JP2012096455A - Image forming apparatus, program, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a use-friendly image forming apparatus favorable in the selection of the type of a device, or operability.SOLUTION: The image forming apparatus 3 includes: a PDL analysis module 301 that analyzes PDL type printing data received from a host computer 2 to generate image data; a printing management module 306 that forms an image on a recording sheet using the image data generated by the PDL analysis module 301; a job management module 302 that determines whether or not the formation of the images related to the PDL type printing data can be normally completed before the images are formed by the printing management module 306; and a memory management module 305 that stores reserve information in a RAM 316, the reserve information that makes printing data determined to be unprintable associated with unprintable information indicating a reason when the printing is determined to be impossible by the job management module 302.

Description

  Embodiments described herein relate generally to an image forming apparatus, a program, and a storage medium.

  Conventionally, print data in a PDL (Page Description Language) format received from a host computer is analyzed, image data in a bitmap format is generated, and an image is formed on a recording sheet using the generated image data. Image forming apparatuses such as page printers are generally well known.

  Conventionally, in this type of image forming apparatus, whether or not an error occurs during the formation of the image related to the print data before printing the image of the print data based on the print condition included in the print data. When an error is predicted and an image is predicted to be generated, image data obtained by analyzing the print data without executing image formation is used as print hold information as HDD (Hard Disk Drive: A hard disk device having a function of preferentially executing image formation related to subsequent print data to be executed next to the print data is known (see, for example, Patent Document 1). .

  However, the image data as the print hold information described above has a large data size, and in particular, the size of the image data for a plurality of pages is so large that it cannot be stored in a small-sized storage device such as a RAM (Random Access Memory). However, there is a problem that the above-described functions cannot be used in an image forming apparatus in which a large-capacity storage device such as the HDD is not mounted.

  Further, in the conventional image forming apparatus, as a means for resuming printing of print data whose printing is being suspended, manual resuming means for instructing resumption of printing of pending print data using the operation panel of the image forming apparatus is provided. Provided, or provided with an automatic restart means for automatically restarting printing of pending print data when the removal of the cause of error such as replenishment of recording paper by the user (ie, change in device status) is detected. Are known.

  However, in the image forming apparatus provided with the manual restarting unit described above, an error always occurs after restarting. Therefore, after the error occurs, the user selects another tray different from the initial designation by using the operation panel. There is a problem that it is time-consuming for the user because it is necessary to instruct the resumption of printing or to cancel the print job related to the pending print data (ie, the hold job).

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an image forming apparatus, a program, and a storage medium that are easy to use for a user in terms of model selection and operability.

  In order to solve the above-described problems and achieve the object, the image forming apparatus of the present invention analyzes the data in a predetermined format received from the information processing apparatus and generates image data, and the analysis means generates the data An image forming unit that forms an image on a recording medium using the image data that has been recorded, and whether or not the image formation relating to the data in a predetermined format can be normally completed before the image is formed by the image forming unit When the determination unit determines that image formation is impossible, the holding unit associates the data in a predetermined format determined to be impossible and the unusable information indicating the reason for the impossibility. Holding means for holding information in the storage means.

  According to another aspect of the invention, there is provided a program implemented by a computer installed in an image forming apparatus, analyzing data in a predetermined format received from an information processing apparatus to generate image data, and image data generated by the analyzing means. An image forming unit that forms an image on a recording medium using the image forming unit, and a determination unit that determines whether or not the formation of an image related to data in a predetermined format can be normally completed before the image forming unit forms an image. When the determination unit determines that image formation is impossible, the storage unit stores hold information in which data in a predetermined format determined to be impossible and unacceptable information indicating the reason for the impossibility are associated with each other It is a program that functions as a holding means for holding.

  Furthermore, the storage medium of the present invention is a computer-readable storage medium for storing the program.

  According to the present invention, it is possible to provide an image forming apparatus that is convenient for the user in terms of model selection and operability. In particular, according to the present invention, it is possible to use a function for holding and resuming printing even in an image forming apparatus that does not include a large-capacity storage device such as an HDD. In addition, according to the present invention, it is possible to reduce or reduce the user's operation time when resuming image formation.

FIG. 1 is a diagram showing a schematic configuration of an image forming system according to the present embodiment. FIG. 2 is a block diagram illustrating a hardware configuration of the image forming apparatus. FIG. 3 is a diagram illustrating a configuration example of the print resumption screen. FIG. 4 is a block diagram illustrating a functional configuration of the image forming apparatus. FIG. 5 is a diagram illustrating a configuration example of the pending job management table. FIG. 6 is a flowchart showing the processing operation of the image forming apparatus. FIG. 7 is a flowchart showing the processing operation of the image forming apparatus. FIG. 8 is a flowchart showing the processing operation of the image forming apparatus. FIG. 9 is a flowchart illustrating the processing operation of the image forming apparatus.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram for explaining a schematic configuration of an image forming system 1 according to the present embodiment.

  As shown in FIG. 1, the image forming system 1 includes a plurality of host computers 2A, 2B, and 2C (hereinafter, an unspecified host computer is simply referred to as a host computer 2) and one image forming apparatus 3. The image forming apparatus 3 and a plurality of host computers 2A, 2B, and 2C are communicatively connected via the communication network 4.

  Each host computer 2 is a general computer such as a personal computer (PC), and transmits print data in PDL format created by each host computer 2 to the image forming apparatus 3 via the communication network 4.

  The image forming apparatus 3 is a page printer such as a laser printer, analyzes print data received from each host computer 2 via the communication network 4, generates image data in a bitmap format, and generates the generated image data. An image is formed on a recording medium such as a recording sheet.

  The communication network 4 is a network such as a LAN (Local Area Network).

  FIG. 2 is a block diagram for explaining the hardware configuration of the image forming apparatus 3.

  As shown in FIG. 2, the image forming apparatus 3 has a generally well-known page printer hardware configuration. For example, the controller 31, the operation panel 32, the printer engine 33, and the like. And a power supply unit 34.

  Here, the controller 31 unit is a control mechanism of the image forming apparatus 3, and converts PDL format print data received from the host computer 2 into bitmap format image data and outputs it to the printer engine unit 33. Control various processes.

  The controller unit 31 includes a host I / F 311, a program ROM 312, a font ROM 313, a panel I / F 314, a CPU 315, a RAM 316, an NV-RAM 317, and an engine I / F 318.

  The host I / F 311 is an interface with the host computer 2. Specifically, the host I / F 311 is an interface for receiving print data and control signals from the host computer 2 and transmitting status signals from the image forming apparatus 3 to the host computer 2.

  The program ROM 312 stores various control programs for controlling processing operations of the image forming apparatus 3, and stores various data for management in the controller unit 31. Note that the program ROM 312 of the present embodiment stores a control program P for executing processing procedures shown in FIGS.

  The font ROM 313 stores information on various fonts used for printing.

  The panel I / F 314 is an interface between the controller unit 31 and the operation panel unit 32. Specifically, the panel I / F 314 outputs display information to be displayed on the display unit (not shown) of the operation panel unit 32 from the controller unit 31 to the operation panel unit 32, or the controller I / F 314 from the operation panel unit 32. This is an interface for inputting an operation signal output to the unit 31.

  The CPU 315 controls processing operations of the image forming apparatus 3 by reading out various control programs such as the control program P stored in the program ROM 312, developing them on the RAM 316, and executing them.

  The RAM 316 temporarily stores work data being executed by the CPU 315. Specifically, the RAM 316 temporarily stores PDL format print data received from the host computer 2 via the host I / F 311 and bitmap format image data generated by interpreting the received print data. Remember me. Note that the RAM 316 of this embodiment temporarily stores print data in PDL format as hold information described later.

  The NV-RAM 317 is a nonvolatile RAM for storing data that needs to be retained even when the power of the image forming apparatus 3 is shut off.

  The engine I / F 318 is an interface between the controller unit 31 and the printer engine unit 33. Specifically, the engine I / F 318 is an interface that transmits a control signal from the controller unit 31 to the printer engine unit 33 and receives a status signal from the printer engine unit 33 to the controller unit 31.

  The operation panel unit 32 is a user interface including a touch panel type display unit 321 for displaying the state of the image forming apparatus 3 and the like, a switch unit 322 for switching the mode of the image forming apparatus 3, fonts used for printing, and the like. .

  Note that the operation panel unit 32 of the present embodiment displays a print resumption screen 321A shown in FIG.

  FIG. 3 is a diagram for explaining a configuration example of the print resumption screen 321A.

  The print resumption screen 321A is a screen for requesting resumption of printing of a print job whose printing is suspended (that is, a suspended job) by a user's manual operation. The print resumption screen 321A is displayed on the display unit 321 by a predetermined user operation using the display unit 321 or the switch unit 322 of the operation panel unit 32, for example.

  As shown in FIG. 3, the print resumption screen 321A according to the present embodiment includes a document name, a user ID as specific information that allows the user to specify print data whose print is suspended (that is, a suspended job). Document information such as date / time and number of pages, and error factor information are displayed. The error factor will be described later.

  Returning to FIG. 2, the printer engine unit 33 includes a printer unit 331. The printer unit 331 is a unit for realizing a printer function for forming an image on recording paper based on image data input from the controller unit 31 via the engine I / F 318. More specifically, the printer unit 331 creates and develops an electrostatic latent image on the photoconductor based on the input image data, and feeds (supply) recording paper from a paper feed tray (not shown). Then, an image is formed on the recording paper by transferring and fixing the electrostatic latent image on the fed recording paper.

  The power supply unit 34 converts the voltage from the commercial power source into necessary power for each load unit and supplies it.

  Since the host computer 2 is a known computer such as a PC, the description of the hardware configuration is omitted here.

  FIG. 4 is a block diagram for explaining a functional configuration of the image forming apparatus 3.

  As shown in FIG. 4, the image forming apparatus 3 has a PDL analysis module 301, a job management module 302, and a service providing module group 303 as functional configurations for executing processing procedures shown in FIGS. 6 to 9 described later. And have.

  The service providing module group 303 includes a network management module 304, a memory management module 305, a print management module 306, a system management module 307, and an operation panel management module 308.

  Here, the PDL analysis module 301 receives print data in PDL format from the network management module 304 via the job management module 302, analyzes the received print data, generates bitmap format image data, and generates the generated data. The processed image data is temporarily stored in a predetermined storage area on the RAM 316 secured from the memory management module 305 via the job management module 302.

  The PDL analysis module 301 acquires device configuration information from the system management module 307 via the job management module 302 when the image data is generated. The device configuration information is information such as information on attachment / detachment of the paper feed tray and paper discharge tray, and information on the type of paper in the paper feed tray.

  The job management module 302 performs control related to the overall processing for print data in the PDL format, and executes mediation processing between the PDL analysis module 301 and each module of the service providing module group 303.

  More specifically, the job management module 302 performs mediation processing for transferring print data in PDL format received by the network management module 304 to the PDL analysis module 301, and the PDL analysis module 301 receives the device configuration from the system management module 307. Media processing for acquiring information, mediation processing for the PDL analysis module 301 to secure a recording area for temporarily storing image data from the memory management module 305, and image data created by the PDL analysis module 301 are sent to the print management module 306. Execute mediation processing to issue print requests.

  The network management module 304 executes communication control in the host I / F 311 such as receiving print data from the host computer 2.

  More specifically, the network management module 304 controls a communication protocol (FTP (: File Transfer Protocol) or lpr (: Line Printer daemon protocol)) that is indispensable when data is received from the host computer 2. Data (print data or the like) is received via the host I / F 311 and the received data is transferred to another module.

  The memory management module 305 manages a memory such as the RAM 316 and allocates or releases a predetermined storage area of the memory in response to a request from another module.

  In the present embodiment, the memory management module 305 causes the RAM 316 to hold a hold job management table T for registering hold information regarding the hold job.

  FIG. 5 is a diagram for explaining a configuration example of the pending job management table T.

  As shown in FIG. 5, the hold job management table T is a table for registering document information, hold data file path, and error factor information as hold information.

  The document information is the same information as the document information included in the pending job list of the print resumption screen 321A shown in FIG. 3, and includes the document name, user ID, date / time, and number of pages. The received data file path is information indicating the file path of the print data. The error factor information is information indicating the type of error.

  The print management module 306 includes various types for the printer engine unit 33 to form image data generated by the PDL analysis module 301 and temporarily stored in a predetermined storage area of the RAM 316 managed by the memory management module 305 on a recording sheet. Control processing. The various processes include issuing a paper supply / discharge command, issuing a post-processing execution command, detecting an error state related to printing, and notifying other modules.

  The system management module 307 manages and controls the device configuration information and device state information of the image forming apparatus 3. The device status information is information indicating a status such as printing, waiting, or an error such as jam or out of paper.

  In other words, the system management module 307 notifies the above-described device configuration information and device state information to other modules, and manages device settings by the user. The device settings are settings of customizable items that change the operation of the image forming apparatus 3.

  The operation panel management module 308 manages display on the display unit 321 of the operation panel unit 32, switch operation of the switch unit 322 by the user, and the like.

  More specifically, the operation panel management module 308 displays the status of the image forming apparatus 3 on the display unit 321 or changes the device settings managed by the system management module 307 based on a request from another module. A menu screen (not shown), an error screen (not shown), a print restart screen 321A shown in FIG. 3 and the like are displayed to prompt the user to perform an appropriate operation.

  The operation panel management module 308 recognizes the operation button icon selected by the user when the operation button icon is displayed on the menu screen (not shown), the error screen (not shown), the print restart screen 321A, or the like. To notify other modules.

  Each functional component (301 to 303) illustrated in FIG. 4 is realized by the CPU 315 developing and executing the control program P stored in the program ROM 312 on the RAM 316.

  Next, the processing operation of the image forming apparatus 3 in the image forming system 1 described above will be described.

  FIG. 6 is a flowchart for explaining the processing operation of the image forming apparatus 3, and shows a processing procedure when print data is received from the host computer 2 in this case.

  As shown in FIG. 6, first, in the image forming apparatus 3, when print data in PDL format is received from the host computer 2 via the communication network 4 in step S1, the network management module 304 uses the received print data as a job. Transfer to the management module 302. Then, the job management module 302 temporarily stores the received print data in the RAM 316 and outputs the copied print data to the PDL analysis module 301.

  In step S2, the PDL analysis module 301 analyzes the PDL format print data input from the job management module 302 and generates bitmap format image data.

  Subsequently, in step S3, the job management module 302 generates a print job. More specifically, in the process of step S3, the job management module 302 generates a print job for each page each time the creation of image data for one page is completed.

  Subsequently, in step S4, the job management module 302 determines whether printing can be performed. Specifically, the job management module 302 determines whether or not a predetermined error such as running out of paper occurs during the execution of the print job generated in step S3, that is, during the formation of an image related to the print job. (Predicted), it is determined that printing execution is impossible (impossible) when it is determined that a predetermined error occurs, and printing execution is possible (possible) when it is determined that no error occurs. Whether or not printing can be executed is determined.

  It should be noted that the predetermined error referred to here is 1) any of the user-specified conditions in the tray designation condition (first condition) included in the print condition (image formation condition) included in the received print data in the PDL format. Various errors (first error) when a tray is designated (hereinafter sometimes referred to as “tray designation”), and 2) recording paper according to the size and type of the recording medium designated by the user There are various errors (second errors) when an automatic tray for automatically selecting a tray for feeding paper is designated (hereinafter sometimes referred to as “when automatic tray is selected”).

  More specifically, various errors when specifying the tray in 1) are “paper end”, “paper size / paper type mismatch”, “tray not set (when not set tray)”, “both sides not allowed (both sides) There is an error such as "When tray is disabled".

  Here, the “paper end” is a condition that is included in the printing conditions in addition to the recording paper on the tray designated by the user, that is, the conditions for designating the size and type of the recording paper. This is a case where the recording paper (recording medium) designated by the user in (second condition) is not accommodated. “Paper size / paper type mismatch” means that the size and type of recording paper stored in the tray specified by the user does not match the size and type of recording paper specified in the second condition It is. “Tray not set (when not set tray is specified)” is a case where the tray specified by the user is not set. Further, “both sides are impossible (when both sides cannot be specified tray)” is a case where the tray specified by the user is a tray that cannot form double-sided images.

  In addition, various errors when the automatic tray is selected in 2) include “paper end” and “no corresponding tray”.

  Here, “paper end” is a case where there is no recording paper in the automatically selected tray, as described above. “No corresponding tray” means that there is no corresponding tray.

  As a result of the determination in step S4, if it is predicted that a predetermined error will not occur during the execution of the print job and it is determined that printing can be executed (Yes), step S5 is continued. The print management module 306 executes a print job and forms an image on a recording sheet using the image data generated in step S2.

  Subsequently, in step S6, the memory management module 305 deletes the print data temporarily stored in the RAM 316 in response to a request from the job management module 302. Thereafter, the image forming apparatus 3 ends the processing here.

  On the other hand, as a result of the determination in step S4, when it is predicted that a predetermined error occurs during printing and it is determined that printing execution is impossible (impossible) (step S4: No), then in step S7, The job management module 302 executes print job hold processing.

  Specifically, in the hold processing in step S7, the document obtained by the memory management module 305 after the analysis of the print data is converted into the PDL format print data temporarily stored in the RAM 316 in response to a request from the job management module 302. A hold job management table T (see FIG. 5) for registering hold information in which information is associated with predicted error factor information (that is, unusable information indicating the reason why printing cannot be performed) is stored in a predetermined storage area on the RAM 316 To remember.

  After the processing in step S7, in step S8, the memory management module 305 deletes the image data stored in a predetermined storage area on the RAM 316 in response to a request from the job management module 302. Thereafter, the image forming apparatus 3 ends the processing here.

  FIG. 7 is a flowchart for explaining the processing operation in the image forming apparatus. In this case, the processing procedure when a manual resumption instruction for the suspended job is issued by the user is shown.

  As shown in FIG. 7, first, when the user selects a desired suspended job for resuming printing from the list of suspended jobs on the print restart screen 321A displayed on the display unit 321, in step S11, the job is selected. The management module 302 reads hold information regarding the corresponding hold job from the hold job management table T stored in the RAM 316.

  In step S12, the job management module 302 refers to the error factor information included in the hold information read in step S11, and calculates a printing condition (image forming condition) that can avoid the error. Thereafter, the job management module 302 changes the print condition of the print data corresponding to the corresponding hold job to the calculated print condition. Note that the printing condition changing process in step S12 will be described in detail with reference to FIG.

  After the process in step S12 is completed, the image forming apparatus 3 performs the same process as in steps S2 to S8 in FIG.

  FIG. 8 is a flowchart for explaining details of the printing condition changing process in step S12.

  As shown in FIG. 8, first, in step S121, the job management module 302 acquires information on printing conditions (image forming conditions) obtained by analyzing print data from the PDL analysis module 301. Based on the information, it is determined whether the tray designation included in the printing condition is “when tray is designated” or “when automatic tray is selected”.

  As a result of this determination, if the job management module 302 determines that “tray designation” is set (step S121: Yes), then in step S122 and step S123, the job management module 302 reads the suspension read in step S11. Based on the error factor information included in the information, it is determined whether the error factor is “double-side prohibited”, “paper size / paper type mismatch”, or “paper end / tray not set”.

  As a result of the determination, if the job management module 302 determines that the error factor is “paper end / tray not set” (step S122: No → step S123: No), then, in step S124, the user designates it. Since it is impossible to print using the designated tray, the job management module 302 changes the tray designation setting included in the printing condition from “tray designation” to “automatic tray selection”.

  Thereafter, in step S125, the job management module 302 searches for a tray with paper in accordance with a predetermined tray priority order.

  If a tray with paper is detected as a result of this search (step S126: Yes), then in step S127, the job management module 302 is included in the print conditions of the print data corresponding to the print job. The setting of the paper size and paper type is changed to the setting of the paper size and paper type of the detected paper tray. Thereafter, the image forming apparatus 3 ends the processing here.

  On the other hand, if no tray with paper is detected as a result of the search (step S126: No), the error cannot be avoided, and the image forming apparatus 3 ends the processing here.

  On the other hand, if the job management module 302 determines that the error factor is “double-side prohibited” as a result of the determination in step S122 and step S123 (step S122: Yes), then in step S128, the job management module In 302, in order to avoid an error, the setting of “double-sided printing” included in the printing condition is changed to “single-sided printing”. Thereafter, the image forming apparatus 3 ends the processing here.

  On the other hand, as a result of the determination in step S122 and step S123, if the job management module 302 determines that the error factor is “paper size / paper type mismatch” (step S123: Yes), then in step S129. In order to avoid an error, the job management module 302 changes the setting of the paper size and paper type included in the printing condition to the setting of the paper size and paper type of the paper tray specified by the user. Thereafter, the image forming apparatus 3 ends the processing here.

  As a result of the determination in step S121, when the job management module 302 determines that “automatic tray selection” is selected (step S121: No), the image forming apparatus 3 subsequently performs the process in step S125 described above. Then, the same processing is performed.

  That is, according to the above-described embodiment, it is possible to provide an image forming apparatus that is convenient for the user in terms of model selection and operability.

  In particular, according to the present embodiment, print data having a small data size received from the information processing apparatus (host computer 2) is stored in the small-capacity storage device (RAM 316) instead of image data having a large data size as the hold information. Since the image forming apparatus is configured to be held, an image forming apparatus that does not include a large-capacity storage device such as an HDD can use a function for holding and resuming printing.

  Further, according to the present embodiment, when a resumption request for image formation of a predetermined format print data (PDL format print data) for which image formation has been suspended is received, the print condition of the print data instructed to resume is set. Since the printing conditions are automatically changed so as not to cause an error, it is possible to reduce or reduce the user's operation time when resuming image formation.

  In the manual restart process for the hold job described with reference to FIG. 7, the form in which the print condition is automatically changed regardless of the user's intention has been described. It is also possible to allow the user to select whether or not to change the printing conditions when manually resuming the held job.

  FIG. 9 is a modification of the processing procedure of FIG. 7. In this case, the only difference from the processing procedure of FIG. 7 is that a new processing step S13 is inserted between step S11 and step S12. Since other processes are the same, description thereof is omitted here.

  Specifically, in the process of step S13, the job management module 302 sets, on the display unit 321 of the operation panel unit 32, whether or not to automatically change the printing conditions according to the user operation. A setting screen (not shown) is displayed.

  When the user performs a selection operation for permitting the change of the print condition on the setting screen, the job management module 302 sets the print condition change permission setting to “ON” (step S13: Yes), and the image forming apparatus 3 Shifts the process to the process of step S12 described above, and performs the same process.

  On the other hand, when the user performs a selection operation that does not permit the change of the print condition on the setting screen, the job management module 302 sets the print condition change permission setting to “OFF” (step S13: No), and then the image. The forming apparatus 3 performs the same processing as the processing in steps S2 to S8 described above.

  As mentioned above, although demonstrated based on exemplary embodiment, this embodiment is not limited by above-described embodiment.

  For example, in the above-described embodiment, a description has been given of a form in which printing of a suspended job is resumed when a request for resuming printing is received from the user. It is also possible to automatically resume the pending job printing at a predetermined timing. In this form, it is preferable to implement a function for notifying the user that the image forming apparatus 3 has automatically resumed the suspended job.

  In the above-described embodiment, the image forming system 1 having a plurality of host computers 2 has been described. However, the present invention is not limited to this, and the image forming system 1 having one host computer 2 may be used.

  In the above-described embodiment, the case where the image forming apparatus 3 is a page printer such as a laser printer has been described. However, the present invention is not limited to this. For example, in addition to the printer function, a facsimile function, a scanner function, etc. Other image forming apparatuses such as a multifunction peripheral (MFP (Multi Function Peripherals)) may be used.

  Further, the control program P executed by the image forming apparatus of the above-described embodiment is a file in an installable format or an executable format, in addition to being preinstalled in the image forming apparatus, and a computer-readable storage. It may be provided by being stored in a medium, or may be provided or distributed via a network such as the Internet.

  In addition, the system configuration, the hardware configuration and functional configuration of each device, the configuration of the display screen, the processing procedure, and the like in the above-described embodiment are described as examples only, and the present embodiment is not limited thereto.

1 Image forming system 2 Host computer (information processing device)
DESCRIPTION OF SYMBOLS 3 Image forming apparatus 4 Communication network 31 Controller part 32 Operation panel part 33 Printer engine part 34 Electric power supply part 301 PDL analysis module (analysis means)
302 Job management module (determination means, reception means, change means, setting means)
303 Service providing module group 304 Network management module 305 Memory management module (holding means)
306 Print management module (image forming means)
307 System management module 308 Operation panel management module

Japanese Patent No. 3906667

Claims (9)

Analyzing means for generating image data by analyzing data in a predetermined format received from the information processing apparatus;
Image forming means for forming an image on a recording medium using the image data generated by the analyzing means;
A determination unit that determines whether or not the formation of an image related to data in a predetermined format can be normally completed before the image is formed by the image forming unit;
When the determination unit determines that image formation is impossible, the storage unit stores pending information that associates data in a predetermined format that is determined to be impossible and unusable information that indicates the reason for the failure. Holding means for holding;
An image forming apparatus. Accepting means for accepting a request to resume image formation of data in a predetermined format for which image formation is suspended;
When the accepting unit accepts the restart request, the image forming condition included in the data of the predetermined format is set to be normal based on the impossibility information associated with the data of the predetermined format. Change means to change to conditions that can be completed;
The image forming apparatus according to claim 1, further comprising: The holding means causes the storage means to hold the holding information further associated with specific information that allows a user to specify the data in the predetermined format obtained by the analysis of the analyzing means,
The receiving unit displays a list that includes the specific information and displays a list of data in a predetermined format in which image formation is suspended, on the display unit, and receives the restart request via the list. The image forming apparatus described in 1.   The determination unit determines whether or not an error occurs during the formation of an image related to data of a predetermined format before forming an image by the image forming unit, and when it is determined that the error occurs, image formation is performed. 4. The image forming apparatus according to claim 1, wherein the image forming apparatus determines that image formation is possible when it is determined that the error is not generated and the error is not generated. The image forming conditions include a first condition for designating a tray for supplying a recording medium, and a second condition for designating the size and type of the recording medium,
The error is recorded according to the first error when an arbitrary tray is specified by the user under the first condition and the size and type of the recording medium specified under the second condition. And a second error when an automatic tray is designated to automatically select a tray for supplying media, and
The first error may occur when the recording medium is not stored in the tray specified by the user, or when the size and type of the recording medium stored in the tray specified by the user are specified in the second condition. When the tray specified by the user is not set, or when the tray specified by the user is a tray that cannot perform double-sided image formation.
The image forming apparatus according to claim 4, wherein the second error is a case where a recording medium is not accommodated in an automatically selected tray or a case where there is no corresponding tray. Setting means for setting whether to allow the change of the changing means based on a user operation;
Further comprising
The image forming apparatus according to claim 2, wherein the changing unit changes the image forming condition only when permission is set by the setting unit. A computer mounted on the image forming apparatus;
Analyzing means for generating image data by analyzing data in a predetermined format received from the information processing apparatus;
Image forming means for forming an image on a recording medium using the image data generated by the analyzing means;
A determination unit that determines whether or not the formation of an image related to data in a predetermined format can be normally completed before the image is formed by the image forming unit;
When the determination unit determines that image formation is impossible, the storage unit stores pending information that associates data in a predetermined format that is determined to be impossible and unusable information that indicates the reason for the failure. Holding means for holding;
Program to make it work. The computer,
Accepting means for accepting a request to resume image formation of data in a predetermined format for which image formation is suspended;
When the accepting unit accepts the restart request, the image forming condition included in the data of the predetermined format is set to be normal based on the impossibility information associated with the data of the predetermined format. Change means to change to conditions that can be completed;
The program according to claim 7, further functioning.   A computer-readable storage medium storing the program according to claim 7 or 8.

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