JP4066186B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device having a configuration that can be controlled by a remote control device such as an infrared transmitter.

  In a general electronic device, for example, a recording device such as a facsimile or an ink jet recording device is used with the power on for a long time, but it can be started at any time from the operation time of the electronic device. Some electronic devices are used in situations where the waiting time is overwhelmingly longer. When such an electronic device is not used for a certain period of time, it shifts from a normal operation mode that is rated power consumption to a standby mode (power saving mode) in which the power consumption inside the electronic device is reduced. Generally it is. Specifically, the power supply to a driving power source such as a motor that consumes a large amount of power is cut off, or the output voltage of the power supply is reduced to a voltage lower than the rated voltage (hereinafter referred to as standby voltage). The power consumption of the electronic device and the power consumption of the power supply device can be reduced by reducing the luminance or the like (see, for example, Patent Document 1).

Japanese Patent No. 3281770

  However, for example, in an electronic device that can be operated by a remote control device such as an infrared transmitter (a so-called remote controller; hereinafter sometimes referred to as a remote controller as appropriate) (see, for example, Patent Document 1), an electronic device using a remote controller If the control function is not functioned even in the standby mode, the electronic device cannot be returned from the standby mode to the normal mode by remote control operation. Therefore, a control device (for example, a microcomputer control device having a microprocessor) that controls an electronic device has to be operated even in the standby mode. Therefore, in an electronic device that can be operated by a remote controller, the control device must maintain the operating state even in the standby mode, and the electronic device can be saved in the standby mode by reducing the output voltage of the power supply device. There was a limit to power. In recent years, electronic devices with lower power consumption are being demanded, and electronic devices that are used with the power turned on for a long time, such as the above-described recording devices such as facsimiles and ink jet recording devices, are used. In an electronic device that is used in an operation state in which the operation time in the standby mode, which is waiting in a state where the operation can be started at any time, is overwhelmingly longer than the operation time as It can be said that it is a problem to do.

  The present invention has been made in view of such a situation, and the problem is that, in an electronic device having a configuration that can be controlled by a remote control device such as an infrared transmitter, the power consumption in the standby mode is greatly reduced. There is to make it.

  To achieve the above object, according to a first aspect of the present invention, there is provided a main control circuit for executing main control, a sub-control circuit having receiving means for receiving an operation mode control signal from a remote control device, and the main control. Main control power ON / OFF means capable of turning on / off power supply to the circuit, and the sub control circuit operates when the operation mode control signal received from the remote control device is a standby mode control signal. Having an operation mode control means for shifting the mode from the normal mode to the standby mode with lower power consumption than the normal mode, and controlling the main control power ON / OFF means to be OFF while the operation mode is shifting to the standby mode; This is an electronic device characterized by that.

  Here, the main control circuit is a control device that realizes a main control function in an electronic device, and is, for example, a microcomputer control device having a microprocessor with high speed, high processing capacity, and high power consumption. On the other hand, the sub-control circuit is a control device for realizing only receiving means for receiving an operation mode control signal from a remote control device (remote control) in an electronic device and other additional functions. A microcomputer control apparatus having a low power consumption microprocessor with low processing capacity and low speed. In this way, the main control circuit that performs the main control and the sub-control circuit that has means for receiving the operation mode control signal from the remote control device can be made independent and power supply to the main control circuit can be turned ON / OFF Main control power ON / OFF means is provided. When the standby mode control signal is received from the remote control during the operation in the normal mode, the sub control circuit shifts the operation mode from the normal mode to the standby mode and controls the main control power ON / OFF means to be OFF. Shut off the power supply to the main control circuit. Accordingly, it is possible to receive the operation mode control signal from the remote controller while turning off the power supply to the main control circuit having high power consumption in the standby mode and greatly reducing the power consumption of the electronic device. Therefore, in an electronic device having a configuration that can be controlled by a remote control device such as an infrared transmitter, there is an effect that the power consumption in the standby mode can be greatly reduced.

  According to a second aspect of the present invention, in the first aspect described above, the constant voltage DC power supply device having a voltage control terminal is provided, and the sub control circuit is configured such that the operation mode by the operation mode control means is a normal mode. In the case where the output voltage of the constant voltage DC power supply device is a rated voltage and the operation mode by the operation mode control means is a standby mode, the standby voltage lower than the rated voltage within a range in which the sub control circuit can operate. The electronic device is characterized in that the voltage of the voltage control terminal is controlled so that the output voltage of the constant voltage DC power supply device is lowered.

  In this way, a constant voltage DC power supply device having a voltage control terminal is provided as a power supply device for electronic equipment. In the normal mode, the output voltage of the constant voltage DC power supply device becomes the rated voltage, and in the standby mode, the constant voltage DC power supply device Set the output voltage to the standby voltage. The standby voltage is set to a voltage lower than the rated voltage within a range in which the sub control circuit can operate, thereby reducing power consumption of the electronic device in the standby mode. Note that the standby voltage is preferably set to a lower voltage within a range in which the sub-control circuit can operate, whereby in an electronic device having a configuration that can be controlled by a remote control device such as an infrared transmitter, a standby mode is set. In addition to the effect that the power consumption at the time can be greatly reduced, the effect that the power consumption of the electronic device in the standby mode can be further reduced can be obtained.

  According to a third aspect of the present invention, in the second aspect described above, when the voltage control terminal is short-circuited to 0 V, the output voltage becomes a rated voltage, and when the voltage control terminal is set to high impedance, the output voltage decreases to a standby voltage. ON / OFF control is possible by the constant voltage DC power supply device having the configuration and the sub-control circuit, and the voltage control terminal becomes high impedance in the OFF state, and the voltage control terminal is in the ON state. A voltage control circuit configured to be short-circuited to 0 V, and the sub-control circuit includes means for detecting an operation state of a power switch, and the operation mode by the operation mode control means is a normal mode, and the power switch When it is detected that the camera is operated or when a standby mode control signal is received from the remote control device, The operation mode by work mode control means to shift from the normal mode to the standby mode, the switches the control state of the voltage control circuit from ON to OFF, an electronic device which is characterized by.

  In this way, by setting the voltage control terminal of the constant voltage DC power supply device to a high impedance state (OFF control state) or a state shorted to 0V (ON control state), the output voltage of the constant voltage DC power supply device is set to the rated voltage. Alternatively, a voltage control circuit that can be set to a standby voltage is provided. Also, means for detecting the operation state of the power switch of the electronic device is provided in the sub-control circuit. When the operation mode of the electronic device is the normal mode (the voltage control circuit is in the ON control state), the sub control circuit detects that the power switch of the electronic device has been operated, or the remote control device (remote control device). When the standby mode control signal is received from), the operation mode of the electronic device is shifted to the standby mode, and the control state of the voltage control circuit is switched from the ON control state to the OFF control state so that the voltage control terminal is in the high impedance state. And lowering the output voltage of the constant voltage DC power supply from the rated voltage to the standby voltage. Therefore, in an electronic device having a configuration that can be controlled by a remote control device such as an infrared transmitter, the operation mode of the electronic device is set to the normal mode in addition to the effect that the power consumption in the standby mode can be greatly reduced. In this case, there is an effect that the operation mode can be shifted to the standby mode by either the operation of the power switch or the remote operation by the remote controller.

  According to a fourth aspect of the present invention, in the third aspect, the sub control circuit detects that the operation mode by the operation mode control means is a standby mode and the power switch is operated, or When the normal mode control signal is received from the remote control device, the operation mode by the operation mode control means is shifted from the standby mode to the normal mode, and the control state of the voltage control circuit is switched from OFF to ON. It is a featured electronic device.

  As described above, when the operation mode of the electronic device is the standby mode (the voltage control circuit is in the OFF control state), the sub control circuit detects that the power switch of the electronic device has been operated, or the remote control device. When the normal mode control signal is received from the (remote control), the operation mode of the electronic device is shifted to the normal mode, and the control state of the voltage control circuit is switched from the OFF control state to the ON control state, and the voltage control terminal is set to 0V. The output voltage of the constant voltage DC power supply is increased from the standby voltage to the rated voltage. Therefore, in addition to the operational effects of the invention shown in the third aspect described above, when the operation mode of the electronic device is the standby mode, the operation mode is set to the normal mode by either the operation of the power switch or the remote operation by the remote control. The effect that it becomes possible to shift to is obtained.

According to a fifth aspect of the present invention, in the third aspect or the fourth aspect described above, the main control circuit has means for detecting an operation state of a power switch, and an operation mode by the operation mode control means is set. When it is detected that the power switch is operated in the normal mode, or when a predetermined standby mode transition condition is satisfied, the operation mode by the operation mode control means is shifted from the normal mode to the standby mode, and the voltage The electronic device is characterized in that the control state of the control circuit is switched from ON to OFF.
As described above, when the operation mode of the electronic device is the normal mode, the electronic device is operating in the normal mode by adopting a configuration in which the control state of the voltage control circuit can be switched also from the main control circuit. In this state, the operation mode can be shifted to the standby mode not only when the power switch is operated but also when other predetermined standby mode transition conditions are satisfied.

According to a sixth aspect of the present invention, in the fifth aspect described above, the voltage control circuit is a voltage obtained by a logical sum of an ON control signal output from the main control circuit and an ON control signal output from the sub control circuit. The voltage control terminal is in a high impedance state when the control transistor is ON-controlled and the voltage control transistor is OFF, and the voltage control terminal is short-circuited to 0 V while being ON. It is a featured electronic device.
In this way, the voltage control terminal becomes high impedance in the OFF state, and the voltage control transistor is provided so that the voltage control terminal is short-circuited to 0 V in the ON state, and the ON control output from the main control circuit is provided. By configuring the voltage control circuit so that the voltage control transistor is ON-controlled by the logical sum of the signal and the ON control signal output from the sub control circuit, the constant voltage direct current can be supplied from both the main control circuit and the sub control circuit. It becomes possible to control the output voltage of the power supply device.

  According to a seventh aspect of the present invention, in any one of the third to sixth aspects described above, the power switch has a high impedance when the voltage control terminal is in a non-operating state, and the voltage control terminal is in an operating state. Is arranged so as to be short-circuited to 0V.

  For example, if the sub control circuit is not operating normally due to some abnormality in standby mode, the power supply to the main control circuit is cut off and the main control circuit is not operating. In addition to being able to shift the operation mode to the normal mode, there is a possibility that the operation mode of the electronic device cannot be shifted to the normal mode by operating the power switch. Thus, by allowing the voltage control terminal of the constant voltage DC power supply device to be directly shorted to 0 V by operating the power switch, for example, the sub control circuit operates normally due to some abnormality in the standby mode. Even if not, the operation state of the electronic device can be shifted to the normal mode by raising the output voltage of the constant voltage DC power supply from the standby voltage to the rated voltage by operating the power switch.

  According to an eighth aspect of the present invention, in the seventh aspect described above, a diode is provided between the voltage control terminal and the contact circuit of the power switch so that a current flows only from the voltage control terminal to the power switch. And the cathode side of the diode is pulled up with the power supply voltage of the sub-control circuit, and when the voltage control circuit is ON, the anode side of the diode is short-circuited to 0V, The sub-control circuit is an electronic device that detects a voltage on a cathode side of the diode and detects an operation state of the power switch.

  When the voltage control terminal of the constant voltage DC power supply can be directly shorted to 0 V by operating the power switch, the voltage control terminal is switched to the power switch between the voltage control terminal and the contact circuit of the power switch. A diode is provided so that only current flows. Also, when the cathode side of the diode is pulled up with the power supply voltage of the sub-control circuit and the voltage control terminal of the constant voltage DC power supply is short-circuited to 0V by the voltage control circuit, the anode side of the diode is short-circuited to 0V. Configure as follows. While operating the power switch, the voltage control terminal is shorted to 0V via the diode and the power switch. On the other hand, when the voltage control circuit is ON, the voltage control terminal is short-circuited to 0 V on the anode side of the diode, so that the voltage on the cathode side of the diode is maintained at the pull-up voltage. That is, the anode side of the diode connected to the voltage control terminal is short-circuited to 0 V while the power switch is operated or the voltage control circuit is ON, but the cathode side of the diode is Only when the power switch is operated, it is short-circuited to 0 V, and otherwise it is maintained at the pull-up voltage. Therefore, even when the voltage control terminal of the constant voltage DC power supply device can be directly shorted to 0 V by operating the power switch, the sub control circuit (or main control circuit) detects the voltage on the cathode side of the diode. By doing so, it is possible to accurately detect the operating state of the power switch.

  According to a ninth aspect of the present invention, in any one of the first to eighth aspects described above, a reset signal control circuit that invalidates a signal that resets the sub control circuit while in the standby mode. It is an electronic device characterized by that.

  In standby mode, if a reset signal is input to the sub control circuit for some reason and the sub control circuit is reset, that is, if the sub control circuit is reset while the main control circuit is not operating, While the signal is generated, both the main control circuit and the sub control circuit are not operating. During this time, not only is the electronic control disabled, but the sub control circuit is normal after reset. There is also a possibility that it cannot work. Therefore, in the standby mode, that is, while the main control circuit is not operating, a circuit for invalidating the reset signal to the sub control circuit is provided so that the sub control circuit is not reset even if the reset signal is generated. To. Accordingly, it is possible to prevent both the main control circuit and the sub control circuit from being in an inoperative state during the standby mode.

  According to a tenth aspect of the present invention, in any one of the first to ninth aspects described above, a main scanning drive unit that reciprocates a recording head that ejects ink onto a recording material in a main scanning direction; Sub-scanning driving means for transporting the recording material in the sub-scanning direction by a predetermined transport amount, the main control circuit recording control data input from an external device, and the sub-control circuit from the remote control device It has a recording control means for controlling the recording head, the main scanning driving means, and the sub scanning driving means based on the received control signal to execute recording on a recording material. It is an electronic device.

  According to the electronic apparatus shown in the tenth aspect of the present invention, a scanner or a copy in addition to a recording apparatus such as an ink jet recording apparatus or a facsimile provided with a means for recording on recording paper, or a means for recording on recording paper. In an electronic device such as a digital multi-function peripheral having functions and the like, the operational effects of the invention according to any one of the first to ninth aspects described above can be obtained.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of the ink jet recording apparatus, and FIG. 2 is a perspective view of the ink jet recording apparatus with the main body cover removed. FIG. 3 is a schematic side sectional view of the ink jet recording apparatus. FIG. 4 is a block diagram of a control unit that performs various controls of the ink jet recording apparatus.

  First, a schematic configuration of an ink jet recording apparatus 50 as an “electronic device” according to the present invention will be described with reference to FIGS. The ink jet recording apparatus 50 has a box-like appearance, is formed to be as large as a video tape recorder, and is assumed to be used in a state of being stored in an audio rack, a TV rack, or the like. It has a configuration. A front cover 2 that can be opened and closed in front is provided at the front center of the box-shaped body cover 1. From the opening of the front cover 2 that opens to the front, When the recording paper P as the “recording material” is discharged and recording is performed on the label surface of the optical recording disc D such as a DVD, the optical recording disc as the “recording material” mounted on the disc tray 7 The disc tray 7 temporarily protrudes from the inside of the ink jet recording apparatus 50 during execution of recording on D. Further, the front cover 2 serves as a stacker for stacking recording sheets P discharged after recording is performed with the front cover 2 opened to the front side. A paper feed cassette 8 as a “recording paper storage unit” for stacking the recording papers P is provided below the front cover 2, and recording is performed in the paper feeding cassette 8 while being pulled out to the front side. Paper P can be stacked. An openable / closable cover 3 is provided above the front cover 2, and an ink cartridge unit 15 is provided in the openable / closable cover 3. In the ink cartridge unit 15, a plurality of ink cartridges 16 (see FIG. 3) filled with ink are detachably arranged side by side in the width direction of the ink jet recording apparatus 50, and the open / close cover 3 is opened. The ink cartridge 16 can be replaced. On the left side of the front cover 2, a memory slot cover 4 having a memory slot to which a flash memory card and the like can be attached and detached is disposed. Further, a remote control light receiver 6 that receives a control signal from a remote control 120 as a “remote control device” is disposed below the memory slot cover 4.

  Next, an outline of the internal configuration of the ink jet recording apparatus 50 will be described with reference to FIG. The base of the ink jet recording apparatus 50 includes a lower chassis 13, a main frame 11 extending in the width direction of the main body of the ink jet recording apparatus 50, and a depth direction of the main body of the ink jet recording apparatus 50 disposed on both sides of the main frame 11. The side frame right 12 and the side frame left 14 are parallel to each other. Between the right side frame 12 and the left side frame 14, a carriage guide shaft 51 and a sub carriage guide shaft 511 are pivotally supported at a predetermined interval in the sub scanning direction Y in parallel with the main scanning direction X. . The carriage guide shaft 51 and the sub-carriage guide shaft 511 are guide shafts for supporting the carriage 61 on which the recording head 62 for ejecting ink onto the recording paper P is mounted so as to be able to reciprocate in the main scanning direction X. 51, the rear portion of the carriage 61 is inserted, and the sub-carriage guide shaft 511 supports the front portion of the carriage 61 from below, thereby the recording head 62 (FIG. 3) mounted on the carriage 61 and the recording head 62. The carriage 61 is supported so as to be able to reciprocate in the main scanning direction X in a state where a distance between the head surface and the recording paper P facing the platen gap (platen gap: hereinafter referred to as “PG”) is defined.

Next, the conveyance path of the recording paper P as the “recording material” and the disc tray 7 will be described with reference to FIGS.
An “automatic paper feeder” that automatically feeds recording paper P one by one as a recording material toward a “sub-scanning drive unit” described later includes a paper feed cassette 8 and a paper feed roller 83. A hopper 81 is provided at the bottom of the paper feed cassette 8 on which a plurality of recording papers P are stacked. The hopper 81 is disposed so as to be swingable with a shaft 82 as a swing shaft. By pushing up the recording paper P stacked on the hopper 81 from below, recording is performed on a paper feed roller 83 provided on the top. Press the paper P. The paper feed roller 83 has a substantially D shape when viewed from the side, and the outer periphery is formed of a high friction member (for example, a rubber material). When the recording paper P is fed, the uppermost recording paper P in contact with the arc portion of the paper feeding roller 83 is fed in the sub-scanning direction Y by the rotation of the paper feeding roller 83. The “automatic paper feeder” is disposed below the paper feed roller 83, and the recording paper P whose surface is pressed against the outer peripheral surface of the paper feed roller 83 by the hopper 81 is fed by the drive rotation of the paper feed roller 83. A separation pad (not shown) is provided as a “separation unit” that prevents another recording paper P from being overlapped when fed in the paper direction (sub-scanning direction Y). . By feeding the recording paper P while rotating the paper feeding roller 83 with the recording paper P sandwiched between the separation pad and the paper feeding roller 83, the recording paper P to be fed and the other are about to be fed. The recording paper P is separated. Further, the “automatic paper feeder” pushes back the recording paper P partially protruding out of the paper feeding cassette 8 on which the recording paper P separated by the separation pad is stacked, into the paper feeding cassette 8. In addition, the recording paper P partially protruding outside the paper feed cassette 8 is disposed under the paper feed roller 83 so as to be able to advance into the paper feed path so as to be pushed toward the paper feed cassette 8. A paper return lever (not shown) is provided.

  On the downstream side of the paper feed roller 83 in the sub-scanning direction Y, a conveyance drive roller 53 having a high frictional resistance film uniformly applied to the outer peripheral surface, and can be driven to rotate while being pressed and urged by the conveyance drive roller 53. A conveyance driven roller 54 that is pivotally supported by the PF motor 57 as a “conveyance drive motor” that drives the conveyance drive roller 53 and a “rotation” that detects the rotation amount of the conveyance drive roller 53. The rotary encoder 31 as “amount detection means” constitutes “sub-scanning drive means” for transporting the recording paper P or the disc tray 7 in the sub-scanning direction Y by a predetermined transport amount. The “sub-scanning driving means” sandwiches the recording paper P or the disk tray 7 between the transport driving roller 53 and the transport driven roller 54, and the rotational driving force of the PF motor 57 is transmitted to the pulley 59 via the endless belt 58. The recording paper P or the disk tray 7 is transported in the sub-scanning direction Y by the rotation of the transport driving roller 53 that is driven and rotated by the rotation of the pulley 59 transmitted through an intermediate gear (not shown). Then, the rotation amount of the PF motor 57 is described later according to the rotation amount of the conveyance drive roller 53 detected by the rotary encoder 31 so that the recording paper P or the disc tray 7 is conveyed by a predetermined conveyance amount. 100.

  A platen 52 is disposed on the downstream side of the transport driving roller 53 in the sub-scanning direction Y so as to face the head surface of the recording head 62 in the vertical direction. The recording paper P or the disc tray 7 conveyed by the above-mentioned “sub-scanning driving means” is supported by the platen 52 from below, and the recording head 62 reciprocates in the main scanning direction X by the “main scanning driving means”. Recording is performed by ejecting ink from the ink. The “main scanning driving means” includes a carriage 61 and a CR motor 63 as a “carriage driving motor” serving as a driving force source for reciprocating the carriage 61. The rotational driving force of the CR motor 63 is shown in FIG. A rotational motion is converted into a linear reciprocating motion and transmitted to the carriage 61 via a driving force transmission mechanism such as an endless belt (not shown). In this embodiment, the recording head 62 is provided at the bottom of the carriage 61, but no ink cartridge is mounted on the carriage 61 that reciprocates in the main scanning direction X, and the ink cartridge unit 15 described above. Ink is supplied to the carriage 61 through the flexible collecting tube 17 from the plurality of ink cartridges 16 stored therein. In the flexible collecting tube 17, independent ink supply paths are formed inside as many as the number of ink cartridges 16. The ink in each ink cartridge 16 is pressurized by a pump or the like (not shown) and supplied individually to the recording head 62 via the flexible collecting tube 17.

  On the downstream side of the recording head 62 in the sub-scanning direction Y, the rotational driving force of the PF motor 57 is transmitted and rotated to be driven, and the paper driving roller 55 can be driven and rotated while being urged by the paper discharging drive roller 55. A paper discharge driven roller 56 supported on the shaft is disposed. The recording paper P during and after recording is sandwiched between the paper discharge driving roller 55 and the paper discharge driven roller 56, and the rotational driving force of the PF motor 57 is transmitted to the pulley 59 via the endless belt 58. The rotation of 59 is transmitted through an intermediate gear (not shown) and the like, and is discharged from the opening in a state where the front panel 2 is opened in the sub-scanning direction Y by the rotation of the discharge driving roller 55 that rotates. A disc tray 7 on which the optical recording disc D can be mounted is disposed above the paper feed cassette 8. The disc tray 7 has a rack 71 (see FIG. 2) formed on the side end thereof, and is arranged so as to be able to move straightly in a substantially horizontal posture by rotation of a pinion gear (not shown) that meshes with the rack 71. ing. Then, after the disk tray 7 is conveyed until the leading end is nipped by the conveyance drive roller 53 and the conveyance driven roller 54 by the rotation of the pinion gear, the conveyance drive roller 53 is rotated in both directions thereafter. It is sent in the sub-scanning direction Y or the reverse feed direction YR. Further, when the optical recording disk D is attached to or detached from the disk tray 7, the optical recording disk D is transported in the sub-scanning direction Y to a position protruding from the opening where the front panel 2 is opened (a position indicated by an imaginary line in FIG. 2).

Next, the configuration of the recording control unit 100 will be described with reference to FIG.
The recording control unit 100 is connected to a host computer 200 that transmits recording control data to the ink jet recording apparatus 50 so that data can be transmitted and received. The recording control unit 100 includes a ROM 101, a RAM 102, an interface unit 103, an MPU 104, a DC unit 105, a PF motor driver 106, a CR motor driver 107, a head driver 108, and a nonvolatile memory 109. The MPU 104 and the DC unit 105 include a rotary encoder 31 as a “rotation amount detection unit” that detects the rotation amount of the transport driving roller 53, and a linear encoder 32 as a “carriage movement amount detection unit” that detects the movement amount of the carriage 61. The paper detector 33 for detecting the start and end of the recording paper P being conveyed, the PW sensor 34 for detecting the width in the main scanning direction X of the recording paper P mounted on the carriage 61, and the power source of the ink jet recording apparatus 50 are turned on. Output signals of a power switch 35 for turning on / off and a tray switch 36 for performing the loading / unloading operation of the disk tray 7 are input. In this embodiment, the PW sensor 34 is an optical sensor provided at the bottom of the carriage 61. The PW sensor 34 detects the width of the recording paper P in the sub-scanning direction Y by the main scanning of the carriage 61, and the disc tray 7 This is used to detect the feed position of the disc tray 7 by recognizing an identification mark (not shown) attached to. Further, it is also used for detecting the presence or absence of the optical recording disk D on the disk tray 7 and the center position of the optical recording disk D.

  The MPU 104 performs arithmetic processing for executing the control program of the ink jet recording apparatus 50 and other necessary arithmetic processing. The ROM 101 stores a control program (firmware) necessary for controlling the ink jet recording apparatus 50, data necessary for processing, and the like. The interface unit 103 has a communication interface function with the host computer 200 and receives recording control data from the host computer 200. The RAM 102 is used as a primary storage area for various data including recording control data transferred from the host computer 200 via the work area of the MPU 104 and the interface unit 103. The nonvolatile memory 109 stores various types of information that need to be retained even after the inkjet recording apparatus 50 is turned off. The DC unit 105 is a control circuit for performing speed control of the PF motor 57 and the CR motor 63 that are DC motors. The DC unit 105 determines the speeds of the PF motor 57 and the CR motor 63 based on the control command sent from the MPU 104, the output signal of the rotary encoder 31, the output signal of the linear encoder 32, and the output signal of the paper detector 33. Various calculations for control are performed, and motor control signals based on the calculation results are sent to the PF motor driver 106 and the CR motor driver 107. The PF motor driver 106 drives and controls the PF motor 57 based on the motor control signal from the DC unit 105. In this embodiment, the PF motor 57 meshes with a paper feed roller 83, a conveyance drive roller 53, a paper discharge drive roller 55, and a rack 71 (see FIG. 2) formed on the side end of the disc tray 7. It becomes a rotational driving force source of a pinion gear (not shown) that conveys the tray 7. The CR motor driver 107 drives or controls the CR motor 63 based on a motor control signal from the DC unit 105 to reciprocate the carriage 61 in the main scanning direction, or stop and hold it. The head driver 108 drives and controls the recording head 62 based on a head control signal from the MPU 104.

  Next, a power supply system of the ink jet recording apparatus 50 as an “electronic device” according to the present invention and power control in the normal mode and the standby mode will be described with reference to FIG.

FIG. 5 is a power supply system diagram of the ink jet recording apparatus 50.
The ink jet recording apparatus 50 includes a constant voltage DC power supply device 110. The constant voltage DC power supply device 110 has a voltage control terminal PSC, and the voltage control terminal PSC is controlled by the voltage control circuit 21 or the power switch 35. The output voltage of the constant voltage DC power supply device 110 is maintained at 42V as the “rated voltage” while the voltage control terminal PSC is short-circuited to 0V, and while the voltage control terminal PSC is maintained at high impedance. The "standby voltage" is maintained at about 13V.
The output of the constant voltage DC power supply device 110 includes the above-described PF motor 57, CR motor 63, recording head 62, and constant voltage DC power supply device 110 as a “load device” supplied with power from the constant voltage DC power supply device 110. Is converted into a control circuit voltage of 5 V and output as a “main control circuit” that performs the main control of the ink jet recording apparatus 50 via the DC-DC converter 22 and the DC-DC converter 22. A control unit 100 and a sub control unit 150 as a “sub control circuit” are connected. The PF motor 57, the CR motor 63, and the recording head 62 are directly supplied with power from the output of the constant voltage DC power supply device 110, operate at 42 V as the “rated voltage”, and the output voltage of the constant voltage DC power supply device 110 is It does not operate when it is lowered to about 13V as the “standby voltage”.
The DC-DC converter 22 operates at 42 V as the “rated voltage”, and even if the output voltage of the constant voltage DC power supply 110 drops to about 13 V as the “standby voltage”, the output voltage is reduced to the control circuit voltage 5 V. It has a configuration that can be maintained. The control circuit voltage 5 V output from the DC-DC converter 22 is supplied to the recording control unit 100 and the sub-control unit 150. In this way, by providing the DC-DC converter 22, even if the output voltage of the constant voltage DC power supply device 110 decreases to the standby voltage, the power supply (control circuit voltage 5 V) of the recording control unit 100 and the sub control unit 150 is maintained. A stable supply becomes possible. Even when the voltage of the constant voltage DC power supply device 110 is lowered in the standby mode, the control circuit voltage 5 V is stably supplied to the recording control unit 100 and the sub control unit 150 within a range in which the DC-DC converter 22 can operate normally. can do.
The power supply path (42 V line) from the constant voltage DC power supply 110 to the PF motor 57, CR motor 63, and recording head 62 is connected to the PF motor 57, CR motor 63, and recording head 62 from the constant voltage DC power supply 110. A switch SW1 that can cut off the power supply to is provided. The power supply path (5 V line) from the DC-DC converter 22 to the recording control unit 100 is a “main control power ON / OFF unit” that can cut off the power supply from the DC-DC converter 22 to the recording control unit 100. Switch SW2 is provided. The switch SW1 is ON / OFF controlled by the recording control unit 100 or an operation mode control circuit 151 described later, and the switch SW2 is ON / OFF controlled only by an operation mode control circuit 151 described later.

The sub-control unit 150 has an operation mode control circuit 151 as “operation mode control means” for controlling the operation mode of the ink jet recording apparatus 50. Here, an operation mode of the ink jet recording apparatus 50 will be described. The normal mode is a mode that is selected when recording on the label surface of the optical recording disk D mounted on the recording paper P or the disk tray 7 in a state where the power of the ink jet recording apparatus 50 is ON, The normal mode is maintained during recording, immediately after recording, or while the ink jet recording apparatus 50 is being operated by the user.
On the other hand, the standby mode is an operation mode that is selected to reduce power consumption of the ink jet recording apparatus 50 to save power, but the ink jet recording apparatus 50 in the embodiment has two types of standby modes. I have. One is that the power of the ink jet recording apparatus 50 is ON, for example, recording on the label surface of the optical recording disk D mounted on the recording paper P or the disk tray 7 is not performed, and by the user When a certain time (for example, 3 minutes) elapses without any operation, the drive system (PF motor 57, CR motor 63, and recording head 62) is stopped while recording is not performed while the power is on. This is a standby mode that is selected in order to cut off the power supply and save power in the ink jet recording apparatus 50 (hereinafter referred to as a power saving mode). The other standby mode is a standby mode that is selected in order to cut power supply to the control system (recording control unit 100) in addition to the drive system to further save power of the ink jet recording apparatus 50 ( Hereinafter, the sleep mode is used.
The output voltage of the constant voltage DC power supply device 110 is maintained at 42 V as the “rated voltage” while the operation mode of the ink jet recording apparatus 50 is the normal mode, and the operation mode of the ink jet recording apparatus 50 is the standby mode. For some time, it is maintained at about 13V as a “standby voltage”. Therefore, when the operation mode shifts to the standby mode, the ink jet recording apparatus 50 apparently turns off the power, but internally, the constant voltage DC power supply 110 operates with the output voltage lowered to the standby voltage. It will be in the state.
In the ink jet recording apparatus 50 shown in the embodiment, recording on the label surface of the recording sheet P or the optical recording disk D mounted on the disk tray 7 is not performed, and no operation by the user is performed. When a certain time (for example, 3 minutes) elapses, the operation mode is set as a condition for shifting from the normal mode to the power saving mode. The operation mode control circuit 151 shifts the operation mode of the ink jet recording apparatus 50 to the power saving mode when this condition is satisfied. Then, the operation mode control circuit 151 operates the ink jet recording apparatus 50 by the user (for example, the power switch 35 or the power switch 35) to perform recording on the label surface of the optical recording disk D mounted on the recording paper P or the disk tray 7. When the operation of depressing the tray switch 36 is performed, the operation mode is shifted from the power saving mode to the normal mode.

Further, the sub-control unit 150 has a remote control receiving circuit 152 as “receiving means” for receiving a control signal from the remote control 120 via the remote control light receiver 6, and the remote control receiving circuit 152 operates from the remote control 120 in the operation mode. Is received, an operation mode control signal (hereinafter referred to as a standby mode control signal) for shifting from the normal mode to the standby mode is a condition for shifting the operation mode from the normal mode to the sleep mode. When the operation mode control circuit 151 receives a standby mode control signal from the remote controller 120, the operation mode control circuit 151 shifts the operation mode from the normal mode to the sleep mode, and shifts the operation mode from the remote control 120 to the normal mode. When the normal mode control signal is received, the operation mode is shifted from the standby mode to the sleep mode.
Further, the ink jet recording apparatus 50 shown in the embodiment shifts to the sleep mode when the power switch 35 is operated while operating in the normal mode, and operates when the power switch 35 is operated while operating in the sleep mode. Is to shift to the normal mode. That is, the ink jet recording apparatus 50 shown in the embodiment operates in a standby state (sleep mode) internally even when the power is turned off, as in a general electronic device such as a video tape recorder. When a predetermined normal mode transition condition is satisfied, such as when a control signal is received from the remote controller 120, the state can be shifted to the normal mode at any time.

When the condition for shifting the operation mode of the ink jet recording apparatus 50 from the normal mode to the power saving mode is satisfied, the operation mode control circuit 151 sets the output voltage of the constant voltage switching DC power supply circuit 110 by the voltage control circuit 21 to a rated voltage of 42V. The voltage control circuit 21 is controlled so that the standby voltage is lowered to about 13 V (details will be described later). At the same time, the recording control unit 100 controls the switch SW <b> 1 to be turned off to cut off the power supply from the constant voltage switching DC power supply circuit 110 to the PF motor 57, the CR motor 63 and the recording head 62.
Further, the operation mode control circuit 151 sets the output voltage of the constant voltage switching DC power supply circuit 110 by the voltage control circuit 21 to a rating of 42 V when the condition for shifting the operation mode of the ink jet recording apparatus 50 from the normal mode to the sleep mode is satisfied. In order to reduce the voltage from the voltage to the standby voltage of about 13 V, the voltage control circuit 21 is controlled, the switch SW1 is turned off, and the constant voltage switching DC power supply circuit 110 is connected to the PF motor 57, the CR motor 63, and the recording head 62. The power supply is cut off, and the switch SW2 is controlled to be turned off to cut off the power supply from the DC-DC converter 22 to the recording control unit 100. By reducing the output voltage of the constant voltage switching DC power supply circuit 110 from 42V to about 13V, the power consumption of the constant voltage switching DC power supply circuit 110 is reduced.
Further, the power consumption of the PF motor 57, the CR motor 63, and the recording head 62 is reduced to 0 by cutting off the power supply from the constant voltage switching DC power supply circuit 110 to the PF motor 57, the CR motor 63, and the recording head 62. Become. Further, by cutting off the power supply from the DC-DC converter 22 to the recording control unit 100, the power consumption of the recording control unit 100 as the “main control circuit” becomes zero. That is, the ink jet recording apparatus 50 operating in the standby mode (sleep mode) is in a state where only the sub-control unit 150 is operating in a state where the power consumption of the constant voltage switching DC power supply circuit 110 is reduced. Compared with the case of operating in the normal mode, power consumption can be greatly reduced.
Since the sub control unit 150 is operating while operating in the standby mode (sleep mode), the remote control receiving circuit 152 can receive a control signal from the remote control 120. . When the remote control receiving circuit 152 receives the normal mode control signal from the remote control 120, the operation mode control circuit 151 changes the constant voltage switching DC power supply circuit 110 by the voltage control circuit 21 from the standby voltage of about 13V to the rated voltage of 42V. In order to increase the voltage, the voltage control circuit 21 is controlled (details will be described later).
At the same time, the switch SW1 is turned on to supply power from the constant voltage switching DC power supply circuit 110 to the PF motor 57, the CR motor 63, and the recording head 62, and the switch SW2 is turned on to turn on the DC-DC converter 22. Power to the recording control unit 100. The PF motor 57, the CR motor 63, and the recording head 62 can be operated at a rated voltage of 42V, and the recording control by the recording control unit 100 can be executed at any time.

As described above, the recording control unit 100 that performs the main control of the ink jet recording apparatus 50 and the sub-control unit 150 that includes a unit that receives an operation mode control signal from the remote controller 120 are made independent independently to the recording control unit 100. A switch SW2 that can turn on / off the power supply is provided. When the standby mode control signal is received from the remote controller 120 during operation in the normal mode, the operation mode control circuit 151 of the sub control circuit 150 shifts the operation mode from the normal mode to the standby mode (sleep mode). The switch SW2 is turned off to cut off the power supply to the recording control unit 100.
Accordingly, it is possible to receive the operation mode control signal from the remote controller 120 while turning off the power supply to the recording control unit 100 having high power consumption in the standby mode and greatly reducing the power consumption of the ink jet recording apparatus 50. It becomes possible. Therefore, in the ink jet recording apparatus 50 having a configuration that can be controlled by the remote controller 120, power consumption in the standby mode can be significantly reduced. In the standby mode, the power consumption of the ink jet recording apparatus 50 in the standby mode is further reduced by reducing the output voltage of the constant voltage DC power supply device 110 from the rated voltage (42 V) to the standby voltage (about 13 V). be able to.

Next, the voltage control circuit 21 will be further described with reference to FIG.
The voltage control circuit 21 has a configuration capable of ON / OFF control by a voltage control signal MCNT output from the recording control unit 100 or a voltage control signal SCNT output from the sub-control unit 150. Specifically, the voltage control circuit 21 is ON / OFF controlled by a digital logic circuit IC1 that outputs a control signal obtained by logically summing the voltage control signal MCNT and the voltage control signal SCNT, and an output signal of the digital logic circuit IC1. And a voltage control transistor Q1.
While either or both of the voltage control signal MCNT and the voltage control signal SCNT are at a high level (5 V), the base current of the voltage control transistor Q1 flows and the voltage control transistor Q1 is turned on. The voltage control terminal PSC of the constant voltage DC power supply device 110 connected to the collector of the voltage control transistor Q1 is short-circuited to 0V, and the output voltage of the constant voltage DC power supply device 110 is maintained at the rated voltage (42V). While both the voltage control signal MCNT and the voltage control signal SCNT are at the low level (0 V), the base current of the voltage control transistor Q1 does not flow, so the voltage control transistor Q1 is turned off, and the voltage control transistor The voltage control terminal PSC of the constant voltage DC power supply 110 connected to the collector of Q1 becomes high impedance, and the output voltage of the constant voltage DC power supply 110 is maintained at the standby voltage (about 13V). Accordingly, the output voltage of the constant voltage DC power supply device 110 can be controlled from either the recording control unit 100 or the sub control unit 150.

The power switch 35 has a contact circuit in which a contact is formed only while the user is operating (pressing) by hand. The contact circuit is configured in the operating state, the voltage control terminal PSC is short-circuited to 0 V, and is not operated. In this state, the contact circuit is opened and the voltage control terminal PSC becomes high impedance. A diode D1 is provided between the voltage control terminal PSC and the power switch 35 so that current flows only from the voltage control terminal PSC to the power switch 35, and the cathode side of the diode D1 is connected to the control circuit by a pull-up resistor R2. Pulled up at a voltage of 5V.
In the voltage control circuit 21, the collector of the voltage control transistor Q1 is connected to the anode side of the diode D1, and the voltage control circuit 21 is ON, that is, the voltage control transistor Q1 is ON. The anode side of the diode D1 is short-circuited to 0V. While the power switch 35 is being operated, the voltage control terminal PSC is short-circuited to 0 V via the contact circuit of the diode D1 and the power switch 35.
On the other hand, when the voltage control transistor Q1 is ON while the power switch 35 is not operated, the voltage control terminal PSC is shorted to 0V on the anode side of the diode D1, and the voltage on the cathode side of the diode D1 is pulled. The up voltage (5V) is maintained. That is, the anode side of the diode D1 is both short-circuited to 0 V while the power switch 35C is operated or the voltage control circuit 21 is ON.
On the other hand, the cathode side of the diode D1 is short-circuited to 0V only while the power switch 35 is operated, and is maintained at 5V during the other times. Therefore, the operating state of the power switch 35 can be detected by detecting the voltage on the cathode side of the diode D1. The recording control unit 100 detects the operating state of the power switch 35 by inputting the voltage on the cathode side of the diode D1 from the input terminal MIP via the diode D2, and the sub-control unit 150 similarly detects the operating side of the diode D1. Is input from the input terminal SIP, and the operating state of the power switch 35 is detected. The input terminal MIP (the anode side of the diode D2) is pulled up by the control circuit voltage 5V by the pull-up resistor R1.
Note that 5V is directly applied to the pull-up resistor R1 and the pull-up resistor R2 from the output of the DC-DC converter 22, and the power supply voltage 5V of the digital logic circuit IC1 and the digital logic circuit IC2 (described later) is also DC. A circuit configuration in which 5V is directly supplied from the output of the DC converter 22 and power is supplied even when the switch SW2 is in the OFF state.

  When the sub-control unit 150 detects that the operation mode by the operation mode control circuit 151 is the normal mode and the power switch 35 is operated, or receives a standby mode control signal from the remote controller 120, the sub-control unit 150 controls the operation mode. The operation mode by the circuit 151 is shifted from the normal mode to the sleep mode, and the control state of the voltage control circuit 21 is switched from ON to OFF. On the other hand, when it is detected that the operation mode by the operation mode control circuit 151 is the sleep mode and the power switch 35 is operated, or when the normal mode control signal is received from the remote controller 120, the operation by the operation mode control circuit 150 is performed. The mode is shifted from the sleep mode to the normal mode, and the control state of the voltage control circuit 21 is switched from OFF to ON. That is, the ink jet recording apparatus 50 switches the operation mode from the normal mode to the sleep mode or from the sleep mode to the normal mode by the operation of the power switch 35 or the remote operation by the remote controller 120 by the sub control unit 150. Can be done.

Further, when the operation mode by the operation mode control circuit 151 detects that the power switch 35 is operated in the normal mode during the operation in the normal mode, or a predetermined standby mode other than the standby mode transition condition by the operation mode control circuit 151 When the transition condition is satisfied, the recording control unit may switch the operation mode of the operation mode control circuit 151 from the normal mode to the standby mode (power saving mode) and switch the control state of the voltage control circuit 21 from ON to OFF. The configuration is executable even from 100.
Further, since the voltage control terminal PSC of the constant voltage DC power supply device 110 can be directly short-circuited to 0 V by operating the power switch 35, for example, the sub-control unit 150 is in a certain state in the standby mode (sleep mode). Even when the power supply switch 35 is not operating normally due to an abnormality, the output voltage of the constant voltage DC power supply device 110 can be increased from the standby voltage to the rated voltage by operating the power switch 35. In this case, if the circuit configuration is such that the switch SW1 and the switch SW2 are turned on when the output voltage of the constant voltage output power supply device 110 reaches the rated voltage regardless of the control state of the operation mode control circuit 151, the Even when the controller 150 is not operating normally, the operation state of the ink jet recording apparatus 50 can be forcibly shifted to the normal mode by operating the power switch 35.
Further, the ink jet recording apparatus 50 includes a digital logic circuit IC2 as a “reset signal control circuit” for invalidating a signal for resetting the sub control unit 150 while in the sleep mode. The digital logic circuit IC2 outputs a control signal obtained by logically summing the reset signal RST and the reset invalid signal DSL output from the sub control unit 150 as the reset signal SRST of the sub control unit 150. The sub-control unit 150 is reset when the reset signal SRST becomes a low level (0 V). The sub control unit 150 maintains the reset invalid signal DSL at the high level (5 V) in the sleep mode, that is, while the recording control unit 100 is not operating.
Therefore, the reset signal SRST of the sub-control 150 output from the digital logic circuit IC2 is maintained at the high level even when the reset factor occurs and the reset signal RST becomes the low level (0V), so that the sub-control unit 150 is reset. Not. Accordingly, it is possible to prevent both the recording control unit 100 and the sub-control unit 150 from operating during the sleep mode.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

1 is a perspective view of an ink jet recording apparatus. FIG. 3 is a perspective view of the ink jet recording apparatus with a main body cover removed. 1 is a schematic side sectional view of an ink jet recording apparatus. It is a block diagram of a recording control unit of the ink jet recording apparatus. It is a power supply system diagram of an ink jet recording apparatus.

Explanation of symbols

4 Memory slot cover, 6 Remote receiver, 7 Disc tray, 8 Paper cassette, 16 Ink cartridge, 17 Ink tube, 21 Voltage control circuit, 22 DC-DC converter, 35 Power switch, 50 Inkjet recording device, 51 Carriage Guide shaft, 52 Platen, 53 Conveyance drive roller, 54 Conveyance driven roller, 55 Discharge drive roller, 56 Discharge driven roller, 57 PF motor, 61 Carriage, 62 Recording head, 63 CR motor, 83 Feed roller, 100 Recording Control unit, 101 ROM, 102 RAM, 103 interface unit, 104 MPU, 105 DC unit, 106 PF motor driver, 107 CR motor driver, 108 head driver, 109 nonvolatile memory, 110 constant voltage direct Current source device, 120 remote control, 150 sub-control unit, 151 operation mode control circuit, 152 remote control receiving circuit, SW1, SW2 switch, P recording paper, Q1 voltage control transistor, X main scanning direction, Y sub-scanning direction

Claims (15)

A main control circuit for performing the main control;
A sub-control circuit having receiving means for receiving an operation mode control signal from the remote control device;
Main control power ON / OFF means capable of turning ON / OFF the power supply to the main control circuit;
When the voltage control terminal is short-circuited to 0 V, the output voltage becomes the rated voltage, and when the voltage control terminal is set to high impedance, the output voltage decreases to a standby voltage lower than the rated voltage within a range in which the sub-control circuit can operate. A constant voltage DC power supply,
A voltage control circuit that is capable of ON / OFF control by the sub-control circuit, and that has a configuration in which the voltage control terminal is in a high impedance state in the OFF state, and the voltage control terminal is short-circuited to 0V in the ON state. And comprising
The sub control circuit includes an operation mode control means for shifting the operation mode from the normal mode to the standby mode with lower power consumption than the normal mode when the operation mode control signal received from the remote control device is a standby mode control signal. And means for detecting an operation state of the power switch,
While the operation mode shifts to the standby mode, the main control power ON / OFF means is controlled to be OFF,
When the operation mode by the operation mode control means is a normal mode, the output voltage of the constant voltage DC power supply device is a rated voltage, and when the operation mode by the operation mode control means is a standby mode, the standby voltage ON / OFF control of the voltage control circuit so that the output voltage of the constant voltage DC power supply device decreases until
When the operation mode by the operation mode control means is a normal mode and it is detected that the power switch is operated, or when a standby mode control signal is received from the remote control device, the operation by the operation mode control means An electronic apparatus, wherein a mode is shifted from a normal mode to a standby mode, and the control state of the voltage control circuit is switched from ON to OFF.   2. The sub-control circuit according to claim 1, wherein when the operation mode by the operation mode control means is in a standby mode and it is detected that the power switch is operated, or a normal mode control signal is received from the remote control device In this case, the electronic device is characterized in that the operation mode by the operation mode control means is shifted from the standby mode to the normal mode, and the control state of the voltage control circuit is switched from OFF to ON.   3. The main control circuit according to claim 1, wherein the main control circuit has means for detecting an operation state of a power switch, and detects that the power switch is operated in an operation mode by the operation mode control means in a normal mode. Or when a predetermined standby mode transition condition is satisfied, the operation mode by the operation mode control means is shifted from the normal mode to the standby mode, and the control state of the voltage control circuit is switched from ON to OFF. Electronic equipment.   4. The voltage control transistor according to claim 3, wherein the voltage control transistor is ON-controlled by a logical sum of an ON control signal output from the main control circuit and an ON control signal output from the sub control circuit. An electronic apparatus having a configuration in which the voltage control terminal is in a high impedance state in a state where the voltage control terminal is turned off, and the voltage control terminal is short-circuited to 0 V in a state in which the voltage control terminal is turned on.   5. The power switch according to claim 1, wherein the power switch is disposed so that the voltage control terminal is in a high impedance state in a non-operating state, and the voltage control terminal is short-circuited to 0 V in an operating state. Electronic equipment characterized by that.   6. The diode according to claim 5, wherein a diode is provided between the voltage control terminal and a contact circuit of the power switch so that a current flows only from the voltage control terminal to the power switch, and a cathode side of the diode is connected to the sub-control. In a state in which the circuit is pulled up with the power supply voltage of the circuit and the voltage control circuit is ON, the anode side of the diode is short-circuited to 0 V, and the sub-control circuit is connected to the cathode side of the diode. An electronic apparatus characterized by detecting an operation state of the power switch by detecting a voltage.   7. The electronic apparatus according to claim 1, further comprising a reset signal control circuit that invalidates a signal for resetting the sub control circuit while in the standby mode. A main control circuit for performing the main control;
A sub-control circuit having receiving means for receiving an operation mode control signal from the remote control device;
Main control power ON / OFF means capable of turning ON / OFF the power supply to the main control circuit;
A main scanning drive unit that reciprocates a recording head that ejects ink to the recording material in the main scanning direction; and a sub-scanning driving unit that conveys the recording material in the sub-scanning direction by a predetermined conveyance amount;
The main control circuit controls the recording head, the main scanning driving means, and the sub scanning driving means based on recording control data input from an external device and a control signal received by the sub control circuit from the remote control device. Having recording control means for controlling and executing recording on the recording material;
The sub-control circuit includes an operation mode control unit that shifts the operation mode from the normal mode to the standby mode that consumes less power than the normal mode when the operation mode control signal received from the remote control device is a standby mode control signal. And an electronic device characterized in that the main control power ON / OFF means is OFF-controlled while the operation mode is shifted to the standby mode. 9. The output voltage becomes a rated voltage when the voltage control terminal is short-circuited to 0V, and the output voltage reaches a standby voltage lower than the rated voltage within a range in which the sub-control circuit can operate when the voltage control terminal is set to high impedance. A constant-voltage DC power supply device having a configuration that decreases;
A voltage control circuit that is capable of ON / OFF control by the sub-control circuit, and that has a configuration in which the voltage control terminal is in a high impedance state in the OFF state and the voltage control terminal is short-circuited to 0V in the ON state. And comprising
The sub-control circuit has means for detecting an operation state of a power switch,
When the operation mode by the operation mode control means is a normal mode, the output voltage of the constant voltage DC power supply device is a rated voltage, and when the operation mode by the operation mode control means is a standby mode, the standby voltage ON / OFF control of the voltage control circuit so that the output voltage of the constant voltage DC power supply device decreases until
When the operation mode by the operation mode control means is a normal mode and it is detected that the power switch is operated, or when a standby mode control signal is received from the remote control device, the operation by the operation mode control means An electronic apparatus, wherein a mode is shifted from a normal mode to a standby mode, and the control state of the voltage control circuit is switched from ON to OFF. 10. The sub control circuit according to claim 9, wherein when the operation mode by the operation mode control means is a standby mode and it is detected that the power switch is operated, or a normal mode control signal is received from the remote control device In this case, the electronic device is characterized in that the operation mode by the operation mode control means is shifted from the standby mode to the normal mode, and the control state of the voltage control circuit is switched from OFF to ON. 11. The main control circuit according to claim 9, wherein the main control circuit has means for detecting an operation state of a power switch, and detects that the power switch is operated in an operation mode by the operation mode control means in a normal mode. Or when a predetermined standby mode transition condition is satisfied, the operation mode by the operation mode control means is shifted from the normal mode to the standby mode, and the control state of the voltage control circuit is switched from ON to OFF. Electronic equipment. 12. The voltage control circuit according to claim 11, wherein the voltage control transistor is ON-controlled by a logical sum of an ON control signal output from the main control circuit and an ON control signal output from the sub control circuit. An electronic apparatus having a configuration in which the voltage control terminal is in a high impedance state in a state where the voltage control terminal is turned off, and the voltage control terminal is short-circuited to 0 V in a state in which the voltage control terminal is turned on. The power switch according to any one of claims 9 to 12, wherein the voltage control terminal is placed in a high impedance state in a non-operating state, and the voltage control terminal is short-circuited to 0V in an operating state. Electronic equipment characterized by that. 14. The diode according to claim 13, wherein a diode is provided between the voltage control terminal and a contact circuit of the power switch so that a current flows only from the voltage control terminal to the power switch, and the cathode side of the diode is connected to the sub-control. In a state in which the circuit is pulled up with the power supply voltage of the circuit and the voltage control circuit is ON, the anode side of the diode is short-circuited to 0 V, and the sub-control circuit is connected to the cathode side of the diode. An electronic apparatus characterized by detecting an operation state of the power switch by detecting a voltage. 15. The electronic apparatus according to claim 9, further comprising a reset signal control circuit that invalidates a signal for resetting the sub control circuit while in the standby mode.

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