CN100458587C - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

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Publication number
CN100458587C
CN100458587C CNB2007100031512A CN200710003151A CN100458587C CN 100458587 C CN100458587 C CN 100458587C CN B2007100031512 A CNB2007100031512 A CN B2007100031512A CN 200710003151 A CN200710003151 A CN 200710003151A CN 100458587 C CN100458587 C CN 100458587C
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CN
China
Prior art keywords
brush roll
charged roller
gear
processing system
image processing
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Expired - Fee Related
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CNB2007100031512A
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Chinese (zh)
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CN101017347A (en
Inventor
宫地信希
丸山佳彦
新浩史
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Kyocera Document Solutions Inc
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Kyocera Mita Corp
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Publication of CN101017347A publication Critical patent/CN101017347A/en
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Abstract

An image forming apparatus is provided with a rotary image bearing member; a charging roller for charging the outer circumferential surface of the image bearing member by rotating in contact with the image bearing member; a brush roller for cleaning adhered matters on the outer circumferential surface of the charging roller by being held in contact with the charging roller due to its own weight and rotating; a driving mechanism for drivingly rotating the brush roller to have a linear velocity difference to the charging roller; and a moving mechanism for reciprocating the brush roller along the longitudinal direction thereof. Thus the image forming apparatus is designed to prolong the life of the cleaning performance of a brush roller and capable of suppressing the formation of jitter images.

Description

Image processing system
Technical field
The image processing systems such as compounding machine that the present invention relates to printer, duplicating machine, facsimile recorder and have these functions in the lump.
Background technology
At present, known image processing system comprises: charged roller, rotate synchronously with photosensitive drums, and make the surface charging of photosensitive drums; And electro-mechanical part, having directly over cardinal principle and be connected on the charged roller, cleaning is attached to the brush roll of the toner on the charged roller etc., and wherein, described brush roll is connected on the charged roller because of deadweight, is driven in charged roller and rotates.(for example opening the 2005-4065 communique) with reference to the spy.
But such image processing system rotates because brush roll is driven in charged roller, a little less than the cleaning power, can not reach the serviceable life of hundreds of thousands Zhang Shuiping.Therefore, in order to strengthen cleaning power, consider to take to increase the method for brush roll weight.But, because this method adheres on the charged roller material beyond the toner,, and cause the rotation instability of charged roller so chargeding performance reduces, be easy to generate the problem of beat pattern picture (lines of Print direction).
Summary of the invention
The purpose of this invention is to provide a kind of image processing system, can realize the long lifetime of brush roll clean-up performance, and can suppress the generation of beat pattern picture.
For reaching this purpose, image processing system provided by the invention comprises: the image carrier of rotation; The surface charging of described image carrier is rotated and made to charged roller with described image carrier butt; Brush roll because of deadweight is connected on the described charged roller, rotates and cleans the attachment on described charged roller surface; Driving mechanism drives and rotates described brush roll, makes this brush roll and described charged roller produce linear differential; And travel mechanism, described brush roll is axially moved back and forth along it.
According to the present invention, compare with image processing system in the past, can provide life-span of brush roll clean-up performance long and further can suppress the image processing system of the generation of beat pattern picture.
Description of drawings
Fig. 1 is the concise and to the point sectional drawing that is used to illustrate the printer structure of embodiment of the present invention.
Fig. 2 is the sketch of charged roller and brush roll, and wherein, Fig. 2 (a) is a side view, and Fig. 2 (b) is a front elevation, and Fig. 2 (c) is the side view that the bristle of expression brush roll is swung to direction.
Fig. 3 is the stereographic map of first assembled state of charged roller and brush roll.
Fig. 4 is the stereographic map of second assembled state of charged roller and brush roll.
Fig. 5 is the stereographic map of the 3rd assembled state of charged roller and brush roll.
Fig. 6 is the enlarged drawing of the right side part of Fig. 3.
Fig. 7 is the enlarged drawing of the left part of Fig. 3.
Fig. 8 is the enlarged drawing that is assembled with the gear state in Fig. 6.
Fig. 9 is a stereographic map of seeing Fig. 7 from circular plate type cam one side.
Figure 10 is the front elevation of Fig. 9.
Figure 11 is the stereographic map that is assembled with the installation component state in Fig. 9.
Figure 12 represents the circular plate type cam, wherein, and the stereographic map of Figure 12 (a) for seeing, the stereographic map of Figure 12 (b) for seeing from the opposite side direction from a side direction.
Figure 13 represents outer cover component, wherein, and the stereographic map of Figure 13 (a) for seeing, the stereographic map of Figure 13 (b) for seeing from the opposite side direction from a side direction.
Embodiment
Below, be described in detail being used to implement best mode of the present invention with reference to accompanying drawing.
Fig. 1 is the concise and to the point sectional drawing of the printer 1 of one of image processing system example of embodiment of the present invention.In addition, the invention is not restricted to printer, also go for other image processing system such as duplicating machine, facsimile recorder and compounding machine.
Printer 1 is to transport in the way of paper along transporting passage L, according to the view data that sends from terminal etc., forms the image processing system of image on paper.Printer 1 has in apparatus main body 2 inside of box-shaped: image forming part 4 when after forming the toner picture on the surface of photosensitive drums 3, looks like to be transferred to this toner on the paper; Sheet feed section 5 offers image forming part 4 with paper; And photographic fixing portion 6, with toner as photographic fixing on paper.
Transport passage L and have the horizontal part L1 that extends along left and right directions in the drawings; And the vertical component effect L2 that vertically erects substantially from the left part of horizontal part L1.
Sheet feed section 5 has the paper feeding cassette 10 that is configured in the horizontal part L1 below of transporting passage L.Be contained in the paper in the paper feeding cassette 10, take out by pickup roller 12a, this paper more than is delivered to the horizontal part L1 that transports passage L by paper feed roller 12b~12e.In addition, after paper is transported to and transports passage L, to the temporary transient standby of 12f, offer image forming part 4 at official hour by alignment roller.
Image forming part 4 has: photosensitive drums 3 (example of image carrier) is configured in the cardinal principle central authorities of the horizontal part L1 that transports passage L; Electro-mechanical part 13 is configured in the top of photosensitive drums 3; Development section 14 is configured in the right-hand of photosensitive drums 3; Transfer printing portion 15 is configured in the below of photosensitive drums 3; Cleaning section 16 is configured in the left of photosensitive drums 3; And laser scan unit (LSU) 17, be configured in the top of electro-mechanical part 13, cleaning section 16 and photographic fixing portion 6.
Photosensitive drums 3 moves in the direction of the clock in Fig. 1.After making the surperficial uniform charged of photosensitive drums 3 by electro-mechanical part 13, laser scan unit 17 from irradiating laser between electro-mechanical part 13 and the development section 14, forms electrostatic latent image according to view data.By from development section 14 Gong Give toners, on the surface that forms electrostatic latent image, form the toner picture again.
By the transfer roll 15a of transfer printing portion 15, will from paper that described sheet feed section 5 provide by be pressed in photosensitive drums 3 on one side transport on one side, and the toner picture that will on the surface of photosensitive drums 3, form, be transferred on this surface (transfer surface).Afterwards, paper is admitted to photographic fixing portion 6.In addition, by remaining in photosensitive drums 3 lip-deep toner and residual charges after the cleaning section 16 removal transfer printings.
Photographic fixing portion 6 has hot-rolling 6a and pressure roll 6b.By being obtained heat and pressure by these rollers 6a, 6b clamping, be transferred to toner picture on the paper by photographic fixing to paper.When the toner picture by photographic fixing after on the paper, this paper is discharged to the discharge portion 19 that forms on apparatus main body 2 by distributing roller 18.
In the printer 1 of present embodiment, between horizontal part L1 that transports passage L and paper feeding cassette 10, be provided with the portion of going back to 20, so just can form image on the two sides of paper.In addition, on the sidewall of apparatus main body 2, be provided with manual paper supply unit 21.
In addition, the toner container of also having represented to replenish toner with development section 14 with to its 23 is installed in the example in the printer 1 in the mode of the developing cell 25 that is made of one.Developing cell 25 can be come in and gone out from vergence direction with respect to the discrepancy opening 2a above the apparatus main body 2.That is, developing cell 25 can " advance " in the direction charging apparatus main body 2 from the arrow under being tilted to, and can " go out " direction from apparatus main body 2 taking-ups along the arrow that is tilted to.
As Fig. 2 (a)~2 (c) institute schematic representation, electro-mechanical part 13 comprises: charged roller 26, rotate synchronously with photosensitive drums 3, and make the surface charging of photosensitive drums 3; And brush roll 27, directly over almost, being connected on this charged roller 26, cleaning is attached to attachments such as charged roller 26 lip-deep toners.Brush roll 27 is made by the polyamide fibre of for example electric conductivity.
The right side enlarged drawing of and Fig. 3 represented that is the left side enlarged drawing of Fig. 6 and Fig. 3 that is Fig. 7 institute as Fig. 3 in detail expression like that, two ends axial region 26a, the 27a of charged roller 26 and brush roll 27 are respectively with bearing components 28 supports.Bearing components 28 has: axis hole 28a, can support the two ends axial region 26a of charged roller 26 rotationally; And major axis hole 28b, the two ends axial region 27a that supports brush roll 27 can rotate, moves up and down and move back and forth vertically (with reference to the arrow a of Fig. 2 (b)).
Each bearing components 28 presses downwards by spring 29.By each bearing components 28, charged roller 26 utilizes the throw-on pressure of spring 29 to be connected on the photosensitive drums 3.The two ends axial region 27a of brush roll 27 is by the major axis hole 28b guiding of each bearing components 28, and brush roll 27 is connected on the charged roller 26 because of deadweight.
As shown in Figure 8, on an axial region 27a of brush roll 27, be provided with can with the brush roll 27 gear part 27b of unitary rotation (first gear) with one heart, by the idling gear 41 (second gear) of independent setting, with gear part 3a (the 3rd gear) engagement of photosensitive drums 3.
Specifically, on an axial region 27a of brush roll 27, carriage 43 is installed, allows an axial region 27a to rotate, and limit this axial region 27a and move vertically.Idling gear 41 is supported on this carriage 43, and by carriage 43, the engagement of the gear part 27b of brush roll 27 and idling gear 41 remains necessarily.
By the throw-on pressure of spring 29, charged roller 26 is connected on the photosensitive drums 3, and charged roller 26 is rotated synchronously with photosensitive drums 3.In addition, the gear part 3a of the gear part 27b of brush roll 27 and photosensitive drums 3, the idling gear 41 by independent setting meshes, and brush roll 27 also rotates with the state-driven that is connected on the charged roller 26 because of deadweight.
The depth of engagement between the idling gear 41 that moves up and down with brush roll 27 by carriage 43 and the gear part 3a of photosensitive drums 3 can absorb the amount of moving up and down of brush roll 27.That is, the amount of moving up and down of brush roll 27 is within the depth of engagement of idling gear 41 and gear part 3a.In addition, the amount of moving up and down of the two ends axial region 27a of the major axis hole 28b restriction brush roll 27 by utilizing bearing components 28 is adjusted the engagement of the gear part 3a of idling gear 41 and photosensitive drums 3, does not mesh dark or shallow excessively.By carriage 43, use the engagement width between the gear part 3a of the idling gear 41 that moves back and forth with brush roll 27 and photosensitive drums 3, can absorb the axial amount of moving back and forth of brush roll 27.That is, the axial amount of moving back and forth of brush roll 27 is within the engagement width of idling gear 41 and gear part 3a.
Like this, though brush roll 27 within the limits prescribed along the vertical direction or axial direction move, select the depth of engagement and the width of idling gear 41 and gear part 3a, also can keep the engagement of idling gear 41 and gear part 3a.
In addition,, can drive brush roll 27 and rotate, produce linear differential with respect to charged roller 26 by changing the number of teeth of gear part 27b and idling gear 41.Linear differential no matter quicken (just) side still slow down (bear) side can, on cleaning efficiency, a negative side is superior, in the present embodiment, is set at and bears 15%.
Preferably, the filament number of the brush of brush roll 27 was at 1~10 fen Tekes (dtex or T), and density is at 150~300kF/inch 2(1kF/inch 2Be 1000 pieces/square inch) scope.In addition preferably, leave charged roller 26 farthest the time at brush roll 27, the brush amount of nipping is below 0.1mm.
In addition, as Fig. 2 (c) institute schematic representation, the direction A of the bristle of brush roll 27 direction of swinging to preferably for rotating along charged roller 26.
On the other hand, as the detailed expression of Fig. 9 and Figure 10 institute, on another axial region 27a of brush roll 27, be provided with and make the circular plate type cam 30 of plectane face with respect to the axial direction inclination of brush roll 27.As Figure 12 institute in detail expression like that, setting integratedly has the boss portion 30b of slotted eye 30a on this circular plate type cam 30, is used for cooperating with the oval 27c of portion (with reference to Fig. 9) of another axial region 27a of brush roll 27, and it can not freely be rotated.Circular plate type cam 30 is by plectane portion is tiltedly formed with respect to the axle right angle orientation Shao Pour of boss portion 30b.
In addition, in the bottom of circular plate type cam 30, be covered with the outer cover component 31 of end square box shape.As Figure 13 institute represents in detail, in outer cover component 31, form the embedding recess 31a that separates certain interval with circular plate type cam 30, and near the bottom of this recess 31a, be formed with a pair of projection 31b, from the part of the outer circumference portion of axial sandwich circular plate type cam 30.
As shown in Figure 4, the two ends axial region 26a of charged roller 26 and brush roll 27, the bearing components 28 of 27a, the 32A of two ends box-shaped portion, the 32B by the casing component 32 of charged roller 26 supports respectively.With reference to Figure 11, outer cover component 31 is with the inside of the case shape 32B of portion that can not be supported on casing component 32 vertically movably.
Therefore, rotate in case drive brush roll 27, then the circular plate type cam 30 of brush roll 27 drives brush roll 27 to-and-fro movement axially by a pair of projection 31b guiding of outer cover component 31.
As Fig. 5 institute in detail the expression, on the 32A of two ends box-shaped portion, the 32B of the casing component 32 of charged roller 26, installation component 33A, 33B are installed, this installation component 33A, 33B are installed on the framework of apparatus main body 2.
According to described formation, in the electro-mechanical part 13 of image forming part 4, because brush roll 27 is connected on the charged roller 26 by deadweight, so pass through the major axis hole 28b of bearing components 28, brush roll 27 can move along the axle right angle orientation along the periphery of charged roller 26, distance between adjustable axle.Therefore, on brush roll 27, can select the high brush of density, cleaning effect is improved.
In addition, owing to making brush roll 27 drive rotation to produce linear differential, so cleaning power strengthens with respect to charged roller 26.In this case, not to make brush roll 27 driven rotations, rotate and be to use gear part 27b to drive, brush roll 27 is not gained in weight.Therefore, do not worry having toner material in addition to adhere on the charged roller 26, so chargeding performance is difficult to reduce.In addition, the slow-roll stabilization of charged roller 26 can suppress to produce the beat pattern picture.
In addition, owing to make brush roll 27 move back and forth (with reference to the arrow a of Fig. 2 (b)) vertically, can automatically fill up the space (in other words, the space becomes not to be had fully) of brush density, institute is so that the cleaning effect raising.
Be expressed as follows the experimental result of several types in table 1: the type of present embodiment drives the type that brush roll 27 moves up and down, moves back and forth; And compare with it: Class1, brush roll 27 driven rotations also move up and down, move back and forth; Type 2 drives brush roll 27 and moves up and down (it is moved back and forth); And type 3, drive brush roll 27 and move back and forth (it is moved up and down).In addition, symbol zero expression does not produce good situations such as beat pattern picture.
Table 1
Present embodiment Class1 Type 2 Type 3
The state of brush roll Driving moves up and down and moves back and forth Driven moving up and down moves back and forth Driving moves up and down Driving moves back and forth
The initial stage image The generation portrait of beating
300,000 Nai Shi Yan of a specified duration Knot fruits It is bad to produce image to 60,000 It is bad to produce image to 120,000 The generation portrait of beating
As shown in table 1, type 3 has just produced the beat pattern picture from the initial stage image.In addition, Class1, when reaching 60,000, seen because of on charged roller 26, adhere to foreign material condensation product Zao Cheng the point the image bad phenomenon.Type 2 when reaching 120,000, has seen that being piled into stripe-shaped because of foreign material on charged roller 26 causes striped to blur the image bad phenomenon of (beat pattern picture).And in the type of present embodiment, even to 300,000, also do not see producing the beat pattern picture.
In table 2, be expressed as follows the experimental result of several types: the type 6 of the type 5 of the type 4 of the type of the present embodiment of the brush amount of the nipping t=0.10mm of brush roll 27, the brush amount of the nipping t=0.05 of brush roll 27, the brush amount of the nipping t=0.15 of brush roll 27 and the brush amount of the nipping t=0.20 of brush roll 27.In addition, symbol zero expression does not produce good situations such as beat pattern picture.In addition, symbol ◎ represents well, △ represent still can, * expression does not allow.
Table 2
Type 4 Present embodiment Type 5 Type 6
t=0.05 t=0.10 t=0.15 t=0.20
Initial stage beats ×
Spatter property ×
As shown in Table 2, the 4 not generation initial stages of type beat (beating of initial stage image), but spatter property is bad.Type 5 produces some initial stages slightly and beats, but spatter property is good.6 initial stages of type beat and reach unallowed degree, but spatter property is better.And in the type of present embodiment, the not generation initial stage beats, and spatter property is also good.
On the other hand, as the mechanism that brush roll 27 is moved back and forth vertically, because circular plate type cam 30 and outer cover component 31 only are set, thus simple in structure, and it is moved back and forth reliably.
In addition, be set in 1~10dtex by the filament number with the brush of brush roll 27, density is set in 150~300kF/inch 2Scope, the possibility that the material beyond the toner adheres on the charged roller 26 is very little, so chargeding performance is difficult to reduce.
In addition, owing to set the direction that the bristle of brush roll 27 is swung to, therefore increased the butt area with charged roller 26, further can suppress the generation of beat pattern picture along the rotation direction A of charged roller 26.
More than, embodiments of the present invention are illustrated, but the present invention is not limited thereto, can also take following distortion embodiment.
What exemplify (1) in said embodiment, is with the example of photosensitive drums 3 as image carrier.Can also replace and adopt banded image carrier.
(2) in said embodiment, exemplify be brush roll 27 be configured in charged roller 26 almost directly over example.Can also replace the position that brush roll 27 is configured in the oblique upper of charged roller 26.
What exemplify (3) in said embodiment, is the example that is come the linear differential of brush roll 27 and charged roller 26 by the number of teeth difference band of gear.This is a preferred mode under the situation of the drive force brush roll 27 that utilizes photosensitive drums 3, but can also replace with independent drive source driving brush roll 27, and the drive controlling linear velocity that makes brush roll 27 and charged roller 26 is different.
What exemplify (4) in said embodiment, is to adopt the example of circular plate type cam as the travel mechanism that brush roll 27 is moved back and forth vertically.This is an example, can also adopt for example crank mechanism or Vib. etc., and brush roll 27 is moved vertically.
In addition, in described embodiment, mainly comprise following invention:
Image processing system provided by the invention comprises: the image carrier of rotation; The surface charging of described image carrier is rotated and made to charged roller with described image carrier butt; Brush roll because of deadweight is connected on the described charged roller, rotates and cleans the attachment on described charged roller surface; Driving mechanism drives described brush roll and rotates, and makes this brush roll and described charged roller produce linear differential; And travel mechanism, described brush roll is axially moved back and forth along it.
According to this formation, because brush roll 27 is connected on the charged roller because of deadweight, brush roll can move (distance between adjustable axle) along the axle right angle orientation along the periphery of charged roller.Therefore, can select the high brush of density, cleaning effect is improved.
In addition, produce the rotation of linear differential ground owing to drive brush roll with respect to charged roller, so cleaning power strengthens.In this case, not to make the driven rotation of brush roll, rotate but drive, brush roll is not gained in weight, so, not having toner material in addition and adhere on the charged roller, chargeding performance is difficult to reduce.In addition, because of the slow-roll stabilization of charged roller, can suppress to produce the beat pattern picture.
In addition, because brush roll is moved back and forth vertically,, cleaning effect is improved so can automatically fill up the space (in other words, the space becomes not to be had fully) of brush density.
In described formation, preferably, also comprise: bearing components, support described brush roll; And axial region, be arranged on the two ends of described brush roll, described brush roll be configured in described charged roller almost directly over, on described bearing components, have long along the vertical direction major axis hole, support described axial region and can rotate, move up and down and move back and forth vertically.
According to this formation, brush roll is moved up and down simple and reliablely and moving back and forth vertically.
In described formation, preferably, described driving mechanism comprises: first gear, with a concentric end that is installed in this brush roll, the axle center of described brush roll; And second gear, rotate synchronously with described charged roller, and with described first gearing mesh, the number of teeth is different with described first gear.
According to this formation, utilize the number of teeth difference of gear, can drive brush roll, make itself and described charged roller produce linear differential.
In this case, preferably, image carrier is the photosensitive drums of rotating around its axle center, and this image carrier comprises and concentric the 3rd gear that is installed in one end thereof in its axle center, described charged roller and described photosensitive drums are rotated synchronously, described the 3rd gear and described second gearing mesh.
According to this formation, charged roller is rotated with identical linear velocity with photosensitive drums.On the other hand, utilize the drive force brush roll of photosensitive drums, but because first gear is different with the number of teeth of second gear, brush roll rotates with the linear velocity different with charged roller.Therefore, do not need the drive source of setting in addition, adopt simple formation just can make two rollers produce linear differential.
In addition, in this case, preferably, described second gear moves with described brush roll, and the moving range of described brush roll is within described second gear and described the 3rd gear meshing degree of depth and the engagement width.
According to this formation, no matter how brush roll moves, and can both stably pass to brush roll to driving force.
In described formation, preferably, described travel mechanism comprises: the circular plate type cam, be arranged on an end of described brush roll, and the plectane face of this circular plate type cam tilts with respect to the axial direction of this brush roll; Outer cover component has from the projection of the part of the described circular plate type cam of the axial sandwich outer circumference portion of described brush roll; And supporting member, support described outer cover component, do not allow this outer cover component moving axially along described brush roll.
According to this formation, as the mechanism that brush roll is moved back and forth vertically, because circular plate type cam and outer cover component only are set, thus simple in structure, and brush roll is moved back and forth reliably.
In described formation, preferably, the filament number of the brush of described brush roll is at 1~10dtex, and density is at 150~300kF/inch 2Scope.
According to this formation, the filament number and the density of the brush by making brush roll are described scope, because the possibility that the material beyond the toner adheres on the charged roller is very little, so chargeding performance is difficult to reduce.
In described formation, the direction that the bristle of preferred described brush roll is swung to is the direction of rotating along described charged roller.
According to this formation, owing to increased the butt area of brush and charged roller, so more can suppress the generation of beat pattern picture.

Claims (8)

1. image processing system is characterized in that comprising:
The image carrier that rotates;
The surface charging of described image carrier is rotated and made to charged roller with described image carrier butt;
Brush roll because of deadweight is connected on the described charged roller, rotates and cleans the attachment on described charged roller surface;
Driving mechanism drives and rotates described brush roll, makes this brush roll and described charged roller produce linear differential; And
Travel mechanism makes described brush roll axially move back and forth along it.
2. image processing system according to claim 1 is characterized in that also comprising:
Bearing components supports described brush roll; And
Axial region is arranged on the two ends of described brush roll,
Wherein, described brush roll be configured in described charged roller almost directly over,
Also have long along the vertical direction major axis hole on the described bearing components, support described axial region and can rotate, move up and down and move back and forth vertically.
3. image processing system according to claim 1 is characterized in that, described driving mechanism comprises:
First gear is with a concentric end that is installed in this brush roll, the axle center of described brush roll; And
Second gear rotates synchronously with described charged roller, and with described first gearing mesh, the number of teeth is different with described first gear.
4. image processing system according to claim 3 is characterized in that,
Image carrier is the photosensitive drums of rotating around its axle center, and this image carrier comprises and concentric the 3rd gear that is installed in one end thereof in its axle center,
Described charged roller and described photosensitive drums are rotated synchronously,
Described the 3rd gear and described second gearing mesh.
5. image processing system according to claim 4 is characterized in that,
Described second gear moves with described brush roll,
The moving range of described brush roll is within described second gear and described the 3rd gear meshing degree of depth and the engagement width.
6. image processing system according to claim 1 is characterized in that, described travel mechanism comprises:
The circular plate type cam is arranged on an end of described brush roll, and the plectane face of this circular plate type cam tilts with respect to the axial direction of this brush roll;
Outer cover component has from the projection of the part of the described circular plate type cam of the axial sandwich outer circumference portion of described brush roll; And
Supporting member supports described outer cover component, does not allow its moving axially along described brush roll.
7. image processing system according to claim 1 is characterized in that the filament number of the brush of described brush roll is at 1~10dtex, and density is at 150~300kF/inch 2Scope.
8. image processing system according to claim 1 is characterized in that, the direction that the bristle of described brush roll is swung to is the direction of rotating along described charged roller.
CNB2007100031512A 2006-02-10 2007-02-07 Image forming apparatus Expired - Fee Related CN100458587C (en)

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Application Number Priority Date Filing Date Title
JP2006034272 2006-02-10
JP2006034272 2006-02-10
JP2006120144 2006-04-25

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI596002B (en) * 2013-12-13 2017-08-21 三緯國際立體列印科技股份有限公司 Three dimensional printing apparatus
JP6582479B2 (en) * 2015-03-23 2019-10-02 富士ゼロックス株式会社 Charging device and image forming apparatus using the same
CN115301596B (en) * 2022-07-15 2024-05-31 山东中烟工业有限责任公司 Rubbing drum differential rotation cleaning device for YJ212 assembling machine

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JPH07199604A (en) * 1993-12-27 1995-08-04 Fuji Xerox Co Ltd Cleaning device for electrostatic charging roller
JPH0822173A (en) * 1994-07-07 1996-01-23 Ricoh Co Ltd Image forming device
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