CN106547180A - Supply unit and image processing system - Google Patents
Supply unit and image processing system Download PDFInfo
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- CN106547180A CN106547180A CN201510589108.3A CN201510589108A CN106547180A CN 106547180 A CN106547180 A CN 106547180A CN 201510589108 A CN201510589108 A CN 201510589108A CN 106547180 A CN106547180 A CN 106547180A
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- current value
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5004—Power supply control, e.g. power-saving mode, automatic power turn-off
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5016—User-machine interface; Display panels; Control console
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
The present invention relates to supply unit and image processing system, in the supply voltage being input into motor driving chip, in making signal, motor rotary speed control signal or clock signal and motor current setting signal, when the right door of image processing system is opened, supply voltage is not cut off, only motor rotary speed control signal or clock signal are cut off, and the electric current to motor input is suitably set according to the different of failure, dash current can be suppressed, fixation unit preheating time of existing level etc. can be maintained again, moreover it is possible to correspondingly realize energy-saving effect.The supply unit possesses power supply, cover, 1 sidepiece part, rectification circuit, 2 sidepiece parts, detector unit and control units, in the case where cover is formed as closed position, current value is controlled to the first current value by control unit, in the case where cover is formed as opening posture, control unit is controlled to current value more than 0, and the second current value below the first current value, and control signal is cut off.
Description
Technical field
The present invention relates to supply unit and image processing system, can more particularly to suppress impact
The supply unit and image processing system of electric current.
Background technology
In the past, it is known that and image processing system (such as printer, it is main with printer in this specification
As a example by illustrate) possess opening and closing door (such as right door or Qianmen etc.) freely.Generally, when with
Family or attendant are intended to overhaul failure (for example take out paperboard) or change fixing single
Need to open right door during the parts such as unit, when user or attendant's developing apparatus to be changed or sense
Need to open Qianmen during the parts such as light drum.In this manual, mainly illustrate by taking right door as an example.
In the case where user or attendant open right door, cutting needle is needed to being arranged at printing
The supply of the electric power of the motor near the right door of machine so that the motor stops carrying out action.By mesh
Before, by the supply voltage of directly cut-out 24v realizing this purpose in prior art.
If the replacement operation of the upkeep operation of failure or part is finished, in order to recover normal operating
And need to close right door and restart motor.In the moment of motor restarting, it will usually
Produce dash current.
Fig. 1 shows unlatching of the current value of the prior art with right door, the migration of closed mode
And the situation for changing, as shown in the drawing, due in the purpose for trouble hunting or part replacement
And the supply of electric power when right door is opened, has been cut off, therefore current value remains zero.Further, when event
When barrier maintenance or the operation of part replacement are finished and close right door, current value was suddenly climbed in moment
Peak value is risen to, is fallen after rise in the short period of time to the stable electricity for maintaining printer to run well then
Flow valuve.
In fact, above-mentioned peak value is the size of dash current.However, address in this specification
The size of dash current is mainly by above-mentioned peak value and stabling current value (electric current during normal operation
Value) between difference weighing, therefore, as long as not stating in advance, impact in this specification
Electric current means the difference of above-mentioned peak value and stabling current value.
It is also, the dash current is bigger, bigger to the harmful effect caused by electrical equipment, cause
Its durability deterioration, service life shorten.
Therefore, the demand of the dash current is suppressed to arise at the historic moment.For example, carry in patent document 1～2
Going out has following technical scheme：When the right door of open printing machine, by the above-mentioned 24v to motor supply
Supply voltage cut-out, if trouble hunting operation or part replacement operation are finished, closing right door
When be gently input into electric current for drive motor.
During Fig. 2 illustrates the technology involved by the patent document 1～2 for taking dash current Retraining Measures
The figure of situation that changes with the unlatching of right door, the migration of closed mode of current value.By right
Fig. 2 and Fig. 1 is compared and understands, takes the impact in the patent document 1,2 of Retraining Measures
Electric current decreases, so as to the harmful effect caused because dash current is excessive can be inhibited.
However, in patent document 1～2, in order that motor stopping action, is required to 24v's
Supply voltage cuts off, moreover, in addition it is also necessary to cut off the power supply of the parts such as fixation unit.Further,
When right door is closed, need to recover to drive the power supply of motor the motor to rotate.
On the other hand, the control principle according to motor, as shown in figure 5, in order to drive motor rotates,
Supply voltage (usually 24v), make signal (enable), motor rotary speed control signal (PWM)
Or clock signal and motor current setting signal it is indispensable, these signals or voltage are then
There is provided by CPU or power supply.
In addition, pwm signal or clock signal are mainly used in the rotating speed for controlling motor.Such as Fig. 6
A, shown in (), Fig. 6 (b), Ton represents signal on-state duration, and Toff represents letter
Number dissengaged positions duration, and, it is generally the case that the size of motor rotary speed is depended on
The size of the ratio of Ton/Toff, in other words, motor rotary speed and Ton/Toff positive correlations.Due to figure
Ton2s of the Ton1 of the signal 1 shown in 6 (a) more than the signal 2 shown in Fig. 6 (b), and
And, the Toff2 of the signal 2 shown in the Toff1 and Fig. 6 (b) of the signal 1 shown in Fig. 6 (a)
It is equal, therefore, for the motor of the signal 1,2 for being applied with Fig. 6 (a) and Fig. 6 (b) respectively
For rotating speed N1, N2, it is clear that N2 is more than N1.Therefore, pwm signal or clock signal
Be switched off/on for suppress dash current impact it is faint.
Thus, pwm signal is cut off when as patent document 1～2 in open printing machine right door
Or in the case of clock signal, any shadow is nearly free from for the effect of dash current is suppressed
Ring.But, if the supply voltage (24v) of motor is cut off in the right door of open printing machine, then,
It is gently right when the technical scheme as described in patent document 1,2 when closing printer right door
In the case of motor input current, although dash current can be suppressed to a certain extent, suppress
Effect insufficient.
If in addition, as shown in figure 1, suppression dash current is taken unlike patent document 1～2
Countermeasure, then electrical equipment will necessarily be had undesirable effect due to the excessive of dash current, very
Damage to electrical equipment is caused.
Therefore, in prior art, there are the following problems：Dash current cannot fully be suppressed.
Patent document 1：Japanese Unexamined Patent Publication 2000-197266 publications
Patent document 2：Japanese Unexamined Patent Publication 2008-51132 publications
The content of the invention
The present invention is completed to solve above-mentioned problem, its object is to provide supply unit with
And image processing system, can especially suppress the supply unit and image of dash current to form dress
Put.
An embodiment of the invention provides a kind of supply unit, and alternating current is circulated by the supply unit
It is changed to DC current, it is characterised in that possess：Power supply；Cover, its can be formed as open posture with
And closed posture, when being formed as opening posture so that the inside of the supply unit is exposed, work as formation
For closed posture when the inside of the supply unit and outside are separated；1 sidepiece part, which is used to connect
By the alternating current；Rectification circuit, which carries out whole to the alternating current that 1 sidepiece part receives
Stream；2 sidepiece parts, which will be supplied to load using the DC current after the rectifier circuit rectifies；
Detector unit, its open and-shut mode to the cover are detected；And control unit, which is according to the cover
Open and-shut mode, current value to from the alternating current to the load supply and described negative for driving
The control signal of load is controlled, in the case where the cover is formed as opening posture, the control unit
The current value is controlled to into the second current value more than 0, and the control signal is cut off.
According to above-mentioned supply unit, dash current can be suppressed such that it is able to suppress because of dash current
The damage caused to electrical equipment, improves the service life of electrical equipment.
In above-mentioned supply unit, it is preferable that in the case where the cover is formed as closed position,
The current value is controlled to the first current value to the load supply by the control unit, and described the
Two current values are less than first current value.
According to above-mentioned supply unit, can equally suppress dash current.In addition, due to by
Two current values are set smaller than the first current value, therefore, compared with the first technical scheme, additionally it is possible to
Suppress the waste of electric power to improve energy-saving effect.
In above-mentioned supply unit, the presence or absence of opening and closing posture and failure based on the cover judge
Whether second electric current is applied.
According to above-mentioned supply unit, for example, in the situation that cover is formed as closed position and breaks down
Under, apply the second electric current.Thus, dash current can equally be suppressed, also, as described above,
Compared with the first technical scheme, additionally it is possible to suppress the waste of electric power to improve energy-saving effect.
In above-mentioned supply unit, it is preferable that in time ratio regulation of the cover in posture is opened
In the case of time length, the control unit makes the current value be changed to institute from second current value
State below the first current value, and higher than the value of second current value.
It is according to above-mentioned supply unit, longer than stipulated time when time of the cover in posture is opened
When, it is possible to determine that the operation carried out in a period of by opening in the cover is the inspection of the failures such as paperboard
Repair or the replacing of part such as print cartridge and the operation will be finished, in other words, it is possible to determine that be
The cover will be closed.Thus, if the current value is set higher than second electric current now
Value, and it is consistent with result of determination in the first current value value below, and practical situation, then
Dash current can further be suppressed.
In above-mentioned supply unit, it is preferable that in time ratio regulation of the cover in posture is opened
In the case of time length, the current value is changed to greatly by the control unit from second current value
In 0, and less than the value of second current value.
It is according to above-mentioned supply unit, longer than stipulated time when time of the cover in posture is opened
When, it is possible to determine that the operation that the carries out not failure such as paperboard in a period of by opening in the cover
Simple operation as the replacing of part such as maintenance or print cartridge, the time needed for the operation has can
Can far more than anticipation time, in other words, it is possible to determine that be to still need till the operation is finished
The substantial amounts of time.Thus, if now the current value is changed to be more than from second current value
0th, and less than the value of second current value, and practical situation it is consistent with result of determination, then can
Enough suppress dash current.Moreover, compared with the first technical scheme, additionally it is possible to further improve
The effect of energy-conservation (saving electric power).
In above-mentioned supply unit, it is preferable that in time ratio regulation of the cover in posture is opened
In the case of time length, the current value is set as 0 by the control unit.
It is according to above-mentioned supply unit, longer than stipulated time when time of the cover in posture is opened
When, it is possible to determine that the operation that the carries out not failure such as paperboard in a period of by opening in the cover
Simple operation as the replacing of part such as maintenance or print cartridge, till the operation is finished still
Need the substantial amounts of time.In addition, it is being judged to cause not electrical equipment because of dash current
In the case that good impact is in the range of it can allow for, if now the current value is directly reduced
To 0A, and practical situation is consistent with result of determination, then compared with the first technical scheme, can
Greatly improve the effect of energy-conservation (saving electric power).
In above-mentioned supply unit, it is preferable that set the stipulated time according to the content of failure
It is set to different values.
According to above-mentioned supply unit, even if the failure for occurring is simple paper jam error, then, root
According to paperboard position, the difference of the nearby side of the inboard or device of such as image processing system, maintenance
Time needed for the failure also differs widely.In addition, the failure for occurring is it is also possible that be different from
The significant trouble of the simple fault of paper jam error etc, in this case, the required time is then longer.
Therefore, as described above, specifying the optimal time according to the different of defect content, suppression can be realized
The effect of dash current processed, additionally it is possible to more improve energy-saving effect than the first technical scheme.
In above-mentioned supply unit, it is preferable that the detector unit is arranged in 2 sidepieces
The interlocking switch of part, has electrical storage device, between the interlocking switch and the load described
In the case that cover is formed as opening posture, the control unit is controlled to and load is supplied with the current value
To electric power.
According to above-mentioned supply unit, when opening cover because processing paper jam error etc., one can be entered
Step guarantees the personal safety of user or maintainer.
In above-mentioned supply unit, it is preferable that remnants of the control unit according to the electrical storage device
Electricity and control the current value.
According to above-mentioned supply unit, the electric current is controlled according to the remaining capacity of the electrical storage device
Value, thus, it is possible to suppress dash current.
In above-mentioned supply unit, it is preferable that the load is used for when being and image is formed on paper
Convey the conveying roller of the paper.
Other embodiments of the present invention provide a kind of image processing system, and which is used to be formed on paper
Image, the image processing system are characterised by possessing：Power supply；Cover, which can be formed as opening
Posture and closed posture, cause described image to form the inside dew of device when being formed as and opening posture
Go out, the inside that described image forms device is separated with outside when closed posture is formed as；1 side
Part, which is used to receive the alternating current；Rectification circuit, which receives to 1 sidepiece part
Alternating current carries out rectification；2 sidepiece parts, which is by using the direct current after the rectifier circuit rectifies
Flow direction load supply；Detector unit, its open and-shut mode to the cover are detected；And control unit,
Its open and-shut mode according to the cover, the current value and use to the alternating current to the load supply
In driving the control signal of the load to be controlled, be formed as opening the situation of posture in the cover
Under, the current value is controlled to the second current value more than 0 by the control unit, and by the control
Signal cut.
According to above-mentioned image processing system, dash current, decrease can be suppressed to cause electrical equipment
Harmful effect, improve the service life of electrical equipment.
Description of the drawings
Fig. 1 be illustrate current value in prior art (dash current Retraining Measures are not carried out) with
The unlatching of right door, the migration of closed mode and the figure of situation that changes.
Fig. 2 is to illustrate prior art (implementing the patent document 1,2 of dash current Retraining Measures)
In the figure of situation that changes with the unlatching of right door, the migration of closed mode of current value.
Fig. 3 is the integrally-built frame for schematically showing image processing system involved in the present invention
Figure.
Fig. 4 is the circuit diagram of the circuit structure for schematically showing the present invention.
Fig. 5 is the schematic diagram of the driving principle for illustrating motor.
Fig. 6 (a), Fig. 6 (b) are to illustrate motor rotary speed control (PWM) signal or clock
The figure of the relation between signal and motor rotary speed.
Fig. 7 (a), Fig. 7 (b) are that the You Menguan involved by embodiments of the present invention is shown respectively
Control model when closing (motor normal operation) and when right door opens (motor action stopping)
Figure.
Fig. 8 is current value in the technology involved by embodiments of the present invention that illustrates with right door
Open, the migration of closed mode and the figure of situation that changes.
Fig. 9 (a), Fig. 9 (b) are to illustrate the technology involved by other embodiments of the present invention
The figure of situation that changes with the unlatching of right door, the migration of closed mode of current value.
Figure 10 (a), Figure 10 (b) are to illustrate the technology involved by other embodiments of the present invention
In the figure of situation that changes with the unlatching of right door, the migration of closed mode of current value.
Specific embodiment
Hereinafter, the preferred embodiment of the present invention is described in detail based on accompanying drawing.In addition, right
For those skilled in the art, many of them can be realized under the enlightenment of these embodiments
Alternative is planted, the present invention is not limited to preferred embodiment described herein as.
Fig. 1 be illustrate current value in prior art (dash current Retraining Measures are not carried out) with
The unlatching of right door, the migration of closed mode and the figure of situation that changes.As it was previously stated, opening in You Men
The supply voltage of the 24v for drive motor is cut off when opening, therefore current value has remained zero.When
When right door is closed, current value suddenly rises to peak value in moment, returns in the short period of time then
Drop down onto the stable current value for maintaining printer to run well.The peak value of above-mentioned electric current and stationary value it
Difference is bigger, that is, dash current is bigger, bigger to the harmful effect caused by electrical equipment, causes
Its durability deterioration, service life shorten.And, dash current is bigger, the waste of electric power resource
It is more serious.
Therefore, it is desirable to suppress the dash current.Fig. 2 is to illustrate that patent document 1～2 (implements punching
Hit electric current Retraining Measures) in current value change with the unlatching of right door, the migration of closed mode
Situation figure.As shown in Figure 2, due to having cut off above-mentioned 24v's after the unlatching of right door
Supply voltage, therefore current value remains zero.After Jiang Youmen is closed, due to taking
The gently input current compared with the prior art (dash current Retraining Measures are not carried out) of Fig. 1
Retraining Measures, therefore dash current decreases, so as to because dash current is excessive cause it is bad
Impact can be inhibited.
But, as previously mentioned, although the technology involved by patent document 1～2 can be realized suppressing punching
The effect of electric current is hit, but cannot fully suppress dash current.In addition, work as printer right door is opened
Qi Shi, while motor stopping action and the supply voltage cut-out by 24v is made, in addition it is also necessary to cut off
The power supply of fixation unit.When right door is closed, while the power supply to motor is recovered, also
Need to connect the power supply of fixation unit and preheated which, only regulation temperature has been reached in preheating
Can implement to print after degree.In addition, the length and motor of the preheating time of the fixation unit
Rotating speed it is closely related, the rotating speed of motor is faster, and the speed that heating roller reaches target temperature is faster,
Correspondingly, preheating time is shorter, and vice versa.
On the other hand, Fig. 5 shows the driving principle of motor, as shown in Figure 5, in order to drive
Motor rotates, and supply voltage (usually 24v), makes signal (enable), motor rotary speed control
Signal (PWM) processed or clock signal and motor current setting signal are essential, this
A little signals or voltage are then provided by CPU or power supply.
In addition, Fig. 6 (a), Fig. 6 (b) be illustrate motor rotary speed control (PWM) signal or
The figure of the relation between person's clock signal and motor rotary speed, wherein, pwm signal or clock are believed
Number it is mainly used in controlling the rotating speed of motor.
Therefore, as long as the supply voltage (24v) of motor is cut off in the right door of open printing machine, then,
No matter using any technological means disclosed in patent document 1～2, although can realize suppressing
The effect of dash current, the preheating time for resulting in fixation unit but then again are elongated, also
It is to say, the effect for effectively suppressing dash current is to sacrifice the preheating time of fixation unit as cost
And exchange for.
On the other hand, if as shown in figure 1, suppression impact is taken unlike patent document 1～2
The countermeasure of electric current, although the preheating time of fixation unit correspondingly can be shortened, but will necessarily
Electrical equipment is had undesirable effect due to the excessive of dash current, even result in electrical equipment damage
It is bad.
As can be seen here, with the technical merit of prior art weighing, if visually likened,
Effect that might as well be by the effect of " suppression dash current " with " shortening fixation unit preheating time " is divided
The relation of fish and bear's paw is not likened to, to those skilled in the art, fish is difficult to simultaneous with bear's paw
, this has become a kind of usual thinking of this area.But, the present inventor but breaches
The constraint of this usual thinking, is attempted from brand-new angle, as a result, not only realizing
Fully suppress the effect of dash current, but also the pre- of fixation unit can be shortened to a certain extent
The hot time.
Fig. 3 is the integrally-built frame for schematically showing image processing system involved in the present invention
Figure.As shown in the drawing, image processing system involved in the present invention generally possesses main body (framework
Deng), scanner section, storage part, image forming part, sensor (detector unit), delivery section, control
Portion processed, sheet feed section, display part, exterior I/F (network interface), interlocking switch, electrical storage device,
Main switch, load (roller etc.).As for each part itself detailed configuration and each part each other
Between configuration relation, annexation etc., pardon herein and do not repeat.
Main body is mechanical mechanism (framework etc.) and electronic equipment in the shell of image processing system etc..
Scanner section is scanned to original copy, and the view data after scanning and other tasks are stored by control unit
To storage part.Image forming part carries out colour or monochrome image is formed.4 groups of image forming parts are
Form image forming part, the image of the image of formation magenta (M) of the image of yellow (Y)
Forming portion, the image forming part of the image of formation cyan (C) and formation black (K) figure
The image forming part of picture.Sensor is detected to the open and-shut mode of right door.Delivery section is by sheet feed section
Paper is conveyed via multiple rollers.In order to suppress dash current, control unit to enter current value
Row control.Display part shows the progress of task, information (such as, electricity during startup of dash current
Flow valuve) and the setting etc. that prints.Exterior I/F is for being connected to network, energy by image processing system
View data and other tasks are received enough.Interlocking switch is located near right door, by opening with right door
The linkage closed and open and-shut mode is switched over.Therefore, interlocking switch can also replace sensor and right
The open and-shut mode of right door is detected.Electrical storage device for open right door when to load supply electric current.
Alternating current is converted to DC current by supply unit involved in the present invention, is possessed：Power supply；
Right door (equivalent to cover), which can be formed as opening posture and closed posture, when being formed as out
So that the inside of supply unit is exposed when opening posture, when closed posture is formed as by supply unit
Inside is separated with outside；Input block (equivalent to 1 sidepiece part), which is used to receive alternating current
Stream；Rectification circuit, which carries out rectification to the alternating current received via input block；Output block
(equivalent to 2 sidepiece parts), which will be supplied to load using the DC current after rectifier circuit rectifies
Give；Detector unit, its open and-shut mode to right door are detected；And control unit, which is according to the right side
The open and-shut mode of door, to the current value to the alternating current for loading supply and for driving load
Control signal is controlled, and in the case where You Men is formed as opening posture, control unit is by the electricity
Flow valuve is controlled to the second current value more than 0, and the control signal is cut off.
Fig. 4 is the circuit diagram of the circuit structure for schematically showing the present invention.As shown in the drawing, hand over
It is stream power supply, main switch, 1 sidepiece part, 2 sidepiece parts, interlocking switch, electrical storage device, negative
Load is sequentially connected in series in order.Wherein, form whole between 1 sidepiece part and 2 sidepiece parts
Current circuit.
As shown in Fig. 7 (a), in order that motor runs well, the drive from CPU to motor is needed
Dynamic chip input makes (Enable) signal, pwm signal or clock signal and electric current
Setting signal (the usually current settings signal of more than 1.5A), and the driving from power supply to motor
Chip input supply voltage (24v).
Also, if part is overhauled or is changed to failure, right door is opened, now, such as
Shown in the Fig. 7 (b), in the present invention, only cut off the PWM that the driving chip to motor is input into
Signal or clock signal, and current settings signal is set to into below 0.5A.
According to mode is controlled as described above, as shown in figure 8, in one embodiment of the invention, on the right side
Door is input into small constant current (such as 0.5A) during opening all the time, thereby, it is possible to practical
Effectively suppress to close dash current produced during right door, also, compared with patent document 1～2,
Dash current can further be suppressed.In addition it is possible to the preheating time of fixation unit is maintained
Existing level.
In addition, as shown in Fig. 9 (a), Fig. 9 (b), when detector unit detects what right door was opened
When time exceedes certain stipulated time, trouble hunting can be judged in advance or part replacement operation will be complete
Finish, and right door will be closed, at this point it is possible to by motor setting electric current as shown in Fig. 9 (a)
0.8A is risen to, or motor setting electric current can also directly be carried as shown in Fig. 9 (b)
The up to starting current (1.5A) of motor, as a result, dash current further can be suppressed.Separately
Outward, equally the preheating time of fixation unit can be maintained existing level.
In addition, as shown in Figure 10 (a), when the time that detector unit detects right door unlatching exceedes
During certain stipulated time, the operation that can also be judged in advance open right door and carry out is not directed to simple fault
The relatively simple operation of the maintenance of (such as paperboard) or part (such as print cartridge) replacing etc,
Finish apart from the Job execution and even need considerable time.At this point it is possible to will be motor setting electric
Stream is reduced to 0.2A, as a result, can still suppress dash current, and, with above example
Compare, additionally it is possible to save electric power and realize energy-saving effect.
In addition, as shown in Figure 10 (b), being judged as dash current for caused by electrical equipment
Harmful effect it is weaker, and power savings raising become problem urgently to be resolved hurrily in the case of, can
So that motor setting electric current is directly reduced to 0A, although as a result, fail suppress dash current,
But for fixation unit preheating time does not result in any impact, it is essential that can realize
The significantly saving of electric power.
As described above, in embodiments of the present invention, according to the concrete reason for opening right door certainly
Move and suitably current value is switched over, it is in other words, right according to right door open-interval length
Current value is switched over.For example, it is being judged as that it is to process the simple of paperboard etc to open right door
In the case that the time of failure that is, the unlatching of right door is relatively short, after the stipulated time has been exceeded,
And current value is switched to into higher value before closing right door, thereby, it is possible to further suppress impact
Electric current.
On the other hand, be judged as opening right door be in order to process the failure more complicated than paper jam error,
That is, in the case that time for opening of right door is relatively long, after the stipulated time has been exceeded, and close
Current value is switched to into relatively low value before closing right door, thereby, it is possible to correspondingly suppress dash current,
And power savings can also be realized to a certain extent.Or it is being judged as dash current for electric
Current value directly can be switched in the case that the impact of element is weaker 0A, thus, Ji Nengwei
The fixation unit preheating time of existing level is held, and power savings can also be greatly improved.
Even if in addition, process failure mode it is identical, be for example all paper jam error in the case of,
According to the difference at the position for producing paperboard, the time needed for the failure that processes also differs widely.For example
If there is paper jam error away from the side of user or maintenance personal in the inboard of printer, locate
The time managed needed for the failure is longer, in this case, after the stipulated time has been exceeded, and close
Current value is switched to into relatively low value before closing right door, thereby, it is possible to correspondingly suppress impact
Electric current, and can also correspondingly improve power savings.If conversely, leaning in the nearby side of printer
There is paper jam error in the side of nearly user or maintenance personal, then process time needed for the failure compared with
It is short, in this case, after the stipulated time has been exceeded, and current value is cut before closing right door
Of a relatively high value is changed to, thus, can further be suppressed dash current, correspondingly can be improved again
Power savings.
In addition, above-mentioned embodiment be all possess interlocking switch by printer premised on, from function
From the perspective of, the interlocking switch can be referred to as safety switch again.If printer does not possess the interlocking
Switch, then can be considered as large bulk capacitance to accumulate the electric charge produced because of dash current.Cause
There is charge function for electric capacity so the impact electricity produced as user or maintenance personal's right door of closing
Stream can be stored.Appropriate motor current is selected to cut by detecting the amount of residual charge in electric capacity
Mold changing formula.Such as, the amount of residual charge be equal to or more than setting if by current settings be 0.5A.
Current settings, less than if setting, are 0.2A by the amount of residual charge.Or the amount of residual charge
More, current setting value is bigger.Dictate otherwise value be can also user or maintenance personal setting.
Certainly, above-mentioned electrical storage device is not limited to electric capacity, as long as can be accumulated to electric charge,
It can for example be battery.
In addition, in the above-described embodiment, the load is for defeated when image is formed on paper
Give the conveying roller of the paper.But, the load can also be other parts, for example, can be heating
Roller etc..
In addition, a kind of the further related to image processing system of the present invention, the image processing system can be with
It is defeated before controlling to close door (such as right door etc.) with the same mode of supply unit of the present invention
Enter electric current.Therefore, the image processing system can suppress dash current, can maintain existing level again
Image processing system fixation unit preheating time (resetting times of electric drive components), and
And energy-saving effect can also be realized to a certain extent.
Although preferred embodiments of the present invention have been disclosed for illustrative above, the present invention is not limited to
These embodiments.Without departing from the spirit and scope of the invention, can carry out structure add,
Omit, replace and other changes.The present invention is not limited to aforesaid explanation, its protection model
Enclose by the technical scheme described in claims to limit.
Claims (10)
1. alternating current is converted to DC current by a kind of supply unit, the supply unit, and which is special
Levy and be,
The supply unit possesses：
Power supply；
Cover, which can be formed as opening posture and closed posture, make when being formed as and opening posture
The inside for obtaining the supply unit is exposed, when closed posture is formed as by the supply unit
Portion is separated with outside；
1 sidepiece part, which is used to receive the alternating current；
Rectification circuit, which carries out rectification to the alternating current that 1 sidepiece part receives；
2 sidepiece parts, which will be supplied to load using the DC current after the rectifier circuit rectifies；
Detector unit, its open and-shut mode to the cover are detected；And
Control unit, its open and-shut mode according to the cover, to the alternating current to the load supply
Current value and for driving the control signal of the load to be controlled,
In the case where the cover is formed as opening posture, the current value is controlled by the control unit
It is the second current value more than 0, and the control signal is cut off.
2. supply unit according to claim 1, it is characterised in that
In the case where the cover is formed as closed position, the current value is controlled by the control unit
It is the first current value to the load supply,
Second current value is less than first current value.
3. supply unit according to claim 1 and 2, it is characterised in that
The presence or absence of opening and closing posture and failure based on the cover, judge whether to apply described second electric
Stream.
4. supply unit according to claim 3, it is characterised in that
In the case where time of the cover in unlatching posture is longer than stipulated time, the control unit
The current value is changed to below first current value from second current value, and higher than institute
State the value of the second current value.
5. supply unit according to claim 3, it is characterised in that
In the case where time of the cover in unlatching posture is longer than stipulated time, the control unit
The current value is changed to more than 0 from second current value, and less than second current value
Value.
6. supply unit according to claim 2, it is characterised in that
Time of the cover in posture is opened is detected in the detector unit longer than stipulated time
In the case of, the current value is set as 0 by the control unit.
7. the supply unit according to any one of claim 4 to 6, it is characterised in that
The stipulated time is set as by different values according to the content of failure.
8. supply unit according to any one of claim 1 to 7, it is characterised in that
The detector unit is arranged in the interlocking switch of 2 sidepiece parts,
There is between the interlocking switch and the load electrical storage device,
In the case where the cover is formed as opening posture, the control unit is controlled to the electric current
Value is to loading supply electric power.
9. supply unit according to claim 8, it is characterised in that
The control unit controls the current value according to the remaining capacity of the electrical storage device.
10. a kind of image processing system, which is used to image to be formed on paper,
Described image forms device and is characterised by possessing：
Power supply；
Cover, which can be formed as opening posture and closed posture, make when being formed as and opening posture
The inside for obtaining described image formation device is exposed, and forms described image when closed posture is formed as
The inside of device is separated with outside；
1 sidepiece part, which is used to receive the alternating current；
Rectification circuit, which carries out rectification to the alternating current that 1 sidepiece part receives；
2 sidepiece parts, which will be supplied to load using the DC current after the rectifier circuit rectifies；
Detector unit, its open and-shut mode to the cover are detected；And
Control unit, its open and-shut mode according to the cover, to the alternating current to the load supply
Current value and for driving the control signal of the load to be controlled,
In the case where the cover is formed as opening posture, the current value is controlled by the control unit
It is the second current value more than 0, and the control signal is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510589108.3A CN106547180B (en) | 2015-09-16 | 2015-09-16 | Power supply device and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510589108.3A CN106547180B (en) | 2015-09-16 | 2015-09-16 | Power supply device and image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106547180A true CN106547180A (en) | 2017-03-29 |
| CN106547180B CN106547180B (en) | 2019-02-19 |
Family
ID=58361438
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510589108.3A Expired - Fee Related CN106547180B (en) | 2015-09-16 | 2015-09-16 | Power supply device and image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106547180B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248526A (en) * | 1978-01-13 | 1981-02-03 | Konishiroku Photo Industry Co., Ltd. | Circuit for detecting door state in copying apparatus |
| JPS5928166A (en) * | 1982-08-09 | 1984-02-14 | Canon Inc | Safety device of copying machine |
| JP2005227520A (en) * | 2004-02-13 | 2005-08-25 | Ricoh Co Ltd | Image forming apparatus |
| US20060159482A1 (en) * | 2004-12-24 | 2006-07-20 | Norikazu Okada | Image forming apparatus and power supply control method |
-
2015
- 2015-09-16 CN CN201510589108.3A patent/CN106547180B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248526A (en) * | 1978-01-13 | 1981-02-03 | Konishiroku Photo Industry Co., Ltd. | Circuit for detecting door state in copying apparatus |
| JPS5928166A (en) * | 1982-08-09 | 1984-02-14 | Canon Inc | Safety device of copying machine |
| JP2005227520A (en) * | 2004-02-13 | 2005-08-25 | Ricoh Co Ltd | Image forming apparatus |
| US20060159482A1 (en) * | 2004-12-24 | 2006-07-20 | Norikazu Okada | Image forming apparatus and power supply control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106547180B (en) | 2019-02-19 |
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