (step S303). The specified number is M. When specified, numbers 1 to M are assigned to the respective post-processing devices 90.

  Thereafter, in steps S304 to S315, an offline post-processing job (sample post-processing job) corresponding to sample discharge is transmitted to the post-processing device 90 specified in step S304. First, in step S304, the post-processing device counter is set to 0 (N = 0).

  The post-processing device counter is incremented by 1 (N + 1) (step S305), and then the post-processing device counter (N) is not the same as the number (M) of the post-processing devices 90 specified in step S303. If ≠ M (step S306; No), a post-processing job (sample post-processing job) related to the post-processing performed by the Nth post-processing device 90 on the sample is created (step S307). Thereafter, an interrupt mode is set for the sample post-processing job (step S308).

  If image data is necessary for the post-processing performed by the N-th post-processing device 90 on the sample (step S309; Yes), the process proceeds to step S310. If no image data is required (step S309; No), the process proceeds to step S315.

  The image data used when forming an image by discharging the sample is the same as the image data used in the printing started in step S104 in FIG. 4, and dedicated image data for misprint detection (so-called image data) , Test chart).

  When the image data used when forming an image by sample discharge is the same as the image data used in the printing started in step S104 in FIG. 4 (step S310; Yes), the sample post-processing job is The same image data as the image data set in step S212 of FIG. 7 is added (step S311), and the process proceeds to step S313. If they are different (step S310; No), dedicated image data used in the sample post-processing is added to the sample post-processing job (step S312), and the process proceeds to step S313. Note that, in both step S311 and step S312, the same image data as that used when forming an image by sample discharge is added to the sample post-processing job.

  If the image data set in step S311 or step S312 needs to be processed (step S313; Yes), the image data is processed (step S314), and the process proceeds to step S315. If processing is not necessary (step S313; No), the process proceeds to step S315. Refer to step S214 and step S215 of FIG. 7 for the content of processing.

  In step S315, the sample post-processing job is transmitted to the Nth post-processing device 90. The N-th post-processing device 90 that has received this sample post-processing job executes post-processing according to the sample post-processing job. Then, it returns to step S305 and continues processing.

  Thereafter, when the post-processing device counter increases and N = M (step S306; Yes), the processing ends.

  9 and 10 show the detailed processing flow of step S113 in FIG. 4 (processing performed by the post-processing device 90). In the figure, the image forming apparatus 10 is abbreviated as MFP.

  First, when a new job is input from the image forming apparatus 10 (step S401; Yes), the process proceeds to step S403. If not (Step S401; No), the process proceeds to Step S402.

  Next, when a new job is input from the operation panel provided in the post-processing device 90 (step S402; Yes), the process proceeds to step S403. If not (Step S402; No), the process proceeds to Step S406.

  In step S403, it is checked whether or not the input new job is designated as the interrupt mode. If the interrupt mode is designated (step S403; Yes), the job is added to the interrupt job list (step S405), and the process returns to step S401. If the interrupt mode is not designated (step S403; Yes), the job is added to the execution job list (step S404), and the process returns to step S401.

  The post-processing device 90 according to the present embodiment registers the input job in one of the three job lists and determines the order of execution. The three job lists are an executing job list, an executing job list, and an interrupt job list. A job being executed is registered in the job list being executed. Jobs waiting for execution for which the interrupt mode is not set are registered in the execution job list and moved to the job execution list when executed. In the interrupt job list, jobs waiting to be executed with the interrupt mode set are registered. The job registered in the interrupt job list is transferred to the executing job list in preference to the job registered in the execution job list. Thus, the post-processing device 90 controls the job execution order.

  In step 406, it is checked whether there is a job being processed. If there is no job being processed (step S406; No), it is checked whether there is a job in the interrupt job list (step S407). If there is a job in the interrupt job list (step S407; Yes), the top job in the interrupt list is set in the job list being executed (step S408), and the process proceeds to step S415 in FIG.

  If there is no job in the interrupt job list (step S407; No) and there is a job in the execution job list (step S409; Yes), the first job in the execution job list is set in the active job list (step S410). ), The process proceeds to step S415 in FIG. If there is no job in the execution job list (step S409; No), the process returns to step S401.

  If there is a job being processed in step S406 (step S406; Yes), it is checked whether there is a job registered in the interrupt job list (step S411). If there is no job registered in the interrupt job list (step S411; No), the process proceeds to step S415 in FIG.

  If there is a job registered in the interrupt job list (step S411; Yes), it is checked whether the job being processed is a job (interrupt job) for which the interrupt mode is set (step S412).

  If it is not an interrupt job (step S412; No), the process proceeds to step S414. If it is an interrupt job (step S412; Yes), it is checked whether or not the job registered at the top of the interrupt job list is a sample post-processing job, that is, a post-processing job corresponding to sample discharge (step S412; Yes). Step S413).

  If it is not a sample post-processing job (step S413; No), the process proceeds to step S415 in FIG. If it is a sample post-processing job (step S413; Yes), the job being executed is interrupted, the first job in the interrupt job list is set as the job being executed (step S414), and step S415 in FIG. 10 is executed. Proceed to If the interrupted job is not an interrupt job, a job having a content for executing the remaining portion of the interrupted job is registered at the top of the execution job list. If the interrupted job is an interrupt job, a job having a content for executing the remaining part of the interrupted job is registered at the top of the interrupt job list.

  In step S415 in FIG. 10, the processing of the job registered in the executing job list is advanced (continued). Until the processing of the job being executed is completed (step S416; No), the processing returns to step S401 in FIG. 9 to continue the processing. When the processing of the job being executed is completed (step S416; Yes), the job in the job list being executed is deleted, a new job is set in the job list being executed (step S417), and the process returns to step S401 in FIG. Continue processing.

  The process of FIG. 9 is continuously performed until the power of the post-processing device 90 is turned off.

  As described above, when the offline post-processing device 90 performs post-processing that requires image data like clear toner application, the image forming apparatus 10 of the present invention transmits the image data together with the job related to the post-processing. This saves the user from having to send image data to both the post-processing apparatus 90 and the image forming apparatus 10.

  The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to that shown in the embodiment, and there are changes and additions within the scope of the present invention. Are also included in the present invention.

  In the embodiment of the present invention, the print & scanner controller 20 and the copy apparatus 30 are incorporated in the image forming apparatus 10, but the print & scanner controller 20 and the copy apparatus 30 may be provided separately. Good. In this case, data transmission / reception between the print & scanner controller 20 and the copy apparatus 30 is performed by an interface suitable for the data transmission / reception.

  In the embodiment of the present invention, image data used for image formation by the image forming apparatus 10 or image data related to the image data (extracted image data, etc.) is added to the post-processing job. The image data added to the processing job is not limited to this.

  In the embodiment of the present invention, the post-processing device (post-processing device 90A) that uses image data is a coater that applies clear toner, but the post-processing device that uses image data is not limited to this. Any post-processing device that uses image data may be used.

3 ... LAN
DESCRIPTION OF SYMBOLS 5 ... Image forming system 10 ... Image forming apparatus 11 ... Post-processing part 12 (A, B) ... Paper discharge port 13 ... Flow-reading type automatic document feeder 14 ... Slit glass for original reading 15 ... Platen glass 16 ... Second Paper feed roller 17 ... Large capacity paper feed tray 18 ... Paper feed tray 20 ... Print & scanner controller 21 ... Controller control CPU
22 ... DRAM control unit 23 ... Image memory 24 ... LAN I / F unit 30 ... Copying device 31 ... Scanner unit 31A ... CCD
31B ... Scanner control unit 32 ... Operation display unit 32A ... Operation display control unit 32B ... LCD
32C ... Operation unit 33 ... Printer unit 33A ... LD
33B ... Printer control unit 40 ... Image control unit 41 ... DRAM control unit 42 ... Image control CPU
43 ... Nonvolatile memory 44 ... Read processing unit 45 ... Compression IC
46 ... LAN I / F unit 47 ... Write processing unit 48 ... Expansion IC
DESCRIPTION OF SYMBOLS 50 ... Image memory 51 ... Compression memory 52 ... Page memory 54 ... PCI bus 60 ... Print data setting screen 61 ... Job start button 62 ... Offline post-processing setting button 70 ... Offline post-processing setting screen 71 ... OK button 72 ... Cancel button 73 ... Offline post-processing setting item 74 ... Offline post-processing interrupt processing item 75 ... Execution post-processing selection setting item 76 ... Offline post-processing item during sample discharge 90 (A, B) ... Post-processing device 91 ... PC terminal

Claims (7)

An image forming unit for forming an image on recording paper;
A job generation unit that generates a post-processing job that instructs the offline post-processing apparatus to perform post-processing on the recording paper image-formed by the image forming unit;
A transmission unit that transmits the post-processing job generated by the job generation unit to the offline post-processing device;
With
The job generation unit determines whether image data is necessary to execute the generated post-processing job by the offline post-processing device, and if necessary, the image forming unit outputs the image data to the recording paper. Image data used for image formation or image data used by the image forming unit for image formation on recording paper is processed according to conditions for post-processing by the offline post-processing device. Or a post-processing job including image data corresponding to the result of the determination, and generating a post-processing job not including image data if not necessary.
An image forming apparatus. The image forming apparatus according to claim 1, wherein the job generation unit generates the post-processing job as an interrupt job that is preferentially executed in the offline post-processing apparatus. A sample output function for temporarily switching the discharge destination of the recording sheet from the first discharge section to the second discharge section while the image forming section continuously forms images on a plurality of recording sheets; ,
The job generation unit generates a post-processing job for the recording paper discharged to the second paper discharge unit separately from a post-processing job for the recording paper discharged to the first paper discharge unit. the image forming apparatus according to claim 1 or 2. The job generation unit generates a post-processing job for the recording paper discharged to the second paper discharge unit as an interrupt job that is preferentially executed in the offline post-processing device. The image forming apparatus according to 3 . When the image forming unit starts or completes image formation related to one print job, a post-processing job for the recording paper image-formed by the one print job is transmitted to the offline post-processing device. the image forming apparatus according to any one of claims 1 to 4, characterized. The off-line post-processing apparatus, an image forming apparatus according to any one of claims 1 to 5, characterized in that a coater for applying a clear toner. The processing, image forming apparatus according to any one of claims 1 to 6, characterized in that a processing for extracting a character area or a photograph area.