JP2019074981A - Information equipment - Google Patents

Abstract

To provide information equipment that suppresses shortening of life of a contact such as a relay in a discharge circuit even if charge holding means has a large capacity when it is necessary to discharge a held charge of the charge holding means based on a discharge instruction by a user, in information equipment using the charge holding means capable of holding a charge supplied from an external power supply and capable of supplying the held charge to an information processor main body.SOLUTION: Information equipment includes: charge holding means 702 capable of holding a charge supplied from an external power supply 900 and supplying the held charge to an information processor main body 20A; one or more devices 301, 800 with relatively large power consumption; and control means 121 that discharges, based on a discharge instruction by a user, the charge, by shutting off a feed path during normal operation to one or more of the devices, and connecting the charge holding means and the device to supply the charge charged in the charge holding means to the device and operate the device.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information apparatus such as an image forming apparatus, and more particularly to information holding charge supplied from an external power supply and having charge holding means such as a large capacity capacitor capable of supplying the held charge to the information apparatus main body. It relates to the equipment.

  In an image forming apparatus such as MFP (Multi Function Peripheral) which is a multifunction digital multifunction peripheral, and other information devices, a power supply circuit for inputting power from an external power supply is smoothed to hold charges supplied from the external power supply. In general, charge holding means such as capacitors are provided. Further, when it is necessary to shut off the external power supply and discharge the charge held in the charge holding means, a relay or the like is operated to form a discharge circuit, and the charge holding means is discharged by the discharge circuit. Things are also being done.

  By the way, along with the widespread use of hybrid vehicles and electric vehicles, recently, capacitors having a large capacity of several tens F or more have been developed as capacitors which are charge holding means. By using such a large-capacity capacitor as a component of the power supply circuit of an information device, it is possible to supply standby power during power saving for a long time, and stabilize power supply to devices that consume instantaneous large current at startup. It is possible to reduce startup time, and it can be expected.

JP, 2009-17739, A JP 2008-58991 A JP, 2008-26427, A

  However, in the large capacity charge holding means as described above, the amount of charge stored and held in this is also extremely large, so the remaining power after the interruption of the external power supply is also extremely large. When it is necessary to discharge the charge held in the charge holding means as in the prior art by operating a relay or the like to form and discharge a discharge circuit, the problem of shortening the life of the relay contact etc. Occurs.

  Patent Document 1 is a remote management system including a single or a plurality of electronic devices having a storage battery, and a management device connected to the electronic devices via a communication line to manage the electronic devices. The management device acquires a discharge start timing of the storage battery based on the storage unit that stores a maintenance schedule of the electronic device and the maintenance schedule, and when the discharge start timing arrives, the storage battery is transferred to the electronic device A first control unit for transmitting a discharge start command for starting discharge of the battery, and the electronic device includes a second control unit for starting discharge of the storage battery when the discharge start command is received; A system has been proposed.

  Further, Patent Document 2 shows an image forming apparatus including a main power supply for supplying power and an auxiliary power supply including a capacitor chargeable by the power supply from the main power supply, wherein the auxiliary power supply including the capacitor is charged. It is possible to switch between connection to a circuit and connection to a discharge circuit, and when a signal to turn off the power of the device is input, the capacitor is charged in a state connected to the charge circuit and then the power is turned off. An image forming apparatus has been proposed which is characterized in that

  Further, Patent Document 3 includes an auxiliary power supply unit including a chargeable and dischargeable storage unit, and a heating element that generates heat by power supply from the auxiliary power supply unit, and heats a medium on which a toner image is formed to record the recording medium. An image forming apparatus having a fixing means for fixing a toner image, the apparatus further comprising: an abnormality detecting means for detecting an abnormality of the image forming apparatus; and the auxiliary power supply means performs conduction and insulation exclusively to conduct electricity. The discharge circuit includes a discharge circuit for discharging the storage power of the storage means by grounding it and a discharge switching means for conducting or insulating the discharge circuit, wherein the discharge switching means detects the abnormality when the abnormality detection means detects the abnormality. An image forming apparatus has been proposed which is characterized in that

  However, the techniques described in these Patent Documents 1 to 3 do not relate to the technique for discharging the charge held in the large capacity charge holding means, and therefore, the charge holding means is held after the external power supply is shut off. In the method of operating the relay or the like to form and discharge the discharge circuit when it is necessary to discharge the charge, it is possible to provide a solution to the problem of shortening the life of the relay contact and the like. It was not a thing.

  The present invention has been made in view of such technical background, and uses charge holding means capable of holding the charge supplied from the external power supply and capable of supplying the held charge to the information processing apparatus main body. When it is necessary to discharge the charge held in the charge holding means based on the user's discharge instruction in the information equipment being used, even if the charge holding means has a large capacity, such as a relay in a discharge circuit An object of the present invention is to provide an information device in which shortening of the contact life is suppressed.

(1) Charge holding means capable of holding charges supplied from an external power supply and capable of supplying the held charges to the information processing apparatus main body, and one or more devices having relatively large power consumption; Based on the user's discharge instruction, the feed path during normal operation to one or more of the devices is cut off, and the charge holding means is connected to the device, and the charge stored in the charge holding means And control means for discharging the charge by operating the device by supplying the information to the device.
(2) The information device according to the above item 1, wherein the control means operates the device under a condition in which the discharge efficiency is emphasized, unlike the time of normal operation, at the time of charge discharge.
(3) A temperature measurement means for measuring the temperature of the device is provided, and the control means uses a setting value dedicated to the discharge of the charge as an operation threshold of the device based on the temperature measured by the temperature measurement means. The information apparatus according to any one of the above items 1 to 2, which controls the operation of the device at the time of charge discharge.
(4) The user's discharge instruction is an instruction from a device error cancellation start operation, and the control means shuts off the power supply path during normal operation to the device according to the device error level, and the charge retention The information device according to any one of the preceding claims 1 to 3, wherein the connection between the means and the device is performed.
(5) The information device according to the above (4), wherein the device is plural and the control means selects a device for discharging the charge from among the plurality of devices according to the location of the device error.
(6) The information apparatus according to any one of the above items 1 to 3, wherein the user's discharge instruction is at least one of an instruction from the apparatus main body or an instruction from the outside through the communication means.
(7) Only when the user's discharge instruction is an instruction from the apparatus main body and the user has the authority to perform discharge instruction, the control means cuts off the power supply path during normal operation to the device. The information device according to any one of the above 1 to 6, wherein the connection between the charge holding means and the device is performed.
(8) The information apparatus according to any one of the above items 1 to 7, wherein the control means changes the operation of the device at the time of charge discharge depending on the type of the user's discharge instruction.
(9) The information device is an image forming apparatus, and the image forming apparatus includes at least one of a fixing heater and an in-machine fan as one or more of the devices. Information equipment described.

  According to the invention described in the preceding paragraph (1), when there is a user's discharge instruction, the feed path during normal operation to one or more devices is cut off, and the charge holding means and the device are connected. By supplying the charge stored in the charge holding means to the device to operate the device, the charge held in the charge holding means is discharged through the device.

  That is, since the charge held in the charge holding means is discharged using a device with relatively large power consumption used in the information device, the relay in the case of discharging with a dedicated discharge circuit as in the prior art It is possible to solve the problem of reduced contact life.

  According to the invention described in the preceding paragraph (2), since the device is operated at the time of charge discharge unlike the condition at the time of normal operation and under the condition that the discharge efficiency is emphasized, more efficient discharge operation using the device can be performed. it can.

  According to the invention described in (3) above, the operation of the device at the time of charge discharge is controlled using the setting value dedicated to the time of discharge of the charge as the operation threshold of the device based on the temperature measured by the temperature measuring means. Thus, it is possible to perform an appropriate discharge operation using a device such as a fixing heater.

  According to the invention described in the preceding paragraph (4), when the user starts canceling the apparatus error, the discharging operation using the device is executed according to the level of the apparatus error.

  According to the invention described in the preceding paragraph (5), a device for discharging the charge is selected from the plurality of devices according to the location of the device error, so the device suitable for discharge is selected according to the location of the device error. can do.

  According to the invention described in (6), the discharging operation using the device is performed based on at least one of the user's discharge instruction from the apparatus main body and the user's discharge instruction from the outside through the communication means. It will be.

  According to the invention described in (7), the discharging operation using the device is performed only when the user's discharge instruction is an instruction from the apparatus main body and the user has the authority to perform the discharge instruction. It will be.

  According to the invention described in the preceding paragraph (8), the operation of the device at the time of charge discharge can be changed according to the type of discharge instruction by the user.

  According to the invention described in item (9), it is possible to discharge the charge held in the charge holding means by using at least one of the fixing heater and the in-machine fan of the image forming apparatus.

FIG. 1 is a schematic configuration diagram of an image forming apparatus as an information apparatus according to an embodiment of the present invention. It is a circuit diagram for demonstrating the structure of a power supply circuit and a discharge circuit. FIG. 2 is a block diagram showing a control system of a fixing heater and a fan centering on a CPU. FIG. 6 is a flow chart showing the operation of the image forming apparatus when discharging the charge charge of the capacitor using a fixing heater and a fan.

  Hereinafter, an embodiment of the present invention will be described based on the drawings.

  FIG. 1 is a schematic block diagram of an image forming apparatus 20 as an information apparatus according to an embodiment of the present invention.

  The image forming apparatus 20 is configured such that a sheet feeding unit 200 is disposed at the lower portion of the apparatus main body 20A, a color image forming unit 100 is disposed at the center, and a sheet discharging unit 600 is disposed at the upper portion. A sheet conveying path 206 for conveying a sheet (sheet) S fed out from the sheet feeding unit 200 upward is provided from the sheet feeding unit 200 to the sheet discharging unit 600.

  The color image forming unit 100 is horizontally hung between the drive and driven rollers 51 and 50 and runs in the direction of the arrow between the drive roller 51 and the driven roller 50 disposed substantially at the center of the apparatus main body 20A in the vertical direction. The intermediate transfer belt 60 is provided with image forming units 62Y, 62M, 62C, 62K of respective colors of yellow (Y), magenta (M), cyan (C), and black (K) arranged along the traveling direction. ing.

  The toner images created by the image forming units 62Y, 62M, 62C, and 62K are superimposed and transferred to the transfer belt 60, and the transfer end of the transfer belt 60 with respect to the sheet S being transported through the sheet transport path 206 (see FIG. At the middle right end, secondary transfer is performed, and the sheet S is fed to the fixing unit 300 to fix the toner image. The fixing unit 300 is provided with a fixing heater 301 for heating the fixing roller to a predetermined temperature.

  Each of the imaging units 62Y, 62M, 62C, and 62K forms an image by electrostatic copying, and includes a charger, four laser diodes, a polygon mirror, a scanning lens, and the like disposed around them. The exposure unit 40 includes the print head 21 and four reflection mirrors 22 and the like, the developing units 61Y, 61M, 61C, and 61K, a photosensitive drum, a transfer unit, and the like.

  The toner cartridges 70Y, 70M, 70C, 70K and the sub hoppers 80Y, 80M, 80C, 80K are provided as a replenishment mechanism for replenishing the developing devices 61Y, 61M, 61C, 61K of the image forming units 62Y, 62M, 62C, 62K with toner. Are disposed above the image forming units 62Y, 62M, 62C, and 62K.

  Reference numeral 400 denotes communication means with an external device, and 500 denotes an operation panel unit provided with a key unit and a display unit.

  Reference numeral 700 denotes a power supply circuit. In this embodiment, an alternating current input from a commercial power supply (AC 100V power supply) is converted into a direct current of a constant voltage to supply power to each load of the image processing apparatus 20.

  Further, in the device body 20A, one or more fans 800 for cooling the inside of the device body 20A by removing the heat generated from the power supply circuit 700 and other parts during operation are disposed.

  As shown in FIG. 2, the power supply circuit 700 includes a main switch 705 for connecting or disconnecting the AC 100 V power supply 900, a rectifying circuit 701 for converting an alternating current input into a direct current, and smoothing the output of the rectifying circuit 701 to charge. A capacitor (capacitor) 702 as charge holding means for holding the voltage, a relay type discharge circuit 703 connected in parallel with the capacitor 702, and a stabilized power supply circuit that switches the output of the capacitor 702 to obtain a constant voltage such as 5 V And a switch circuit 706 interposed between the rectifier circuit 701 and the capacitor 702. In this embodiment, a capacitor having a large capacity of, for example, several tens F, but not limited to, is used as the capacitor 702 in this embodiment.

  The relay type discharge circuit 703 is used under certain conditions when discharging the charge stored in the capacitor 702, and the relay is used to close the contacts to form a discharge circuit as in the prior art. Further, the switch circuit 706 is always on, and the circuit from the AC 100 V power supply 900 to the capacitor 702 is closed. However, the switch circuit 706 is off when canceling an error generated in the image forming apparatus 20, etc. The circuit from the AC 100 V power supply to the capacitor 702 is opened, and charging of the capacitor 100 from the AC 100 V power supply is stopped.

  The constant voltage output from the stabilized power supply circuit 704 is supplied to each load (main body side load) 110 in the image forming apparatus 20. One of the main-unit-side loads 110 is a control unit 120 that controls the entire image forming apparatus 20. The control unit 120 includes a ROM, a RAM, and the like (not shown) in addition to the CPU 121.

  Reference numeral 130 in FIG. 2 denotes a heater drive circuit for driving the fixing heater 301, and reference numeral 140 denotes a fan drive circuit for driving the fan 800.

  The heater drive circuit 130 is configured to be switched and connected to both the AC 100 V power supply 900 and the capacitor 702 by the first switching unit 150. That is, when the heater drive circuit 130 is switched to the AC 100 V power supply 900 side by the first switching unit 150, the heater drive circuit 130 is connected to the power supply line between the main switch 705 and the rectifier circuit 701, and the AC 100 V power supply 900. The fixing heater 301 is driven by the input power from On the other hand, when the heater drive circuit 130 is switched to the capacitor 702 side by the first switching unit 150, the heater drive circuit 130 is connected to both ends of the capacitor 702, and the electric charge held in the capacitor 702 To drive.

  Similarly to the heater drive circuit 130, the fan drive circuit 140 is also switched and connected to both the AC 100 V power supply 900 and the capacitor 702 by the second switching unit 160. That is, when the fan drive circuit 140 is switched to the AC 100 V power supply 900 side by the second switching unit 160, the fan drive circuit 140 is connected to the power supply line between the main switch 705 and the rectifier circuit 701 and the AC 100 V power supply 900. The fan 800 is driven by the input power from the On the other hand, when the fan drive circuit 140 is switched to the capacitor 702 side by the second switching unit 160, the fan drive circuit 140 is connected to both ends of the capacitor 702, and the electric charge held in the capacitor 702 drives the fan 800. Do.

  The switching operation of the first switching unit 150 and the second switching unit 160, and the operation of the heater driving circuit 130 and the fan driving circuit 140 are controlled by the CPU 121.

  Although the example of FIG. 2 shows the case where there is one fan 800, in the case of two or more fans, the fan drive circuit 140 and the second switching unit 160 are provided for each fan. Is desirable.

  Reference numeral 302 shown in FIG. 2 is a temperature sensor for detecting the temperature of the fixing heater 301, and the CPU 121 controls the driving of the fixing heater 301 by the heater driving circuit 130 based on the temperature detected by the temperature sensor 302.

  FIG. 3 is a block diagram showing a control system of the fixing heater 301 and the fan 800 centering on the CPU 120. As shown in FIG. In this embodiment, as described above, the CPU 121 of the control unit 120 controls the heater drive circuit 130, the fan drive circuit 140, the first switching unit 150, and the second switching unit 160, as well as the relay discharge circuit 703. And switch circuit 706 as well. Further, driving of the fixing heater 301 by the heater driving circuit 130 is performed based on the temperature of the fixing heater 301 detected by the temperature sensor 302.

  Furthermore, in this embodiment, a voltage monitor circuit 190 for detecting the voltage across the capacitor 702 is provided, for example, in the stabilized power supply circuit 704, and the CPU 121 controls the voltage across the capacitor 702 via the voltage monitor circuit 190. Is monitored to see if it has dropped to a certain value. And when it falls to a fixed value, the relay type discharge circuit 703 similar to the prior art is operated.

  Next, the normal operation of the image forming apparatus 20 and the operation when the user issues a discharge instruction will be described.

  The CPU 121 of the control unit 120 controls the first switching unit 150 and the second switching unit 160 so that the heater driving circuit 130 and the fan driving circuit 140 are always connected to the AC 100 V power supply 900 side, and the fan is driven. The circuit 140 is controlled to drive the fan 800. Further, at the time of printing, the heater driving circuit 130 is controlled to operate the fixing heater 301.

  When instructed by the user to discharge, the CPU 121 turns off the switch circuit 706 to shut off the power supply from the AC 100 V power supply 900 to the capacitor 702, and drives the fixing heater 301 by the heater drive circuit 130 and the fan drive circuit 140. The driving of the fan 800 is stopped. Then, at least one of the heater drive circuit 130 and the fan drive circuit 140 is switched to the capacitor 702 according to at least one of the fixing heater 301 and the fan 800 according to a device used for discharging the charge held in the capacitor 702. The first switching unit 150 and / or the second switching unit 160 are controlled to be connected.

  For example, when only the fixing heater 301 is used, the heater driving circuit 130 is switched to the capacitor 702 side by the first switching unit 150 to cut off the power feeding path from the AC 100 V power source 900 to the fixing heater 301 The control unit 130 controls the fixing heater to supply the charge of the capacitor 102 to the fixing heater 301. As a result, the charge of the capacitor 102 is gradually consumed by the fixing heater 301, the charge of the capacitor 102 is discharged, and the voltage across the capacitor 102 is gradually reduced.

  When only the fan 800 is used, the fan drive circuit 140 is switched to the capacitor 702 side by the second switching unit 160 to cut off the power supply path from the AC 100 V power source 900 to the fan 800 and the fan drive circuit 140 The control is performed to drive the fan 800, and the charge of the capacitor 102 is supplied to the fan 800. As a result, the charge of the capacitor 102 is gradually consumed by the drive of the fan 800, the charge of the capacitor 102 is discharged, and the voltage across the capacitor 102 gradually decreases.

  When both the fixing heater 301 and the fan 800 are used, the heater driving circuit 130 and the fan driving circuit 140 are switched to the capacitor 702 side by the first switching unit 150 and the second switching unit 160, and the heater driving circuit 130 and The fan drive circuit 140 is controlled to drive both the fixing heater 301 and the fan 800.

  When the condenser 702 is driven using the fixing heater 301 and / or the fan 800, it is preferable to operate under conditions in which the discharge efficiency is emphasized, unlike in the normal operation of the fixing heater 301 and / or the fan 800. For example, when the fixing heater 301 is used, the fixing operation at the time of printing is performed by PWM drive or intermittent drive to improve the efficiency with respect to power consumption, but in the forced discharge mode, the power factor is ignored to lengthen the energizing time. In addition, the set value of the temperature detected by the temperature sensor 302 is set as a dedicated set value for discharging that is higher than the temperature at the time of normal fixing operation, and efficient discharge operation can be achieved by heating within the range that does not exceed this set value. Let it go. When the fan 800 is used, the rotation speed is set to be larger than that in the normal operation so as to increase the power consumption.

  By the way, the discharge instruction by the user may be performed by displaying a dedicated button for the discharge instruction on the operation panel unit 500 of the image forming apparatus 20 and operating the button by the user, or a portable device such as a smartphone or a tablet terminal It may be performed on the image forming apparatus 20 by wireless communication based on the user operation of the terminal device. Alternatively, it may be determined that a discharge instruction has been issued when the main switch 705 is turned off. In this case, the switch circuit 706 may remain closed.

  In addition, the user's discharge instruction may be an instruction by the user to cancel the apparatus error of the image forming apparatus 20. For example, when an internal error occurs in the image forming apparatus 20 and a user who is a serviceman or the like performs an error release start operation to perform an internal inspection, the image forming apparatus 20 determines that a discharge instruction has been issued. good. As the apparatus error cancellation start operation, for example, an operation of opening the front door of the image forming apparatus 20 can be mentioned with the main switch 705 turned off.

  In the case of the instruction by the user for starting the cancellation of the apparatus error of the image forming apparatus 20, it may be determined whether to perform the discharge or not according to the level of the apparatus error. For example, when it is necessary to disassemble or check the operation of the internal device by a serviceman or the like, the discharging operation may be performed, and in the case of a slight error such as toner empty, the discharging operation may not be performed. A message may be displayed to wait for the release operation of the error until the end of the discharge.

  Further, depending on the location of the apparatus error, it may be selected which of the plurality of discharge devices such as the fixing heater 301 and the fan 800 is used to perform discharge. For example, in the case of a failure of fixing heater 301 or an error in a part near fixing heater 301, fan 800 is used, and in the case of a failure of fan 800 or an error in a part near fan 800, fixing heater 301 is used, etc. It is a condition. Further, which device is used to perform the discharge may be selected according to the discharge instruction (the content of the instruction) by the user. For example, it is configured to be able to set the time when the discharging operation is performed, use the fan 800 if it is a time when consideration for noise is unnecessary, and use the fixing heater 301 when the time is consideration. It is.

  Further, the discharge of the fixing heater 301, the fan 800, etc. is performed only when the user's discharge instruction is an instruction from the apparatus main body 20A and the user has an authority to allow the discharge instruction (for example, in the case of a service person). The capacitor 702 using the device may be discharged. It should be noted that whether or not the user has the right to perform the discharge instruction may be determined in advance based on user authentication at the time of login by registering in advance the user who has the right to perform the discharge instruction.

  FIG. 4 is a flowchart showing the operation of the image forming apparatus 20 when discharging the charge stored in the capacitor 702 using the fixing heater 301 and the fan 800. This operation is executed by the CPU 121 of the control unit 120 operating according to an operation program stored in a storage medium such as a ROM (not shown). Also, in this embodiment, the case where the device used for discharge is the fixing heater 301 or the fan 800 is shown.

  In step S01, it is determined whether or not the user has issued a discharge instruction. If not (NO in step S01), the process ends. If there is a discharge instruction (YES in step S01), the switch circuit 706 is turned off in step S02, and then in step S03, a device to be used for discharge is selected. When the fixing heater 301 is used (the fixing heater in step S03), the power supply path from the AC 100 V power source 900 to the fixing heater 301 is cut off by switching of the first switching unit 150 in step S04. Connect the route. Next, in step S05, the heater driving circuit 130 is operated to drive the fixing heater 301, and then the process proceeds to step S08. The fan drive circuit 140 is not operated. As described above, the driving of the fixing heater 301 by the heater driving circuit 130 is performed at a high temperature different from that of the normal fixing operation and by setting the energizing time to be long.

  On the other hand, when the fan 800 is used in step S03 (fan in step S03), the power supply path from the AC 100 V power supply 900 to the fan is cut off by switching of the second switching unit 160 in step S06. Connect the feed path. Next, in step S07, the fan drive circuit 140 is operated to drive the fan 800, and then the process proceeds to step S08. The heater drive circuit 130 is not operated.

  When both the fixing heater 301 and the fan 800 are used in step S03, although illustration is omitted, the fixing heater 301 and the AC 100 V power source 900 are switched by switching between the first switching unit 150 and the second switching unit 160. The feed path to the fan 800 is cut off, the feed path from the capacitor 702 is connected, and the heater drive circuit 130 and the fan drive circuit 140 are operated to drive the fixing heater 301 and the fan 800, and then in step S08. move on.

  In step S08, it is determined based on the voltage detected by voltage monitor circuit 190 whether the voltage of capacitor 702 has dropped to a predetermined voltage due to discharge. If the voltage does not decrease to the predetermined voltage (NO in step S08), the process waits until the voltage decreases. If the voltage has dropped to a predetermined voltage (YES in step S 08), the charge of capacitor 702 is discharged through relay discharge circuit 703 similar to that of the prior art. At this time, the discharge using the fixing heater 301 and / or the fan 800 may be continued, or may be stopped at the start of discharge by the relay discharge circuit 703 or after the start.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment.

  For example, although the case where the information device is the image forming apparatus 20 has been described, a device that does not need to be the image forming apparatus 20 and can use a large capacity capacitor capable of holding electric charge and uses it for normal operation The present invention is applicable to all information devices that can be used to discharge a capacitor.

20 image forming apparatus 20A apparatus main body 120 control unit 121 CPU
130 heater drive circuit 140 fan drive circuit 150 first switching unit 160 second switching unit 301 fixing heater 302 temperature sensor 700 power supply circuit 702 capacitor 800 fan 900 external power supply

Claims (9)

Charge holding means capable of holding charges supplied from an external power supply and capable of supplying the held charges to the information processing apparatus main body;
One or more devices with relatively large power consumption;
Based on the user's discharge instruction, the feed path during normal operation to one or more of the devices is cut off, and the charge holding means is connected to the device, and the charge stored in the charge holding means Control means for discharging the charge by supplying the device to the device to operate the device;
An information device characterized by comprising.   2. The information apparatus according to claim 1, wherein the control means operates the device under a condition in which the discharge efficiency is emphasized, unlike the time of normal operation, at the time of charge discharge.   The device further comprises temperature measuring means for measuring the temperature of the device, wherein the control means uses a dedicated setting value for discharging the charge as an operation threshold of the device based on the temperature measured by the temperature measuring means. The information device according to claim 1, which controls the operation of the device at the time of discharge.   The user's discharge instruction is an instruction from a device error cancellation start operation, and the control unit shuts off the power supply path during the normal operation to the device according to the level of the device error, and the charge holding unit and the charge holding unit The information device according to any one of claims 1 to 3, which performs connection with a device.   5. The information apparatus according to claim 4, wherein the device is plural and the control means selects a device which discharges the charge from among the plurality of devices according to the location of the device error.   The information apparatus according to any one of claims 1 to 5, wherein the discharge instruction of the user is at least one of an instruction from the apparatus main body and an instruction from the outside through the communication means.   Only when the user's discharge instruction is an instruction from the apparatus main body and the user has the authority to perform discharge instruction, the control means shuts off the power supply path during normal operation to the device, and The information apparatus according to any one of claims 1 to 6, wherein connection between the charge holding means and the device is performed.   The information apparatus according to any one of claims 1 to 7, wherein the control means changes the operation of the device at the time of charge discharge according to the type of the user's discharge instruction. The information device is an image forming apparatus,
The information apparatus according to any one of claims 1 to 8, wherein the image forming apparatus includes at least one of a fixing heater and an in-machine fan as the one or more devices.