JP2007030274A - Image processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image processor which suppresses consumption of power, while highly convenient for a user. <P>SOLUTION: When a low power consumption mode is set, a CPU 22 stops displaying of an operation screen on a display device 12 and controlling of driving of a device, and a CPU 42 stops its operation. When the mode is moved to a normal drive mode, the CPU 42 becomes in a state of performing the controlling of displaying of the operation screen on the display device 12 before the CPU 22 does. Until the CPU 42 starts the controlling of displaying of the operation screen by the CPU 22 on the display device 12, the CPU 42 displays the operation screen on the display device 12 according to screen information stored in an NVRAM 50, and makes control for setting an operational condition designated by operational condition information input through an operation input section 14, to a setting section of the operation screen. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a device that executes predetermined image processing, and reduces a normal drive mode for supplying a normal supply amount of drive power to the device and a drive power supply amount to the device from the normal drive mode. The present invention relates to an image processing apparatus including a low power consumption mode for reducing power consumption.

  In recent years, there has been a growing demand for energy savings in information processing equipment from the viewpoint of environmental protection. The Energy Star program promoted by the US Environmental Protection Agency and the energy conservation law in Japan (the use of energy) Energy Conservation Standards are established by the Law Concerning the Rationalization of Energy).

  For this reason, image processing apparatuses such as digital multi-function peripherals and printers are provided with the normal drive mode for supplying a normal supply amount of drive power to various devices that are provided inside and perform image processing. A low power consumption mode (so-called sleep mode) that reduces the power consumption by stopping the supply of the drive power or reducing the supply amount of the drive power, and saving power during a standby period in which image processing is not performed Yes.

  In addition to the above devices, this type of image processing apparatus further promotes lower power consumption. In addition to the above devices, the CPU (central processing unit), RAM, and HDD (hard disk drive) control the overall operation of the apparatus. The necessity to reduce the power consumption of the controller comprised by these etc. is increasing.

FIG. 6 shows a normal drive from the power consumption and the low power consumption mode when the following three types of low power consumption modes of the method A, the method B, and the method C are applied for the purpose of reducing the power consumption of the controller. An example of the relationship with the transition time (return time) until transition to mode (return) is shown.
Method A: Stop supplying the clock to the controller.
Method B: Information necessary for returning to the normal drive mode is stored in the RAM, and drive power supply to the devices other than the RAM and some devices necessary for the mode transition is stopped.
Method C: Information necessary for returning to the normal drive mode is stored in the HDD, and the drive power supply to the devices other than the HDD and some devices necessary for the mode transition is stopped.

  In this case, as shown in FIG. 6, the power consumption in each method is method A> method B> method C, but the transition time in each method is method A <method B <method C, and the consumption of the controller As the power is reduced, the transition time from the low power consumption mode to the normal drive mode becomes longer.

  However, during this transition time, since the controller is not completely in a normal driving state, the controller cannot detect an operation on the image processing apparatus from the user and cannot accept an instruction operation from the user. Therefore, the lower the power consumption of the controller in the applied low power consumption mode, the longer the transition time. During this transition time, the user cannot perform an instruction operation, and there is a problem that the convenience for the user is low. It was.

Therefore, as a technique that can be applied to solve this problem, Patent Document 1 discloses that the transition time from the low power consumption mode to the normal drive mode is shorter than that of the main CPU in the image processing apparatus in addition to the main CPU. A technique is disclosed in which a sub CPU is provided, and when the main CPU is difficult to control the display device (LCD), the sub CPU controls the display device to display a predetermined screen (initial screen or error screen).
JP2003-141501A

  However, with the technique disclosed in Patent Document 1, it is only possible to display a predetermined screen on the display device during the transition time, the controller cannot accept an instruction operation from the user, and the user instructs Since the operation cannot be performed, it cannot be said that the convenience for the user can be improved.

  SUMMARY An advantage of some aspects of the invention is that it provides an image processing apparatus that is highly convenient for a user while reducing power consumption.

  In order to achieve the above object, the invention described in claim 1 includes a device that executes predetermined image processing, and a normal drive mode that supplies a normal supply amount of drive power to the device, and drive to the device. An image processing apparatus having a low power consumption mode for reducing power consumption by reducing the amount of power supplied from the normal drive mode, and an operation screen having a setting unit for setting processing conditions relating to the image processing Display means for displaying, input means for inputting processing condition information indicating the processing conditions to be set in the setting portion of the operation screen displayed on the display means, and when in the normal drive mode, Control the drawing of the operation screen on the display means and the drive of the device, and the drawing of the operation screen on the display means when the mode is shifted to the low power consumption mode. First control means for stopping the drive control of the vise, storage means for storing screen information necessary for drawing the operation screen when the operation mode is shifted to the low power consumption mode, and when the operation mode is shifted to the low power consumption mode When the operation is stopped and the mode shifts to the normal drive mode, the display of the operation screen on the display means can be controlled earlier than the first control means, and the display means by the first control means The process of displaying the operation screen on the display unit based on the screen information stored in the storage unit and inputting from the input unit until the drawing control of the operation screen is started. Second control means for performing control to set processing conditions indicated by the condition information in the setting unit of the operation screen.

  According to the first aspect of the present invention, an operation screen having a setting unit for setting processing conditions relating to image processing is displayed by the display unit, and an input unit displays the operation screen set on the display unit. Processing condition information indicating a processing condition to be set is input. The display means includes a display such as a CRT display, a plasma display, an organic EL display, and a liquid crystal display. Input by the input means includes input from a touch panel, a keyboard, a pointing device, and the like.

  According to the present invention, the first control means controls the drawing of the operation screen on the display means and the drive of the device when the normal drive mode is set, and the display means when the mode is shifted to the low power consumption mode. The operation screen drawing and device drive control are stopped, and screen information necessary for drawing the operation screen when the mode is shifted to the low power consumption mode is stored in the storage means. The second control unit stops operating when the low power consumption mode is shifted to, and the transition of the operation screen onto the display unit is controlled earlier than the first control unit when the normal driving mode is shifted. The operation screen is displayed on the display unit based on the screen information stored in the storage unit and input until the first control unit starts to control the drawing of the operation screen on the display unit by the first control unit. Control is performed to set the processing condition indicated by the processing condition information input from the means in the setting section of the operation screen.

  As described above, according to the first aspect of the present invention, when the low power consumption mode is set, the first control unit stops the drawing of the operation screen on the display unit and the drive control of the device and the second control. Since the means stops operating, the power consumption of the controller can be reduced.

  Further, when the second control means shifts to the normal drive mode, it becomes possible to control the drawing of the operation screen on the display means earlier than the first control means, and the second control means displays the display means by the first control means. Until the control of the drawing of the operation screen on the screen is started, the operation screen is displayed on the display means based on the screen information stored in the storage means, and the processing conditions indicated by the processing condition information input from the input means Is controlled in the setting unit of the operation screen, and until the control by the first control unit is started, the user inputs the input unit to the setting unit of the operation screen displayed by the control of the second control unit. Since the processing conditions can be set, the convenience for the user can be improved.

  Further, by setting the first control means as a CPU having a higher processing capability than the second control means, complicated screen drawing can be performed in the normal drive mode.

  According to the present invention, as in the invention described in claim 2, after the control of drawing the operation screen is started by the second control means, the control of drawing the operation screen is started by the first control means. Until the storage unit stores the processing condition information input from the input unit until the first control unit starts to control the drawing of the operation screen. It is preferable that the display unit displays the operation screen that is read from the storage unit and the processing condition indicated by the processing condition information is set in the setting unit. The storage means for storing the screen information and the processing condition information may be physically different storage means.

  According to a third aspect of the present invention, as in the third aspect of the present invention, the processing condition set in the setting unit of the operation screen is displayed in the storage unit together with the screen information when the mode is shifted to the low power consumption mode. Processing condition information is further stored, and when the second control unit shifts to the normal drive mode, the processing condition information is based on the screen information and the processing condition information stored in the storage unit. It is preferable to display the operation screen in which the processing condition indicated by is set in the setting unit on the display means. The storage means for storing the screen information and the processing condition information may be physically different storage means.

  In the present invention, it is preferable that the storage means is nonvolatile as in the invention described in claim 4.

  According to a fourth aspect of the present invention, as in the fifth aspect of the present invention, the apparatus further includes a power-off mode for turning off the power of the apparatus body, and the storage means shifts to the power-off mode. Screen information necessary for drawing the operation screen is stored, and the second control means transfers the display means to the display means by the first control means when the power of the image processing apparatus is turned on. Until the drawing control of the operation screen is started, the operation screen may be displayed on the display unit based on the screen information stored in the storage unit.

  As described above, according to the present invention, when the low power consumption mode is set, the first control unit stops the drawing of the operation screen on the display unit and the drive control of the device and the second control unit. Since the operation is stopped, the power consumption of the controller can be reduced.

  Further, when the second control means shifts to the normal drive mode, it becomes possible to control the drawing of the operation screen on the display means earlier than the first control means, and the second control means displays the display means by the first control means. Until the control of the drawing of the operation screen on the screen is started, the operation screen is displayed on the display means based on the screen information stored in the storage means, and the processing conditions indicated by the processing condition information input from the input means Is controlled in the setting unit of the operation screen, and until the control by the first control unit is started, the user inputs the input unit to the setting unit of the operation screen displayed by the control of the second control unit. Since the processing conditions can be set from the above, it has an excellent effect that the convenience for the user can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, the case where the present invention is applied to an image processing apparatus configured as a digital multi-function peripheral will be described.

  FIG. 1 shows a functional block diagram of the image processing apparatus 10.

  As shown in the figure, the image processing apparatus 10 according to the present embodiment includes a display device 12 that displays an operation screen having a setting unit in which various processing conditions relating to image processing are set, and various types of user input. An operation input unit 14 such as an operation panel for inputting an instruction, a first controller 20 that performs control relating to image processing, and an operation screen for the display device 12 while the first controller 20 cannot control the display device 12. A second controller 40 that controls display and a supply power control unit 70 that is connected to a power source (not shown) and supplies driving power to each device included in the image processing apparatus 10 are provided.

  The supplied power control unit 70 transforms the power supplied from the power source into a predetermined voltage and supplies the first controller 20 and the second controller 40 with predetermined drive power.

  The first controller 20 includes a CPU (central processing unit) 22 that controls the operation of the entire apparatus, an image input unit 24 that optically reads an image of a document placed on a document placement table (not shown), and an image input unit 24. A RAM 26 that temporarily stores the image data read in step S3, and an image output unit 28 that stores recording papers of a plurality of sizes and records a toner image on a sheet of a size specified based on the image data stored in the RAM 26. A control program for controlling the entire apparatus executed by the CPU 22, an image size conversion processing program for enlarging / reducing the image size of the image data, a first controller low power consumption mode transition processing program to be described later, and a first controller normal drive mode ROM 30 in which various programs including a migration processing program, various parameters, and the like are stored in advance. There.

  On the other hand, the second controller 40 includes a CPU 42 that controls operations related to the second controller 40, a RAM 44 that temporarily stores various data, a display control unit 46 that controls display of various information on the display device 12, and a CPU 42. ROM 48 in which various programs including a control program for controlling second controller 40 to be executed, a second controller low power consumption mode transition processing program to be described later, and a second controller normal drive mode transition processing program are stored, and flash memory An NVRAM (Non Volatile RAM) 50 composed of a non-volatile memory such as a non-volatile memory, and an input / output port 52 through which various information is input when an operation is performed from the operation input unit 14.

  The CPU 22, the image input unit 24, the RAM 26, the image output unit 28, and the ROM 30 of the first controller 20 are connected to one another via a bus BUS1. Therefore, the CPU 22 can perform control of image reading operation by the image input unit 24, access to the RAM 26 and ROM 30, and control of operation of the image output unit 28, respectively.

  On the other hand, the CPU 42, RAM 44, display control unit 46, ROM 48, NVRAM 50, and input / output port 52 of the second controller 40 are connected to each other via a bus BUS2. Therefore, the CPU 42 accesses the RAM 44, the ROM 48, and the NVRAM 50, grasps the content of the instruction by the user's operation on the operation input unit 14, and displays various information on the display device 12 by controlling the display control unit 46. Each can be done.

  Furthermore, the bus BUS1 of the first controller 20 and the bus BUS2 of the second controller 40 are connected via the bus bridge 60, and the first controller 20 and the second controller 40 are mutually accessible via the bus bridge 60. It has become.

  Accordingly, the CPU 22 of the first controller 20 receives access to the RAM 44, ROM 48, and NVRAM 50 of the second controller 40 via the bus bridge 60 and receives information input from the operation input unit 14 and input via the bus bridge 60. By doing so, it is possible to grasp the content of the instruction by the user's operation on the operation input unit 14 and display various information on the display device 12 by controlling the display control unit 50.

  On the other hand, the CPU 42 of the second controller 40 can access the RAM 26 and ROM 30 of the first controller 20 via the bus bridge 60.

  By the way, the image processing apparatus 10 according to the present embodiment supplies normal driving power to the first controller 20 and the second controller 40 to enable execution of image processing for recording an image on a recording sheet. A mode for controlling mode transition, including a mode and a low power consumption mode in which the supply of drive power to the first controller 20 and the second controller 40 is stopped to reduce power consumption compared to the normal drive mode. A transition control unit 72 is provided. Note that the power supply stop in this case does not mean that the power supply is completely stopped, but means that the power supply is stopped except for some devices required for mode transition.

  The mode transition control unit 72 is connected to the operation input unit 14, the input / output port 52, and the supply power control unit 70, and receives a transition instruction signal instructing transition from the second controller 40 to a low power consumption mode described later. When received, it outputs a power supply stop instruction signal for instructing supply power control unit 70 to stop power supply to supply power control unit 70.

  When the power supply control unit 70 receives the power supply stop instruction signal, the power supply control unit 70 stops supplying power to the first controller 20 and the second controller 40.

  On the other hand, the mode transition control unit 72 supplies power when the operation input unit 14 is operated in the low power consumption mode in which the supply of drive power to the first controller 20 and the second controller 40 is stopped. A power supply start instruction signal that instructs the control unit 70 to resume power supply is output to the power supply control unit 70, and then a transition instruction that instructs the first controller 20 and the second controller 40 to shift to the normal driving force mode. Output a signal.

  When receiving the power supply start instruction signal, the supply power control unit 70 starts supplying drive power to the first controller 20 and the second controller 40.

  When the CPU 44 of the second controller 40 receives a transition instruction signal for instructing a transition to the normal driving force mode via the input / output port 52, the CPU 44 performs a second controller normal driving mode transition process to be described later.

  When the CPU 22 of the first controller 20 receives a transition instruction signal for instructing transition to the normal driving force mode via the second controller 40 and the bus bridge 60, the CPU 22 performs a first controller normal driving mode transition process to be described later. . For example, a PME signal (Power Management Event) defined by the PCI bus can be used for transmission of the transition instruction signal via the bus bridge 60.

  In this embodiment, since the CPU 22 controls the operation of the entire apparatus including the image input unit 24 and the image output unit 28, it is necessary to use a CPU with a high processing speed. Since only the display of the operation screen at the time of switching from the low power consumption mode to the normal drive mode is controlled in the controller normal drive mode transition process, an inexpensive CPU having a lower processing speed than the CPU 22 may be used. In the present embodiment, the processing speed of the CPU 42 is set slower than that of the CPU 22, thereby suppressing an increase in cost of the image processing apparatus 10 even when the present invention is applied.

Next, the operation of the image processing apparatus 10 according to the present embodiment will be described. First, a document image is read by the image input unit 24 of the image processing apparatus 10, and the read image data is recorded on a recording sheet by the image output unit 28. The flow of operation when doing this will be briefly described.

  The image processing apparatus 10 draws an operation screen (not shown) displayed on the display device 12 by the CPU 22 of the first controller 20 controlling the display control unit 46 via the bus bridge 60 in the normal drive mode. I have control.

  In the present embodiment, there is a setting unit for setting the magnification for enlarging or reducing the image read by the image input unit 24 on the operation screen and recording it on the recording paper and the size of the recording paper to be recorded. The user can set the magnification and the size of the recording paper to be recorded. The CPU 22 is operated by the user to set the magnification and the size of the recording paper to be recorded on the operation input unit 14, and is transmitted from the operation input unit 14, via the input / output port 52 and the bus bridge 60. A processing condition is set in the setting part of the operation screen according to the processing condition information indicating the received processing condition.

  The user places a document image on a document placement table (not shown) of the image input unit 24, sets the magnification and the size of the recording paper to be recorded from the operation input unit 14 to the setting unit of the operation screen, and instructs to start recording. Is performed, the CPU 22 of the first controller 20 controls the image input unit 24 to read the original image, and temporarily stores the read image data in the RAM 26.

  Then, the CPU 22 executes the image size conversion processing program, converts the image indicated by the image data stored in the RAM 26 with the magnification set in the setting unit of the operation screen displayed on the display device 12, and converts the converted image. The image output unit 28 is controlled based on the data, and control is performed to record an image on a recording sheet having a recording target size set in the setting unit of the operation screen.

  By the way, the CPU 22 of the first controller 20 executes a first controller low power mode transition process program, which will be described later, when a predetermined drive power supply is performed from the supply power control unit 70 and the control program is started. When no operation is performed on the input unit 14 and no information is received from the operation input unit 14 for a predetermined time (in this embodiment, 10 minutes), a transition instruction signal for instructing transition to the low power consumption mode is sent to the bus bridge 60. And output to the mode transition control unit 72 via the input / output port 52.

  Next, the flow of processing of the first controller low power mode transition processing program according to the present embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing a flow of processing of the first controller low power mode transition processing program executed by the CPU 22 at this time, and the program is stored in a predetermined area of the ROM 30 in advance. In the first controller low power mode transition processing program, the elapsed time t is provided as a variable for measuring the time after the last operation on the operation input unit 14, and the elapsed time t is previously stored. It has been initialized to zero.

  In step 100 of the figure, it is determined whether or not an operation has been performed on the operation input unit 14 based on whether or not information has been received from the operation input unit 14. If the determination is affirmative, the process proceeds to step 102. If the determination is negative, the routine proceeds to step 104. In step 102, the elapsed time t is initialized to zero in order to measure the time after the time point when the operation is performed on the operation input unit 14 by the user.

  On the other hand, in step 104, it is determined whether or not the elapsed time t has passed a predetermined time (10 minutes in the present embodiment). If the determination is affirmative, the process proceeds to step 106, and the determination is negative. Adds the processing time from step 100 to step 104 to the elapsed time t, proceeds to step 100, and continues counting the elapsed time t.

  In step 106, a low power consumption mode transition preparation command is transmitted to the second controller 40.

  When receiving the low power consumption mode transition preparation command, the CPU 42 of the second controller 40 executes a second controller low power mode transition processing program (details will be described later).

  In step 108, screen information necessary for drawing the operation screen on the display device 12 and processing condition information indicating processing conditions set in the setting unit by the user are transmitted to the second controller 40. That is, the operation screen of the present embodiment is accommodated in the image output unit 28 because the size of the recording sheet to be recorded can be selected from the recording sheets of the size accommodated in the image output unit 28. The recording paper size information and the like are transmitted as screen information. Here, the case where the setting unit for setting the magnification and the size of the recording paper to be recorded has been described on the operation screen, but the present invention is not limited to this, and the image performed by the image processing apparatus A setting unit may be provided as appropriate according to the process, and screen information necessary for drawing the operation screen may be transmitted.

  In the next step 110, a transition instruction signal for instructing the transition to the low power consumption mode is transmitted to the mode transition control unit 72, and the first controller low power mode transition process is terminated.

  Thereby, the mode transition control unit 72 outputs a power supply stop instruction signal for instructing the supply power control unit 70 to stop power supply to the supply power control unit 70, and the supply power control unit 70 receives the power supply stop instruction signal. Since the supply of drive power to the first controller 20 and the second controller 40 is stopped, the power consumption of the image processing apparatus 10 is reduced.

  Next, the flow of processing of the second controller low power mode transition processing program executed by the CPU 42 of the second controller 40 when the low power consumption mode transition preparation command is received will be described with reference to FIG. To do. The program is stored in advance in a predetermined area of the ROM 48.

  In step 150 in the figure, the screen information and processing condition information transmitted from the first controller 20 in step 108 of the first controller low power mode transition process described above are received.

  In the next step 152, the received screen information and processing condition information are stored in a predetermined area of the nonvolatile NVRAM 50, and the second controller low power mode transition process is terminated.

  As described above, by storing the screen information and the processing condition information in the NVRAM 50, it is possible to keep the screen information and the processing condition information even when the supply of the driving power to the second controller is stopped.

  Next, in the low power consumption mode in which the supply of drive power to the first controller 20 and the second controller 40 is stopped, the flow of operations when the user performs an operation on the operation input unit 14 will be briefly described. To do.

  When the user performs an operation on the operation input unit 14, information corresponding to the operated button is transmitted from the operation input unit 14 to the mode transition control unit 72.

  When the mode transition control unit 72 receives information from the mode transition control unit 72, the mode transition control unit 72 outputs a power supply start instruction signal for instructing the supply power control unit 70 to resume the supply of drive power to the supply power control unit 70.

  Thereby, the supply power control part 70 will start supply of the drive power to the 1st controller 20 and the 2nd controller 40, if a power supply start instruction signal is received.

  In addition, the mode transition control unit 72 outputs the power supply start instruction signal, and after the power supply of the first controller 20 and the second controller 40 is resumed, the first controller 20 and the second controller 40 are set to the normal driving force mode. A transition instruction signal for instructing the transition is output.

  When receiving the transition instruction signal, the first controller 20 executes a first controller normal drive mode transition process, and when receiving the transition instruction signal, the second controller 40 executes a second controller normal drive mode transition process.

  Next, the flow of processing of the second controller normal drive mode transition processing program executed by the CPU 42 of the second controller 40 when the above-described transition instruction signal is received will be described with reference to FIG. The program is stored in advance in a predetermined area of the ROM 48.

  In step 200 in the figure, screen information and processing condition information stored in a predetermined area of the NVRAM 50 are read out, and in the next step 202, the display controller 46 is controlled based on the screen information to operate the operation screen of the display device 12. Is displayed, and the processing condition of the setting unit is set based on the processing condition information to restore the display state in the normal drive mode before the low power consumption mode is entered.

  In the next step 204, reception of a display control transition instruction signal transmitted from the first controller 20, which will be described later, is waited. When a display control transition instruction signal is received, the process proceeds to step 206. Note that. While waiting for reception of the display control transition instruction signal, the CPU 42 transmits the operation input unit 14 to the input / output port 52 when the user performs an operation for changing the processing condition of the setting unit of the operation screen from the operation input unit 14. The processing conditions received via the are set and displayed in the setting section of the operation screen. Further, the CPU 42 stores in the RAM 44 processing condition information indicating processing conditions and recording start instruction information received while waiting for reception of the display control transition instruction signal.

  In step 206, the processing condition information and the instruction information stored in the RAM 44 are transmitted to the first controller 20, and the second controller normal drive mode transition process is terminated.

  Next, referring to FIG. 5, the flow of processing of the first controller normal drive mode transition processing program executed by the CPU 22 of the first controller 20 when the transition instruction signal described above is received from the mode transition control unit 72. explain. The program is stored in advance in a predetermined area of the ROM 30.

  In step 250 of the figure, adjustment processing (calibration) of each device provided in the image input unit 24 and the image output unit 28 is performed, and information on the size of the recording paper stored in the image output unit 28 is acquired. To do. In this adjustment process, a predetermined adjustment time is required because optical adjustment of devices provided in the image input unit 24 and the image output unit 28, correction of the position of the movable unit, and the like are performed.

  In the next step 252, when the adjustment process is completed, a display control transition instruction signal indicating an instruction to shift the control of drawing the operation screen on the display device 12 to the CPU 22 of the first controller 20 is transmitted to the second controller 40. Thereby, step 204 of the second controller normal drive mode transition process executed by the CPU 42 of the second controller 40 described above is affirmed, and processing condition information and instruction information are transmitted in step 206 described above.

  In the next step 254, processing condition information and instruction information transmitted from the second controller 40 is received. In step 256, the CPU 22 controls the display control unit 46 via the bus bridge 60 to operate the display device 12. Switch to control screen drawing. The user displays the operation screen in which the processing condition indicated by the processing condition information received from the second controller 40 is set in the setting unit and controls the CPU 42 of the second controller 40 to display the operation screen. The set display state is restored, and the first controller normal drive mode transition process is terminated.

  Thereafter, the CPU 22 of the first controller 20 changes the setting of the setting unit on the operation screen according to the processing condition information transmitted from the operation input unit 14 and received via the input / output port 52 and the bus bridge 60. If the information received from the second controller 40 includes recording start instruction information, the CPU 22 reads the document image and records the image on a recording sheet.

  As described above, according to the present embodiment, the display means (here, the display device 12) displays the operation screen including the setting unit in which the processing conditions relating to the image processing are set, and the input means (here Then, processing condition information indicating processing conditions to be set in the setting section of the operation screen displayed on the display means is input from the operation input section 14). The first control means (here, the CPU 22) controls the drawing of the operation screen on the display means and the drive of the device when the normal drive mode is set, and the display means when the mode is shifted to the low power consumption mode. The screen information necessary for drawing the operation screen when the operation screen drawing and device drive control are stopped and the mode is changed to the low power consumption mode is stored in the storage means (in this case, the NVRAM 50).

  Then, the second control means (here, the CPU 42) stops the operation when the mode is shifted to the low power consumption mode, and the operation screen to the display means is earlier than the first control unit when the mode is shifted to the normal drive mode. The operation screen is displayed on the display means based on the screen information stored in the storage means until the drawing control is enabled and the drawing control of the operation screen on the display means is started by the first control means. In addition, since the control is performed to set the processing condition indicated by the processing condition information input from the input means in the setting unit of the operation screen, it is possible to improve the convenience for the user while reducing the power consumption.

  In addition, according to the present embodiment, the second control unit starts from the start of the operation screen drawing control by the second control unit to the start of the operation screen drawing control by the first control unit. The processing condition information input from the input means is controlled to be stored in the storage means (here, the RAM 44), and the first control means reads the processing condition information from the storage means when the drawing control of the operation screen is started. Since the operation screen in which the processing condition indicated by the processing condition information is set in the setting unit is displayed on the display unit, the drawing control of the operation screen is transferred from the second control unit to the first control unit. However, the processing conditions set in the setting unit of the operation screen can be taken over from the start of the control by the second control means to the start of the control by the first control means.

  Further, according to the present embodiment, the storage means (here, NVRAM 50) stores the processing condition information indicating the processing conditions set in the setting section of the operation screen when the mode is shifted to the low power consumption mode together with the screen information. The second control means displays the operation screen in which the processing conditions indicated by the processing condition information are set in the setting unit based on the screen information and the processing condition information stored in the storage means. Since the information is displayed on the means, the setting information of the setting unit in the normal drive mode before the low power consumption mode can be set continuously.

  Further, according to the present embodiment, since the storage means is nonvolatile, screen information and setting information can be held even when the supply of drive power is stopped, and the normal drive mode The state of the operation screen before entering the low power consumption mode when shifting to can be displayed.

  In the present embodiment, the case of shifting between the normal drive mode and the low power consumption mode has been described. However, the present invention is not limited to this, and for example, the power of the image processing apparatus 10 is turned off. The NVRAM 50 further stores screen information necessary for displaying the operation screen when shifting from the normal driving mode or the low power consumption mode to the power-off mode. The CPU 42 displays the operation screen based on the screen information stored in the NVRAM 50 until the next control of the display device 12 via the display control unit 46 is started by the CPU 22 when the image processing apparatus is turned on next time. It is good also as what controls the display apparatus 12 via the display control part 46 so that it may make. Accordingly, since the operation screen can be displayed promptly when the power is turned on, convenience for the user is improved.

  In addition, the configuration of the image processing apparatus 10 described in the present embodiment (see FIG. 1) is merely an example, and it is needless to say that the configuration can be appropriately changed without departing from the gist of the present invention.

  Further, the first controller low power mode transfer process program (see FIG. 2), the second controller low power mode transfer process program (see FIG. 3), and the second controller normal drive mode shift process program described in the present embodiment. The flow of each process of the first controller normal drive mode transition processing program (see FIG. 5) is also an example, and it goes without saying that it can be appropriately changed without departing from the gist of the present invention. .

1 is a block diagram illustrating a schematic configuration of an entire image processing apparatus according to an embodiment. It is a flowchart which shows the flow of a process of the 1st controller low place electric power mode transfer process program which concerns on embodiment. It is a flowchart which shows the flow of a process of the 2nd controller low power mode transfer process program which concerns on embodiment. It is a flowchart which shows the flow of a process of the 2nd controller normal drive mode transfer process program which concerns on embodiment. It is a flowchart which shows the flow of a process of the 1st controller normal drive mode transfer process program which concerns on embodiment. It is a graph which shows the relationship between the power consumption of the system of each low power consumption mode, and the transition time until it transfers to a normal drive mode from a low power consumption mode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image processing apparatus 12 Display apparatus 14 Operation input part 22 CPU
24 Image input unit 28 Image output unit 42 CPU
50 NVRAM
72 Mode transition controller

Claims (5)

A device for executing predetermined image processing, and a normal drive mode for supplying a drive power of a normal supply amount to the device; and a supply amount of the drive power to the device is reduced from the normal drive mode to reduce power consumption. An image processing apparatus having a low power consumption mode for reducing,
Display means for displaying an operation screen having a setting unit in which processing conditions relating to the image processing are set;
Input means for inputting processing condition information indicating the processing conditions set in the setting unit of the operation screen displayed on the display means;
Control of drawing of the operation screen on the display means and driving of the device when the normal drive mode is set, and drawing of the operation screen on the display means when the mode is shifted to the low power consumption mode. First control means for stopping control of driving of the device;
Storage means for storing screen information necessary for drawing the operation screen when the mode is shifted to the low power consumption mode;
When the operation is shifted to the low power consumption mode, the operation is stopped, and when the operation mode is shifted to the normal drive mode, the display of the operation screen on the display unit can be controlled earlier than the first control unit. Until the control of drawing the operation screen on the display unit by the first control unit is started, the operation unit displays the operation screen on the display unit based on the screen information stored in the storage unit. Second control means for performing control to set the processing condition indicated by the processing condition information input from the input means in the setting unit of the operation screen;
An image processing apparatus. The second control means receives the input screen from the start of the operation screen drawing control by the second control means to the start of the operation screen drawing control by the first control means. Control to store the input processing condition information in the storage means,
The first control unit reads the processing condition information from the storage unit when starting control of drawing of the operation screen, and the operation screen in which the processing condition indicated by the processing condition information is set in the setting unit The image processing apparatus according to claim 1, wherein the image is displayed on the display unit. The storage means further stores processing condition information indicating the processing conditions set in the setting unit of the operation screen when the screen information is transferred to the low power consumption mode together with the screen information.
When the second control unit shifts to the normal drive mode, the processing condition indicated by the processing condition information is stored in the setting unit based on the screen information and the processing condition information stored in the storage unit. The image processing apparatus according to claim 1, wherein the set operation screen is displayed on the display unit. The image processing apparatus according to claim 1, wherein the storage unit is nonvolatile. It is further provided with a power off mode for turning off the power of the device body,
The storage means further stores screen information necessary for drawing the operation screen when the power-off mode is entered,
The second control unit stores the memory until the control of the drawing of the operation screen on the display unit by the first control unit is started when the power of the image processing apparatus is turned on. The image processing apparatus according to claim 4, wherein the operation screen is displayed on the display unit based on the screen information stored in the unit.

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