CN101527765B - Image forming apparatus and control method thereof - Google Patents

Image forming apparatus and control method thereof Download PDF

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Publication number
CN101527765B
CN101527765B CN2009100034045A CN200910003404A CN101527765B CN 101527765 B CN101527765 B CN 101527765B CN 2009100034045 A CN2009100034045 A CN 2009100034045A CN 200910003404 A CN200910003404 A CN 200910003404A CN 101527765 B CN101527765 B CN 101527765B
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China
Prior art keywords
unit
power
phase
imaging device
resistance
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Expired - Fee Related
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CN2009100034045A
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Chinese (zh)
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CN101527765A (en
Inventor
金振河
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Hewlett Packard Development Co LP
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Samsung Electronics Co Ltd
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/50Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5004Power supply control, e.g. power-saving mode, automatic power turn-off
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/065Arrangements for controlling the potential of the developing electrode
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/20Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2039Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature
    • G03G15/205Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature specially for the mode of operation, e.g. standby, warming-up, error
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/80Details relating to power supplies, circuits boards, electrical connections
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/14Electronic sequencing control

Abstract

An image forming apparatus having a normal mode and a standby mode includes an image forming unit to form an image, a switching unit which selectively allows power to be supplied to the image forming unit, a controller to control the switching unit based on a phase signal of the power, a power cut-off unit which cuts off the power to the image forming unit in the standby mode, and a phase detector which is connected to both ends of the power cut-off unit, detects a phase of the power via different phase detection routes according to whether being in the normal mode or in the standby mode, and outputs the phase signal of the power so that a power consumption of the image forming apparatus does not exceed a predetermined value in the standby mode.

Description

Imaging device and control method thereof
Technical field
General plotting of the present invention relates to imaging device and control method thereof, more particularly, relates to a kind of imaging device and control method thereof, wherein, detects the phase place that exchanges (AC) power supply and controls to carry out photographic fixing.
Background technology
A kind of imaging device such as printer, multi-function peripheral etc. is based on such as imaging on such as the recording medium of paper etc. such as the view data of document, photo etc.In the situation such as the electrofax class imaging device of laser printer, the ink powder that develops at photoconductor drum is transferred and is fixed on the recording medium, thus imaging.In this case, imaging device comprises that high temperature is with the fixation unit of fixing toner.
Fig. 1 has shown the schematic diagram of the configuration of traditional imaging device 1.Imaging device 1 comprises the image-generating unit 11 for imaging, and image-generating unit 11 comprises the fixation unit 11a that is provided with the heater (not shown) for photographic fixing.Imaging device 1 also is included as the power supply 12 of fixation unit 11a power supply, and power supply 12 comprises: triode AC switch (TRIAC) 12a, carry out switching manipulation with the temperature of control fixation unit 11a.In addition, imaging device 1 also comprises the controller 13 of the switching manipulation of control TRIAC 12a.Controller 13 is based on the phase control TRIAC 12a of the interchange that is provided by power supply 12 (AC) power supply, so imaging device 1 comprises the phase detectors 14 for detection of the phase place of AC power supplies.
In addition, power supply 12 comprises: relay 12b, and be used for cutting off the power supply to fixation unit 12a, thereby under standby mode, minimize the power consumption of TRIAC 12a, when not being used, described imaging device 1 enters described holding state.
Fig. 2 shows relay 12b and the phase detectors 14 in traditional imaging device 1.As shown in Figure 2, be provided with relay 12b on the supply path between AC power supplies and fixation unit 11a, and be communicated with/cut off based on the relay and control signal.If imaging device 1 normal running, then relay 12b is connected, thereby provides AC power supplies from power supply 12 to fixation unit 11a.Yet if imaging device 1 enters standby mode, relay 12b is cut off, thereby can not provide AC power supplies to fixation unit 11a from power supply 12.
Yet, in traditional imaging device 1, because phase detectors 14 are positioned at the downstream of relay 12b, when relay 12b was cut off and do not provide AC power supplies to fixation unit 11a and phase detectors 14, phase detectors 14 can not correctly detect the phase place of AC power supplies.Specifically, under standby mode, need to monitor whether provide AC power supplies to traditional imaging device 1, if and AC power supplies is cut off then executing data backup, system are reseted (namely, CPU (CPU) is restarted) etc. operation, but because relay 12b is disconnected, so can not carry out this operation.
In order to address this problem, phase detectors 14 are arranged on the upstream of the relay 12b relative with an end, so just can detect the phase place of AC power supplies, yet still exist and satisfy the power that under standby mode, consumes and should not exceed predetermined power (for example, 1W) the problem of constraints.Traditionally, phase detectors 14 comprise a plurality of diodes and resistance, are difficult for making this configuration meet the desired the power constraints condition therefore.
Yet, during normal mode and standby mode, need constantly precise phase control, therefore need a kind of imaging device that meets the need 1.
Summary of the invention
Therefore, general plotting of the present invention provides a kind of imaging device and control method thereof that can correctly detect power phase under standby mode and normal mode and satisfy the constraints of power consumption demand.
Other aspect and/or the purposes of general plotting of the present invention will partly be set forth in the following description, and partly will become clear according to describing, and perhaps can understand by implementing present general inventive concept.
Being on the other hand of general plotting of the present invention provides a kind of imaging device and the control method thereof that can carry out precise phase control under normal mode and standby mode.
Above and/or other aspects of general plotting of the present invention and purposes can realize that described equipment comprises by a kind of imaging device with normal mode and standby mode is provided: image-generating unit, imaging; Switch element optionally allows to power to image-generating unit; Controller is based on the phase signal control switch unit of power supply; Power-off unit cuts off the power supply to image-generating unit under standby mode; And phase detectors, be connected to the two ends of power-off unit, be in the phase place that detects power supply under normal mode or the standby mode through the out of phase detection line with basis, and the phase signal of out-put supply, thereby the power consumption of imaging device is no more than predetermined value under standby mode.
Phase detectors can comprise: the first resistance unit is connected to the first end of power-off unit, to be formed on the first phase place detection line under the standby mode; The second resistance unit as in parallel the same with the first resistance unit, is connected to the relative end of first end of power-off unit, to be formed on the second phase place detection line under the normal mode; With the current phase transducer, export the phase signal of the power supply corresponding with the electric current of one of the first phase place detection line and second phase place detection line.
The resistance of the first resistance unit can be set up, thus under standby mode the about 1W of imaging device consumption or power still less.
The parallel resistance of the first resistance unit and the second resistance unit can be set up, thereby the phase signal of power supply has about 1msec or less pulsewidth under normal mode.
The current phase transducer can comprise photoelectrical coupler, and described photoelectrical coupler can comprise: luminescence unit, connect with the first resistance unit and the second resistance unit; And light receiving unit, based on the phase signal of the light out-put supply that sends from luminescence unit.
Controller can monitor based on the phase signal of power supply under the standby mode whether powering.
If power supply is cut off, but at least one operation during then controller executing data backup and system reset.
Above and/or other aspects of general plotting of the present invention and purposes can realize that described equipment comprises by a kind of imaging device with normal mode and standby mode is provided: image-generating unit, imaging; Switch element is optionally powered to image-generating unit; Controller is based on the phase signal control switch unit of power supply; Power-off unit cuts off the power supply to image-generating unit under standby mode; And phase detectors, detect the phase place of power supply and the phase signal of out-put supply, thus make the pulsewidth of phase signal under normal mode be not more than the first reference value and so that under standby mode the power consumption of imaging device be no more than the second reference value.
Phase detectors can comprise: the first resistance unit is connected to the first end of power-off unit; The second resistance unit as in parallel the same with the first resistance unit, is connected to the relative end of first end of power-off unit; With the current phase transducer, the phase signal of power supply is outputed to controller, described phase signal has the pulsewidth corresponding with the current strength that flows in the first resistance unit and the second resistance unit.
The resistance of the first resistance unit can be set up, thereby the second reference value under the standby mode is about 1W.
The parallel resistance of the first resistance unit and the second resistance unit can be set up, thereby the first reference value under the normal mode is about 1msec.
The current phase transducer can comprise photoelectrical coupler, and described photoelectrical coupler can comprise: luminescence unit, connect with the first resistance unit and the second resistance unit; And light receiving unit, based on the phase signal of the light out-put supply that sends from luminescence unit.
Controller can monitor based on the phase signal of power supply under the standby mode whether powering.
If power supply is cut off, but at least one operation during then controller executing data backup and system reset.
Above and/or other aspects and the purposes of general plotting of the present invention can realize by the method that provides a kind of control to have the imaging device of normal mode and standby mode, described method comprises: the phase place that offers the power supply of imaging device by detection is come the phase signal of out-put supply, thereby the pulsewidth that makes phase signal under normal mode is not more than the first reference value, and the power consumption of imaging device is no more than the second reference value under standby mode; Power by carrying out switching manipulation based on the phase signal of power supply under the normal mode; Operate to cut off the power supply with shutdown switch under standby mode.
The step of the phase signal of out-put supply can comprise: according to the phase place that is in normal mode or standby mode and detects through the out of phase detection line power supply.
The first reference value can be about 1msec.
The second reference value is about 1W.
Under standby mode, can monitor based on the phase signal of power supply whether powering.
If outage, but then executing data backup and system reset at least one operation in the operation.
Above and/or other aspects of general plotting of the present invention and purposes can realize by a kind of imaging device is provided, described equipment comprises: controller, the phase signal of the main power source that detection provides from power supply, and control first power and second power corresponding with the first mode of imaging device and the second pattern respectively, described the first power and the second power are provided for imaging device based on the phase signal of main power source, controller by the phase signal of the first path detection main power source, passes through the phase signal of the second path detection main power source during the second pattern during first mode.
Described imaging device also can comprise: power-off unit, and between power supply and image-generating unit.
The first path can be defined as between power supply and the power-off unit a bit to controller.
The second path can be defined as between power-off unit and the image-generating unit a bit to controller.
First mode can be standby mode, and the second pattern can be normal mode.
The first power can be less than the second power.
Above and/or other aspects of general plotting of the present invention and purposes can realize that described equipment comprises: image-generating unit by a kind of imaging device is provided; Power supply; Relay is between power supply and image-generating unit; And phase detectors, have two end points that are connected to the relative two ends of relay, and the other end is connected between power supply and the image-generating unit, control power supply to the power supply of image-generating unit with detected phase.
Description of drawings
By below in conjunction with the description of accompanying drawing to exemplary embodiment, it is clear and easier to understand that above and/or other aspects of general plotting of the present invention and purposes will become, wherein:
Fig. 1 shows the illustrative configurations of the imaging device that relates to general plotting of the present invention;
Fig. 2 shows the illustrative configurations of the phase detectors in traditional imaging device;
Fig. 3 shows the illustrative configurations of the imaging device of the exemplary embodiment of general plotting according to the present invention;
Fig. 4 shows the pulsewidth of the phase signal H in the imaging device of the exemplary embodiment of general plotting according to the present invention;
Fig. 5 and Fig. 6 show the experimental example of the pulsewidth of the phase signal H in the imaging device of the exemplary embodiment of general plotting according to the present invention; With
Fig. 7 and Fig. 8 show other experimental examples of the pulsewidth of the phase signal H in the imaging device of the exemplary embodiment of general plotting according to the present invention.
Embodiment
Be described in detail now with reference to the exemplary embodiment of accompanying drawing to general plotting of the present invention, same numeral represents same components all the time.The exemplary embodiment of general plotting according to the present invention, imaging device can be by forming the image corresponding with view data such as document, photo at recording mediums such as paper printer, multi-function peripheral etc. realize.In addition, the exemplary embodiment of general aspect design according to the present invention, imaging device can be with the photovoltaic imaging, such as laser printer.Yet general plotting of the present invention is not limited to this.
The imaging device of the exemplary embodiment of general plotting comprises according to the present invention: image-generating unit, imaging; Power supply is powered to image-generating unit; Controller, the control power supply; Phase detectors detect power phase.If specifically describe hereinafter, then the image-generating unit in this exemplary embodiment, power supply, controller and phase detectors respectively with image-generating unit 11, power supply 12, controller 13 and the phase detectors 14 identical or basic simlarities of the imaging device 1 of Fig. 1.
Fig. 3 illustrates fixation unit 101, TRIAC102, relay 103 and the phase detectors 104 of the imaging device 300 of the general plotting according to the present invention.According to the present invention the fixation unit 101 of the imaging device 300 of general plotting, TRIAC 102 and relay 103 respectively with fixation unit 11a, TRIAC 12a or the basic simlarity identical with relay 12b of the imaging device 1 of Fig. 1 and Fig. 2.TRIAC 102 and relay 103 are examples of switch element and the power-off unit of the exemplary embodiment of general plotting according to the present invention.As shown in Figure 3, imaging device 300 can comprise: feed unit, feeding print media; Image-generating unit is included in the fixation unit 101 of imaging on the print media; And power-supply controller of electric.
As shown in Figure 3, phase detectors 104 comprise: the first resistance unit 104a, the second resistance unit 104b, photoelectrical coupler 104c, the 3rd resistance unit 104d and the 4th resistance unit 104e.Photoelectrical coupler 104c is the example of the electric current-phase converter of the exemplary embodiment of general plotting according to the present invention.
In the exemplary embodiment, the first resistance unit 104a can comprise at least one resistance, and the one end is connected to for example first end A of the relay 103 between the first end A of power supply AC and relay 103.The second resistance unit 104b can comprise at least one resistance, and the one end is connected to the second end B of relay 103.The opposite end of the first resistance unit 104a and the second resistance unit 104b is connected to the first end C of the luminescence unit of photoelectrical coupler 104c.
In the exemplary embodiment, the resistance of the first resistance unit 104a is set up, thereby the power that the imaging device 300 under first mode (such as, standby mode) consumes is no more than predetermined value.In the exemplary embodiment, the power of the imaging device consumption under the standby mode can be no more than general 1W.Here, the first resistance unit 104a can have the resistance of about 600K Ω.Yet general plotting of the present invention is not limited to this.
Simultaneously, consider that the resistance of the first resistance unit 104a arranges the resistance of the second resistance unit 104b.In other words, the parallel resistance of the first resistance unit 104a and the second resistance unit 104b is set up, thereby the phase signal H of interchange (AC) power supply has the pulsewidth of the predetermined value of being equal to or less than.In current exemplary embodiment, the predetermined value of the pulsewidth of the phase signal H under the second pattern (such as normal mode) can be about 1msec (with reference to Fig. 5).Yet general plotting of the present invention is not limited to this.That is, in the exemplary embodiment, imaging device 300 can comprise 3 or multi-mode more.
In the exemplary embodiment, if the first resistance unit 104a has the resistance of about 600K Ω, then the second resistance unit 104b can have the resistance of about 100K Ω.The first resistance unit 104a and the second resistance unit 104b can have the resistance of the different configurations in the scope that satisfies given or expectation resistance.In the exemplary embodiment, the first resistance unit 104a can comprise two pairs of parallel resistance groups, every group of resistance with 3 series connection, and the second resistance unit 104b also can comprise the resistor group with 3 series resistances.
Photoelectrical coupler 104c comprises: the luminescence unit (not shown), send the light corresponding with electric current; With the light receiving unit (not shown), be switched on and turn-off according to the light intensity that sends from luminescence unit.The second end D of the luminescence unit of photoelectrical coupler 104c is connected to AC power supplies one side (with reference to the E of Fig. 3).The first end F ground connection of the light receiving unit of photoelectrical coupler 104c, the second end G is connected to the 3rd resistance unit 104d.Yet general plotting of the present invention is not limited to this.
In the exemplary embodiment, each of the 3rd resistance unit 104d and the 4th resistance unit 104e comprises at least one resistance, and is connected in series.The 4th resistance unit 104e one end is connected to direct current (DC) power supply V DCTie point H between the 3rd resistance unit 104d and the 4th resistance unit 104e is as the output of phase signal.In this exemplary embodiment, respectively, the 3rd resistance unit 104d can be approximately 330K Ω, and the 4th resistance unit 104e can be approximately 33K Ω.Yet general plotting of the present invention is not limited to this.
Below, will the operation of the phase detectors 104 of the exemplary embodiment of general plotting according to the present invention be described in further detail.The first resistance unit 104a forms first phase place detection line (route) A~C, and the second resistance unit 104b forms second phase place detection line B~C.At first, if relay 103 is under the second pattern (can be normal mode) at closure state and imaging device, then the first resistance unit 104a and the second resistance unit 104b are in parallel.In this case, most electric currents flow to the luminous power of photoelectrical coupler 104c through the second resistance unit 104b, this is because the second resistance unit 104b can have the resistance relatively lower than the resistance of the first resistance unit 104a (that is, the second phase place detection line).
In another kind of exemplary embodiment, if imaging device 300 enters standby mode and relay 103 disconnects, then there is not electric current to flow through in the relay 103.Therefore, electric current is through the luminescence unit mobile (that is, first phase place detection line) of the first resistance unit 104a to photoelectrical coupler 104c.
Therefore, no matter relay 103 is to disconnect or closure, electric current can be all mobile to the luminescence unit of photoelectrical coupler 104c, thereby photoelectrical coupler 104c can correctly detect the phase place H of AC power supplies.Specifically, even relay 103 is disconnected at standby mode, then still can only come detected phase by the simple structure that comprises the first resistance unit 104a, the second resistance unit 104b and photoelectrical coupler 104c, but and the few power of consumption rate normal mode.
Under standby mode, controller can monitor whether provide AC power supplies based on the phase place H of AC power supplies.If AC power supplies is cut off, but operations such as (that is, central processing unit (CPU) are restarted) is reseted in then controller executing data backup, system.Yet general plotting of the present invention is not limited to this.
In this exemplary embodiment, because the first resistance unit 104a is set to have suitable resistance as mentioned above, so can satisfy to the requirement of power constraints condition (for example, 1W).According to based on the above-mentioned experimental result that provides resistance, the fusing circuit of imaging device 300 (described fusing circuit comprises fixation unit 101, TRIAC 102, relay 103 and the phase detectors 104 of Fig. 3) consumes the power of about 0.1W or lower under standby mode.On the other hand, as a reference, the fusing circuit of imaging device 300 consumes the power of about 0.53W or more under normal mode.
Simultaneously, as follows according to the phase place H of the AC power supplies of different situations.In this exemplary embodiment, the parallel resistance of the first resistance unit 104a and the second resistance unit 104b in the situation that relay 103 is closed less than situation about being disconnected at relay 103 under the resistance of the first resistance unit 104a, thereby the intensity of electric current that flows through in the previous case the luminescence unit of photoelectrical coupler 104c can be greater than the intensity of the electric current of the luminescence unit that flows through photoelectrical coupler 104c under the latter event.Therefore, the pulsewidth of phase signal H can be less than the pulsewidth of phase signal H when relay 103 disconnects when relay 103 closure.
Fig. 4 shows the pulsewidth of the phase signal H of the situation of basis when relay is disconnected and is closed.As shown in Figure 4, even pulsewidth is also relatively large when relay 103 is disconnected, so because under standby mode, can not accurately control TRIAC 102 not to the problem of phase control.Pulsewidth when on the other hand, the pulsewidth when relay 103 is closed is disconnected less than relay 103.In this exemplary embodiment, imaging device 300 normal runnings, and therefore need to carry out accurate phase control to TRIAC 102.In this exemplary embodiment, the pulsewidth of the phase signal H that phase detectors 104 detect is enough narrow to satisfy accurate phase control.
As mentioned above, satisfy the resistance of the second resistance unit 104b of this effect based on experiment setting, thereby the pulsewidth of the phase signal H under the normal mode is no more than the required predetermined value of accurate control.
Fig. 5 and Fig. 6 show the experimental example of the pulsewidth of the phase signal H when relay 103 is closed and when relay 103 is disconnected in imaging device 300 of the exemplary embodiment of the general plotting according to the present invention.Here, the number of samples that uses in the trunnion axis indication experiment, the chronomere of vertical axis indication pulsewidth.With reference to Fig. 5, when relay 103 closure, under the condition of AC 220V and 60Hz, phase signal H has about 1msec or lower pulsewidth, and therefore enough carries out accurately control under such pulsewidth condition.
Fig. 7 and Fig. 8 show other experimental examples of the pulsewidth of phase signal H in the imaging device of the exemplary embodiment of general plotting according to the present invention.Here, the waveform of AC power supplies when relay 103 closed and disconnected is indicated respectively in label " 71 " and " 81 ".In addition, the waveform of the phase signal H of label " 72 " and " 82 " indication in each situation.That is to say that label " 72 " and " 82 " are respectively the waveform of phase signal H when relay closes and disconnection.Similar with Fig. 6 to Fig. 5, when relay 103 closure, the pulsewidth of phase signal H (seeing " 72 ") is very narrow, thus the accurate control of the enough carry out desired of this pulsewidth.
As mentioned above, general plotting of the present invention provides a kind of imaging device that can correctly detect power phase under standby mode and normal mode and satisfy the constraints of power consumption requirement, and control method.
In addition, general plotting of the present invention provides a kind of imaging device that can carry out precise phase control under standby mode even under normal mode, and control method.
General plotting of the present invention also can be embodied as the computer-readable code on the computer-readable medium.Described computer-readable medium can comprise computer readable recording medium storing program for performing and computer-readable transmission medium.Described computer readable recording medium storing program for performing is that any store thereafter can be by the data storage device of the data of computer system reads.The example of described computer readable recording medium storing program for performing comprises: read-only memory (ROM), random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage device.Described computer readable recording medium storing program for performing also can be distributed on the computer system of network connection, so that described computer-readable code is stored and is performed with distribution mode.Described computer-readable transmission medium can send carrier wave or the signal wired or Wireless Data Transmission of the Internet (for example, through).In addition, functional programs, code and the code segment of realizing general plotting of the present invention can easily be realized by the programming personnel in the field under the general plotting of the present invention.
Although illustrated and described some exemplary embodiments of general plotting of the present invention, but those skilled in the art are to be understood that, in the situation of the principle that does not break away from present general inventive concept and spirit, can change these exemplary embodiments, the scope of general plotting of the present invention limits in claim and equivalent thereof.

Claims (7)

1. imaging device with normal mode and standby mode comprises:
Image-generating unit, imaging;
Switch element optionally allows to power to image-generating unit;
Controller is based on the phase signal control switch unit of power supply;
Power-off unit cuts off the power supply to image-generating unit under standby mode; With
Phase detectors, be connected to the two ends of power-off unit, be in the phase place that detects power supply under normal mode or the standby mode through the out of phase detection line with basis, and the phase signal of out-put supply, thereby the power consumption of imaging device is no more than predetermined value under standby mode.
2. imaging device as claimed in claim 1, wherein, phase detectors comprise:
The first resistance unit is connected to the first end of power-off unit, to be formed on the first phase place detection line under the standby mode;
The second resistance unit as in parallel the same with the first resistance unit, is connected to the relative end of first end of power-off unit, to be formed on the second phase place detection line under the normal mode; With
The current phase transducer is exported the phase signal of the power supply corresponding with the electric current of one of the first phase place detection line and second phase place detection line.
3. imaging device as claimed in claim 2, wherein, the resistance of the first resistance unit is set up, thus imaging device consumption is not more than the power of 1W under standby mode.
4. imaging device as claimed in claim 2, wherein, the parallel resistance of the first resistance unit and the second resistance unit is set up, thus the phase signal of power supply has the pulsewidth that is not more than 1msec under normal mode.
5. imaging device as claimed in claim 2, wherein, the current phase transducer comprises photoelectrical coupler, described photoelectrical coupler comprises: luminescence unit, connect with the first resistance unit and the second resistance unit; And light receiving unit, based on the phase signal of the light out-put supply that sends from luminescence unit.
6. such as the described imaging device of arbitrary claim in the claim 1 to 5, wherein, controller monitors whether powering based on the phase signal of power supply under the standby mode.
7. imaging device as claimed in claim 6, wherein, if power supply is cut off, then the backup of controller executing data and system reset at least one operation in the operation.
CN2009100034045A 2008-03-03 2009-01-12 Image forming apparatus and control method thereof Expired - Fee Related CN101527765B (en)

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KR1020080019843 2008-03-03
KR20080019843 2008-03-03
KR10-2008-0019843 2008-03-03
KR1020080042809A KR101239952B1 (en) 2008-03-03 2008-05-08 Image forming apparatus and control method thereof
KR10-2008-0042809 2008-05-08
KR1020080042809 2008-05-08

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KR101365602B1 (en) 2011-10-21 2014-03-14 삼성전자주식회사 Apparatus for power supplying and image forming apparatus including the same
CN112147866A (en) * 2020-10-15 2020-12-29 广州众诺电子技术有限公司 Consumable cartridge, consumable cartridge control method, consumable replenishment method, and storage medium

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CN1656795A (en) * 2002-05-28 2005-08-17 株式会社尼康 Electronic camera

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CN1471298A (en) * 2002-07-26 2004-01-28 ��ʽ���綫֥ Recording/reproducing apparatus and power supply method
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KR101239952B1 (en) 2013-03-06

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