JP4275562B2 - Image forming apparatus and control program - Google Patents

Description

  The present invention causes an image forming apparatus such as a digital copying machine having a copy function, a facsimile, or a composite apparatus, and a jam or the like when a plurality of originals are automatically fed and read by the image forming apparatus. It relates to a control program when there is an interruption.

  In the prior art, as a recovery method when a jam occurs when a series of originals are scanned and copied using a copying machine having an automatic document feeder, the document has already been scanned based on the number of documents conveyed and the number of printed paper discharged. There is an instruction to return a certain number of original pages to the original setting position, and the remaining originals are set according to this instruction, and then restarted (see, for example, Patent Document 1).

  According to another conventional technique, when a jam occurs while a series of originals are being read by a digital copying machine, the series of originals are set again based on the number of pages of image data that has already been read, and the reading is completed. The original corresponding to the original that has been read only halfway due to the occurrence of a jam is erased, the original that has not been read is read, and the entire series is read. Image data corresponding to the page has been obtained (see, for example, Patent Document 2 and Prior Art of Patent Document 3).

In another conventional technique, when a jam occurs in the document feeder while reading a document, the last read document is displayed and this image is erased according to the state of the image. Yes (see, for example, Patent Document 4). Here, there is no description regarding processing of image data being read.
Japanese Patent Laid-Open No. 2-66586 JP-A-4-248761 JP 2000-89617 A JP-A-9-46490

  However, the technique of Patent Document 1 is a technique related to an analog copying machine that forms a latent image on a photoconductor using light reflected by exposing a document, and transfers the latent image to a sheet as a toner image. Since the discharge of the paper onto which the toner image has been transferred corresponds in real time, it is possible to calculate the number of pages to return the original from the read and discharged paper. Or, since all the originals are read and stored as image data, this image data is printed. Therefore, when the technique of Patent Document 1 is used, even if it is already read as image data, it is read again. It is useless.

  In addition, the techniques described in Patent Document 2 and Patent Document 3 are digital copying machines, and the original image data that has already been read is used effectively, and the original is reset and recovered without any consideration. On the other hand, even when a jam occurs at the end of a large number of documents, it takes time to reset the document from the beginning, and to feed and scan it. Furthermore, I was worried that the originals before and after the jam were copied without missing.

  The technique described in Patent Document 4 is a technique that solves the above-described problem. However, in this technique, the document read at the end is usually read normally, and a wasteful work is imposed on the user. ing.

  According to the present invention, when a jam occurs in an automatic document reading apparatus, even if the image data is less than one page being read, the image can be read by storing the image data without erasing and printing the image data. The purpose is to inform the user of the missing page.

In order to achieve the above object, a first image forming apparatus of the present invention is an image forming apparatus that executes a print job for obtaining a printed material corresponding to a series of documents.
The operation display means for setting the print job conditions and instructing execution, and the series of documents set on the document stacking means are fed one by one in accordance with the condition settings, and sequentially conveyed to the document reading position. Document feeding / conveying means, document reading means for reading a document at the reading position in accordance with the condition setting, image storage means for sequentially storing image data of the read document in page units in accordance with the condition setting, and the image storage means A printing control unit that prints a plurality of pieces of image data stored in accordance with the condition setting, and when there is a cause for interrupting conveyance when the document feeding and conveying unit conveys the series of documents, An incomplete image stored in the image storage means without erasing incomplete image data of less than one page corresponding to a document page being read Data storage control means, printing data generation means for generating printing data from image data stored in the image storage means, and storage in the image storage means if the incomplete image data exceeds a predetermined capacity wherein the incomplete image printing control means for printing only the printing data created by the print data generation means, when the incomplete image data is less than the predetermined capacity, or stored incomplete be based on the incomplete image data Last image print control means for printing only the print data generated by the print data generation means based on the image data of the document that has been correctly read last when there is no image data , and the series interrupting the conveyance of the document is a result, as to interrupt the printing of the image data that has not yet been printed, in accordance with the storage status of said image storage means, Serial or image printing control lines of stomach, print resumption is instructed, among the image data stored in the image storage unit before printing job resuming, starts yet printed of not not image data after printing It is characterized by that.

According to a second image forming apparatus of the present invention, in the first image forming apparatus, a message for prompting an operator to set all of the series of documents on the document stacking unit and instruct to resume printing is provided. When the recovery display means to be displayed on the operation display means and the resumption of printing are instructed, the image data of the document read after the page corresponding to the incomplete image is one page than the page corresponding to the incomplete image. A recovery control unit that executes the print job in accordance with the condition setting is provided as the image data following the previously read document image data.

According to a third image forming apparatus of the present invention, in the first image forming apparatus, a message for prompting an operator to set all of the series of documents on the document stacking unit and instruct to resume printing is provided. When the recovery display means displayed on the operation display means and the resumption of printing are instructed, the image data of the original read one page after the page corresponding to the last image printed by the last image printing control means The image forming apparatus includes a recovery control unit that executes the print job in accordance with the condition setting, following the image data of the last read original.

According to a fourth image forming apparatus of the present invention, in any one of the first to third image forming apparatuses, the incomplete image print control unit or the last image print control unit selects a print product to be printed by itself. It is characterized in that it is discharged in a distinguishable manner from the printed matter printed before or after the printing.

The control program of the present invention includes an operation display means for setting a print job condition for obtaining a printed matter corresponding to a series of originals and an instruction for execution, and one series of the originals set on the original stacking means. A document feeding / conveying unit that sequentially feeds the document to the document reading position, a document reading unit that reads the document at the reading position in accordance with the condition setting, and sequentially reads image data of the read document in page units in accordance with the condition setting. A computer for controlling an image forming apparatus having an image storage means for storing, a print control means for printing a plurality of image data stored in the image storage means in accordance with the condition setting, and the document feeding and conveying means. If there is a cause for interrupting transport while transporting a series of documents, the page corresponding to the document page being read Incomplete image data storage control means for storing incomplete image data in the image storage means without erasing, and print data generation means for generating print data from the image data stored in the image storage means When the long incomplete image data of a predetermined volume or more, the image imperfect image printing control for printing only the printing data created by the print data generation means on the basis of incomplete image data stored in the storage means And when the incomplete image data is not equal to or larger than a predetermined capacity or there is no incomplete image data to be stored, the print data generation unit generates the print data based on the last read image data of the document. and only the print data to function as the last image print control means for printing, conveyance of the set of original is interrupted Then, still mark With interrupting the print image data that are not, in response to said storage state of the image storing means, the one image printing control lines of stomach and print resumption is instructed, the print job resumed before the image storage Printing of image data not yet printed out of the image data stored in the means is started .

  For example, in the conventional technique described in Patent Document 2, incomplete image data when a jam of less than one page occurs is deleted and discarded. In the prior art described in Patent Documents 3 and 4, when a jam occurs in the document conveying device, the image data read last can be displayed and used for recovery or as image data. Whether or not. However, in this case as well, unlike the present invention, an incomplete image of less than one page is not used, but the image of the document read last is simply displayed among those stored as image data. It ’s just that. This method of use is sufficient for a reading method in which reading and scanning is performed with the document stopped on the platen. However, in a recent sheet-through type document conveying device or the like, if a jam occurs, In many cases, one original is being read while moving, and an image that is less than one page is not considered to be used as image data from the beginning.

  Therefore, when the first image forming apparatus of the present invention is used, an incomplete image of a page in the middle of reading a document that has been erased and discarded in the past when a cause such as a jam of the document interrupts document conveyance occurs. Since data can be saved and print data can be generated from the image data, information for notifying the operator of the original document that actually caused the interruption can be obtained.

Further, since the printing data corresponding to the original that was being read at the time of the interruption is printed, it is possible to visually notify the operator of the original that actually caused the interruption. Further, it is useful for confirming the paper quality of a document that is easily jammed when a document composed of a plurality of types of paper is set.

In addition, if there is no incomplete image data, or if there is only enough capacity to determine which page of the manuscript is compatible even if there is incomplete image data, it was read correctly last instead of the incomplete image. Since the printing data corresponding to the document is printed, it is possible to indirectly notify the operator of the document that actually caused the interruption . Of et al., Also stand in the role of the order to check the paper quality of the jam easy to document when you set a document consisting of a plurality of types of paper.

According to the second image forming apparatus, after printing by the recovery operation is completed, if a page near the original corresponding to the printed incomplete image is viewed, it is confirmed whether the page is missing or duplicated. This can eliminate the user's anxiety.

According to the third image forming apparatus, as in the case of the second image forming apparatus, if a page near the original corresponding to the last image printed is viewed, whether pages are missing or duplicated are not output. Can be confirmed and the user's anxiety can be resolved.

According to the fourth image forming apparatus, the printed material corresponding to the image of the original read after the printed image corresponding to the original image read before the interruption of the conveyance of the series of originals or after the instruction to resume the printing is obtained. Since the paper on which the incomplete image or the last image is printed is interrupted before it can be identified, it can be confirmed more quickly whether the page is missing or duplicated. In particular, as a form that can be identified, if a sheet of the printed matter relating to the interruption is the same size and a sheet having a different transport direction is used, it becomes like a partition sheet and is easy to identify.

  According to the control program of the present invention, in the past, incomplete image data of a page in the middle of reading a document that has been erased and discarded when a cause of interrupting document conveyance such as a document jam occurs, Since printing data can be generated from the image data, information for notifying the operator of the original document that actually caused the interruption can be obtained.

  A composite apparatus as an image forming apparatus employing the present invention will be described with reference to the schematic diagram of FIG. In the figure, this multifunction device 1 is a multifunction device having functions of a copy, a printer, a facsimile, and a scanner. A CPU (Central Processing Unit) 2, a ROM (Read Only Memory) 3, a RAM (Random Access Memory) 4 , Mail creation means 5, printer controller 6, printer unit 7, post-processing device I / F (post-processing device interface) 8, post-processing device 9, operation panel 10, scanner I / F (scanner interface) 11 , Scanner section 12, automatic document feeder 13, image storage means 14, bitmap memory 15, CODEC (coder / decoder) 16, modem 17, NCU (network controller) 18, public line 19, network I / F (network・ Interface) 20, bus 21, document stacking tray 27, etc. That. The composite apparatus 1 is connected to a PC (Personal Computer) (24, 25) and a printer 23 via a network cable 22.

  The mail creating means 5 is used in the network scanner function, and is a means for creating an e-mail when the image data read by the scanner unit 12 is attached to an e-mail and transmitted to a destination registered in advance.

  The printer controller 6 analyzes the print command (PDL) and job information transmitted from the connected personal computer and stored in the reception area of the image storage means 14, and generates intermediate language information. This intermediate language information is stored in an intermediate language information storage area of the image storage means 14.

  The printer unit 7 sequentially sends the image data developed in the bitmap memory 15 to an optical device for writing a latent image such as LSU (laser scanning unit) or LPH of the image forming unit of the printer unit 7, and A toner image is formed in the image portion, which is sequentially transferred from a paper feed cassette to a paper that is fed and transported, and is fixed and discharged.

  The post-processing device I / F 8 and the post-processing device 9 are a post-processing device 9 that performs post-processing such as stapling and punching, sorting, sorting and grouping, etc., on the printed matter printed and discharged from the composite device 1. , An interface and a cable for connecting this to the main body of the composite apparatus 1.

  As shown in FIG. 2, the operation panel 10 includes an LCD display unit 101, which is a large LCD (liquid crystal display) device, a start key 102, a stop clear key 103, a reset key 104 (all clear key), an initial setting key 105, power saving. It consists of a plurality of operation keys such as a key 106. Since this image forming apparatus is a composite apparatus, the operation display means can switch the copy function screen, the printer function screen, the facsimile function screen, and the scanner function screen with a selection key on the left side of the operation panel 10.

  In the copy function, the screen displayed on the LCD display unit 101 is a basic screen shown in FIG. 3 and a “user function screen” (function screen) when “user function” is selected from a plurality of tabs below this screen. Is displayed). Further, when the “function list” tab is selected, a “function list screen” (one of the function screens) is displayed. In addition, the screen can be switched to a printer function, network scanner function, or facsimile function screen. The operator of the multi-function device 1 can operate the keys provided on the operation panel 10 and the LCD display unit 101 to set conditions for a desired print job. The conditions here are for copying and printing a manuscript, for manuscript reading (for example, the number of manuscript pages, manuscript size, etc.), for image storage and printing control (for example, number of printing pages, enlargement)・ Reduction, aggregation, image composition, etc.)

  The scanner I / F 11 is an interface for controlling the scanner unit 12 and the automatic document feeder 13 by connecting to the scanner unit 12 placed on the multifunction apparatus 1 via a cable.

  The scanner unit 12 conveys light by a halogen lamp or a fluorescent lamp to a document which is conveyed one by one by an automatic document conveying device 13 or placed on a contact glass, and then reflects the reflected light to a CCD (charge coupled device) sensor. The analog signal is converted into a digital signal by A / D conversion, image processing is performed in the image processing unit, and the image is processed in the subsequent bitmap memory 15. In the copy function, the analog signal is expanded in the bitmap memory 15. The image is encoded by the CODEC 16 and stored in the image storage means 14. In addition to the image data from the scanner unit 12, the bit map memory 15 includes intermediate language information generated by analyzing a print command transferred from a personal computer connected via a network or the like by the printer controller 6, and the other party. The image data sent from the facsimile 26 via the public line 19, the NCU 18, and the modem 17 is decompressed by the CODEC 16 as needed, and is expanded and held as full bit map image data. The CODEC 16 is also used for decoding the encoded image data included in the print data.

  The automatic document feeder 13 conveys a series of documents set on the document stacking tray 27 one by one to the document reading position, and then discharges them. The document reading position varies depending on the type of the automatic document feeder 13. For example, in the sheet-through type automatic document feeder 13, the document is exposed through a slit facing this position at the bottom of the document conveyance path, and the reflected light is read by a CCD sensor fixed near the slit. The document circulation type automatic document feeder 13 is on the contact glass. In this case, the image is read by scanning the CCD sensor in the same manner as in the case where the document is manually placed on the contact glass and copied.

  The image storage means 14 encodes and stores the image data read by the scanner unit 12 with the CODEC 16 when performing normal facsimile memory transmission and reserved transmission, in addition to the above-described copy function, received image area, and intermediate language area. . When the scanner function is used, the image data read by the scanner unit 12 can be transmitted to the external PC (24, 25) after being encoded by the CODEC 16, and similarly, the facsimile polling function can be used. It is also possible to transmit in accordance with a request from the other party's facsimile. As an image data storage element, in addition to the RAM 4, in recent years, an image forming apparatus is often used as an image memory by using a relatively large capacity hard disk for storing image data.

  The modem 17 converts an analog signal transmitted from the public line 19 into a digital signal, and conversely converts the digital signal into an analog signal and transmits it through the public line, and performs modulation and demodulation. For example, only HDLC frames are received. The NCU 18 performs connection to the public line, switching between facsimile and telephone, sending an on-hook signal to the line, ring detection, and the like.

  The network I / F 20 is an interface that connects the composite apparatus 1 to the network. Here, it is connected via a network cable 22 to a personal computer (24, 25), a printer 23, and other connection devices not shown.

  The bus 21 is a bus for exchanging data and signals of each configuration described above. Although there are buses for image data and buses for control signals, they are represented by one for short here.

  The CPU 2 controls the operation and function of each component of the multifunction device 1 including the above of the multifunction device 1 and executes a print job in accordance with the condition setting. Here, the print job refers to a process in which the CPU 2 controls the operation and function of each component in order to obtain a printed material corresponding to a series of documents in accordance with the above condition settings. Further, the CPU 2 is connected to a ROM 3 storing various programs including the control program of the present invention, and a RAM 4 storing user choice data, setting information, total count data, various font data, and the like.

  Particularly in the image forming apparatus of the present invention, as shown in FIG. 8, the CPU 2 includes a print control unit 201, an incomplete image data storage control unit 202, a print data generation unit 203, an incomplete image print control unit 204, and a last one. An image printing control unit 209, a recovery display unit 207, and a recovery control unit 208 are included. Each of these units 201 to 208 controls operations and functions that are characteristic of the image forming apparatus of the present invention. Needless to say, the CPU 2 controls not only the operations of the respective units 201 to 208 but also the overall operations of the components of the composite apparatus 1.

  The print control unit 201 converts a plurality of image data stored in the image storage unit 14 into print data by a print data generation unit 203 (to be described later) according to the print job condition setting set on the operation panel 10. Printing is performed by operating the unit 7.

  The incomplete image data storage control unit 202 reads the document while being conveyed by the automatic document conveyance device 13 and conveys the document while jamming, opening the cover, or turning off the power while being stored in the image storage unit 14. If there is a cause of interruption, the data stored in the image storage means 14 is not erased until halfway, but is stored as incomplete image data.

  The print data generation unit 203 generates print data from the image data stored in the image storage unit 14. That is, the image data is decoded by the CODEC 16 and then subjected to image processing in accordance with the print job condition settings to obtain print data. In addition, when printing data is generated by an instruction from the incomplete image printing control unit 204 or the last image printing control unit 204, image processing (for example, so as to be recognized separately from the printed material by the above condition setting by the instruction) , Rotation, enlargement / reduction, inversion, etc.). Further, the print data generation unit 203 stores the generated print data. Since the printing data is usually printed immediately, it may be stored in the bitmap memory 15. However, if the printing data is not printed immediately, it can be stored in the image storage means 14. Here, when the image is stored in the image storage unit 14, it may be encoded by the CODEC 16 and is combined at the time of printing execution. Alternatively, the print data may be stored in the image storage unit 14 as it is.

  When the document conveyance is interrupted, the incomplete image print control unit 204 selects the incomplete image data and instructs the print data generation unit 203 to generate print data from the incomplete image data. Further, the generated printing data is printed. The printed material of the imperfect image printed here is preferably discharged (for example, rotated, different paper sizes, other discharge trays, etc.) so as to be distinguished from the printed material printed normally.

  The last image printing control unit 209 selects the image data of the last read document when the document conveyance is interrupted, when there is no incomplete image data, or when the incomplete image data is less than a predetermined capacity, The print data generation unit 203 is instructed to generate print data from the last image data. Further, the generated printing data is printed. The printed material of the last image printed here is preferably discharged so that it can be distinguished from the printed material that has been normally printed, as in the case of the incomplete image.

  The recovery display unit 207 sets all of a series of documents on the document stacking unit and resumes printing when printing data is printed by the incomplete image printing control unit 204 or the last image printing control unit 209. A message for prompting the operator to give an instruction is displayed on the LCD display unit 101. Note that the timing for displaying this message is after the cause of interrupting the document conveyance is removed, for example, after the jam is cleared, the cover is closed, and the power is turned on.

  When the resume control unit 208 is instructed to resume printing, the image data of the document read after the page corresponding to the incomplete image is read one page before the page corresponding to the incomplete image. The print control unit 201 is instructed to execute printing in accordance with the condition setting following the original image data. Here, if image data stored in the image storage unit 14 before resuming the print job is not printed yet, printing is started from the image data of that page. Of course, if all the image data stored before resuming the print job has been printed, the last image data has been printed. Therefore, after the instruction to resume printing, it is read after the page corresponding to the incomplete image. Printing is started from the image data of the received document. When the print job is resumed, the above message is displayed by the recovery display means. If the operator sets a series of originals according to the display, reading is resumed from the original of the page that caused the interruption of the original conveyance. . For a document up to one page before the page corresponding to the incomplete image after resuming the print job, the image data obtained by reading the image is deleted, or the corresponding page stored before the print job is resumed. Although it can be replaced with image data, it is preferable to skip the image without reading it.

  Further, the recovery control unit 208 performs the following operation when the series of document transportation is interrupted, when there is no incomplete image data, or when the incomplete image data is less than a predetermined capacity. That is, when the resume control unit 208 is instructed to resume printing, the image data of the document read one page after the page corresponding to the last image printed by the last image print control unit 209 The print control unit 201 is instructed to execute printing in accordance with the condition setting following the image data of the read original. Here, if image data stored in the image storage unit 14 before resuming the print job is not printed yet, printing is started from the image data of that page. Of course, if all the image data stored before resuming the print job has been printed, the last image data has been printed. Therefore, after the instruction for resuming printing, it is 1 more than the page corresponding to the last image. Printing is started from the image data of the original read after the page. When the print job is resumed, the above message is displayed by the recovery display means. If the operator sets a series of originals according to the display, reading is resumed from the original of the page that caused the interruption of the original conveyance. . For a document up to the page corresponding to the last image after resuming the print job, the image data obtained by reading the image is erased or replaced with the image data of the corresponding page stored before resuming the print job. Although it is possible, it is preferable to feed the image without reading it.

  As an embodiment of the present invention, processing related to recovery when copying a series of documents over a plurality of pages will be described with reference to the flowchart of FIG. First, a print job condition is set from the operation panel 10 (S201), a series of documents is set on the document stacking means 27 of the automatic document feeder 13 (S202), and the start key 102 is operated (S203). While feeding one sheet (S204), the CCD reads at the reading position while conveying the original. At this time, the analog image signal read by the CCD is A / D converted into a digital image signal, subjected to image processing, and developed in the bitmap memory 15. The image data developed in the bitmap memory 15 is encoded by the CODEC 16 and written into the image storage means 14 to be stored (S205). At this time, it is determined whether or not a jam or the like has been interrupted in the automatic document feeder 13 (S206). If there is no jam, it is determined whether or not all the documents on this page have been read (S207). If not, the process returns to S206. If the reading of this page is completed, it is determined whether or not there is a document for the next page (S208). If there is, the process returns to S204. Printing is performed according to the above condition settings. At this time, the print control unit 201 operates the printer unit 7 to perform printing (S209).

  In S209, the flow is such that printing is started after all the originals have been read. However, since reading and printing can be operated independently in practice, a job setting that can print a page that has been read (for example, If you just copy), you may do so. Also, if the job setting (for example, collective copy) can be performed only after reading of all pages of the document is completed, the document is temporarily stored in the image storage unit 14 and then printed.

  If an interruption such as a jam occurs in S206, the incomplete image data storage control unit 202 determines whether there is incomplete image data read halfway through the page of the document (S210), and there is incomplete image data. In this case, it is determined whether or not the incomplete image data is a predetermined size or more (S211). If the incomplete image data is a predetermined size or more, the incomplete image data is stored in the image storage means 14 without being erased. (S212). Since this predetermined size is such that it can be identified which document, 25% of the image data capacity of one page is sufficient. Subsequently, the incomplete image print control unit 204 instructs the print data generation unit 203 to generate and store print data corresponding to the incomplete image data (S213).

  If it is determined in S210 that there is no incomplete image data or the incomplete image data is equal to or smaller than a predetermined size, the process proceeds to S215 without storing the incomplete image data. In step S215, the last image print control unit 209 instructs the print data generation unit 203 to generate and save print data corresponding to the last image.

  Next, as shown in FIG. 5, the recovery display means 207 displays that the original jammed by the automatic document feeder 13 is to be removed, and “reset the document from the beginning and restart it”. A message is displayed and the user is prompted to reset the original from the beginning. At this time, the data of the incomplete image or the last image may be displayed. Then, when the user sets a document from the beginning according to the above instruction (S216) and operates the start key (S217), the re-set one document is fed (S218), and the image data corresponding to this document is If it has already been stored (S219), the original is conveyed and discharged without being read (S220), and the process returns to S218 to feed the next original. If it is determined in step S219 that there is no corresponding image data, the process advances to step S221, and the print control unit 201 prints the already stored image data in accordance with the print job condition setting. Next, the incomplete image or the last image generated in S213 or S215 is printed. At this time, it is printed or discharged so that it can be distinguished from the printed matter printed in S221 or printed in S209. Thereafter, the process proceeds to S204, the remaining originals are read (S204 to S208), printing on these originals is executed, and the recovery ends (S209). Note that the processing after S218 is controlled by the recovery control means 208. Further, when there are a plurality of print copies, the process of S209 may be repeated for the number of copies. At this time, all the image data of a series of originals are stored in the image storage means 14, so it is sufficient to print this image data, and it is no longer necessary to print an incomplete image or the last image.

  In the above processing, for example, when three copies of eight originals are copied, if a jam occurs in the original conveying device while reading the sixth page of the original, the paper is discharged as shown in FIG. The Here, after the first page of the first page to be discharged, which corresponds to the original when the jam occurs, the incomplete image corresponding to the original of the sixth page conveyed in the horizontal direction, or the last page One printed matter on which five pages of images are printed is discharged, and then the remaining prints are discharged. The second and third copies are printed as they are. The user only has to confirm whether the vicinity of one printed matter on which the incomplete image discharged like a partition sheet on the jammed page or the five-page image as the last image is printed is properly aligned. Further, for printing the incomplete image or the last image, as shown in FIG. 7, it is more convenient to perform printing indicating that the output is due to page information or occurrence of a jam. As information to be given, time information, user information, and the like can be used. As the identifiable discharge mode, it is easy to change the paper discharge method. However, the discharge position of the same paper may be slightly shifted, or printing may be performed on color paper or a large size paper. Further, when there is a binding process such as stapling, the effect of the present invention can be similarly obtained even if the sheet is separately discharged instead of being discharged near the page where the jam occurs. Further, even if image processing such as reduction / enlargement and inversion is performed, the image can be discharged in a recognizable manner.

  In the above embodiment, the image read before the occurrence of the jam is printed and then the remaining document is read and printed. However, the present invention can be implemented in other forms without changing the gist of the present invention. It is. For example, when a jam or the like is interrupted in step S206, the page number of the document in which the jam has occurred is stored in the RAM 4, and the image data of all the documents is stored in the image storage unit 14 after the print job is resumed. Then, printing may be executed. In this case, the processes in steps S221 and S222 may be executed immediately before S209. Here, when interruption such as jam occurs many times, the page number of the interrupted document is saved, and the process of S221 and S222 is repeated the number of interruptions, and then the process proceeds to S209. If there are a plurality of print copies, the process of S209 may be repeated as in the above embodiment.

  As described above, according to the present invention, even when a jam or the like occurs in the automatic document feeder, it can be efficiently recovered. Further, even when a jam or the like occurs in the automatic document feeder and is interrupted, it is easy to confirm the copy corresponding to the jammed document after recovery, and the user's anxiety can be resolved.

1 is a block diagram of a composite apparatus and peripheral devices that employ the present invention. 3 is an operation panel of a composite apparatus employing the present invention. 4 is a basic screen displayed on the LCD display unit of the operation panel of the composite apparatus employing the present invention. 6 is a flowchart relating to a recovery process at the time of reading a document in the copy function of the multifunction apparatus employing the present invention. It is an example of display of incomplete image data and a recovery instruction means. 6 is an example of a printed matter subjected to recovery processing in a copy function of a composite apparatus employing the present invention. It is an example when an incomplete image is printed by the composite apparatus employing the present invention. It is a figure which shows the structure of CPU.

Explanation of symbols

1; Compound device 2; CPU
3; ROM
4; RAM
6; printer controller 7; printer unit 10; operation panel 11; scanner interface 12; scanner unit 13; automatic document feeder 14; image storage means 15;
21; Bus 23; Printer 27; Document stacking tray 201: Print control means 202: Incomplete image data storage control means 203: Print data generation means 204: Incomplete image print control means 207: Recovery display means 208: Recovery control means 209: Last image printing control means

Claims (5)

In an image forming apparatus that executes a print job for obtaining a printed material corresponding to a series of documents,
Operation display means for performing condition setting and execution instruction of the print job;
In accordance with the condition setting, a document feeding and conveying unit that feeds the series of documents set on the document stacking unit one by one and sequentially conveys them to the document reading position;
Document reading means for reading the document at the reading position according to the condition setting;
Image storage means for sequentially storing image data of the read original in page units according to the condition setting;
Print control means for printing a plurality of image data stored in the image storage means according to the condition setting;
If there is a cause for interrupting conveyance when the document feeding / conveying unit conveys the series of documents, incomplete image data which is less than one page corresponding to a document page being read is erased. Incomplete image data storage control means for storing in the image storage means without,
Print data generation means for generating print data from the image data stored in the image storage means;
If the incomplete image data is equal to or greater than a predetermined capacity, and an incomplete image printing control means for printing only the printing data generated by the print data generation means on the basis of incomplete image data stored in the image storage unit ,
When the incomplete image data is not equal to or larger than a predetermined capacity or there is no incomplete image data to be stored, the print data generated by the print data generation unit based on the image data of the document read last correctly A final image printing control means for printing only data,
Interrupted transport of the series of original Then, still printed with interrupting the image data that has not been printed, in accordance with the storage status of said image storage means, the line gastric said one of image printing control,
An image forming apparatus, wherein when printing restart is instructed, printing of image data not yet printed out of image data stored in an image storage unit before restarting a print job is started . A recovery display means for displaying on the operation display means a message for prompting an operator to set all of the series of documents on the document stacking means and instruct to resume printing;
When printing restart is instructed, the image data of the document read after the page corresponding to the incomplete image follows the image data of the document read one page before the page corresponding to the incomplete image. The image forming apparatus according to claim 1, further comprising a recovery control unit that executes the print job in accordance with the condition setting. A recovery display means for displaying on the operation display means a message for prompting an operator to set all of the series of documents on the document stacking means and instruct to resume printing;
When printing restart is instructed, the image data of the document read one page after the page corresponding to the last image printed by the last image print control unit is changed to the image data of the last read document. The image forming apparatus according to claim 1, further comprising a recovery control unit that executes the print job according to the condition setting.   The incomplete image printing control means or the last image printing control means discharges the printed matter printed by the incomplete image distinguishably from the printed matter printed before or after the printed matter. The image forming apparatus according to any one of 1 to 3. Operation display means for performing print job condition setting and execution instructions for obtaining a printed material corresponding to a series of originals;
A document feeding and feeding unit that feeds the series of documents set on the document stacking unit one by one and sequentially conveys them to the document reading position; a document reading unit that reads the document at the reading position according to the condition setting;
A computer for controlling an image forming apparatus having image storage means for sequentially storing image data of the read original in page units according to the condition setting ;
Print control means for printing a plurality of image data stored in the image storage means according to the condition setting;
If there is a cause for interrupting conveyance when the document feeding / conveying unit conveys the series of documents, incomplete image data which is less than one page corresponding to a document page being read is erased. Incomplete image data storage control means for storing in the image storage means without,
Print data generation means for generating print data from the image data stored in the image storage means;
If the incomplete image data is equal to or greater than a predetermined capacity, and an incomplete image printing control means for printing only the printing data generated by the print data generation means on the basis of incomplete image data stored in the image storage unit ,
When the incomplete image data is not equal to or larger than a predetermined capacity or there is no incomplete image data to be stored, the print data generated by the print data generation unit based on the image data of the document read last correctly Function as the last image printing control means to print only data,
Interrupted transport of the series of original Then, still printed with interrupting the image data that has not been printed, in accordance with the storage status of said image storage means, the line gastric said one of image printing control,
A control program for starting printing after image data that has not yet been printed out of image data stored in the image storage unit before resuming a print job when an instruction to resume printing is given .

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