JP6459570B2 - Image forming apparatus, activation control method, and activation control program - Google Patents

Description

  The present invention relates to an image forming apparatus, a start control method, and a start control program, and in particular, an image forming apparatus in which a storage unit includes a nonvolatile memory, a start control method in the image forming apparatus, and a start control program in the image forming apparatus. About.

  An image forming apparatus such as a digital multifunction peripheral generally includes a nonvolatile device (HDD (Hard Disk Drive), SSD (Solid State Drive), etc.) and a volatile device (DRAM (Dynamic Random Access Memory, etc.)). . Non-volatile devices can retain data even when power is off at a low speed, and volatile devices can retain data only when power is on at high speeds. Therefore, non-volatile devices store data and programs that should be retained even when the power is turned off, volatile devices are used as work areas (temporary areas during data processing), and CPU (Central Processing Unit) programs In general, data (work data) generated by executing is stored.

  On the other hand, in recent years, non-volatile memory (NVDIMM (Non-Volatile Dual In-line Memory Module)) that is faster, lower power consumption and higher reliability than existing non-volatile devices (SSD, HDD, etc.) as a new non-volatile device MRAM (Magnetoresistive Random Access Memory), ReRAM (Resistance Random Access Memory), etc.) have appeared. In the future, image forming apparatuses that use high-speed and large-capacity nonvolatile memory as an alternative to low-speed and large-capacity storage (HDD, SSD, etc.) and volatile memory are expected to become widespread. In such an image forming apparatus, data can be stored even after the power is turned off. Therefore, when the power is turned on again, the image forming apparatus can be started in the state when the power was turned off the previous time.

  Regarding such startup control at power-on, for example, in Patent Document 1 below, image data scheduled to be formed is stored in a nonvolatile storage medium for each job, and management information for each job of each image data is stored in a volatile memory. In the image forming apparatus that updates and stores the job management information and executes the image forming operation for each job, the job management information stored in the volatile memory is copied at the end of each job or every predetermined time. A copy storage unit that updates and stores in the non-volatile storage medium, a determination unit that determines whether job management information is stored in the non-volatile storage medium when the apparatus is started, and a storage by the determination unit If it is determined that the job management information has been restored, the job management information is restored from the nonvolatile storage medium to the volatile memory, and restored by the restorer And resuming means for resuming the image forming operation based on the job management information, an image forming apparatus equipped with is disclosed.

Japanese Patent Application Laid-Open No. 2005-22999

  Using the above conventional method, the image forming apparatus can be activated in the state when the power was last turned off. For example, when the user turns off the power for the purpose of stopping printing, Is expected to be destroyed. On the other hand, if the power is turned off due to a power failure or the like during execution of the print job, it is expected that the print job that was being executed when the power was turned off will be resumed from the middle after the power is turned on again. As described above, an image forming apparatus using a nonvolatile memory as a work area has a problem that it cannot meet both of these expectations.

  The present invention has been made in view of the above-described problems, and the main object of the present invention is to provide a desired storage device in the case where the storage unit is configured by a nonvolatile memory and the work data and job information are stored in the nonvolatile memory. An image forming apparatus, a start control method, and a start control program capable of starting the apparatus in a state are provided.

One aspect of the present invention includes a nonvolatile memory and a CPU that are readable and writable and that can store data without supplying power, and at least the CPU executes a program. The image forming apparatus includes a work area for storing work data generated by the control unit and a control unit used as a job storage area for storing job information related to image formation processed by the program. A selection control unit that allows a user to select whether or not to restore the image forming apparatus to the previous power-off state, and when not selected to restore the previous power-off state, at least the nonvolatile memory after erasing the working data stored in the working area, it has a, a start control unit that starts the image forming apparatus, the selection The control unit either discards the job, processes the job from the beginning, or restores the image forming apparatus to the previous power-off state and processes the job halfway. When the user selects and discards the job, the activation control unit selects the work data stored in the work area and the job information stored in the job storage area. If the user selects to process the job from the beginning, erase the work data stored in the work area and then start the image forming apparatus. If it is selected to process the job from the middle, the work data stored in the work area and the job information stored in the job storage area are stored. The image forming apparatus is activated without erasing the image forming apparatus, and the activation control unit turns off the image forming apparatus when the power is turned on again due to the occurrence of an error and the power is turned on again. The image forming apparatus is activated after erasing the work data stored in the work area and the job information stored in the job storage area without causing the user to select whether to return to It is characterized by that.

One aspect of the present invention includes a nonvolatile memory and a CPU that are readable and writable and that can store data without supplying power, and at least the CPU executes a program. A start control method in an image forming apparatus used as a work area for storing work data generated by the job and a job storage area for storing job information relating to image formation processed by the program, wherein the image forming apparatus is Selection control processing that allows the user to select whether to return to the previous power-off state, and if not selected to return to the previous power-off state, saves at least in the work area of the non-volatile memory after erasing the working data are, running, and startup control processing for starting the image forming apparatus, the selection system In the processing, either the job is discarded, the job is processed from the beginning, or the image forming apparatus is returned to the previous power-off state and the job is processed halfway. When the user selects and discards the job in the activation control process, the work data stored in the work area and the job information stored in the job storage area are displayed. When the image forming apparatus is activated after erasing and it is selected to process the job from the beginning, the image forming apparatus is activated after erasing the work data stored in the work area. If it is selected to process the job from the middle, the work data stored in the work area and the job stored in the job storage area are selected. The image forming apparatus is activated without erasing the information, and in the activation control process, the power is turned off due to the occurrence of an error, and the power is turned on again. The image forming apparatus is configured to delete the work data stored in the work area and the job information stored in the job storage area without causing the user to select whether to return to the state. It is characterized by starting .

One aspect of the present invention includes a nonvolatile memory and a CPU that are readable and writable and that can store data without supplying power, and at least the CPU executes a program. An activation control program that operates in an image forming apparatus that includes a work area that stores work data generated by the control unit and a control unit that is used as a job storage area that stores job information related to image formation processed by the program. When the power is turned on, a selection control process for allowing the user to select whether to restore the image forming apparatus to the previous power-off state or not to restore the previous power-off state is selected. After erasing the work data stored in at least the work area of a non-volatile memory, starting the image forming apparatus Control process, is executed, the selected control process, either discard the job should be processed from the beginning the job, the way the job is returned to the image forming apparatus to the state at power down of the previous If the user selects to discard the job in the activation control process, the work data stored in the work area and the job storage area are selected. When the image forming apparatus is activated after erasing the job information stored in the job and processing is selected from the beginning, the work data stored in the work area is deleted. After that, when the image forming apparatus is started and it is selected that the job is to be processed halfway, the work data stored in the work area and the job are saved. The image forming apparatus is activated without erasing the job information stored in the storage area. In the activation control process, when the power is turned off due to an error and the power is turned on again, the image The work data stored in the work area and the information of the job stored in the job storage area can be obtained without allowing the user to select whether to return the forming apparatus to the state when the power was last turned off. It characterized that you start the image forming apparatus after erasing.

  According to the image forming apparatus, the activation control method, and the activation control program of the present invention, when the storage unit is configured by a nonvolatile memory and the work data and job information related to image formation are stored in the nonvolatile memory, a desired state is obtained. You can start the device.

  The reason is that when the power is turned on, the control unit (startup control program) allows the user to select whether or not to return to the previous power-off state, and does not return to the previous power-off state. This is because at least the work data stored in the work area of the non-volatile memory is erased, and control to start the apparatus is performed.

  As a result, the apparatus can be started up according to the user's intention, and it is possible to prevent a problem that a job relating to image formation is resumed against the user's intention.

1 is a block diagram illustrating a configuration of an image forming apparatus according to an embodiment of the present invention. FIG. 3 is a schematic diagram illustrating a memory map of a non-volatile memory mounted on an image forming apparatus according to an embodiment of the present invention. FIG. 4 is a block diagram illustrating functions executed by a control unit of the image forming apparatus according to an embodiment of the present invention. FIG. 6 is a flowchart illustrating an operation of a control unit of the image forming apparatus according to the embodiment of the present invention. 4 is an example of a screen displayed on the operation display unit of the image forming apparatus according to the embodiment of the present invention.

  As shown in the background art, non-volatile memories such as NVDIMM, MRAM, and ReRAM have been put into practical use as new nonvolatile devices and are now mounted on image forming apparatuses and the like. Image forming devices that store work data and job information generated by executing programs in a high-speed, large-capacity nonvolatile memory can store work data and job information even after the power is turned off. Sometimes it is possible to start up the image forming apparatus in a state when the power is turned off.

  However, it is not always good to start the image forming apparatus in a state when the power is turned off. For example, if the user prints the wrong print job and the user turns off the power of the image forming apparatus to stop printing, it is not preferable that the same print job be resumed after the power is turned on again. The print job should be discarded. On the other hand, if the power to the image forming device is cut off due to a power failure or the like during a print job, or if the user accidentally turns off the power to the image forming device, execute it when the power is turned off and then on again It is desirable to restart the print job that was in progress. As described above, there is a problem that the image forming apparatus cannot be started in a state intended by the user in the control in which the print job is resumed from the middle regardless of the reason that the power is turned off.

  Therefore, in one embodiment of the present invention, the storage means is constituted by a nonvolatile memory, and the nonvolatile memory is used as at least a work area for storing work data and a job storage area for storing job information related to image formation. In the image forming apparatus, a list of job information is checked by checking whether the job information is stored in the nonvolatile memory when necessary so that the activation method of the image forming apparatus can be switched at the user's intention. Is notified to the user, and the user is allowed to select whether or not to restore the image forming apparatus to the previous power-off state. If it is selected not to restore the image forming apparatus to the previous power-off state, the apparatus is activated after erasing at least work data stored in the work area of the nonvolatile memory. Specifically, when the activation method for discarding the job is selected, the apparatus erases both the work data stored in the work area of the nonvolatile memory and the job information stored in the job storage area, and then the apparatus. If the startup method that starts the job from the beginning of the copy is selected, only the work data stored in the work area of the nonvolatile memory is erased, the device is started, and the job is resumed from the middle When the activation method to be selected is selected, the apparatus is activated without deleting both the work data and the job information. Thereby, the image forming apparatus can be activated in a state intended by the user.

  In order to describe the above-described embodiment of the present invention in more detail, an image forming apparatus, a start control method, and a start control program according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram illustrating a configuration of the image forming apparatus according to the present exemplary embodiment, and FIG. 2 is a schematic diagram illustrating a memory map of a nonvolatile memory of the image forming apparatus. FIG. 3 is a block diagram illustrating functions executed by the control unit of the image forming apparatus, and FIG. 4 is a flowchart illustrating the operation of the control unit of the image forming apparatus. FIG. 5 is an example of a screen displayed on the operation display unit.

  An apparatus targeted by the present invention is an image forming apparatus such as an MFP (Multi Function Peripheral). As shown in FIG. 1, the image forming apparatus 10 includes a control unit 11, a nonvolatile memory 14, a network I / F unit 15, a scanner unit 16, a FAX control unit 17, an image forming unit 18, an operation display unit 19, and the like. Composed.

  The control unit 11 includes a CPU (Central Processing Unit) 12 and a nonvolatile memory 13, which are connected via a memory bus. The nonvolatile memory 13 is a storage means that can be read and written and can store data without supplying power, and is composed of NVDIMM, MRAM, ReRAM, and the like. FIG. 2A is a memory map of the nonvolatile memory 13, and a work area or the like is prepared in the nonvolatile memory 13. The CPU 12 controls the overall operation of the image forming apparatus 10 by developing and executing a program (including the activation control program of this embodiment) and data necessary for processing the program in a work area.

  For example, the control unit 11 performs image processing such as edge enhancement processing, smoothing processing, and color conversion processing on image data read from the original by the scanner unit 16 and image data transmitted and received by the FAX control unit 17. Further, a job (PDL (Page Description Language) data described in a page description language such as PJL (Printer Job Language), PS (PostScript), PCL (Printer Control Language), or PDF ( Rasterize each page included in the job for (Portable Document Format) data) to generate image data for each page, and perform the above image processing on the generated image data. Then, the image data after the image processing is output as a video to the image forming unit 18 to execute the printing process.

  Similar to the nonvolatile memory 13, the nonvolatile memory 14 is a storage means that is readable and writable and that can store data without supplying power, and is configured by NVDIMM, MRAM, ReRAM, and the like. FIG. 2B is a memory map of the nonvolatile memory 14. The nonvolatile memory 14 includes a program area, a data area, a job storage area, an error history storage area, and the like. The program area is an area for storing a program other than the program stored in the nonvolatile memory 13. The data area is an area for storing data such as setting information of the image forming apparatus 10. The job storage area is an area for managing job information related to image formation such as a print job, a copy job, and a FAX job that the user wants to execute. The information for managing the job includes job data (for example, image data to be processed), job ID for identifying the job, whether the job has been executed, is being executed, or has not been executed. This includes all data necessary for processing the job, such as a status indicating the status, the number of processed copies, and the number of unprocessed copies. Hereinafter, these are collectively referred to as job information. The error history storage area is an area for managing error information indicating the content of an error that has occurred during the operation of the image forming apparatus 10. The error information includes an error ID for identifying the error.

  The network I / F unit 15 is a modem for connecting to a telephone line, a NIC (Network Interface Card) for connecting to a local communication network such as a LAN (Local Area Network), and the like, and is connected via a telephone line. Communication with a computer apparatus connected via a local area network or FAX communication with a FAX apparatus to be performed.

  The scanner unit (image reading unit) 16 is a unit that optically reads image data from a document placed on a document table, and converts a light source that scans the document and light reflected by the document into an electrical signal. An image sensor such as a CCD (Charge Coupled Devices) and an A / D converter for A / D converting electrical signals are output, and image data read from the document is output to the control unit 11.

  The FAX control unit 17 controls the network I / F unit 15, transmits FAX data to an external FAX device, receives FAX data from the external FAX device, and sends the received FAX data to the control unit 11. Or output.

  The image forming unit 18 (print engine) performs printing processing on paper based on image data output from the control unit 11 as a video. Specifically, in the case of an electrophotographic system, an electrostatic latent image is formed by irradiating light corresponding to an image from an exposure device onto a photosensitive drum charged by a charging device, and toner charged by a developing device is used. The toner image is transferred onto the transfer belt, transferred onto the sheet fed from the sheet feeding unit, and transferred onto the sheet, and the toner image on the sheet is fixed by the fixing device. Perform the process.

  As shown in FIG. 5A, the operation display unit 19 includes a panel 19a in which an operation unit such as a touch sensor made of a grid-like transparent electrode is disposed on a display unit such as an LCD (Liquid Crystal Display), hard keys, and the like. 19b or the like, and displays an operation screen of the image forming apparatus 10 or a screen for presenting a list of job information and options of activation methods to the user as shown in FIG. A signal corresponding to the reception and operation is output to the control unit 11.

  In this embodiment, the image forming apparatus 10 includes the scanner unit 16, the FAX control unit 17, and the image forming unit 18. However, these components are not essential, and the scanner unit 16 and the FAX control unit 17. A single-function printer that does not have a printer, a printer controller 16 that does not have the scanner unit 16 or the FAX control unit 17, and an image forming unit 18, a RIP (Raster Image Processor) controller, or the like. Further, the image forming unit 18 is not necessarily built in the image forming apparatus 10, and the image forming unit 18 may be separated as a separate device. Moreover, it is good also as a structure provided with the speaker, lamp | ramp, etc. for notifying a user of a job information or a starting method with a sound or light.

  Further, the area provided in the nonvolatile memory is not limited to the configuration of FIG. In this embodiment, the nonvolatile memory is provided inside and outside the control unit 11. However, the nonvolatile memory may be provided inside or outside the control unit 11, or the nonvolatile memory 13. A nonvolatile memory other than the nonvolatile memory 14 may be provided. In addition, other storage means such as a register may be provided as long as at least the nonvolatile memory is used as a work area and a job storage area.

  Here, in the configuration using the non-volatile memories 13 and 14 as the work area and the job storage area, the data in the work area and the job information in the job storage area can be saved even after the power is turned off. It becomes possible to start the apparatus in the state at the time of power-off. However, as described above, if the user turns off the power to stop printing, it is not reasonable to restart the job halfway after the power is turned on again. Therefore, with the conventional method of starting up when the power is turned on uniformly when the power is turned off, the image forming apparatus cannot be started up in a state intended by the user.

  Therefore, in this embodiment, as shown in FIG. 3, the control unit 11 functions as a saved information confirmation unit 11a, a selection control unit 11b, an activation control unit 11c, and the like, and activates the image forming apparatus in a state intended by the user. It can be so.

  Specifically, the storage information confirmation unit 11 a confirms whether job information is stored in the nonvolatile memory 14. In this embodiment, since the job storage area is provided in the non-volatile memory 14, it can be confirmed whether or not the job information is stored by referring to the job storage area. Further, the stored information confirmation unit 11a confirms whether error information is stored in the nonvolatile memory 14 as necessary. In the case of the present embodiment, since an error history storage area is provided in the nonvolatile memory 14, it is possible to confirm whether error information is stored by referring to the error history storage area.

  When job information is stored in the nonvolatile memory 14, the selection control unit 11 b allows the user to select whether or not to restore the image forming apparatus 10 to the state at the previous power-off. For example, as shown in FIG. 5 (a), in the hard key 19a, a start instruction key 19c for returning to the power-off state and starting it, and for starting without returning to the power-off state. The activation instruction key 19d is provided, and by operating the activation instruction key 19c or the activation instruction key 19d, the user can select whether or not to return to the power-off state.

  In the above description, the user selects whether to restore the power-off state. For example, the job is discarded (the image forming apparatus 10 is started in the initial state) or the job is processed from the beginning (first The image forming apparatus 10 is started in a state where the job can be started from the above-mentioned section) or the job is processed halfway (the image forming apparatus 10 is started in the state when the power was last turned off, that is, the state when the power was last turned off) The user may be allowed to select a desired activation method from among three or more activation methods. In this case, for example, as shown in FIG. 5B, the user can select a desired activation method by displaying a plurality of activation methods on the panel 19a in a selectable manner.

  In addition, when selecting an activation method, the user can be notified of a list of job information stored in the job storage area. For example, as shown in FIG. 5B, a list of job information stored in the job storage area (here, job ID, status, number of copies, etc.) is displayed on the panel 19a, so that the activation method can be selected. Can be easily. Here, the job notified to the user can include not only a job that is being executed but also an unexecuted job. By including an unexecuted job, for example, if the job has not yet been executed, select a startup method that does not discard the job, and if the job has already been executed on another image forming device or if the job has elapsed, When it is no longer necessary to execute, it is sufficient to select an activation method for discarding the job, and it is possible to select an activation method more in line with the user's intention. Note that the method of notifying the user of job information and the activation method is not limited to the method of displaying on the panel 19a, but may be notified by sound or light.

  The activation control unit 11c activates the image forming apparatus 10 according to the activation method selected by the user. For example, when a startup method for discarding the job and starting the apparatus in the initial state is selected, the work data stored in the work area of the nonvolatile memory 13 and the job storage area of the nonvolatile memory 14 are stored. The device is started after deleting both of the job information. In this case, the CPU 12 develops the program in the nonvolatile memory 13 and executes the program from the beginning. If the activation method for starting the job in a state where the job can be started from the first part is selected, only the work data stored in the work area of the nonvolatile memory 13 is erased, and then the apparatus is activated. In this case, the CPU 12 develops the program in the nonvolatile memory 13 and executes the program again. However, since the job information is stored in the job storage area, the job is started using the job information. In addition, when an activation method for starting a job in a state where the job can be resumed from the middle is selected, the work data stored in the work area of the nonvolatile memory 13 and the job stored in the job storage area of the nonvolatile memory 14 Start the device without erasing both information. In this case, the CPU 12 continuously executes the program expanded in the nonvolatile memory 13 and resumes the job from the continuation using the job information stored in the job storage area.

  Here, when the power is turned on again after a certain time has passed after the power is turned off, it is considered that the user does not intend to resume the job being executed when the power is turned off. Therefore, in such a case, the activation control unit 11c measures the elapsed time from the previous power-off to the power-on again, if necessary, and if the elapsed time exceeds a predetermined threshold, The apparatus after erasing the work data stored in the work area of the non-volatile memory 13 and the job information stored in the job storage area of the non-volatile memory 14 without presenting the user with a list or choice of activation method May be activated. Also, if the power is turned off after an error has occurred and the power is turned on again, it is necessary to check whether the error has been restored. Conceivable. Therefore, in such a case, the activation control unit 11 c adds the error history in addition to the work data saved in the work area of the nonvolatile memory 13 and the job information saved in the job save area of the nonvolatile memory 14. The error information stored in the storage area may be erased and the apparatus may be activated.

  The saved information confirmation unit 11a, the selection control unit 11b, and the activation control unit 11c may be configured as hardware, or the control unit 11 functions as the saved information confirmation unit 11a, the selection control unit 11b, and the activation control unit 11c. It may be configured as an activation control program that causes the CPU 12 to execute the activation control program.

  Hereinafter, the operation of the image forming apparatus 10 configured as described above will be described. The CPU 12 implements the processing of each step shown in the flowchart of FIG. 4 by executing the activation control program stored in the nonvolatile memory 13. FIG. 4 shows control when the image forming apparatus is turned on again.

  When the power switch of the image forming apparatus is turned on and the power is turned on, the control unit 11 (stored information confirmation unit 11a) checks the error history storage area of the nonvolatile memory 14 as necessary (S101). . If error information is stored in the error history storage area (Yes in S102), it is not preferable to resume the job even if the job is being executed when the power is turned off. 11c) deletes the error information in the error history storage area (S103), then the work data stored in the work area of the nonvolatile memory 13 and the job stored in the job storage area of the nonvolatile memory 14 Information is erased (S111). Thereafter, the control unit 11 (activation control unit 11c) activates the image forming apparatus 10. In this case, the CPU 12 develops the program in the nonvolatile memory 13 and executes the program from the beginning.

  On the other hand, when error information is not stored in the error history storage area (No in S102), the control unit 11 (storage information confirmation unit 11a) checks the job storage area of the nonvolatile memory 14 as necessary. (S104). If the job information is not stored in the job storage area (No in S105), the power is not cut off in the middle of the job, so the control unit 11 (startup control unit 11c) controls the image forming apparatus 10. Start normally.

  When the job information is stored in the job storage area (Yes in S105), the control unit 11 (startup control unit 11c) measures the elapsed time from the last power-off to the power-on again as necessary. (S106). If the elapsed time is greater than the predetermined threshold (Yes in S107), the control unit 11 (startup control unit 11c) is stored in the work area of the nonvolatile memory 13 because it is not necessary to restart the job halfway. The image forming apparatus 10 is activated after the working data and the job information stored in the job storage area of the nonvolatile memory 14 are deleted (S111). Also in this case, the CPU 12 develops the program in the nonvolatile memory 13 and executes the program from the beginning.

  If the elapsed time is equal to or less than the threshold (No in S107), the control unit 11 (selection control unit 11b) may list the job information stored in the job storage area of the nonvolatile memory 14 and the start method as necessary. Are displayed on the operation display unit 19 and presented to the user (S108). For example, as shown in FIG. 5B, the job ID, status, number of copies, and the like are displayed as job information, and “discard job”, “start job from the first number of copies” as options for the activation method, “Resume job from midway” is displayed. Here, the job information to be displayed on the operation display unit 19 is a job whose status is “in execution” or “not executed” in the job information stored in the job storage area.

  Here, a case where a list of job information and activation method options are displayed on the operation display unit 19 is shown, but for example, an operation display device (remote terminal) for remotely operating the image forming apparatus 10 is provided. If there is, the control unit 11 (selection control unit 11b) may notify the remote terminal of job information and activation method options, and display these information on the operation display unit of the remote terminal in a selectable manner.

  Then, the control unit 11 (selection control unit 11b) confirms whether the panel 19a and the hard keys 19c and 19d of the operation display unit 19 are operated (S109). Wait with the startup method options displayed. When “Discard Job” is selected by a user operation on the operation display unit 19 (Yes in S110), the control unit 11 (startup control unit 11c) performs work stored in the work area of the nonvolatile memory 13. After erasing the data and job information stored in the job storage area of the nonvolatile memory 14 (S111), the image forming apparatus 10 is activated. Also in this case, the CPU 12 develops the program in the nonvolatile memory 13 and executes the program from the beginning.

  On the other hand, when “Resume a job from midway” is selected by a user operation on the operation display unit 19 (Yes in S112), the control unit 11 (startup control unit 11c) turns off the image forming apparatus 10 before power-off. It starts in the state of. That is, the CPU 12 continuously executes the program developed in the nonvolatile memory 13 and resumes the job using the job information stored in the job storage area. Further, when “Resume a job from the middle” is not selected by the user operation of the operation display unit 19 (“Start job from the first part” is selected) (No in S112), the control unit 11 (startup control unit 11c) deletes only the work data in the work area of the nonvolatile memory 13 (S113), and then starts up the image forming apparatus 10. In this case, the CPU 12 develops the program in the non-volatile memory 13, executes the program again, and starts the job from the first part using the job information stored in the job storage area.

  In the above flow, it is determined whether error information is stored in the error information storage area of the nonvolatile memory 14 (S102 and S103), and whether the job information is stored in the job information storage area of the nonvolatile memory 14 is determined. (S104 and S105) The determination (S106 and S107) whether the elapsed time from power-off to power-on exceeds a threshold is not essential and can be omitted.

  In this way, when the power is turned on again, the user selects whether to restore the power-off state, and the work data stored in the work area of the nonvolatile memory 13 and the nonvolatile data are selected according to the user's selection. The job information stored in the job storage area of the volatile memory 14 is deleted before starting (destroying the job and starting), or only the work data stored in the work area of the nonvolatile memory 13 is deleted. To start the device by either starting the job (starting the job from the first part) or starting without deleting both the work data and the job information (resuming the job halfway) The image forming apparatus can be activated as intended by the user.

  If the program counter is also held in the nonvolatile memory 102, the interrupted program is resumed immediately after the power is turned on (before the operation control program of this embodiment is executed). Therefore, when the power is turned on, an interrupt with a high priority is generated without restarting the interrupted program, and the operation control program of this embodiment is executed. As a method for executing this operation control program, a configuration using a start-up CPU (such as a sub CPU) in addition to an interrupt at power-on is also conceivable. In this case, the operation control program may be operated by the activation-dedicated CPU after the power is turned on, and the program interrupted by the main CPU may be resumed after the operation control program ends.

  In addition, this invention is not limited to the said Example, The structure and control can be changed suitably, unless it deviates from the meaning of this invention.

  For example, in the above-described embodiment, the image forming apparatus is exemplified as the control target. However, the control target is not limited to the image forming apparatus, and the present invention is applicable to any apparatus that uses a nonvolatile memory as a work area and a job storage area. The operation control method can be similarly applied.

  The present invention can be used for a device whose storage means is a nonvolatile memory, a start control method for controlling start of the device, a start control program, and a recording medium on which the start control program is recorded.

DESCRIPTION OF SYMBOLS 10 Image forming apparatus 11 Control part 11a Saved information confirmation part 11b Selection control part 11c Start-up control part 12 CPU
DESCRIPTION OF SYMBOLS 13 Nonvolatile memory 14 Nonvolatile memory 15 Network I / F part 16 Scanner part 17 FAX control part 18 Image formation part 19 Operation display part 19a Panel 19b Hard key 19c, 19d Start instruction key

Claims (13)

A non-volatile memory that is readable and writable and capable of storing data without supplying power and a CPU (Central Processing Unit) are provided. The non-volatile memory is generated when at least the CPU executes a program. An image forming apparatus comprising: a work area for storing work data; and a control unit used as a job storage area for storing job information related to image formation processed by the program,
The controller is
A selection control unit that allows the user to select whether to restore the image forming apparatus to the state at the previous power-off when the power is turned on;
An activation control unit that activates the image forming apparatus after erasing at least the work data stored in the work area of the non-volatile memory when it is selected not to return to the previous power-off state. and, the possess,
The selection control unit either discards the job, processes the job from the beginning, or returns the image forming apparatus to the state when the power was last turned off and processes the job from the middle. Or let the user select
When the activation control unit selects to discard the job, the activation control unit erases the work data stored in the work area and the job information stored in the job storage area, and then deletes the job. When the image forming apparatus is activated and it is selected to process the job from the beginning, the work data stored in the work area is erased, the image forming apparatus is activated, and the job is in progress. And starting the image forming apparatus without erasing the work data stored in the work area and the job information stored in the job storage area.
When the power is turned off due to the occurrence of an error, and the power is turned on again, the activation control unit does not allow the user to select whether to restore the image forming apparatus to the state when the power was last turned off, Erasing the work data stored in the work area and the job information stored in the job storage area, and then starting the image forming apparatus ;
An image forming apparatus. The control unit further includes:
A storage information confirmation unit for confirming whether the job information is stored in the job storage area of the nonvolatile memory when the power is turned on;
The selection control unit allows the user to select whether to restore the image forming apparatus to the previous power-off state when the job information is stored in the job storage area;
The image forming apparatus according to claim 1. The selection control unit notifies the user of a list of the jobs stored in the job storage area of the nonvolatile memory;
The image forming apparatus according to claim 2. The selection control unit notifies the user of a list of jobs being executed and unexecuted jobs when the power is turned off, among the jobs stored in the job storage area of the nonvolatile memory.
The image forming apparatus according to claim 3. The image forming apparatus includes an operation display unit,
The selection control unit displays the job list on the operation display unit;
The image forming apparatus according to claim 3, wherein the image forming apparatus is an image forming apparatus. The activation control unit measures an elapsed time after the power is turned off until the power is turned on again. If the elapsed time exceeds a predetermined threshold, the image forming apparatus is turned off the previous time. The image forming apparatus after erasing the work data stored in the work area and the job information stored in the job storage area without causing the user to select whether to restore the current state. Start up,
The image forming apparatus according to claim 1, wherein the image forming apparatus is an image forming apparatus.   A non-volatile memory that can read and write and can store data without supplying power and a CPU are provided, and the non-volatile memory stores at least work data generated when the CPU executes a program. An activation control method in an image forming apparatus used as a job storage area for storing work area and job information related to image formation processed by the program,
  A selection control process for causing the user to select whether to restore the image forming apparatus to the state when the power was last turned off when the power is turned on;
  When it is selected not to return to the state at the time of the previous power-off, the start control process for starting the image forming apparatus after erasing at least the work data stored in the work area of the nonvolatile memory And run
  In the selection control process, either the job is discarded, the job is processed from the beginning, or the image forming apparatus is returned to the previous power-off state and the job is processed halfway. Or let the user select
  In the activation control process, when it is selected to discard the job, the work data stored in the work area and the job information stored in the job storage area are erased, and then the job control area is deleted. When the image forming apparatus is activated and it is selected to process the job from the beginning, the work data stored in the work area is erased, the image forming apparatus is activated, and the job is in progress. And starting the image forming apparatus without erasing the work data stored in the work area and the job information stored in the job storage area.
  In the activation control process, when the power is turned off due to the occurrence of an error and the power is turned on again, without causing the user to select whether to restore the image forming apparatus to the state at the time of the previous power-off, Erasing the work data stored in the work area and the job information stored in the job storage area, and then starting the image forming apparatus;
  An activation control method characterized by the above.   When the power is turned on, a storage information confirmation process for confirming whether the job information is stored in the job storage area of the nonvolatile memory is further executed.
  In the selection control process, when the job information is stored in the job storage area, the user is allowed to select whether to restore the image forming apparatus to the previous power-off state.
  The start-up control method according to claim 7. In the selection control process, the user is notified of a list of the jobs stored in the job storage area of the nonvolatile memory.
The startup control method according to claim 8, wherein: In the selection control process, the job stored in the job storage area of the nonvolatile memory is notified to the user of a list of jobs being executed and unexecuted jobs when the power is turned off.
The activation control method according to claim 9. The image forming apparatus includes an operation display unit,
In the selection control process, a list of the jobs is displayed on the operation display unit.
The start control method according to claim 9 or 10, wherein In the activation control process, an elapsed time from when the power is turned off until the power is turned on again is measured, and when the elapsed time exceeds a predetermined threshold, the image forming apparatus is turned off the previous time. The image forming apparatus after erasing the work data stored in the work area and the job information stored in the job storage area without causing the user to select whether to restore the current state. Start up,
The start control method according to any one of claims 7 to 11, wherein   A non-volatile memory that can read and write and can store data without supplying power and a CPU are provided, and the non-volatile memory stores at least work data generated when the CPU executes a program. An activation control program that operates in an image forming apparatus that includes a work area and a control unit that is used as a job storage area for storing job information related to image formation processed by the program,
  In the control unit,
  A selection control process for allowing the user to select whether to restore the image forming apparatus to the state when the power was last turned off when the power is turned on;
  When it is selected not to return to the state at the time of the previous power-off, the start control process for starting the image forming apparatus after erasing at least the work data stored in the work area of the nonvolatile memory , Execute
  In the selection control process, either the job is discarded, the job is processed from the beginning, or the image forming apparatus is returned to the previous power-off state and the job is processed halfway. Or let the user select
  In the activation control process, when it is selected to discard the job, the work data stored in the work area and the job information stored in the job storage area are erased, and then the job control area is deleted. When the image forming apparatus is activated and it is selected to process the job from the beginning, the work data stored in the work area is erased, the image forming apparatus is activated, and the job is in progress. And starting the image forming apparatus without erasing the work data stored in the work area and the job information stored in the job storage area.
  In the activation control process, when the power is turned off due to the occurrence of an error and the power is turned on again, without causing the user to select whether to restore the image forming apparatus to the state at the time of the previous power-off, Erasing the work data stored in the work area and the job information stored in the job storage area, and then starting the image forming apparatus;
  An activation control program characterized by the above.

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