JP2007336776A - Power control unit and electrical equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power control unit for appropriately controlling power, when a fault occurs in a partial power output system of a power supply section having a plurality of power output systems, and to provide electric equipment. <P>SOLUTION: In a composite device 1, when a power fault detection module 107 for control detects the occurrence of a fault in partial power modules 101-104 for control of the power supply section 100 having a plurality of power modules 101-106, the power fault detection module 107 for control makes the operation of units 10, 30, 60, 70 stop except for units 10, 30, 60, 70 used in an operating mode, when a fault occurs in a plurality of scanner engine units 10 operated by receiving power supplied from the power supply section 100, a plotter engine unit 30, a FAX unit 60, and a controller 70, thus continues the operation of the units 10, 30, 60, 70 used at least in an active operating mode. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a power supply control device and an electric device, and more specifically, a power supply control device and an electric device that appropriately perform power control when an abnormality occurs in a part of a power output system of a power supply unit having a plurality of power output systems. Regarding equipment.

  Various electrical devices such as copiers, facsimile machines, printers, multifunction devices, and scanners tend to increase in output capacity and the number of output systems of power supply units as their functions become more sophisticated. is there. In particular, in a composite apparatus having a plurality of functions such as a copy function, a facsimile function, and a printer function, it is necessary to control various functions, and thus a control including a large number of processing units (CPUs) in one composite apparatus. It has a plurality of modules equipped with a circuit, and from the necessity of supplying predetermined power to the circuit elements of the plurality of modules, the power supply unit also has a large capacity and multiple outputs, and outputs a plurality of the same level of power. A power supply unit equipped with a power output system has been adopted.

  On the other hand, in the electrical equipment, contrary to the increase in capacity and power output of the power supply section due to high functionality, space saving of installation of the electrical equipment and the common use of the power supply section are required. It has come to be equipped with the power supply part. In particular, by adding an expansion board to the control board that realizes the core functions, for electrical devices such as composite devices that can be expanded and expanded, multiple power supplies are prominent. In addition to installing a necessary and sufficient power supply unit as a standard for the function to be provided, there are some cases where the power supply unit needs to be additionally mounted when the function is additionally expanded (see Patent Document 1, etc.).

  Thus, in a power supply unit having a plurality of power output systems including a plurality of power supply units, i.e., an electric device equipped with a plurality of power supply modules, a countermeasure when an abnormality occurs in some power supply modules is important. It becomes a problem.

  Conventionally, in order to protect various loads such as control circuit components connected to the output of the power supply device, the output abnormality of the power supply device is detected, and when the abnormality occurs, the output of the power supply device is stopped. A technique has been proposed (see Patent Document 2).

  However, in this conventional technology, even if the power supply unit has a plurality of power output systems, even if some of the plurality of power output systems have an abnormality, Since the output of the entire unit is stopped, there is a problem that the entire function cannot be used even though the predetermined function can be maintained using the power output system in which no abnormality has occurred. .

  Therefore, conventionally, a plurality of outputs that output the same level of output power of the power supply device in order to reduce the outage of the function of the entire device on which the power supply device is mounted even if an abnormality occurs in the partial output of the power supply device. Priorities are set in advance for a plurality of loads connected to the unit, and when an abnormality occurs in the output unit of the power supply unit connected to a higher priority load among the loads, the output is stopped and the priority There has been proposed a technique for supplying electric power to a load having a high priority from an output unit of a power supply device connected to a lower load (see Patent Document 3).

JP-A-8-286572 JP-A-2-68570 JP-A-9-168243

  However, in the prior art described in Patent Document 3, it is possible to appropriately select and operate a functional module necessary for execution of the current operation mode among a plurality of operation modes provided in the electric device. There was a need for improvement.

  That is, in a multi-functional electric device such as a composite device, it is difficult to set the priority of operation of a plurality of functional modules in advance, and depending on the operation mode (job) of the electric device, The priority order of the functional modules necessary for executing the mode is switched.

  For example, in the case of a composite apparatus, the functional modules include a plotter engine that forms an image, a scanner engine that reads an image of a document, a controller that controls the entire apparatus, a facsimile unit that performs facsimile communication, a memory module that stores various data, There are operation units for operating the multifunction device, and the function modules necessary in the main operation mode of the multifunction device are the plotter engine and scanner engine in the copy mode, the plotter engine and controller or memory module in the print mode, In scan mode, the scanner engine and memory module; in facsimile transmission mode, the fax unit and scanner engine or memory module; in facsimile reception mode, the fax unit and plotter engine Or memory modules and the like.

  That is, in the “copy mode”, the image data read by the scanner engine is transferred to the plotter engine and output onto a sheet by an operation from the operation unit. Further, when the productivity of the scanner engine is higher than the productivity of the plotter engine, the difference in productivity can be absorbed by interposing a memory module between the scanner engine and the plotter engine.

  In the “print mode”, image data obtained by converting the format of data transferred from an external personal computer or the like by the controller is transferred to the plotter engine, and is output to the paper by the printer engine.

  Further, in the “scan mode”, the image data read by the scanner engine is stored in the memory module. The operation in the scan mode can be performed with an external personal computer via the controller, or can be performed via the operation unit.

  In the “facsimile transmission mode”, image data read by the scanner engine is output to the public line via the facsimile unit by an operation from the operation unit. It is also possible to output the image data in the memory module to the public line via the facsimile unit.

  Further, in the “facsimile reception mode”, the image data transferred from the public line is transferred to the plotter engine via the facsimile unit and is output on a sheet. Also, image data from the facsimile unit can be stored in the memory module.

  In this way, among the plurality of functional modules of the composite device, the functional modules that operate depending on the operation mode of the composite device are different, and even in the same operation mode, for example, whether the memory module is used or not The functional modules to be used are different, and the priority order of the functional modules changes depending on the operation mode (job) of the composite apparatus.

  Therefore, in the prior art described in Patent Document 3, when an abnormality occurs in a part of the power output system of the power supply unit, the function module is selected according to the operation mode of the electric device to supply power. In order to ensure the operation of important functional modules and to perform proper operation of electrical equipment, there was a need for improvement.

  Therefore, an object of the present invention is to provide a power supply control device and an electric device that ensure stable operation even when an abnormality occurs in a part of a plurality of power output systems of a power supply unit.

  The power supply control device according to the first aspect of the invention executes various operation modes by operating arbitrary functional modules among a plurality of functional modules that operate by receiving power supply from a power supply unit having a plurality of power output systems. A power supply control device for controlling power consumption in the functional module, the abnormality detection means for detecting whether or not an abnormality has occurred in each power output system of the power supply section, and the abnormality detection means is a part of the power supply section Power supply control means for stopping operation of functional modules other than the functional module used in the operation mode at the time of the abnormality among the plurality of functional modules when detecting the occurrence of abnormality in the power output system The above-mentioned purpose is achieved.

  The electrical device according to the second aspect of the present invention includes a plurality of operation modes that are executed using an arbitrary function module among a plurality of function modules that operate by receiving power supply from a power supply unit having a plurality of power output systems. In the electrical equipment, an abnormality detecting means for detecting presence / absence of occurrence of abnormality in each power output system of the power supply unit, and when the abnormality detection unit detects occurrence of abnormality in a part of the power output system of the power supply unit, The above object is achieved by providing power control means for stopping the operation of the function modules other than the function modules used in the operation mode when the abnormality occurs among the function modules.

  In each of the above cases, for example, as described in claim 3, the abnormality detection unit detects whether or not an abnormality has occurred in each power output system based on an output voltage of each power output system of the power supply unit. There may be.

  For example, as described in claim 4, the abnormality detection unit may detect whether or not an abnormality has occurred in each power output system based on the temperature of each power output system in the power supply unit. .

  Furthermore, for example, as described in claim 5, the power control unit may stop the operation of the functional module by interrupting the supply of power from the power supply unit to the functional module. .

  Further, for example, as described in claim 6, the functional module includes a functional module having a control system and a drive load system, and the power supply unit supplies a power to the control system of the functional module. A power output system that supplies power to the power output system and the drive load system, and the abnormality detection means detects whether or not an abnormality has occurred in the control system power output system of the power supply unit, and The means first cuts off the power supply from the drive system power output system of the power supply unit to the drive system load system of the functional module, and then the control system of the functional module from the control system power output system of the power supply unit. The power supply to may be cut off.

  Further, for example, as described in claim 7, the power supply control unit may reduce or stop the operation clock of the functional module to stop the operation of the functional module.

  Further, for example, as described in claim 8, the power supply control unit may stop the operation of the functional module by resetting the functional module.

  Further, for example, as described in claim 9, the power control unit may be incorporated in a control function module that controls the operation of another function module among the plurality of function modules.

  Further, for example, as described in claim 10, the power control unit may be incorporated in an operation function module that instructs and operates the operation of another function module among the plurality of function modules.

  Furthermore, for example, as described in claim 11, the power control unit is incorporated in the plurality of functional modules, and the functional module in which the power control unit is incorporated is switched according to the operation mode. The power control function may be executed by the power control means.

  According to the power supply control device of the present invention, when an abnormality occurs in a part of the power output system of the power supply unit having a plurality of power output systems, among the plurality of functional modules that operate by receiving power supply from the power supply unit, Since the operation of the function modules other than the function module used in the operation mode at the time of occurrence of the abnormality is stopped, at least the operation of the function module used in the operation mode being executed is secured and the execution of the operation mode is continued. Even if a failure or the like occurs in a part of the power output system of the power supply unit, it is possible to reliably execute the operation job being executed and improve the usability.

  Further, according to the electrical device of the present invention, when an abnormality occurs in a part of the power output system of the power supply unit having a plurality of power output systems, among the plurality of functional modules that operate by receiving power supply from the power supply unit. Since the operation of the function modules other than the function module used in the operation mode of the electrical device at the time of occurrence of the abnormality is stopped, at least the operation of the function module used in the operation mode being executed is secured and the operation mode is executed. Thus, even if a failure or the like occurs in a part of the power output system of the power supply unit, it is possible to reliably execute the operation job being executed and improve the usability.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, since the Example described below is a suitable Example of this invention, various technically preferable restrictions are attached | subjected, However, The scope of the present invention limits this invention especially in the following description. As long as there is no description of the effect, it is not restricted to these aspects.

  1 to 12 are diagrams showing a first embodiment of a power supply control device and an electric device according to the present invention, and FIG. 1 is a composite device to which the first embodiment of the power supply control device and the electric device according to the present invention is applied. 1 is a schematic front view of FIG.

  In FIG. 1, a composite apparatus (electrical device) 1 has a contact glass 3 disposed on an upper surface portion of a main body housing 2, and a first unillustrated first body body 2 below the contact glass 3. A scanner engine unit 10 including a lamp 4 and a first mirror 5 mounted on a carriage, a second mirror 6 and a third mirror 7 mounted on a second carriage (not shown), a lens 8 and a CCD 9 is disposed.

  In the scanner engine unit 10, the first carriage and the second carriage are driven by a motor (not shown) to move in the sub-scanning direction, which is the left-right direction in FIG. 1, and the document set on the contact glass 3 is fixed. The image of the original is read by main scanning and sub scanning.

  In the composite apparatus 1, an ADF (Auto Document Feeder) 20 is attached to the upper portion of the main body housing 2 so that the upper surface of the contact glass 3 can be opened and closed. By opening the ADF 20, a document can be set on the contact glass 3. Thus, it has a function of a pressure plate that presses the original against the contact glass 3 when the original is closed on the contact glass 3.

  The ADF 20 includes a document table 21, a feeding roller 22, a feeding belt 23, a plurality of conveying rollers 24 disposed along the feeding belt 23, a discharge roller 25, a discharge table 26, a document set detection sensor 27, and the like. Is arranged.

  When a start key on an operation display unit (not shown) is pressed in a state where a document bundle is set with the image surface facing up on the document table 21, the ADF 20 is moved on the document table 21 by the feeding roller 22. One by one from the lowermost document in the bundle of documents set on the sheet, fed to the feeding belt 23, and the document fed to the feeding belt 23 is contact glass by the feeding belt 23 moved by the conveying roller 24. 3 is fed to a predetermined position.

  The multifunction apparatus 1 reads the document information on the contact glass 3 by the scanner engine unit 10 and then discharges the original on the sheet discharge table 26 by the feeding belt 23 and the discharge roller 25.

  The ADF 20 has a count function that counts up the number of documents every time a document is fed.

  When the document set detection sensor 27 detects that the next document is on the document table 21, the copying apparatus 1 uses the feeding roller 22 and the feeding belt 23 as the lowermost document on the document table 21 as described above. Then, the image information of the original on the contact glass 3 is read by the scanner engine unit 10, and then is fed onto the discharge table 26 by the feeding belt 23 and the discharge roller 25. Discharge. The feeding roller 22, the feeding belt 23, and the discharging roller 25 are driven by a conveyance motor (not shown).

  In the copying apparatus 1, a plotter engine unit 30 is disposed below the scanner engine unit 10 in the main body housing 2. The plotter engine unit 30 includes a photoconductor (for example, photoconductor drum) 31, a writing unit. 32, a developing unit 33, a conveyance belt 34, a fixing unit 35, a conveyance switching sheet discharge unit 36, a duplex input sheet conveyance path 37, a reverse sheet discharge conveyance path 38, a reversing unit 39, a duplex conveyance unit 40, a sheet feeding unit group 41, A transport unit 42, a paper discharge tray 43, and the like are provided.

  The plotter engine unit 30 uniformly charges the surface of the photoreceptor 31 that is driven to rotate clockwise in FIG. 1 by a main motor (not shown) by a charger (not shown), and the scanner engine unit 10 is placed on the surface of the photoreceptor 31. Is written by the writing unit 32 on the basis of the image information read in (1) or data sent from an external device (not shown) such as a personal computer to form an electrostatic latent image. The plotter engine unit 30 supplies toner from the developing unit 33 to the photosensitive member 31 on which the electrostatic latent image is formed, visualizes it as a toner image, and transfers the visualized toner image on the photosensitive member 31. Is transferred to the paper P fed from one of the paper feed unit groups 41 and transported by the transport unit 42. The plotter engine unit 30 transports the paper P on which the toner image has been transferred to the fixing unit 35 by the transport belt 34, performs the fixing process by the fixing unit 35, and then sends it to the transport switching paper discharge unit 36 for transport. The switching paper discharge unit 36 switches the conveyance path. The transport switching paper discharge unit 36 discharges the paper P onto the paper discharge tray 43 provided on the side surface of the main body housing 2 when discharging the paper P as it is. The plotter engine unit 30 cleans the transferred photoreceptor 31 with a cleaning unit (not shown), removes residual toner, removes electricity with a neutralization unit (not shown), and then uniformly charges again with a charging unit. For image formation.

  A reversing unit 39 for reversing the front and back surfaces of the paper P by the double-sided paper feeding transport path 37 and the reverse paper discharge transport path 38 and the paper P reversed by the reversing unit 39 are again transported to the transport switching paper discharge unit 36. A double-sided conveyance unit 40 is connected between the photosensitive member 31 and the conveyance belt 34 via the transfer belt. When the reverse discharge or the double-sided recording is selected, the conveyance switching discharge unit 36 displays an image on one side. The sheet P on which fixing has been completed is sent to the reversing unit 39 via the reversing discharge conveyance path 38.

  When the reverse discharge is selected, the reversing unit 39 temporarily pulls in the paper P sent from the transport switching paper discharge unit 36 and reverses the front and back surfaces of the paper P, and then reverses the paper discharge transport path 38. To the conveyance switching paper discharge unit 36, and the conveyance switching paper discharge unit 36 discharges the paper P whose front and back are reversed by the reversing unit 39 onto the paper discharge tray 43.

  When double-sided recording is selected, the duplex transport unit 40 pulls in the paper P that is once pulled by the reversing unit 39 and reverses the front and back surfaces, and sends the paper P to the transport unit 42. And the conveying belt 34 are used for image formation on the back surface.

  The sheet feeding unit group 41 includes three sheet feeding units, a first sheet feeding unit 51 to a third sheet feeding unit 53, and each sheet feeding unit 51 to 53 has a first sheet feeding tray 51a to a third sheet feeding unit, respectively. A paper tray 53 a and paper feed roller portions 51 b to 53 b for separating the paper P in the paper feed trays 51 a to 53 a one by one and feeding them to the transport unit 42 are provided. The sheet feeding unit group 41 drives the sheet feeding roller units 51b to 53b of the selected sheet feeding units 51 to 53, and the sheets P in the sheet feeding trays 51a to 53a of the selected sheet feeding units 51 to 53 are driven. Are separated one by one and sent to the transport unit 42.

  The transport unit 42 transports the paper P sent from the paper feed units 51 to 53 of the paper feed unit group 41 between the photosensitive member 31 and the transport belt 34.

  The composite apparatus 1 is configured as a block as shown in FIG. 2 and includes the scanner engine unit 10 and the plotter engine unit 30 as well as a FAX unit 60, a controller 70, a hard disk (HDD) 80, and the like. ing. In the composite apparatus 1, the HDD 80 is connected to the controller 70, and data is written and read out under the control of the controller 70. The scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70 are connected to the image data bus. 90 is connected. The multifunction device 1 includes an operation display unit (not shown in FIGS. 1 and 2). The operation display unit is configured to input operations from operation keys and operation keys for causing the multifunction device 1 to perform various operations. A display unit (for example, an LCD (Liquid Crystal Display)) or the like for displaying the contents and various information notified to the user from the composite apparatus 1 is provided.

  The composite apparatus 1 uses the units 10, 30, 60, the controller 70, and the HDD 80 to execute the operation functions of a copy function, a printer function, a scan function, and a facsimile function. The copy function, the printer function, the scan function, and the facsimile function can be sequentially switched and selected by, for example. When the copy function is selected, the multifunction apparatus 1 is in the copy mode, when the printer function is selected, the print mode is selected, when the scan function is selected, the scan mode is selected, and when the facsimile mode is selected, the facsimile machine 1 is selected. It becomes a mode.

  Hereinafter, the multifunction apparatus 1 will sequentially describe the operation processing in each operation mode. First, in the copy mode using the ADF 20 among the copy modes, the multifunction apparatus 1 sets the document on the document table 21 with its image surface facing upward, and presses the start key on the operation display unit. The lowermost original is fed to a predetermined position on the contact glass 3 by the feeding roller 22 and the feeding belt 23, and the original on the contact glass 3 is scanned by the scanner engine unit 10 to read the image information. . The multifunction apparatus 1 discharges the document on which the image information has been read onto the sheet discharge table 26 by the feeding belt 23 and the discharge roller 25. In a copy process that does not use the ADF 20, the ADF 20 is opened and the image of the document set on the contact glass 3 is read by the scanner engine unit 10. The multifunction device 1 passes image data read from a document by the scanner engine unit 10 to the writing unit 32 of the plotter engine unit 30 and converts it into optical information by the writing unit 32, so that the photosensitive device is uniformly charged. The body 31 is irradiated to form an electrostatic latent image. As described above, the plotter engine unit 30 supplies toner from the developing unit 33 to the electrostatic latent image on the photoconductor 31 and visualizes it as a toner image, and the visualized toner image also has a transfer function. The transport belt 34 transfers the paper P fed from one of the paper feed unit groups 41 and transported by the transport unit 42. The plotter engine unit 30 conveys the paper P onto which the toner image has been transferred to the fixing unit 35 by the conveyance belt 34, performs fixing processing by the fixing unit 35, and then sends the paper P to the conveyance switching paper discharge unit 36 for conveyance switching. In the paper discharge unit 36, the conveyance path is switched. When discharging the paper P as it is, the transfer switching paper discharge unit 36 discharges the paper P onto a paper discharge tray 43 provided on the side surface of the main body housing 2, and if reverse paper discharge or double-sided recording is selected, The reversing unit 39 and the duplex conveying unit 40 are used to perform the reverse discharge or the duplex recording to perform the copy operation process.

  Next, in the print mode, the multifunction apparatus 1 converts the format of image data from the outside (such as a personal computer) by the controller 70 instead of the image data from the scanner engine unit 10, and writes the plotter engine unit 30. In the same manner as described above, the plotter engine unit 30 forms an image according to single-sided recording, reverse paper discharge, and double-sided recording to perform a printing operation process.

  In the scan mode, the multifunction apparatus 1 stores the image data of the document read by the scanner engine unit 10 in the hard disk (HDD) 80 via the controller 70 as described above, and thereafter, as necessary. To an external personal computer or the like. The operation in the scan mode can be performed on the operation display unit, or can be performed on an external personal computer or the like via the controller 70.

  Further, in the facsimile transmission mode, the multifunction apparatus 1 passes the image data from the scanner engine unit 10 to the FAX unit 60 and transmits the image data from the transmission unit of the FAX unit 60 to the public line via the modem. Of the stored image data, the image data to be transmitted is read from the HDD 80, transferred to the transmission unit of the FAX unit 60, and transmitted from the transmission unit of the FAX unit 60 to the public line via the modem.

  In the facsimile reception mode, the multifunction apparatus 1 receives image data from the public line via the modem at the receiving unit of the FAX unit 60 and passes the received image data to the writing unit 32 of the plotter engine unit 30. As described above, the plotter engine unit 30 forms an image on the paper P based on the received image data. In the facsimile reception mode, the composite apparatus 1 may store the received image data in the HDD 80 instead of passing the received image data to the writing unit 32 and forming an image on the paper P by the plotter engine unit 30.

  The composite apparatus 1 includes the power supply unit 100 illustrated in FIG. 3. The power supply unit 100 includes a plurality of (four in FIG. 3) power output systems as control power supply modules 101 to 104, and a drive power supply module. 105 and a monitoring power supply module 106, and a control power supply abnormality detection module (abnormality detection means, power supply control means) 107 and the like.

  Each of the control power supply modules 101 to 104 generates a control power supply from an external commercial power supply, and supplies the control power to each unit 10, 30, 60, 70 of the composite apparatus 1 via the control power supply bus Ps. At the same time, the output power supply voltage is input to the control power supply abnormality detection module 107. For example, when the FAX unit 60 is an expansion option unit and not installed, the control power supply modules 101 to 104 have the total power supply capability of the control power supply modules 101 to 103 depending on the plotter engine unit 30 and the scanner engine unit 10. The controller 70 and the HDD 80 need only have sufficient power supply capability to cover the maximum power of the control power supply in each operation mode, and when the FAX unit 60 is expanded, the power supply unit 100 is further controlled. The power supply module 104 may be mounted.

  The monitoring power supply module 106 is a dedicated power supply module for the control power supply abnormality detection module 107. However, the power supply of the control power supply abnormality detection module 107 is not limited to the case where the dedicated monitoring power supply module 106 is used. The outputs of the control power supply modules 101 to 104 may be used, or the drive power supply module 105 may be stepped down by a voltage regulator or the like and used as a power supply for the control power supply abnormality detection module 107.

  The drive power supply module 105 mainly supplies power to a drive unit (drive load) such as a motor, a clutch, and a solenoid of the plotter engine unit 30, and supplies drive power via the drive power supply bus Pd. .

  The control power supply abnormality detection module 107 monitors the output state of the control power supply modules 101 to 104, and detects an abnormality in at least one of the control power supply modules 101 to 104, and sends a control stop signal to the scanner engine unit 10 and the plotter. Of the engine unit 30, the FAX unit 60 and the controller 70, an appropriate unit 10, 30, 60, 70 is output to stop the operation of the unit 10, 30, 60, 70.

  The control power supply abnormality detection module 107 has a circuit configuration as shown in FIG. 4 and includes control power supply abnormality detection circuits 111 to 114 and NAND circuits provided corresponding to the control power supply modules 101 to 104, respectively. 115, a mode determination unit 116, and the like.

  The output voltages of the control power supply modules 101 to 104 are input to the control power supply abnormality detection circuits 111 to 114, and the control power supply abnormality detection circuits 111 to 114 are input to the control power supply module 101. When the output voltage of .about.104 is normal, an H (high) level control power supply abnormality detection signal is output to the NAND circuit 115. When the output voltage of the input control power supply modules 101 to 104 is abnormal, An L (low) level control power supply abnormality detection signal is output to the NAND circuit 115.

  When all the control power supply abnormality detection signals input from the control power supply abnormality detection circuits 111 to 114 are at the H level indicating normality, the NAND circuit 115 sends the control power supply abnormality detection signal at the H level to the mode determination unit. The control power abnormality detection signal at L level is set to the L level indicating that any one of the control power abnormality detection signals output from the control power abnormality detection circuits 111 to 114 is abnormal. It outputs to the determination part 116. These control power supply abnormality detection circuits 111 to 114 and NAND circuit 115 function as abnormality detection means as a whole.

  The mode determination unit (power control unit) 116 recognizes the current operation mode of the multifunction apparatus 1 and operates in the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70 in the recognized operation mode. Knowing which units are inside and which units are waiting. The mode determination unit 116 sets the control stop signal to the H level as an initial value, and outputs the control stop signal at the H level in units 10, 30, 60, and the normal state, including when the operation mode of the composite apparatus 1 is not fixed. 70, the control power supply abnormality detection signal from the NAND circuit 115 is determined, and if the control power supply abnormality detection signal is at L level, that is, at least one of the control power supply modules 101 to 104 is for control. When the outputs of the power supply modules 101 to 104 are abnormal, an L level control stop signal is output to the standby units 10, 30, 60, and 70.

  In the control power supply abnormality detection module 107 in FIG. 4, the control power supply abnormality detection signals output from the control power supply abnormality detection circuits 111 to 114 are combined by the NAND circuit 115 and input to the mode determination unit 116. The control power supply abnormality detection signals output from the control power supply abnormality detection circuits 111 to 114 may be independently input to the mode determination unit 116. In this way, the mode determination unit 116 can independently determine the states of the control power supply abnormality detection signals from the control power supply abnormality detection circuits 111 to 114, and one control power supply module 101 to 104 can be determined. It is possible to determine whether the control power supply modules 101 to 104 are abnormal at the same time, and which control power supply modules 101 to 104 are abnormal.

  The control power supply abnormality detection circuits 111 to 114 are configured as shown in FIG. 5, and include comparators 111Cp to 1114Cp, voltage dividing resistors 111Ra, 111Rb to 114Ra to 114Rb, and resistors 114Rc to 114Rc, respectively. In each of the control power supply abnormality detection circuits 111 to 114, the output voltages of the control power supply modules 101 to 104 are input to the + input terminals of the comparators 111Cp to 114Cp, respectively, and to the − input terminals of the comparators 111Cp to 114Cp, The divided voltages of the voltage dividing resistors 111Ra and 111Rb to 114Ra to 114Rb are input as specified values for detecting an abnormality of the control power supply modules 101 to 104. Each of the control power supply abnormality detecting circuits 111 to 114 is defined such that the output voltage of the corresponding control power supply module 101 to 104 is a normal value, that is, a divided voltage set by the voltage dividing resistors 111Ra, 111Rb to 114Ra to 114Rb. When the value is higher than the value, an H level control power supply abnormality detection signal is output to the NAND circuit 115, and the output voltages of the control power supply modules 101 to 104 are abnormal values, that is, the voltage dividing resistors 111Ra, 111Rb to 114Ra. When it is lower than the divided voltage (specified value) of 114Rb, an L level control power supply abnormality detection signal is output to the NAND circuit 115. For example, when the guaranteed output voltage value of the control power supply modules 101 to 104 is 5V ± 3%, by setting the divided voltage (specified value) of the voltage dividing resistors 111Ra and 111Rb to 114Ra to 114Rb to 4.8V, In the normal normal state, the output voltage of the control power supply modules 101 to 104 indicates a normal value (in the above case, 5V ± 3%). Can be detected.

  Further, among the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70, the units 10, 60, and 70 other than the plotter engine unit 30 are, for example, shown only in their control circuits in FIG. Further, a control power shut-off relay 120 includes a power supply bus Ps to which control power is supplied from the power supply unit 100, control devices 130 and 131 of each unit 10, 60 and 70, and a reset IC (Integrated Circuit). ) 132, and a control stop signal is input to the relay 120 from the control power supply abnormality detection module 107. The relay 120 is turned on when the control stop signal is at the H level, supplies the control power from the power supply unit 100 to the control devices 130 and 131 and the reset IC 132, and is turned off when the control stop signal is at the L level. The supply of the control power from the power supply unit 100 to the control devices 130 and 131 and the reset IC 132 is stopped. When the relay 120 is turned off and the supply of control power is stopped, the reset IC 132 resets the control devices 130 and 131 in order to stop the processing operation of the control devices 130 and 131.

  The plotter engine unit 30 includes a control power supply relay 101 from the control power supply modules 101 to 104 of the power supply unit 100, as shown in FIG. Is provided between the power supply bus Ps supplied to the control device 133 and 134 and the reset IC 135 of the plotter engine unit 30, and a driving power cutoff relay 122 is provided for driving the power supply unit 100. The power supply module 105 is disposed between the power supply bus Pd to which driving power is supplied from the power supply module 105 and the load 136 of the plotter engine unit 30. The relay 121 and the relay 122 receive a control stop signal from the control power supply abnormality detection module 107. The relay 121 is turned on when the control stop signal is at the H level, and the control power supply modules 101 to 101 of the power supply unit 100 are turned on. The control power from 104 is supplied to the control devices 133 and 134 and the reset IC 135. When the control stop signal is at the L level, the control power is turned off to control the control power from the control power modules 101 to 104 of the power supply unit 100. Supply to the devices 133 and 134 and the reset IC 135 is stopped. The relay 122 is turned on when the control stop signal is at the H level and supplies the drive power from the drive power supply module 105 of the power supply unit 100 to the load 136, and is turned off when the control stop signal is at the L level. Then, the supply of the drive power from the drive power supply module 105 of the power supply unit 100 to the load 136 is stopped. The load 136 is a driving load such as a motor, a clutch, and a solenoid of the plotter engine unit 30. That is, the printer engine unit 30 has a control system and a drive load system.

  In addition, when the relay 121 is turned off and the supply of control power is stopped, the reset IC 132 resets the control devices 133 and 134 in order to stop the processing operation of the control devices 133 and 134.

  Next, the operation of this embodiment will be described. When the control power supply abnormality detection module 107 detects at least one abnormality among the control power supply modules 101 to 104, the composite apparatus 1 of this embodiment is unnecessary depending on the operation mode of the composite apparatus 1 at that time. The supply of power to the units 10, 30, 60, 70 is cut off, and the operations of the corresponding units 10, 30, 60, 70 are stopped.

  That is, the composite apparatus 1 includes a scanner engine unit 10, a plotter engine unit 30, a FAX unit 60, a controller 70, an HDD 80 under the control of the controller 70, and the like as functional modules. Each of the copy function, printer function, scan function, and facsimile function is executed by the control power source 104 and the drive power source from the drive power supply module 105. The multi-function apparatus 1 can select a copy function, a printer function, a scan function, and a facsimile function in order by using an application switching key or the like on the operation display unit. The print mode is selected when the function is selected, the scan mode is selected when the scan function is selected, and the facsimile mode is selected when the facsimile mode is selected.

  The composite apparatus 1 detects whether or not the control power supply modules 101 to 104 are abnormal by the control power supply abnormality detection module 107, and the control power supply abnormality detection module 107 detects at least one of the control power supply modules 101 to 104. When an abnormality is detected, an unnecessary scanner engine is selected according to the operation mode of the composite apparatus 1 when the abnormality is detected in the control power supply modules 101 to 104 among the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70. The operations of the unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70 are stopped.

  Specifically, as shown in FIG. 4, in the control power supply abnormality detection module 107, the output voltages of the control power supply modules 101 to 104 are input to the control power supply abnormality detection circuits 111 to 114, respectively. Each of the control power supply abnormality detection circuits 111 to 114 outputs an H (high) level control power supply abnormality detection signal to the NAND circuit 115 when the output voltage of the input control power supply modules 101 to 104 is normal. When the output voltage of the control power supply modules 101 to 104 is abnormal, an L (low) level control power supply abnormality detection signal is output to the NAND circuit 115. When all the control power supply abnormality detection signals input from the control power supply abnormality detection circuits 111 to 114 are at the H level indicating normality, the NAND circuit 115 sends the control power supply abnormality detection signal at the H level to the mode determination unit. The control power abnormality detection signal at L level is set to the L level indicating that any one of the control power abnormality detection signals output from the control power abnormality detection circuits 111 to 114 is abnormal. It outputs to the determination part 116.

  The mode determination unit 116 recognizes the current operation mode of the multifunction apparatus 1 and is a unit that is operating in the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70 in the recognized operation mode. , Keep track of waiting units. The mode determination unit 116 sets the control stop signal to the H level as an initial value, and outputs the control stop signal at the H level in units 10, 30, 60, and the normal state, including when the operation mode of the composite apparatus 1 is not fixed. 70, the control power supply abnormality detection signal from the NAND circuit 115 is determined, and if the control power supply abnormality detection signal is at L level, that is, at least one of the control power supply modules 101 to 104 is for control. When the outputs of the power supply modules 101 to 104 are abnormal, an L level control stop signal is output to the standby units 10, 30, 60, and 70.

  For example, when some power supply modules (for example, the power supply module 101) out of the control power supply modules 101 to 104 fail, the loads on the control power supply modules 101 to 104 are the scanner engine unit 10, the plotter engine unit 30, The FAX unit 60, the controller 70, and the HDD 80, which are covered by the total power supply capability of the four control power supply modules 101 to 104 in a normal state, whereas one, for example, the control power supply module 101 is provided. Due to the failure, the same load must be covered by the total power supply capability of the three power supply modules 102 to 104 for control. For this reason, the other three control power supply modules 102 to 104 in which no abnormality has occurred have an output current higher than expected, so the overcurrent detection functions and the control power supply modules 102 to 104 shut off the output, All of the composite apparatus 1 is stopped. As a result, if an abnormality occurs in the control power supply modules 101 to 104, for example, during execution of a job such as a copy operation, the job being executed is lost, and the usability is impaired.

  Therefore, when the abnormality occurs in the control power supply modules 101 to 104 in this way, the multifunction apparatus 1 according to the present embodiment does not require the scanner engine unit 10 and the plotter engine depending on the operation mode of the multifunction apparatus 1 at that time. The operations of the unit 30, the FAX unit 60, the controller 70, and the HDD 80 are stopped.

  Specifically, when the mode determination unit 116 of the control power supply abnormality detection module 107 recognizes that the operation mode is the copy mode, that is, an abnormality has occurred in the control power supply modules 101 to 104 of the power supply unit 100 during execution of the copy job. In order to give priority to the continuation of jobs of the plotter engine unit 30 and the scanner engine unit 10 which are operating units in the copy mode, a control stop signal is output to the controller 70 and the FAX unit 60 which are standby units. Even in the copy mode, image data is temporarily stored in the HDD 80 from the scanner engine unit 10 via the controller 70. When the image data storage is completed, the image data is transferred from the HDD 80 to the plotter engine unit 30. If the copy mode is such that the print job is executed, the mode determination unit 116 gives priority to the continuation of the job of the controller 70 that controls the plotter engine unit 30 and the HDD 80 and gives the scanner engine unit 10 and the FAX unit 60 a priority. An L level control stop signal is output.

  Further, when the mode determination unit 116 of the control power supply abnormality detection module 107 recognizes that the operation mode is the print mode, that is, the control power supply modules 101 to 104 of the power supply unit 100 are abnormal during execution of the print job, the print mode. In order to give priority to the continuation of the jobs of the plotter engine unit 30 and the controller 70 which are operating units in FIG. 1, an L level control stop signal is output to the scanner engine unit 10 and the FAX unit 60 which are standby units.

  Further, when the mode determining unit 116 of the control power supply abnormality detection module 107 recognizes that the operation mode is the scanner mode, that is, the control power supply modules 101 to 104 of the power supply unit 100 are abnormal during execution of the scan job, the scan mode In order to give priority to the continuation of the job of the scanner engine unit 10 that is an active unit and the controller 70 that controls the HDD 80, the control stop signal of L level is sent to the plotter engine unit 30 and the FAX unit 60 that are standby units Is output.

  When the mode determination unit 116 of the control control power supply abnormality detection module 107 recognizes that the operation mode is the facsimile transmission mode, that is, the power supply unit 100 control power supply modules 101 to 104 are abnormal during execution of the facsimile transmission job, In order to give priority to the continuation of the jobs of the scanner engine unit 10 and the FAX unit 60 which are operating units in the transmission mode, an L level control stop signal is output to the plotter engine unit 30 and the controller 70 which are standby units. To do. Even in the facsimile transmission mode, if the facsimile transmission mode is such that image data stored in the HDD 80 in advance is transferred to the FAX unit 60 and transmitted by facsimile, the jobs of the controller 70 that controls the HDD 80 and the FAX unit 60 are performed. Is given priority, and an L level control stop signal is output to the plotter engine unit 30 and the scanner engine unit 10.

  Furthermore, when the mode determination unit 116 of the control control power supply abnormality detection module 107 recognizes that the operation mode is the facsimile reception mode, that is, the power supply unit 100 control power supply modules 101 to 104 are abnormal during execution of the facsimile reception job, In order to give priority to the continuation of jobs of the plotter engine unit 30 and the FAX unit 60 which are operating units in the reception mode, an L level control stop signal is output to the scanner engine unit 10 and the controller 70 which are standby units. To do. Even in the facsimile reception mode, if the facsimile reception mode is to store the image data received by the FAX unit 60 in the HDD 80, priority is given to the continuation of the jobs of the controller 70 and the FAX unit 60 that controls the HDD 80, and the plotter engine. An L level control stop signal is output to the unit 30 and the scanner engine unit 10.

  As shown in FIG. 6, each scanner engine unit 10, the FAX unit 60, and the controller 70 are connected to the power supply bus Ps to which the control power cutoff relay 120 is supplied with the control power from the power supply unit 100. The unit is disposed between the control devices 130 and 131 and the reset IC 132 of each unit 10, 60 and 70, and a control stop signal is input to the relay 120 from the control power supply abnormality detection module 107.

  The relay 120 is turned on when the control stop signal is at the H level and supplies the control power from the power supply unit 100 to the control devices 130 and 131 and the reset IC 132, and is turned off when the control stop signal is at the L level. The supply of the control power from the power supply unit 100 to the control devices 130 and 131 and the reset IC 132 is stopped. When the relay 120 is turned off and the supply of control power is stopped, the reset IC 132 resets the control devices 130 and 131 in order to stop the processing operation of the control devices 130 and 131.

  As shown in FIG. 7, the plotter engine unit 30 includes a power supply bus Ps to which the control power cutoff relay 121 is supplied with control power from the control power supply modules 101 to 104 of the power supply unit 100. Between the control device 133 and 134 and the reset IC 135 of the plotter engine unit 30, and a driving power cutoff relay 122 is provided for driving from the driving power supply module 105 of the power supply unit 100. Between the power supply bus Pd to which power is supplied and the load 136 of the plotter engine unit 30 is disposed. A control stop signal is input to the relay 121 and the relay 122 from the mode determination unit 116 of the control power supply abnormality detection module 107. When the control stop signal is at the H level, the relay 121 is turned on and the power supply unit 100 When the control power from the control power supply modules 101 to 104 is supplied to the control devices 133 and 134 and the reset IC 135 and the control stop signal is at the L level, the control power is turned off and from the control power supply modules 101 to 104 of the power supply unit 100. The supply of the control power to the control devices 133 and 134 and the reset IC 135 is stopped. The relay 122 is turned on when the control stop signal is at the H level, supplies driving power from the drive power supply module 105 of the power supply unit 100 to the load 136, and is turned off when the control stop signal is at the L level. Then, the supply of the drive power from the drive power supply module 105 of the power supply unit 100 to the load 136 is stopped.

  When the operation of the plotter engine unit 30 is stopped, the control / control power supply abnormality detection module 107 first sets the control stop signal to the relay 122 for turning on / off the drive power from the drive power supply module 105 to L level. After a certain time has elapsed, the control stop signal to the relay 121 for turning on / off the control power from the power supply modules 101 to 104 is set to L level, and the load 136 is first disconnected from the power bus Pd for driving power. After the drive power is turned off, the control devices 133 and 134 are disconnected from the control power supply bus Ps after a certain time has elapsed, and the control power is turned off.

  As described above, when the abnormality occurs in some of the control power supply modules 101 to 104 of the control power supply module 101 in the power supply unit 100 having the plurality of power supply modules 101 to 106, the composite apparatus 1 of the present embodiment Among the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70, which are a plurality of functional modules that operate by receiving power supply from the unit 100, the units 10, 30, 30 to be used in the operation mode when the abnormality occurs The operations of the units 10, 30, 60, 70 other than 60, 70 are stopped.

  Therefore, at least the operation of the units 10, 30, 60, and 70 used in the operation mode being executed can be secured and the execution of the operation mode can be continued. Even if a failure or the like occurs in .about.104, the operation job being executed can be reliably executed to improve the usability.

  Further, the composite apparatus 1 according to the present embodiment stops the supply of power from the power supply modules 101 to 105 of the power supply unit 100 to the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70. The operations of 10, 30, 60, and 70 are stopped.

  Therefore, it is possible to completely stop the operations of the units 10, 30, 60, and 70 unnecessary for executing the current operation mode, and it is possible to use the power that can be supplied from the power supply unit 100 more effectively.

  Furthermore, the composite apparatus 1 of the present embodiment detects an abnormality of the control power supply modules 101 to 104 based on the output voltage of the control power supply modules 101 to 104.

  Therefore, the presence / absence of abnormality of the control power supply modules 101 to 104 can be accurately detected with a simple circuit configuration.

  Note that the control power supply abnormality detection circuits 111 to 114 are not limited to the circuit configuration of FIG. 5 described above. For example, the control power supply abnormality detection circuit 111a shown in FIG. The comparator 111Cp2, the voltage dividing resistors 111Ra2, 111Rb2, and the resistor 114Rc2, which are circuits having the same configuration as the 111Cp, the voltage dividing resistors 111Ra, 111Rb, and the resistor 114Rc, are provided between the control power supply module 101 and the NAND circuit 115, and An AND circuit 111AD that combines the outputs of 111Cp and the comparator 111Cp2 may be provided, and the output of the AND circuit 111AD may be input to the NAND circuit 115.

  When the output voltage of the control power supply module 101 is low (4.8 V or less), the control power supply abnormality detection circuit 111a is connected to the other comparator 111Cp, 111Cp2, for example, the comparator 111Cp2, for example, the comparator 111Cp. In order to detect a case where the output voltage of the control power supply module 101 is high (more than 5.2 V), the specified values input to the negative input terminals of the corresponding comparators 111Cp and 111Cp2 are set to the voltage dividing resistors 111Ra and 111Cp2, respectively. 111Rb and voltage dividing resistors 111Ra2 and 111Rb2 are set. Then, the outputs of the comparators 111Cp and 111Cp2 are AND-combined by the AND circuit 111AD and output to the NAND circuit 115. In this case, although not shown in FIG. 6, the other control power supply abnormality detection circuits 112a to 114a have the same circuit configuration.

  In this way, it is possible to appropriately detect whether or not the control power supply modules 101 to 104 are in an appropriate range, and to output a control power supply abnormality detection signal to the NAND circuit 115, thereby further appropriately detecting abnormality. It can be performed.

  The control power supply abnormality detection circuits 111 to 114 and the control power supply abnormality detection circuit 114a detect the presence or absence of abnormality of the control power supply modules 101 to 104 based on the output voltage of the control power supply modules 101 to 104. However, the detection of the presence or absence of abnormality of the control power supply modules 101 to 104 is not limited to the detection based on the output voltage of the control power supply modules 101 to 104. For example, as shown in FIG. The presence or absence of abnormality of the control power supply modules 101 to 104 may be detected based on the temperatures of 101 to 104.

  FIG. 9 shows the circuit configuration of the control power supply abnormality detection circuit 111b that detects whether or not the control power supply module 101 is abnormal. The control power supply abnormality detection circuit 114b includes a comparator 111Cp3, a voltage dividing resistor 111Ra3, 111Rb3, a resistor 111Rc3, and a resistor 111Rd. The control power supply module 101 includes a thermistor 101S that detects the internal temperature. One of the thermistors 101S of the control power supply modules 101 to 104 is connected to the + input terminal of the comparator 111Cp3 of the control power supply abnormality detection circuit 114b, and the other is grounded. The + input terminal of the comparator 111Cp3 to which the thermistor 101S is connected is connected to a predetermined voltage power supply via a voltage conversion resistor 111Rd, and the control power supply detected by the thermistor 101S is connected to the + input terminal of the comparator 111Cp3. A temperature conversion voltage obtained by converting the temperature of the module 101 into a voltage by the resistor 111Rd is input. The comparator 111Cp3 compares the temperature conversion voltage input to its + input terminal with the specified voltage (specified temperature) set by the voltage dividing resistors 111Ra3 and 111Rb3, and the detected temperature of the control power supply module 101 is higher than the specified temperature. The case is determined to be abnormal. 9 shows only the control power supply module 101 and the control power supply abnormality detection circuit 111b corresponding to the control power supply module 101, the other control power supply modules 101 to 104 and the control power supply module 101 are shown. The same applies to the control power supply abnormality detection circuits 112b to 114b corresponding to .about.104.

  If it does in this way, the presence or absence of abnormality of control power supply modules 101-104 can be detected more appropriately based on temperature, and when abnormality, such as failure of power supply part 100, has occurred, the power supply part by secondary destruction The occurrence of an abnormality such as a failure of the control power supply modules 101 to 104 can be detected before the power output of 100 falls into an abnormality.

  6 and FIG. 7, the power supply bus Ps from the control power supply modules 101 to 104 is cut off, and the power supply bus Pd from the drive power supply module 105 is cut off, so that the target unit 10, The operation of the units 30, 60, and 70 is stopped. However, the method of stopping the operations of the units 10, 30, 60, and 70 is not limited to the method of shutting off the supply of power. For example, as shown in FIG. In addition, the operation clock for controlling the operation of the units 10, 30, 60 and 70 to the control device may be minimized.

  FIG. 10 shows the case of the control device 130 of the units 10, 60, and 70 in FIG. 6. The control device 130 has a power supply bus connected to the control power supply from the control power supply modules 101 to 104 at its power input port. A crystal oscillator 130a that is supplied via Ps, receives a control stop signal from the control power supply abnormality detection module 107 at its I / O port A, and generates an operation clock for the control device 130 at its clock port. And a reset IC 132 is connected to the reset port.

  When the control stop signal input to the I / O port A changes from the H level to the L level, the control device 130 changes the setting of the internal register to minimize the operation clock input from the crystal oscillator 130a. Change to make the operation similar to the stopped state.

  In the above description, the control device 130 changes the operation clock to the minimum when the control stop signal input to the I / O port A changes from the H level to the L level, but has a power saving mode. If it is, it may be shifted to the power saving mode.

  In the above description, the control device 130 has been described, but the same applies to the other control devices 131, 133, and 134.

  In this way, the operation of the units 10, 30, 60, 70 can be stopped easily and easily without adding special hardware.

  In FIG. 10, the control device 130 minimizes the operation clock of the clock input from the crystal oscillator 130a inside the control device 130. As shown in FIG. 11, the clock output of the crystal oscillator 130a. May be stopped.

  That is, in FIG. 11, the control device 130 is supplied with control power from the control power supply modules 101 to 104 via the power supply bus Ps to the power input port, and the control power supply abnormality is supplied to the I / O port A. A control stop signal is input from the detection module 107, a crystal oscillator 130a for generating an operation clock of the control device 130 is connected to the clock port, and a reset IC 132 is connected to the reset port.

  The crystal oscillator 130a includes an enable terminal, and stops output when the enable terminal is at the L level. The enable terminal of the crystal oscillator 130 a is connected to the I / O port B of the control device 130.

  The initial value of the I / O port B of the control device 130 is an input port (HZ state when viewed from the outside). At this time, a resistor is used to fix the I / O port B to the H level. Pulled up at 130b. Further, the control device 130 can operate the I / O port B as an output port by setting its internal register, and controls the I / O port B to output an H level in a normal state. .

  The control device 130 detects the logic of the control stop signal from the control power supply abnormality detection module 107 at the I / O port A, and when the control stop signal of the I / O port A changes from H level to L level, The I / O port B is set to L level, and the output of the crystal oscillator 130a is stopped.

  In the above description, the control device 130 has been described, but the same applies to the other control devices 131, 133, and 134.

  In this way, the operation of the units 10, 30, 60, 70 can be stopped easily and easily without adding special hardware.

  Furthermore, in FIG. 6 to FIG. 11, the operation of the control device, that is, the operation of the target units 10, 30, 60, 70 is stopped by shutting off the power supply (power) or stopping the operation clock. The method of stopping the operation of 10, 30, 60, 70 is not limited to the above method. For example, as shown in FIG. 12 for the control device 130, the control devices of the units 10, 30, 60, 70 are This may be done by forcibly resetting.

  In FIG. 12, the control device 130 is supplied with control power from the control power supply modules 101 to 104 via the power supply bus Ps to the power supply input port, and the control power supply abnormality detection module is supplied to the I / O port A. A control stop signal from 107 is input, and a reset IC 132 is connected to the reset port.

  The reset IC 132 is an open drain output, and the output of the reset IC 132 is connected to the collector of the transistor 130c. As the preceding stage, the collector of the transistor 130d is connected to the base of the transistor 130c.

  The base of the transistor 130d is connected to the I / O port B of the control device 130. When the I / O port B becomes L level, the transistor 130d and the transistor 130c are turned on, and the reset terminal of the control device 130 is L level.

  In the control device 130, the initial value of the I / O port B is an input port (in the HZ state when viewed from the outside). At this time, the I / O port B is fixed to the H level. Pulled up with a resistor. Further, the control device 130 operates the I / O port B as an output port by setting the internal register. The I / O port B is controlled to output the H level in the normal state.

  The control device 130 detects the logic of the control stop signal from the control power supply abnormality detection module 107 at the I / O port A.

  When the control power supply abnormality detection module 107 recognizes the occurrence of an abnormality in the power supply unit 100 and sets the control stop signal for the target units 10, 30, 60, 70 to L level, the control device 130 causes the I / O port A to be H A change from the level to the L level is detected. When the control stop signal of the I / O port A changes from the H level to the L level, the control device 130 sets the I / O port B to the L level, and the I / O port B becomes L level. 130d and the transistor 130c are turned on, the reset terminal of the control device 130 becomes L level, and the control device 130 is forcibly reset.

  In this way, the operations of the units 10, 30, 60, and 70 can be easily and easily stopped using relatively simple hardware.

  FIGS. 13 and 14 are diagrams showing a second embodiment of the power supply control device and the electric device according to the present invention, and FIG. 13 is a composite device to which the second embodiment of the power supply control device and the electric device according to the present invention is applied. FIG.

  In the composite apparatus 140 according to the present embodiment, the controller 143 is a power supply that stops the operation of the functional modules other than the functional module that is used in the operation mode when an abnormality occurs in the power supply unit 100 among the plurality of functional modules (units). It functions as a control means.

  The composite device 140 of this embodiment is applied to the same composite device as the composite device 1 of the first embodiment. In the description of this embodiment, the composite device 1 of the first embodiment is the same as the composite device 1 of the first embodiment. Similar components are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 13, the composite apparatus 140 includes the scanner engine unit 10, the plotter engine unit 30, and the FAX unit 60 similar to those in the first embodiment as function modules, and also includes an HDD 80, a power supply unit 141, a controller. (Control function module) 143, an operation display unit 144, and the like.

  The power supply unit 141 includes control power supply modules 101 to 104, a drive power supply module 105, and a monitoring power supply module 106 similar to those of the power supply unit 100 of the first embodiment, and a control power supply abnormality detection module (abnormality). Detection means) 142.

  Each of the control power supply modules 101 to 104 generates a control power supply from an external commercial power supply and supplies the control power to each unit 10, 30, 60, 143 of the composite device 140 via the control power supply bus Ps. At the same time, the output power supply voltage is input to the control power supply abnormality detection module 142.

  The control power supply abnormality detection module 142 houses the same circuit parts as the control power supply abnormality detection circuits 111 to 114 and the NAND circuit 115 of the control power supply abnormality detection module 107 of the first embodiment, and the control power supply If the output voltage of the modules 101 to 104 is normal, an H (high) level control power supply abnormality detection signal is output to the controller 143, and the output voltage of the input control power supply modules 101 to 104 is abnormal. If there is, an L (low) level control power supply abnormality detection signal is output to the controller 143.

  The controller 143 controls each part of the composite device 140 to execute the function as the composite device 140, and a control power supply abnormality detection signal is inputted in parallel to an I / O port of a built-in CPU (Central Processing Unit). As a result, the CPU executes the same function as the mode determination unit 116 of the control power supply abnormality detection module 107 of the first embodiment to execute the function as the power supply control means to control the operation of the HDD 80, and The scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the operation display unit 144 are controlled to output a control power supply abnormality detection signal.

  That is, the controller 143 recognizes the current operation mode of the multifunction apparatus 140, and in the recognized operation mode, the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, the controller 70, the HDD 80, and the operation display unit 144. Knowing which units are running and in standby. The controller 143 sets the control stop signal to the H level as an initial value, and outputs the control stop signal of the H level to the units 10, 30, 60, 70, in the normal state, including when the operation mode of the composite apparatus 1 is not fixed. 144, the control power supply abnormality detection signal from the control power supply abnormality detection module 142 is determined, and the control power supply abnormality detection signal is at L level, that is, at least one of the control power supply modules 101 to 104 When the output of one control power supply module 101-104 is abnormal, an L level control stop signal is output to the standby units 10, 30, 60, 70, 144, and the operation mode The operation of the HDD 80 is controlled according to the above.

  The composite apparatus 140 uses the output power of the monitoring power supply module 106 as the drive power supply for the control power supply abnormality detection module 142 and the controller 143.

  The composite apparatus 140 detects whether or not the control power supply modules 101 to 104 are abnormal by the control power supply abnormality detection module 142, and when the control power supply abnormality detection module 142 detects an abnormality of the control power supply modules 101 to 104. The controller 432 is unnecessary depending on the operation mode of the composite device 140 when the abnormality is detected in the control power supply modules 101 to 104 among the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the operation display unit 144. The operations of the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the operation display unit 144 are stopped.

The composite apparatus 140 of this embodiment performs communication between the units centering on the controller 143 as shown in FIG. 14, and the image data bus is similar to the case shown in FIG.
Although shared by the units 110, 30, 60, 143, and 144, the entire system of the composite apparatus 140 is controlled by the controller 143 that manages and controls the HDD 80 that stores image data. That is, the HDD 80 may be used in any of the copy mode, print mode, scan mode, facsimile transmission mode, and facsimile reception mode, and the controller 143 that controls the HDD 80 can always be an operating unit. When the user inputs a mode to the multifunction apparatus 140, the operation is performed via the operation display unit 144. Therefore, the controller 143 communicates with the controller 143 so that the controller 143 operates the multifunction apparatus 140. Know the mode.

  Therefore, the multifunction device 140 of this embodiment requires the controller 143 to grasp the mode of the multifunction device 140 functionally. That is, since the function of the mode determination unit 116 of the control power supply abnormality detection module 107 of the first embodiment and the function of the controller 143 overlap, the controller 143 has the function itself of the control power supply abnormality detection module 107, or at least the mode. By combining the function of the determination unit 116, the system configuration can be simplified and simplified.

  As described above, since the controller 143 has the function itself of the control power supply abnormality detection module 107 of the first embodiment, or at least the function of the mode determination unit 116, the composite device 140 of the present embodiment can be used. The overall system configuration of 140 can be simplified and simplified.

  In FIG. 13, the power supply unit 141 includes a control power supply abnormality detection circuit 111 including the control power supply abnormality detection circuits 111 to 114 and the NAND circuit 115 of the control power supply abnormality detection module 107 of the first embodiment. Although the mode determination unit 116 of the first embodiment is provided in the controller 143, the mode determination unit 116 including the control power supply abnormality detection module 142 may also be provided in the controller 143.

  Further, the control power supply abnormality detection module 142 is not limited to the one shown in FIG. 5 and may be one shown in FIG. 8 or FIG.

  FIG. 15 is a block diagram of the main part of a composite apparatus 150 to which a third embodiment of the power supply control apparatus and the electrical apparatus of the present invention is applied.

  In the composite apparatus 150 according to the present exemplary embodiment, the operation display unit 153 causes the power display control to stop the operation of the functional modules other than the functional module used in the operation mode when the abnormality occurs in the power supply unit 150 among the plurality of functional modules. It functions as a means.

  The composite device 150 of this embodiment is applied to the same composite device as the composite device 1 of the first embodiment. In the description of this embodiment, the composite device 1 of the first embodiment is the same as the composite device 1 of the first embodiment. Similar components are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 15, the composite apparatus 150 includes a scanner engine unit 10, a plotter engine unit 30, a FAX unit 60, and a controller 70 similar to those in the first embodiment as functional modules, an HDD 80, and a power supply unit. 151, a control power supply abnormality detection module 152 in the power supply unit 151, an operation display unit (operation function module) 153, and the like.

  The power supply unit 151 includes control power supply modules 101 to 104, a drive power supply module 105, and a monitoring power supply module 106 similar to the power supply unit 100 of the first embodiment, and a control power supply abnormality detection module (abnormality). Detection means) 152 is provided.

  Each control power supply module 101-104 generates a control power supply from an external commercial power supply, and controls each part 10, 30, 60, 70, 153 of the composite apparatus 150 via the control power supply bus Ps. While supplying it as electric power, the output power supply voltage is input to the control power supply abnormality detection module 152.

  The control power supply abnormality detection module 152 contains the same circuit portions as those of the control power supply abnormality detection circuits 111 to 114 and the NAND circuit 115 of the control power supply abnormality detection module 107 of the first embodiment. When the output voltages of the modules 101 to 104 are normal, an H (high) level control power supply abnormality detection signal is output to the operation display unit 153, and the input output voltages of the control power supply modules 101 to 104 are If abnormal, an L (low) level control power supply abnormality detection signal is output to the operation display unit 153.

  The operation display unit 153 includes an operation key for causing the multifunction device 150 to perform various operations, a content input from the operation key, and a display unit (for example, an LCD) that displays various information notified from the multifunction device 150 to the user. Is provided.

  The composite apparatus 150 uses the output power of the monitoring power supply module 106 as the drive power supply for the control power supply abnormality detection module 152 and the operation display unit 153.

  The multi-function device 150 switches and selects a copy function, a printer function, a scan function, and a facsimile function sequentially by operating an application switching key of the operation display unit 153 or touching a function button displayed on an LCD having a touch panel. The copy mode is selected when the copy function is selected, the print mode is selected when the printer function is selected, the scan mode is selected when the scan function is selected, and the facsimile mode is selected when the facsimile mode is selected. Become. The operation display unit 153 performs an operation function as the operation display unit 153 under the control of the built-in CPU, and also functions as a plurality of functional modules (scanner engine unit 10, plotter engine unit 30, FAX unit 60, and the like). Of the controller 70), the power supply unit 150 functions as a power supply control unit that stops the operation of units other than the unit used in the operation mode when an abnormality occurs.

  The operation display unit 153 has a built-in CPU for controlling execution of the function as the operation display unit 153, and the control power supply abnormality detection module 152 supplies a control power supply in parallel to the I / O port of the built-in CPU. When the abnormality detection signal is input, the CPU of the operation display unit 153 executes the function as the mode determination unit 116 of the control power supply abnormality detection module 107 of the first embodiment, and the scanner engine unit 10 and the plotter engine unit. 30, control output of the control power supply abnormality detection signal to the FAX unit 60 and the controller 70.

  That is, the operation display unit 153 recognizes the current operation mode of the multifunction apparatus 140, and is a unit that is operating in the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70 in the recognized operation mode. , Keep track of waiting units. The operation display unit 153 sets the control stop signal to the H level as an initial value, and outputs the control stop signal at the H level in units 10, 30, 60, and the normal state, including when the operation mode of the composite apparatus 150 is not fixed. 70, the control power supply abnormality detection signal from the NAND circuit 115 of the control power supply abnormality detection module 152 is determined, and if the control power supply abnormality detection signal is at L level, that is, the control power supply modules 101 to 101 If the output of at least one of the control power supply modules 101 to 104 out of 104 is abnormal, an L level control stop signal is output to the units 10, 30, 60, and 70 that are on standby.

  The composite apparatus 150 detects whether or not the control power supply modules 101 to 104 are abnormal by the control power supply abnormality detection module 152, and when the control power supply abnormality detection module 152 detects an abnormality of the control power supply modules 101 to 104. The operation display unit 153 is unnecessary depending on the operation mode of the composite apparatus 150 when the abnormality is detected in the control power supply modules 101 to 104 among the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70. The operations of the scanner engine unit 10, the plotter engine unit 30, the FAX unit 60, and the controller 70 are stopped.

  Further, the operation display unit 153 functionally grasps the mode of the composite apparatus 150, displays what the user has selected on the display unit, and displays the network such as the print mode and the facsimile reception mode. Display on the display section that the processing from is being executed.

  And since the function of the mode determination part 116 and the function of the operation display part 153 of the power supply abnormality detection module 107 for control of the composite apparatus 150 of a 1st Example overlaps with the function display part 153, the operation display part 153 is the following. The function is executed by combining the function itself of the control power supply abnormality detection module 107 or at least the function of the mode determination unit 116. In this way, the system configuration can be simplified and simplified.

  As described above, in the composite apparatus 150 of the present embodiment, the operation display unit 153 has the function itself of the control power supply abnormality detection module 107 of the first embodiment, or at least the function of the mode determination unit 116. The system configuration of the entire composite apparatus 150 can be simplified and simplified.

  In FIG. 15, the control power supply abnormality detection module 152 having the same circuit parts as those of the control power supply abnormality detection circuits 111 to 114 and the NAND circuit 115 of the control power supply abnormality detection module 107 of the first embodiment is turned on. A circuit unit similar to the mode determination unit 116 of the first embodiment is provided in the operation display unit 153, but the mode determination unit 116 including the control power supply abnormality detection module 152 is also operated. The display unit 153 may be provided.

  Further, the control power supply abnormality detection module 152 is not limited to the one shown in FIG. 5, but may be the one shown in FIG. 8 or FIG.

  FIG. 16 is a block diagram showing the principal parts of a composite apparatus 160 to which the fourth embodiment of the power supply control apparatus and the electric apparatus according to the present invention is applied.

  The composite device 160 according to the present embodiment includes a unit that functions as a power supply control unit that stops the operation of functional modules other than the functional module that is used in the operation mode when an abnormality occurs in the power supply unit 160 among the plurality of functional modules. It varies depending on the operation mode.

  The composite device 160 of this embodiment is applied to a composite device similar to the composite device 1 of the first embodiment. In the description of this embodiment, the composite device 1 of the first embodiment is the same as the composite device 1 of the first embodiment. Similar components are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 16, the multifunction device 160 includes a scanner engine unit 10 a, a plotter engine unit 30 a, a FAX unit 60 a, a controller 70 a, an HDD 80, and an operation display unit 163 as function modules, and a power source unit 161 and a power source unit 161. The control power supply abnormality detection module 162 is provided.

  The power supply unit 161 includes control power supply modules 101 to 104 and a drive power supply module 105 similar to those of the power supply unit 100 of the first embodiment, and includes a control power supply abnormality detection module 162. The power supply module 106 is not provided.

  Each of the control power supply modules 101 to 104 generates a control power supply from an external commercial power supply, and controls each unit 10a, 30a, 60a, 70a, 163 of the composite apparatus 160 via the control power supply bus Ps. And the output power supply voltage is input to the control power supply abnormality detection module 162.

  The control power supply abnormality detection module 162 houses circuit parts similar to those of the control power supply abnormality detection circuits 111 to 114 and the NAND circuit 115 of the control power supply abnormality detection module 107 of the first embodiment. When the output voltages of the modules 101 to 104 are normal, an H (high) level control power supply abnormality detection signal is output to each unit 10a, 30a, 60a, 70a, 163, and is input to the control power supply module If the output voltages 101 to 104 are abnormal, an L (low) level control power abnormality detection signal is output to each unit 10a, 30a, 60a, 70a, 163.

  The scanner engine unit 10a, the plotter engine unit 30a, the FAX unit 60a, the controller 70a, and the operation display unit 163 include a plurality of units (scanner engine unit 10a, plotter engine unit 30a, FAX) according to the operation mode of the composite apparatus 160. Of the unit 60a, the controller 70a, and the operation display unit 163), the power control function, which is a function for stopping the operation of the functional module other than the functional module used in the operation mode when the power unit 160 is abnormal, is switched. Execute.

  That is, in the copy mode, the print mode, the scan mode, the facsimile transmission mode, and the facsimile reception mode, when the HDD 80 is not used, the minimum operation units required in each operation mode are as follows. That is, the operation unit in the copy mode is the plotter engine unit 30a and the scanner engine unit 10a, the operation unit in the print mode is the controller 70a and the plotter engine unit 30, and the operation unit in the scan mode is the scanner engine unit 10a and the controller. 70a, the operation units in the facsimile transmission mode are the FAX unit 60a and the scanner engine unit 10a, and the operation units in the facsimile reception mode are the FAX unit 60a and the plotter engine unit 30a.

  As described above, since the minimum required operating unit differs depending on each operation mode, the control power supply abnormality detection module 162 is a circuit preceding the NAND circuit 115 of the control power supply abnormality detection module 107 shown in FIG. Each unit (scanner engine unit 10a, plotter engine unit 30a, FAX unit 60a, controller 70a, and operation display unit 163) serves as the same circuit as the mode determination unit 116.

  In the composite apparatus 160, the scanner engine unit 10a, the plotter engine unit 30a, the FAX unit 60a, the controller 70a, and the operation display unit 163 are respectively connected by a control stop signal line 164, and the control power supply abnormality detection module 162 is controlled. An L level control stop signal for the standby unit (scanner engine unit 10a, plotter engine unit 30a, FAX unit 60a, controller 70a, and operation display unit 163) is detected by detecting the logic (H / L) of the power supply abnormality detection signal. A function of the mode determination unit 116 that generates and outputs to other units via the control stop signal line 164, that is, a unit that executes a power control function (scanner engine unit 10a, plotter engine unit 30a, FAX unit 60). , The controller 70a and the operation display unit 163) is switched in each operating mode.

  For example, when the copy mode is selected, the unit that executes the power control function is the plotter engine unit 30a, and when the abnormality of the power supply device 160 is recognized, the plotter engine 30a is an active unit in the copy mode. In order to give priority to the continuation of the jobs of the unit 30a and the scanner engine unit 10a, an L level control stop signal is output to the controller 70a and the FAX unit 60a, which are standby units, via the control stop signal destination 164. .

  Similarly, when the print mode is selected, the multifunction apparatus 160 sets the unit that executes the power control function as the controller 70a, and when the scan mode is selected, the unit that executes the power control function is the scanner engine. When the unit 10a is selected and the facsimile transmission mode and the facsimile reception mode are selected, the unit that executes the power control function is the FAX unit 60a.

  In addition to the above operation mode, the composite apparatus 160 has a state of waiting for a job from the user or the network, that is, a standby mode. In this standby mode, a unit for executing the power control function is required.

  However, in the standby mode, since there is no operation job currently being executed, there is no unit that should prioritize the operation when the occurrence of an abnormality in the power supply device 160 is recognized.

  Therefore, in the standby mode, the multifunction device 160 sets the unit that executes the power control function as the operation display unit 163, and when the operation display unit 163 detects the occurrence of an abnormality in the power supply device 160, After outputting the L-level control stop signal, the failure of the power supply device 160 is notified to a display unit such as an LCD attached to the operation display unit 163.

  As described above, the composite device 160 of this embodiment prevents the load from being concentrated on some units and the power supply unit 161 by distributing the power control function to the units 10a, 30a, 60a, 70a, and 163. However, the operation of at least the units 10a, 30a, 60a, 70a, 80 used in the operation mode being executed can be secured and the execution of the operation mode can be continued. Even if a failure or the like occurs in the power supply modules 101 to 104, the operation job being executed can be reliably executed to improve the usability.

  The invention made by the present inventor has been specifically described based on the preferred embodiments. However, the present invention is not limited to the above, and various modifications can be made without departing from the scope of the invention. Needless to say.

  The present invention can be applied to a power supply control device and an electrical device that prioritize and operate a functional module even if an abnormality occurs in a part of a plurality of power supply output systems of a power supply unit.

BRIEF DESCRIPTION OF THE DRAWINGS The front schematic block diagram of the composite apparatus to which the 1st Example of the power supply control apparatus of this invention and an electric equipment is applied. FIG. 2 is a schematic block configuration diagram of the composite apparatus in FIG. 1. The block block diagram of the power supply part of FIG. FIG. 4 is a circuit configuration diagram of the control power supply abnormality detection module of FIG. 3. FIG. 5 is a circuit configuration diagram of the control power supply abnormality detection circuit of FIG. 4. FIG. 4 is a main part circuit diagram showing a relay for power cutoff of each unit other than the plotter engine unit of FIGS. 2 and 3. FIG. 4 is a circuit diagram illustrating a main part of a power cutoff relay of the plotter engine unit of FIGS. 2 and 3. FIG. 5 is a circuit diagram showing another configuration example of the control power supply abnormality detection circuit of FIG. 4. FIG. 5 is a circuit diagram showing a configuration example for detecting an abnormality due to a temperature of a control power supply module of the control power supply abnormality detection circuit of FIG. 4. FIG. 4 is a main part circuit diagram in a case where the operation of the device of the unit of FIGS. 2 and 3 is minimized and the operation is stopped. FIG. 4 is a main part circuit diagram in a case where the operation clock of the device of the unit of FIGS. 2 and 3 is stopped to stop the operation. FIG. 4 is a main part circuit diagram in a case where operation is stopped by resetting the device of the unit of FIGS. 2 and 3. The front schematic block diagram of the composite apparatus to which 2nd Example of the power supply control apparatus of this invention and an electric equipment is applied. FIG. 14 is a block diagram of the composite apparatus in FIG. 13. The front schematic structure figure of the compound apparatus to which the 3rd example of the power supply control device and electric equipment of the present invention is applied. The front schematic block diagram of the composite apparatus to which the 4th Example of the power supply control apparatus of this invention and an electric equipment is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Composite apparatus 2 Main body housing | casing 3 Contact glass 4 Lamp 5 1st mirror 6 2nd mirror 7 3rd mirror 8 Lens 9 CCD
10 Scanner engine unit 20 ADF
DESCRIPTION OF SYMBOLS 21 Document stand 22 Feed roller 23 Feed belt 24 Conveyance roller 25 Discharge roller 26 Discharge stand 27 Document set detection sensor 30 Plotter engine unit 31 Photoconductor 32 Writing unit 33 Developing unit 34 Conveyor belt 35 Fixing unit 36 Conveyance switching Paper discharge unit 37 Double-sided paper entry conveyance path 38 Reversed paper discharge conveyance path 39 Reverse unit 40 Double-sided conveyance unit 41 Paper feed unit group 42 Carry unit 43 Paper discharge tray 51-53 Paper feed unit 51a-53a Paper feed tray 51b-53b Paper roller section 60 FAX unit 70 Controller 80 Hard disk (HDD)
90 Image data bus 101-104 Control power supply module 101S Thermistor 105 Drive power supply module 106 Monitoring power supply module 107 Control power supply abnormality detection module 111-114, 111a, 111b Control power supply abnormality detection circuit 111AD AND circuit 115 NAND circuit 116 Mode determination unit 111Cp to 1114Cp, 111Cp2, 111Cp3 Comparator 111Ra, 111Rb to 114Ra to 114Rb Voltage dividing resistor 111Ra2, 111Rb2 Voltage dividing resistor 111Ra3, 111Rb3 Voltage dividing resistor 111Rd resistor 114Rc to 114Rc resistor 120 Relay 130, 131 Control device 130a 131 Resistor 130c, 130d Transistor 132 Reset IC
133, 134 Control device 135 Reset IC
136 Load Ps Power Supply Bus Pd Power Supply Bus 140 Composite Device 141 Power Supply Unit 142 Control Power Abnormality Detection Module 143 Controller 144 Operation Display Unit 150 Composite Device 151 Power Supply Unit 151 Power Supply Unit 152 Control Power Supply Abnormality Detection Module 153 Operation Display Unit 160 Composite Device 10a Scanner engine unit 30a Plotter engine unit 60a FAX unit 70a Controller 80 HDD
163 Operation display unit 161 Power supply unit 162 Control power supply abnormality detection module 163 Operation display unit

Claims (11)

  Power control for controlling power consumption in the functional module that executes various operation modes by operating any functional module among a plurality of functional modules that operate by receiving power supply from a power supply unit having a plurality of power output systems An abnormality detecting means for detecting whether or not an abnormality has occurred in each power output system of the power supply unit; and when the abnormality detection means detects an abnormality in a part of the power output system of the power supply unit, the plurality of A power control unit for stopping the operation of the functional modules other than the functional module used in the operation mode when the abnormality occurs.   In an electric device having a plurality of operation modes to be executed using an arbitrary function module among a plurality of function modules that operate by receiving power supply from a power supply unit having a plurality of power output systems, each power output of the power supply unit An abnormality detection means for detecting whether or not an abnormality has occurred in the system, and when the abnormality detection means detects an occurrence of an abnormality in a part of the power output system of the power supply unit, an operation at the occurrence of the abnormality among the plurality of functional modules And an electric power control means for stopping the operation of the functional modules other than the functional modules used in the mode.   The power supply control device according to claim 1, wherein the abnormality detection unit detects whether or not an abnormality has occurred in each power output system based on an output voltage of each power output system of the power supply unit. Electrical equipment.   The power supply control device according to claim 1, wherein the abnormality detection unit detects whether or not an abnormality has occurred in each power output system based on a temperature of each power output system of the power supply unit. Electrical equipment.   5. The power supply according to claim 1, wherein the power control unit cuts off the supply of power from the power supply unit to the functional module and stops the operation of the functional module. 6. Control device or electrical equipment.   The functional module includes a functional module having a control system and a drive load system, and the power supply unit supplies power to a control system power output system that supplies power to the control system of the functional module and the drive load system A drive system power output system, wherein the abnormality detection unit detects whether or not an abnormality has occurred in the control system power output system of the power supply unit; The power supply from the output system to the drive system load system of the functional module is cut off, and then the power supply from the control system power output system of the power supply unit to the control system of the functional module is cut off. The power supply control device or electrical device according to any one of claims 1 to 4.   5. The power control device according to claim 1, wherein the power control unit lowers or stops an operation clock of the functional module to stop the operation of the functional module. 6. machine.   5. The power supply control device or electric device according to claim 1, wherein the power supply control unit stops the operation of the functional module by resetting the functional module. 6.   The power control according to any one of claims 1 to 8, wherein the power control means is incorporated in a control function module that controls the operation of another function module among the plurality of function modules. Equipment or electrical equipment.   The power supply according to any one of claims 1 to 8, wherein the power supply control unit is incorporated in an operation function module for instructing operation of another function module among the plurality of function modules. Control device or electrical equipment. The power control means is incorporated in the plurality of function modules, and the function module in which the power control means is incorporated is switched according to the operation mode, and the power control function is executed by the power control means. The power supply control device or electrical device according to any one of claims 1 to 8, wherein

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