CN1987668A - Drive device used in image forming device - Google Patents
Drive device used in image forming device Download PDFInfo
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- CN1987668A CN1987668A CN 200610160635 CN200610160635A CN1987668A CN 1987668 A CN1987668 A CN 1987668A CN 200610160635 CN200610160635 CN 200610160635 CN 200610160635 A CN200610160635 A CN 200610160635A CN 1987668 A CN1987668 A CN 1987668A
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Abstract
Drive device used in image forming device is disclosed, preventing the influence of the image caused by the asymmetry of rotative velocity of the reduction gear aroused by the elastic deformation of a planetary roller. The drive device comprises a planetary roller type power transmission unit and a drive control unit. The planetary roller type power transmission unit includes a plurality of planetary roller pressed in the outer circumambience of the revolving shaft of the electromotor, at least a part containing the elastomer; a ring connected with a plurality of planetary in the inside circumambience, comprising a projecting portion from the outer circumambience; a fixed body fixed in the form of covering ring, having an aperture formed in the positon relate to the projecting portion of the ring, the aperture having the width of the-projecting-portion-shifting prescribe distance; a carrier roller rotary-linked and rotary with planetary roller; and an output shaft outputing the rotary of the carrier roller to the exterior. The drive control unit controls the rotation of a motor of the drive device so that when the image forming device is not carrying out an image forming operation the projecting portion of the ring reciprocates within the aperture of the fixed body.
Description
Technical field
The present invention relates to the drive unit that uses in a kind of image processing system.
Background technology
Coloured image such as color printer or color copy machine forms device and has the rotating driving device that is used to rotate and drive photosensitive drums that each colour content uses or transfer belt etc.Rotating driving device comprises motor and reduces the reduction gear of the planetary mode of motor speed.
In recent years, be accompanied by the cost degradation that coloured image forms device, at least a portion of the planetary rollers in the reduction gear of planetary mode is to use the elastic body of rubber for example etc. to form always.Therefore elastomeric planetary rollers can produce elastic deformation owing to be crimped on the output shaft that transmits the motor rotation to the outside.The elastic deformation that is produced on the elastic body of planetary rollers causes the change of rotational speed of the output shaft of reduction gear.Even, on the image that is generated during the rotational speed change of the output shaft of reduction gear, may also color displacement or irregular colour etc. can appear.
In patent documentation 1, a kind of following rotating driving device being disclosed: when using elastic body on planetary rollers, by the rotational speed of direct control motor, thereby can make the rotational speed of output shaft even.Particularly, the drive unit of patent documentation 1 comprises stepping motor, elastic body reduction gear and feedback control unit.The elastic body reduction gear comprises the torque transport unit of carrying out transmission of torque by elastomeric rubbing contact, and does not comprise the torque transport unit by gear transmission, reduces the rotation of motor and outputs to photosensitive drums.Feedback control unit detects the output rotational speed of elastic body reduction gear, and obtains the difference value with target velocity, according to this difference value speed command signal is offered motor, thereby directly controls the rotational speed of motor.
Patent documentation 1: TOHKEMY 2002-171779
But, in the device of patent documentation 1, have following problem.
From stop motor rotating to once more drive during, in the moment of the elastic deformation that produces on the elastomeric planetary rollers after driving once more, can make the rotational speed of the output shaft of reduction gear produce inhomogeneous.When motor stopped, the response time during the inhomogeneous grade of rotational speed of the output shaft of the reduction gear that is caused by the elastic deformation that produces on planetary rollers during with the device FEEDBACK CONTROL of patent documentation 1 is compared, and was much bigger.Therefore, the output shaft rotational speed of the reduction gear that the elastic deformation that produces on planetary rollers when stopping as if the FEEDBACK CONTROL detection motor that relates to by the device by patent documentation 1 causes is inhomogeneous, and the rotational speed of control motor, then can produce overshoot.
Summary of the invention
Therefore, the invention provides a kind of drive unit, this drive unit can prevent the inhomogeneous and influence that image is brought of the rotational speed on the output shaft of the reduction gear that produced by the elastic deformation of planetary rollers.
The drive unit that first aspect present invention relates to is the drive unit that is used to drive the rotary body with image processing system, and this drive unit comprises planetary roller power transmission unit and drive control part.The planetary roller power transmission unit comprises a plurality of planetary rollers, ring, fixed body, bearing roller and output shaft.A plurality of planetary rollers are crimped on the outer peripheral face of motor rotation axis, and at least a portion comprises elastic body.Ring is connected with a plurality of planetary rollers at inner peripheral surface, and has from the outstanding teat of outer peripheral face.Fixed body is located in the mode of cover ring, and with the corresponding position of teat of ring on, form peristome with width that this teat can move in predetermined distance.Bearing roller is by the rotation interlock and the rotation of planetary rollers.Output shaft is exported the rotation of bearing roller to the outside.And when image processing system did not carry out image formation action, drive control part was controlled the rotation of motor in teat round mode in the peristome of fixed body of ring.
Do not carry out image at image processing system and form under the state of action, this drive unit makes motor carry out for example dead slow speed rotation in teat round mode in the peristome of fixed body of ring.So along with the dead slow speed rotation of this motor, planetary rollers is also carried out the dead slow speed rotation.At this moment, owing on fixed body, there is the gap, can be suppressed at the generation of the surface of contact upper planet roller wearing and tearing of planetary rollers and ring.And along with the teat of ring is travelled to and fro between action in the peristome of fixed body, planetary rollers comes and goes along the outer peripheral face of motor rotation axis.Therefore, even suppose that still, it is restored by extending, and can not produce elastic deformation in the elastic body part of planetary rollers because the rotation of motor temporarily stops to wait in the local elastic deformation that produces of the elastic body of planetary rollers.So the output shaft rotational speed on the drive unit is not subjected to the influence of elastic deformation and becomes stable.That therefore, can avoid being caused by the inhomogeneous grade of the rotational speed of output shaft produces phenomenons such as color displacement or irregular colour on image.
According to the drive unit that second aspect present invention relates to, in the drive unit that first aspect present invention relates to, between the first phase, drive control part is controlled the rotation of motor in teat round mode in the peristome of fixed body of ring.Be meant between this first phase from receive signal that presentation video forms release begin after to receive the next image of expression form move the signal that begins to indicate during.
According to this drive unit, owing to can avoid on the elastomeric fixed position of planetary rollers that contacts with the outer peripheral face of motor rotation axis, exerting pressure, so can prevent from the elastic body of planetary rollers, to produce elastic deformation.Therefore, form action even image processing system begins image, the rotational speed of the output shaft in this drive unit is still stable.So that can avoid being caused by the inhomogeneous grade of the rotational speed of output shaft produces phenomenons such as color displacement or irregular colour on image.
The drive unit that relates to according to third aspect present invention, in the drive unit that second aspect present invention relates to, in between the first phase, drive control part is in first specific time interval, so that the mode of bearing roller rotation predetermined angular is further controlled the rotation of motor.
This drive unit in first specific time interval so that bearing roller rotation for example the modes of 180 degree control the rotation of motor.So planetary rollers is to revolve round the sun in the center with the motor rotation axis with bearing roller, and be that rotation is carried out at the center with the turning axle of each planetary rollers.Thus, can change in the elastic body of planetary rollers, with the motor rotation axis position contacting.Therefore, when the motor dead slow speed is rotated, can prevent that established part on the elastic body of planetary rollers is owing to the outer peripheral face of travelling to and fro between motor rotation axis weares and teares.
The drive unit that relates to according to fourth aspect present invention, in the drive unit that second aspect present invention relates to, after the teat of ring touched the inwall of peristome of fixed body, drive control part was by further controlling the rotation of motor in the mode of the speed turning motor of regulation.
Because the teat of ring is positioned at the peristome of fixed body, so receive the situation that the signal that starts indication can not get started rotation even have motor.For example, in the peristome of teat at fixed body of ring movably under the situation of position, if motor start-up, then Huan teat only moves movably regional in the peristome of fixed body.Carry out the dead slow speed rotation at motor during this period.Therefore, even the teat of ring moves in the peristome of fixed body, this drive unit is still controlled the rotation of motor, makes motor with required speed rotation.Thus, even the teat of ring finishes to move in the peristome of fixed body and ring has also stopped rotation, still, bearing roller and planetary rollers still can continue rotation.Therefore, the influence that output shaft can avoid motor dead slow speed rotation to cause simultaneously, can be stablized the rotation of bearing roller and exports to the outside.
The drive unit that relates to according to fifth aspect present invention, in the drive unit that first aspect present invention relates to, after motor start-up to through the second phase till second stipulated time, drive control part is travelled to and fro between the rotation that mode in the peristome of fixed body is controlled motor with the teat of ring.
Motor stop during, the part that contacts in the part that the elastic body by planetary rollers forms, with motor rotation axis can produce elastic deformation.But according to this drive unit, part on the elastic body of planetary rollers, that elastic deformation takes place is owing to come and go at the outer peripheral face of motor rotation axis, so, can restore in the mode that stretches by motor rotation axis.Therefore, form action even image processing system begins image, the rotational speed of the output shaft of this device also is stable.That therefore, can avoid being caused by the inhomogeneous grade of the rotational speed of output shaft produces phenomenons such as color displacement or irregular colour on image.
The drive unit that relates to according to sixth aspect present invention in the drive unit that fifth aspect present invention relates to, also comprises the test section that is used to detect near the temperature planetary rollers or the above-mentioned planetary rollers.And drive control part comprises that the second stipulated time determination section, image form operation control part.The second stipulated time determination section is used for determining for second stipulated time according to the detected temperature of test section.Image forms operation control part and begins at least to make image processing system begin image again and to form action through after second stipulated time from motor start-up the time.
Be used to make the elastic deformation that on the elastomer portion of planetary rollers, produces to restore the temperature of needed time-dependent in the elastic body part of planetary rollers.Therefore, this drive unit is according to planetary rollers or near the temperature it, and the teat of decision ring is travelled to and fro between second stipulated time of the peristome of fixed body.Thus, even causing owing to the temperature of planetary rollers is different under the also different situation of time that elastic deformation is restored, remain and after elastic deformation is restored, begin image again and form and move.
The drive unit that relates to according to seventh aspect present invention, in the drive unit that aspect fifth aspect present invention or the 6th, relates to, drive control part is further controlled the rotation of motor, so that the planetary rollers part that planetary rollers contacts with the outer peripheral face of the turning axle of motor when the rotation with motor stops is to come and go in the width center, that stipulate on the motor rotation axis outer peripheral face.
When the rotation of motor stops, producing elastic deformation on the part that in the elastic body of planetary rollers, contacts with the turning axle of motor.So the mode that this drive unit contacts with the motor rotation with the part that produces elastic deformation on the elastic body of planetary rollers is controlled the rotation of motor.That is, in the time of in the teat of ring is travelled to and fro between the peristome of fixed body, planetary rollers is the center with the part that elastic deformation takes place in the elastic body of planetary rollers, travels to and fro between on the outer peripheral face of motor rotation axis.Thus, the part that elastic deformation takes place on the elastic body of planetary rollers is restored in the mode that stretches.Thus, the part that elastic deformation takes place on the elastic body of planetary rollers is restored.
According to the present invention, can prevent the inhomogeneous influence that image is caused of rotational speed of the output shaft of the reduction gear that causes by the elastic deformation of planetary rollers.
Description of drawings
Fig. 1 is the synoptic diagram that the cross-section structure of the drive unit that relates to of first embodiment is connected with its peripheral equipment;
Fig. 2 is the synoptic diagram of image processing system;
Fig. 3 is the sectional view of the drive unit of Fig. 1 along the III-III line;
Fig. 4 is the functional structure of drive control part of the drive unit that relates to of first embodiment and the synoptic diagram of each function portion of being connected with drive control part;
Fig. 5 is the sequential chart of the various signals that relate to of first embodiment;
The sequential chart of the various signals when Fig. 6 is the dead slow speed turning action of motor among Fig. 5;
Fig. 7 is the synoptic diagram that the section of the drive unit that relates to of second embodiment constitutes and is connected with this peripheral equipment;
Fig. 8 is the sectional view of the drive unit of Fig. 7 along III '-III ' line;
Fig. 9 is that the function of the drive control part of the drive unit that relates to of second embodiment constitutes and the synoptic diagram of each function portion of being connected with drive control part;
Figure 10 be decision during two-way time employed two-way time table; And
Figure 11 is the sequential chart of the various signals that relate to of second embodiment.
Embodiment
First embodiment
Fig. 1 is the cross-section structure of the drive unit that relates to of first embodiment and the synoptic diagram that is connected with its peripheral equipment; The drive unit 1 of Fig. 1 is connected with image processing system 21, drives the device for example be arranged at the photosensitive drums in the image processing system 21 and uses as rotation.Image processing system 21 is a kind of for example coloured image formation devices of color printer or color copy machine etc. that are used for.
Fig. 2 is the synoptic diagram of image processing system 21.Image processing system 21 be with four looks the photographic fixing visual image is not multiple be transferred on the recording medium after, so-called tandem type full-color image graphics device with its photographic fixing, and image forming part with (Y, M, C, B) of all kinds usefulness, wherein, the image forming part of (Y, M, C, B) of all kinds usefulness comprises along photosensitive drums 22 of medium transport path configurations etc.Drive unit 1 and each photosensitive drums 22 corresponding setting are so that can drive each photosensitive drums 22 respectively.
(1) structure of drive unit
Fig. 3 is the sectional view along the III-III line of the drive unit of Fig. 1.Below, use Fig. 1 and Fig. 3 that the structure of drive unit 1 is described.
The drive unit 1 of first embodiment comprises motor 2, motor rotation axis 3, a plurality of planetary rollers 4, ring 6, bearing roller 7, output shaft 8, fixed body 9 and drive control part 10.
(2) action of planetary roller power transmission unit and motor rotation axis
Below, utilize Fig. 3 that the action of planetary roller power transmission unit and motor rotation axis is described.
At first, motor rotation axis 3 is along the sense of rotation rotation of motor 2.So three planetary rollers 4 are the center with motor rotation axis 3, revolve round the sun to the direction identical with motor rotation axis 3 sense of rotation along the inner peripheral surface that encircles 6.And each planetary rollers 4 is the center with the turning axle of separately planetary rollers 4, carries out rotation to the direction opposite with motor rotation axis 3 sense of rotation.Bearing roller 7 rotates with the revolution interlock of planetary rollers 4.That is, bearing roller 7 is rotated to the direction identical with motor rotation axis 3 sense of rotation.At this moment, bearing roller 7 with the rotational speed of motor rotation axis 3 by planetary rollers 4 certainly then the speed that reduces be rotated.
(3) structure of drive control part
Below, utilize the functional structure of the drive control part 10 that Fig. 4 relates to present embodiment to describe.Drive control part 10 comprises timer 11, pattern control part 12, motor driving control section 13, motor sense of rotation control part 14, motor rotational speed control part 15 and position judgment portion 16.
Timer 11 is used for output time information.When pattern control part 12, motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15 generate signal, use the time information of timer 11.
Pattern control part 12 is used to control the rotary mode of motor 2.Image processing system 21 do not carry out image form action during in, especially between the first phase in the A, pattern control part 12 is controlled, so that motor 2 carries out two kinds of different spinning movements.Wherein, A is meant after the image of the image formation release that receives presentation video formation device 21 forms indicator signal, represents that to receiving from the outside image that begins to indicate that next image formation is moved forms indicator signal between the first phase.At this,, enumerated for example image processing system 21 as sending " outside " that image forms the transmitting terminal of indicator signal.Comprise in the rotary mode: first pattern makes motor 2 rotations in the mode of encircling in the peristome 9a that 6 teat 6a travels to and fro between fixed body 9; And second pattern, so that the mode of bearing roller 7 rotation predetermined angulars makes motor 2 rotations.
Motor driving control section 13 is used to carry out the drive controlling of motor 2.Particularly, motor driving control section 13 is a benchmark with the time information from timer 11 outputs, generates direct motor drive control signal MOT_DR, and exports to motor 2, wherein, this direct motor drive control signal MOT_DR is used to control connection and the disconnection that motor 2 drives.
Motor sense of rotation control part 14 is a benchmark with the time information from timer 11 outputs, generate motor sense of rotation control signal MOT_DIR, and export to motor 2, wherein, this motor sense of rotation control signal MOT_DIR is used to indicate the sense of rotation of motor 2.Particularly, between the first phase among the A, the sense of rotation of motor sense of rotation control part 14 control motor 2 comes and goes in the peristome 9a of fixed body 9 so that encircle 6 teat 6a.And motor sense of rotation control part 14 is after the image that begins to indicate that receives presentation video formation action forms indicator signal, and generation is used to make motor 2 to the motor sense of rotation control signal MOT_DIR that is rotated in the forward, and exports to motor 2.
Motor rotational speed control part 15 is a benchmark with the time information from timer 11 outputs, generate motor rotational speed control signal MOT_FCLK, and export to motor 2, wherein, this motor rotational speed control signal MOT_FCLK is used to indicate the rotational speed of motor 2.Particularly, A between the first phase, the rotational speed of motor rotational speed control part 15 control motor 2 moves in the peristome 9a of fixed body 9 with dead slow speed so that encircle 6 teat 6a.And motor rotational speed control part 15 generates the motor rotational speed control signal MOT_FCLK that motor 2 is stablized rotation, and exports to motor 2 after the image that begins to indicate that receives presentation video formation action forms indicator signal.
Obtain the image that begins the to indicate formation indicator signal of presentation video formation action when drive control part 10 after, it is where interior that position judgment portion 16 judges that teat 6a is currently located at peristome 9a, and the result after will judging exports to motor rotational speed control part 15.More particularly, 16 monitoring motor rotational speed control signal MOT_FCLK and the motor sense of rotation control signal MOT_DIR of position judgment portion.And, when drive control part 10 obtains the image that begins the to indicate formation indicator signal of presentation video formation action, the position of the teat 6a in the peristome 9a is judged according to the motor rotational speed control signal MOT_FCLK and the motor sense of rotation control signal MOT_DIR of output before this by position judgment portion 16.
(4) action of each function in the drive control part
Fig. 5 is the sequential chart of the action of expression drive control part 10.Fig. 6 is the sequential chart after A between the first phase among Fig. 5 is amplified.Below, utilize Fig. 5 and Fig. 6 that the action of each function in the drive control part 10 is described.At this, it is that a kind of presentation video forms the signal whether device 21 is carrying out image formation action that the image of Fig. 5 forms actuating signal, is carrying out being expressed as " 1 " when image forms action, is expressed as when not carrying out " 0 ".For direct motor drive control signal MOT_DR, motor stops with " 0 " expression, and direct motor drive is represented with " 1 ".For motor sense of rotation control signal MOT_DIR, the rotation of the clockwise direction of the motor rotation axis 3 among Fig. 3 is counterclockwise rotated with " 0 " expression with " 1 " expression.
(4-1) first pattern
At first, when drive control part 10 receives the image formation indicator signal of indicating image formation release from for example image processing system 21, the pattern control part 12 of drive control part 10 adopts from the time information of timer 11 outputs, the timing of the time of beginning after the image that receives presentation video formation release forms indicator signal.When the effluxion time T 1 of timing, pattern control part 12 will represent that first pattern that first pattern begins to indicate begins indicator signal and exports to motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15.At this, so-called first pattern begins indicator signal and is meant the signal that is used to control motor 2, and motor 2 is rotated with first pattern.In the present embodiment, for example time T 1 was made as 1 second.
Motor driving control section 13 is when obtaining first pattern from pattern control part 12 and begin indicator signal, and the direct motor drive control signal MOT_DR that first pattern is used exports to motor 2.Particularly, in first pattern, motor driving control section 13 is exported the pulse with specified period and predetermined pulse width periodically.And, in the present embodiment, when only making motor 2 rotations, motor driving control section 13 carries out the driving of motor 2.First pattern is that image processing system 21 does not carry out the state that image forms action, and promptly drive unit 1 waits for that image forms the state that begins to indicate of action.Therefore,, have only when motor 2 dead slow speeds are rotated, just motor driving control section 13 is for connecting in order to reduce motor 2 overall power.
When motor sense of rotation control part 14 began indicator signal from pattern control part 12 acquisitions first pattern, the motor sense of rotation control signal MOT_DIR that first pattern is used exported to motor 2.Particularly, in first pattern, motor sense of rotation control part 14 is exported the pulse that has during specified period and the regulation High periodically.Motor sense of rotation control part 14 repeats this action.At this, Shu Chu umber of pulse is determined by following factor periodically: for example, be formed at fixed body 9 peristome 9a width and ring 6 teat 6a in peristome 9a, come and go during the rotational speed of motor 2.In the present embodiment, for example, peristome 9a has the width of about 30dge according to the anglec of rotation of motor rotation axis 3, and, teat 6a back and forth in peristome 9a during the rotational speed of motor 2 when being " 0.2rpm ", setting the recurrence interval is " 90.9msec ", and umber of pulse is " 200 ".
Motor rotational speed control part 15 is when obtaining first pattern from pattern control part 12 and begin indicator signal, and the motor rotational speed control signal MOT_FCLK that first pattern is used exports to motor 2.Particularly, motor rotational speed control part 15 export periodically have during specified period and the regulation High, the fixedly pulse of rotational speed of expression.In the present embodiment, when for example making motor 2 rotations with the speed of " 0.2rpm ", the cycle of setting motor rotational speed control signal MOT_FCLK is " 90.9msec ", is " 2msec " (duty: 2.2%) during the High of motor rotational speed control signal MOT_FCLK.
As mentioned above, when making motor 2 rotations with first pattern, each signal period that motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15 send is identical.
As mentioned above, during first pattern, motor 2 is according to each signal that sends from motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15, to reaching dead slow speed rotation counterclockwise clockwise.So the teat 6a of ring 6 travels to and fro between in the peristome 9a of fixed body 9, and planetary rollers 4 comes and goes along the Rack on motor rotation axis 3 outer peripheral faces.Thus, the fixed position of the elastic body 4a of the planetary rollers 4 that contacts with motor rotation axis 3 outer peripheral faces is not exerted pressure.
(4-2) second pattern
Pattern control part 12 is according to the time information from timer 11 outputs, measures exporting the time that first pattern begins after the indicator signal.Effluxion time T 2 when (being equivalent to for first stipulated time) when metering begins indicator signal with second pattern and exports to motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15.At this, so-called second pattern begins indicator signal and is meant the signal that is used to control motor 2, so that motor 2 rotates with second pattern.In the present embodiment, time T 2 was made as 15 fens.
When motor driving control section 13 began indicator signal from pattern control part 12 acquisitions second pattern, the direct motor drive control signal MOT_DR that second pattern is used exported to motor 2.Particularly, in second pattern, motor driving control section 13 output motor drive control signal MOT_DR.
Motor sense of rotation control part 14 is when obtaining second pattern from pattern control part 12 and begin indicator signal, and the motor sense of rotation control signal MOT_DIR that second pattern is used exports to motor 2.Particularly, in second pattern, in order to make motor 2 to the fixed-direction rotation, after second pattern of acquisition began indicator signal, motor 2 was exported in the pulse of the pulse width together of the pulsion phase in the time of will having with first pattern immediately.In the present embodiment, 14 outputs of motor sense of rotation control part are used to make motor 2 to right handed pulse.
Motor rotational speed control part 15 is when obtaining second pattern from pattern control part 12 and begin indicator signal, and the motor rotational speed control signal MOT_FCLK that second pattern is used exports to motor 2.Particularly, in second pattern, in order to make motor 2 with fixing speed dead slow speed rotation, the signal of the rotational speed that the rotational speed when motor rotational speed control part 15 continues the output expression with first pattern is identical.
Pattern control part 12 is according to the time information from timer 11 outputs, measures exporting the time that second pattern begins after the indicator signal.When the effluxion bearing roller 7 that is measured rotated the time T 3 of predetermined angulars, pattern control part 12 began indicator signal with first pattern and flows to motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15.At this, time T 3 is determined by " predetermined angular " that bearing roller 7 rotates.For example, when bearing roller 7 Rotate 180s were spent, if the reduction gear ratio of motor rotation axis 3 and output shaft 8 is " 8: 1 ", then motor 2 needed rotation 1440 degree, promptly rotates four circles.Time T 3 in this case is motor 2 four needed times of circle of rotational speed rotation with 15 controls of motor rotational speed control part.
As mentioned above, in second pattern, motor 2 rotates to the fixed-direction dead slow speed according to each signal that sends from motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15.So, ring 6 teat 6a when in the peristome 9a inwall that touches fixed body 9 be positioned at inwall on the sense of rotation after stop, but thereafter, planetary rollers 4 is to revolve round the sun on the outer peripheral face of motor rotation axis 3 in the center with motor rotation axis 3 still, and is that rotation is carried out at the center with the turning axle of each planetary rollers 4.Bearing roller 7 is by rotating the angle of regulation with the revolution interlock of planetary rollers 4.Thus, the place that contacts with motor rotation axis 3 among the elastic body 4a of planetary rollers 4 changes.
Pattern control part 12, motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15 are recycled and reused for and make the control of motor 2 with first pattern or the rotation of second pattern till the image that begins to indicate that receives presentation video formation action forms indicator signal.
(4-3) stablize rotary mode
When drive control part 10 receives the image that begins the to indicate formation indicator signal of presentation video formation action from the outside, the pattern control part 12 of drive control part 10 will be used for the Spin Control of switching motor 2 and export to motor driving control section 13, motor sense of rotation control part 14 and motor rotational speed control part 15 for the signal of stablizing rotary mode.Stable rotary mode is the pattern of motor 2 stable rotations.So motor driving control section 13 is exported to motor 2 with the direct motor drive control signal MOT_DR of " 1 ".Also fast stabilized speed made motor 2 export to motor 2 to the signal of a certain direction rotation when motor sense of rotation control part 14 and motor rotational speed control part 15 formed the signal that begins to indicate that moves to receive image than wait.
At this, when motor 2 began stable rotation, the position of the teat 6a of the ring 6 in the peristome 9a of fixed body 9 was corresponding and different with the moment that begins to indicate that drive control part 10 receives image formation action.Promptly, when motor 2 begins stable rotation, under the situation of the inwall of sense of rotation in the inwall in ring 6 teat 6a does not touch the peristome 9a of fixed body 9, motor rotation axis 3, after motor 2 had just begun stable rotation, teat 6a moved to this inwall in peristome 9a.In peristome 9a, move and the contact inwall up to teat 6a, because the load of contact portion is little between the elastic body 4a of planetary rollers 4 and the ring 6, so the rotation of motor 2 dead slow speeds.Here, when making motor 2 stable rotations, motor rotational speed control part 15 absorbs the dead slow speed rotation of motor 2, and the such motor rotational speed control signal MOT_FCLK of motor 2 stable rotations is exported to motor 2.Particularly, receive the image that begins the to indicate formation indicator signal of presentation video formation action when drive control part 10 after, position judgment portion 16 in the drive control part 10, before being about to reception, motor rotational speed control signal MOT_FCLK and motor direction control signal MOT_DIR according to motor sense of rotation control part 14 and 15 outputs of motor rotational speed control part, judge the position of teat 6a among the peristome 9a, and export to motor rotational speed control part 15.Motor rotational speed control part 15 is according to the positional information of the teat 6a that receives from position judgment portion 16, at first, the motor rotational speed control signal MOT_FCLK that will be used for teat 6a is contacted with the inwall of sense of rotation peristome 9a inwall, motor rotation axis 3 exports to motor 2, then, will be used to make the motor rotational speed control signal MOT_FCLK of motor 2 stable rotations to export to motor 2 again.Thus, touch the inwall of peristome 9a and encircle 6 rotation up to teat 6a and stop, motor 2 is all with the dead slow speed rotation, thereafter, and until stablizing rotation status.Then, when the rotation of motor 2 becomes when stablizing rotation status, image processing system 21 carries out image and forms action (it is " 1 " that image forms actuating signal).
(5) effect
The drive unit 1 that present embodiment relates to rotates motor 2 in the mode of encircling in the peristome 9a that 6 teat 6a travels to and fro between fixed body 9 between the first phase in the A slowly.Thus, planetary rollers 4 is also carried out the dead slow speed rotation.Therefore, can avoid being exerted pressure in the fixed position of the elastic body 4a of the planetary rollers 4 that contacts with motor rotation axis 3 outer peripheral faces, therefore, can prevent from the elastic body 4a of planetary rollers 4, elastic deformation to take place.So, even image processing system 21 beginning images form action, because the rotational speed of the output shaft on the drive unit 1 is fixed, therefore, can avoid causing phenomenons such as generation color displacement or irregular colour on image owing to the rotational speed inequality of output shaft.And, when making motor 2 and planetary rollers 4 dead slow speeds when rotation, owing on fixed body 9, have the gap, so can be suppressed at the wearing and tearing that planetary rollers 4 takes place on the surface of contact of planetary rollers 4 and ring 6.
And then when elapsed time T2, drive unit 1 is so that the mode of bearing roller 7 rotation predetermined angulars is controlled the rotation of motor 2.At this moment because planetary rollers 4 also rotate, so can change on the elastic body 4a of planetary rollers 4, and motor rotation axis 3 position contacting.Therefore, during motor 2 dead slow speeds rotations, can prevent that the established part on the elastic body 4a of planetary rollers 4 from travelling to and fro between the outer peripheral face of motor rotation axis 3 and causing wearing and tearing.
Second embodiment
Fig. 7 is the cross-section structure of the drive unit 101 that relates to of second embodiment and the synoptic diagram that is connected with its peripheral equipment.The drive unit 101 of Fig. 7 is connected with image processing system 121, and uses as being used to drive the device that is arranged at the photosensitive drums in the image processing system 121.In addition, identical with first embodiment, image processing system 121 be a kind of in for example color printer or color copy machine etc. employed coloured image form device because its structure is identical with the image processing system 21 of first embodiment, so omission is to its explanation.
(1) structure of drive unit
Fig. 8 is the sectional view of the drive unit 101 of Fig. 7 along III '-III ' line.Below, the structure of utilizing Fig. 7 and Fig. 8 to drive unit 101 is described.
The drive unit 101 of second embodiment also comprises rotation speed sensor 105a and temperature sensor 105b (being equivalent to detecting unit) on the basis of the structure of the drive unit 1 that first embodiment relates to.That is, drive unit 101 comprises motor 102, motor rotation axis 103, a plurality of planetary rollers 104, rotation speed sensor 105a, temperature sensor 105b, ring 106, bearing roller 107, output shaft 108, fixed body 109 and drive control part 110.
Promptly, motor rotation axis 103 is to the rotation of outside output motor 102.A plurality of planetary rollers 104 are at the outer peripheral face that is crimped on motor rotation axis 103 and encircle under the state between 106 the inner peripheral surface and locate, and its edge portion is formed by elastic body 104a such as rubber or resins.In addition, identical with first embodiment in the present embodiment, be that three situation is an example with planetary rollers 104.Rotation speed sensor 105a is positioned at the inner peripheral surface of fixed body 109, is used to detect the rotational speed of bearing roller 107.Temperature sensor 105b is in the outside of motor 102 and fixed body 109, and be arranged on fixed body 109 near, be used to detect the temperature T e of planetary roller power transmission unit integral body described later.Ring 106 to be being provided with around the mode of three planetary rollers 104, and is connected at inner peripheral surface with each planetary rollers 104.And ring 106 has outstanding teat 106a at outer peripheral face.See over from planetary rollers 104, bearing roller 107 is positioned at a side opposite with motor 102, and is connected with planetary rollers 104 by the turning axle 104b of planetary rollers 104.And bearing roller 107 is connected with output shaft 108 by the bearing 108a that is positioned at fixed body 109 parts.The edge portion of bearing roller 107 is formed by magnet 107a.On the axle center identical with motor rotation axis 103, output shaft 108 is to the rotation of outside output bearing roller 107.Fixed body 109 is positioned at the outside of motor 102, and around motor rotation axis 103, three planetary rollers 104, rotation speed sensor 105a, ring 106 and bearing rollers 107.And on fixed body 109, on the position relative with the teat 106a of ring 106, formation has can make teat 106a move the peristome 109a of the width of predetermined distance.Below, planetary rollers 104, ring 106, bearing roller 107, output shaft 108 and fixed body 109 are generically and collectively referred to as " planetary roller power transmission unit ".
In addition, for the action of this planetary roller power transmission unit and motor rotation axis 103, since identical with first embodiment " action of (2) planetary roller power transmission unit and motor rotation axis ", so omit to its explanation.
Drive control part 110 is positioned at the outside of motor 102 and fixed body 109, and is connected with motor 102, temperature sensor 105b and image processing system 121.
(2) formation of drive control part
Below, utilize the functional structure of the drive control part 110 that Fig. 9 relates to present embodiment to describe.Drive control part 110 comprises that timer 111, dead slow speed rotational time determination section 112 (being equivalent to the second stipulated time determination section), motor driving control section 113, motor sense of rotation control part 114, motor rotational speed control part 115 and image form operation control part 116.
When drive control part 110 receives the image that is used to make image to form the action beginning when forming indicator signal from for example image processing system 121 external units such as grade, dead slow speed rotational time determination section 112 temperature T e according to planetary roller power transmission unit integral body, the teat 106a of decision ring 106 travels to and fro between Ts two-way time (being equivalent to for second stipulated time) of the peristome 109a of fixed body 109, wherein, the temperature T e of this planetary roller power transmission unit integral body comprises the temperature of temperature sensor 105b elastic body 104a that detected, planetary rollers 104.Then, dead slow speed rotational time determination section 112 with two-way time Ts export to motor sense of rotation control part 114 and motor rotational speed control part 115.And, the order of dead slow speed rotational time determination section 112 based on the time of the time of temperature T e decision Ts two-way time and motor driving control section 113 driving motors 102 had no particular limits.Any before can.
Below, determine the example of Ts two-way time to describe to dead slow speed rotational time determination section 112.Hypothesis driven control part 110 comprises not shown storage part.Storage portion stores be used to determine as shown in figure 10 two-way time Ts table two-way time.Two-way time of Figure 10 table with temperature range and two-way time Ts condition formula as a recording storage.The condition formula of Ts was meant and was used to determine that two-way time, Ts restored the condition of needed time more than or equal to the elastic deformation that is produced on the elastic body 104a of planetary rollers 104 when motor stops so-called two-way time.For example, with temperature range " 0≤Te＜20 " be used to determine condition " Ts=10+ (20-Te)/2.89 " corresponding stored of Ts two-way time.At this, " 2.89 " be meant with Fig. 7 and Fig. 8 in not shown employed photographic fixing material category value corresponding in fixing device.And two-way time, the condition formula of Ts also can be set according to spring rate of the elastic body 104a of planetary rollers 104 etc.This is because elastic body 104a also can change to some extent according to its spring rate of difference of material category etc.
And dead slow speed rotational time determination section 112 judges in a plurality of temperature ranges of the detected temperature T e of temperature sensor 105b in showing the two-way time of Figure 10 to meet which scope.Then, Ts two-way time of the temperature range that dead slow speed rotational time determination section 112 decision is fit to corresponding to temperature T e, and output it to motor sense of rotation control part 114 and motor rotational speed control part 115.
Motor driving control section 113 is used to carry out the drive controlling of motor 102.For example, motor driving control section 113 generates direct motor drive control signal MOT_DR according to the time information from timer 111 outputs, and export to motor 102, wherein, this direct motor drive control signal MOT_DR is used to control the connection and the disconnection of the driving of motor 102.
Motor sense of rotation control part 114 generates motor sense of rotation control signal MOT_DIR, and exports to motor 102, and wherein, this motor sense of rotation control signal MOT_DIR is used to indicate the sense of rotation of motor 102.Particularly, motor sense of rotation control part 114 is when receiving two-way time from dead slow speed rotational time determination section 112 during Ts, with the time information from timer 111 outputs is benchmark, the image that begins to indicate that receives the action of presentation video figure from the outside forms the moment of indicator signal, the mensuration of beginning Ts two-way time.And, during till effluxion Ts two-way time that measures (being equivalent to second phase B), motor sense of rotation control part 114 is exported to motor 102 in each stipulated time with motor sense of rotation control signal MOT_DIR, travels to and fro between in the peristome 109a of fixed body 109 so that encircle 106 teat 106a.
And behind process Ts two-way time, motor sense of rotation control part 114 generates and is used to make motor 102 to the motor sense of rotation control signal MOT_DIR that is rotated in the forward, and exports to motor 2.
Motor rotational speed control part 115 generates the motor rotational speed control signal MOT_FCLK of the rotational speed that is used to indicate motor 102, and exports to motor 102.Particularly, motor rotational speed control part 115 is when receiving two-way time from dead slow speed rotational time determination section 112 during Ts, with the time information from timer 111 outputs is benchmark, the image that begins to indicate that receives the action of presentation video figure from the outside forms the moment of indicator signal, the mensuration of beginning Ts two-way time.And, during till passing through Ts two-way time up to this minute, motor rotational speed control part 115 is exported to motor 102 and image graphics operation control part 116 in each stipulated time with motor rotational speed control signal MOT_FCLK, moves so that encircle teat 106a dead slow speed in the peristome 109a of fixed body 109 of 106.
And behind process Ts two-way time, motor rotational speed control part 115 generates the motor rotational speed control signal MOT_FCLK that motor 102 are stablized rotation, and exports to motor 102 and image graphics operation control part 116.
Image forms operation control part 116 generation images formation action control signals, and sends to image processing system 121, and wherein, this image formation action control signal is used for carrying out and the image formation of finishing control image processing system 121 is moved.Particularly, image forms operation control part 116 monitoring motor rotational speed control signal MOT_FCLK, and after this signal became specified signal, control image processing system 121 made it begin image and forms action.At this, form action as image, comprise that the image of for example color registration processing or calibration process etc. forms treatment for correcting.
(3) action of each function in the drive control part
Figure 11 is the sequential chart of the action of expression drive control part 110.At this, form the action control signal for image, image is formed action " 1 " expression, finishes with " 0 " expression.For direct motor drive control signal MOT_DR, motor is stopped to represent with " 1 " with " 0 " expression, direct motor drive.For motor sense of rotation control signal MOT_DIR, the rotation of the clockwise direction of the motor rotation axis 103 among Fig. 8 is rotated with " 0 " expression with " 1 " expression, counter clockwise direction.
At first, when drive control part 110 forms indicator signal when the image that begins to indicate that receives presentation video formation action from the outside, the motor driving control section 113 of drive control part 110 switches to " 1 " with direct motor drive control signal MOT_DR from " 0 ", and exports to motor 102.At this, " outside " of drive control part 110 is meant for example image processing system 121.
Motor sense of rotation control part 114 rises and obtains two-way time during Ts from dead slow speed rotational time determination section 112 as direct motor drive control signal MOT_DR, and MOT_DIR exports to motor 102 with motor sense of rotation control signal.Particularly, motor sense of rotation control part 114 is exported the pulse that has during specified period and the regulation High periodically.By in two-way time of dead slow speed rotational time determination section 112 decision is during the Ts, motor sense of rotation control part 114 repeats this action.At this, Shu Chu umber of pulse is determined by following factor periodically: be formed at fixed body 109 peristome 109a width and encircle 106 teat 106a travel to and fro between in the peristome 109a during the rotational speed of motor 102.In the present embodiment, for example, peristome 109a has the width of about 30dge according to the anglec of rotation of motor rotation axis 103, when the rotational speed of the motor 102 during in teat 106a travels to and fro between peristome 109a is " 0.2rpm ", setting the recurrence interval is " 90.9msec ", and umber of pulse is " 200 ".
Motor rotational speed control part 115 rises and obtains two-way time during Ts from dead slow speed rotational time determination section 112 as direct motor drive control signal MOT_DR, and MOT_FCLK exports to motor 102 with motor rotational speed control signal.Particularly, by dead slow speed rotational time determination section 112 decision two-way time Ts during in, motor rotational speed control part 115 export periodically have during specified period and the regulation High, represent the fixedly pulse of rotational speed.In the present embodiment, for example when the speed with " 0.2rpm " makes motor 102 rotations, the cycle of motor rotational speed control signal MOT_FCLK is set at " 90.9msec ", is set at " 2msec " (duty: 2.2%) during the High of motor rotational speed control signal MOT_FCLK.
As mentioned above, two-way time Ts during (promptly, during the second phase B), motor 102 reaches dead slow speed rotation counterclockwise along clockwise direction according to each signal that sends from motor sense of rotation control part 114 and motor rotational speed control part 115.So, the teat 106a of ring 106 comes and goes in the peristome 109a of fixed body 109, and, the part that planetary rollers 4 still contacts with motor rotation axis 103 outer peripheral faces with planetary rollers 104 when the rotation of motor 102 stops is the center, comes and goes in the width of the regulation on motor rotation axis 103 outer peripheral faces.Thus, when the rotation of motor 102 stopped, the part of the generation elastic deformation on the elastic body 104a of planetary rollers 104 was restored in the mode that stretches.
When through two-way time during Ts, motor sense of rotation control part 114 and motor rotational speed control part 115 are used to make motor 102 with the signal of the stabilized speed before during coming and going time T s to a certain direction rotation to motor 102 outputs.Thus, motor 102 will be rotated with sense of rotation and the speed based on motor sense of rotation control signal MOT_DIR and motor rotational speed control signal MOT_FCLK, until stablizing rotation status.
Motor rotational speed control signal MOT_FCLK during comprising Ts two-way time is between amphibolia, and image forms operation control part 116 image formation action control signal " 0 " is sent to image processing system 121.When motor rotational speed control signal MOT_FCLK is stable, promptly motor 102 is for after stablize rotation status, and image forms operation control part 116 and image is formed moves control signal " 1 " and send to image processing system 121.So image processing system 121 receives this signal and begins image and forms action.
(4) effect
The drive unit 101 that relates to according to second embodiment, the part of elastic deformation takes place when motor 102 stops among the elastic body 104a of planetary rollers 104, since when motor 102 starts, begin two-way time Ts during travel to and fro between the outer peripheral face of motor rotation axis 103, so, can restore in the mode that stretches by motor rotation axis 103.Therefore, even image processing system 121 beginning images form action, the rotational speed of the output shaft 108 of drive unit 101 is still fixing, therefore, can avoid producing phenomenons such as color displacement or irregular colour owing to what the inhomogeneous grade of the rotational speed of output shaft 108 caused on image.And, when the part of generation elastic deformation is travelled to and fro between the outer peripheral face of motor rotation axis 103 among the elastic body 104a of planetary rollers 104, when motor 102 stops, because gapped on fixed body 109, so can suppress the generation of the planetary rollers 104 and the wearing and tearing of the surface of contact upper planet roller 104 of ring 106.
And drive unit 101 determines Ts two-way time according to the temperature T e of the planetary roller power transmission unit integral body of the temperature that comprises elastic body 104a in the planetary rollers 104.Thus, because the temperature difference of the elastic body 104a of planetary rollers 104, so the time that elastic deformation is restored is also different, even in this case, drive unit 101 also can begin image processing system 121 again after elastic deformation is restored image forms action.
Other embodiment
(a) in above-mentioned first embodiment, time, time T 1 till will beginning to begin to travel to and fro between in the peristome 9a of fixed body 9 to ring 6 teat 6a when image forms release are made as " 1sec ", but, also can be that back and forth movement will begin in a minute after teat 6a received the image that begins the to indicate formation indicator signal of presentation video formation action at drive control part 10.
(b) in above-mentioned second embodiment, drive unit 101 is comprised the situation of temperature sensor 105b and dead slow speed rotational time determination section 112 is described, but also can not comprise these.In this case, with two-way time Ts be set at the time that is predetermined.That is, in two-way time that is predetermined during the Ts, motor sense of rotation control part 114 in the drive control part 110 and motor rotational speed control part 115 carry out the control of motor 102 in the mode that teat 106a comes and goes in peristome 109a.
(c) in the second above-mentioned embodiment, in drive unit 101, be provided with temperature sensor 105b, still, also can be arranged in the image processing system 121 of Fig. 7, be used for the temperature that detected image forms device 121 integral body.When temperature sensor 105b is set in the drive unit 101, the number of a drive unit 101 that need on each photosensitive drums, be provided with, still, when being arranged at image processing system 121 integral body, only one of needs are just passable.Therefore, reduced cost.
(d) in above-mentioned second embodiment, determine the example of Ts two-way time to describe to dead slow speed rotational time determination section 112 bases table two-way time as shown in figure 10.But, be not limited in this.Dead slow speed rotational time determination section 112 also can not considered the scope of temperature and decide Ts two-way time according to the formula of decidable two-way time.
(e) in above-mentioned second embodiment, the situation of image formation operation control part 116 monitoring from the MOT_FCLK of motor rotational speed control part 115 outputs is illustrated.But, be not limited in this.Image forms operation control part 116 also can monitor the rotational speed that rotation speed sensor 105a detects.
(f) in above-mentioned first and second embodiment, the situation that teat 6a is come and gone during A between the first phase or second phase B is illustrated respectively.But teat also can come and go action during A between the first phase and second phase B arbitrary.In this case, can planetary rollers not stop and continuing to move.Therefore, elastic deformation can not take place just can realize the present invention on the elastic body of planetary rollers.Therefore, can further reach the effect that first embodiment relates to.
Utilizability on the industry
Drive unit of the present invention can be used as the colours such as color printer or color copy machine Image processing system and using.
Claims (7)
1. a drive unit that is used to drive the rotary body that image processing system has comprises planetary roller power transmission unit and drive control part, it is characterized in that:
Described planetary roller power transmission unit comprises:
A plurality of planetary rollers are crimped on the outer peripheral face of the turning axle of motor, and at least a portion comprises elastic body;
Ring is connected with described a plurality of planetary rollers at inner peripheral surface, and has from the outstanding teat of outer peripheral face;
Fixed body is located in the mode that covers described ring, on the position corresponding with the teat of described ring, forms the peristome of the width with the removable predetermined distance of described teat;
Bearing roller is with the rotation interlock and the rotation of described planetary rollers; And output shaft, the rotation of exporting described bearing roller to the outside,
When described drive control part does not carry out image formation action at described image processing system, control the rotation of described motor in teat round mode in the peristome of described fixed body of described ring.
2. drive unit according to claim 1 is characterized in that,
Described drive control part is between the first phase, control the rotation of described motor in teat round mode in the peristome of described fixed body of described ring, wherein, be meant between the described first phase from receive the described image of expression form after the signal of release to receive the next image of expression form the signal that begins to indicate that moves during.
3. drive unit according to claim 2 is characterized in that,
Described drive control part between the described first phase in, with the further rotation of the described motor of control of mode that in first specific time interval, makes described bearing roller rotation predetermined angular.
4. drive unit according to claim 2 is characterized in that,
Touch the inwall of peristome of described fixed body when the teat of described ring after, the mode further rotation of control described motor of described drive control part by rotate described motor with the speed of regulation.
5. drive unit according to claim 1 is characterized in that,
After described motor start-up, to through the second phase till second stipulated time, the mode that described drive control part comes and goes in the peristome of described fixed body with the teat of described ring is controlled the rotation of described motor.
6. drive unit according to claim 5 is characterized in that,
The test section that also comprises near the temperature that is used to detect described planetary rollers or described planetary rollers,
Described drive control part comprises:
The second stipulated time determination section according to the detected temperature of described test section, determines described second stipulated time; And
Image forms operation control part, during from described motor start-up, pass through described second stipulated time at least after, make described image processing system begin described image and form action.
7. according to claim 5 or 6 described drive units, it is characterized in that,
Described drive control part is the rotation of the described motor of control further, so that the described planetary rollers part that described planetary rollers contacts with the outer peripheral face of the turning axle of described motor when the rotation with described motor stops is to come and go in the width of stipulating on the motor rotation axis outer peripheral face center, described.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005368480A JP4864448B2 (en) | 2005-12-21 | 2005-12-21 | Driving device used in image forming apparatus |
| JP2005368480 | 2005-12-21 | ||
| JP2005368482 | 2005-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1987668A true CN1987668A (en) | 2007-06-27 |
| CN100472343C CN100472343C (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101606353A Expired - Fee Related CN100472343C (en) | 2005-12-21 | 2006-11-29 | Drive device used in image forming device |
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| Country | Link |
|---|---|
| JP (1) | JP4864448B2 (en) |
| CN (1) | CN100472343C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061285A (en) * | 2014-06-23 | 2014-09-24 | 句容利威尔电器有限公司 | 3D (Three-Dimensional) printer |
| CN110081727A (en) * | 2019-05-28 | 2019-08-02 | 山西八达镁业有限公司 | A kind of reverse-flow star roller heat exchanger high temperature sludge afterheat utilizing system and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4943036B2 (en) * | 2006-03-29 | 2012-05-30 | 京セラミタ株式会社 | Driving device used in image forming apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS57130042A (en) * | 1981-02-05 | 1982-08-12 | Ricoh Co Ltd | Original plate for lithography of dry electrophotography |
| JPH01166161A (en) * | 1987-12-22 | 1989-06-30 | Fujitsu Ltd | Mutual monitoring system for multiprocessor system |
| JPH04140769A (en) * | 1990-10-01 | 1992-05-14 | Canon Inc | Image forming device |
| JP2593258B2 (en) * | 1991-08-21 | 1997-03-26 | ブリヂストンサイクル株式会社 | Bicycle hub generator |
| JP3396269B2 (en) * | 1993-09-27 | 2003-04-14 | 株式会社リコー | Image forming device |
| JP2000257625A (en) * | 1999-03-10 | 2000-09-19 | Minolta Co Ltd | Rotor driving gear and image forming device using this rotor driving gear |
| JP2001051554A (en) * | 1999-08-06 | 2001-02-23 | Konica Corp | Image forming device |
| JP4271345B2 (en) * | 2000-06-06 | 2009-06-03 | ナブテスコ株式会社 | Traction drive type drive unit |
| JP2002115751A (en) * | 2000-10-06 | 2002-04-19 | Nidec-Shimpo Corp | Rotation driving device and motive power transmission device |
| JP4324353B2 (en) * | 2002-08-29 | 2009-09-02 | 株式会社リコー | Transmission and image forming apparatus |
| JP4403686B2 (en) * | 2002-09-09 | 2010-01-27 | 富士ゼロックス株式会社 | Image forming apparatus |
-
2005
- 2005-12-21 JP JP2005368480A patent/JP4864448B2/en not_active Expired - Fee Related
-
2006
- 2006-11-29 CN CNB2006101606353A patent/CN100472343C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061285A (en) * | 2014-06-23 | 2014-09-24 | 句容利威尔电器有限公司 | 3D (Three-Dimensional) printer |
| CN110081727A (en) * | 2019-05-28 | 2019-08-02 | 山西八达镁业有限公司 | A kind of reverse-flow star roller heat exchanger high temperature sludge afterheat utilizing system and method |
| CN110081727B (en) * | 2019-05-28 | 2024-03-05 | 山西八达镁业有限公司 | System and method for utilizing high-temperature slag waste heat of counter-flow star-shaped roller heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4864448B2 (en) | 2012-02-01 |
| JP2007171511A (en) | 2007-07-05 |
| CN100472343C (en) | 2009-03-25 |
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