CN101216693B - Cleaning apparatus, and transfer unit and image forming apparatus including the same - Google Patents
Cleaning apparatus, and transfer unit and image forming apparatus including the same Download PDFInfo
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- CN101216693B CN101216693B CN2007101814454A CN200710181445A CN101216693B CN 101216693 B CN101216693 B CN 101216693B CN 2007101814454 A CN2007101814454 A CN 2007101814454A CN 200710181445 A CN200710181445 A CN 200710181445A CN 101216693 B CN101216693 B CN 101216693B
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- China
- Prior art keywords
- scraper arm
- cleaning doctor
- pin joint
- strap
- medium
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- Expired - Fee Related
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- 238000004140 cleaning Methods 0.000 title claims abstract description 128
- 238000012546 transfer Methods 0.000 title claims abstract description 21
- 238000010023 transfer printing Methods 0.000 claims description 30
- 238000003384 imaging method Methods 0.000 claims description 24
- 238000007790 scraping Methods 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims 1
- 238000013461 design Methods 0.000 description 35
- 238000005452 bending Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- KJFBVJALEQWJBS-XUXIUFHCSA-N maribavir Chemical compound CC(C)NC1=NC2=CC(Cl)=C(Cl)C=C2N1[C@H]1O[C@@H](CO)[C@H](O)[C@@H]1O KJFBVJALEQWJBS-XUXIUFHCSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0011—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0105—Details of unit
- G03G15/0131—Details of unit for transferring a pattern to a second base
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/1605—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support
- G03G15/161—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support with means for handling the intermediate support, e.g. heating, cleaning, coating with a transfer agent
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0088—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge removing liquid developer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
A transfer unit of an image forming apparatus includes a belt to receive an image developed on a photosensitive medium while rotating in a regular cycle and in contact with an outer circumference of at least one photosensitive medium. A blade arm, which is installed adjacent to the belt, moves to a first position to position a cleaning blade, which is supported by the blade arm, to be in contact with the belt. The cleaning blade is coupled to a pressure unit to bias the cleaning blade towards the belt.
Description
Technical field
The total design of the present invention relates to imaging device.More particularly, the total design of the present invention relates to cleaning device with the improvement structure that is used to remove the toner that remains on the offset medium and transfer printing unit and the imaging device that comprises this cleaning device.
Background technology
Usually, adopt imaging device that electrofax handles for example laser beam printer or duplicating machine utilize toner development to be formed on the electrostatic latent image on the light-sensitive medium and developed image be transferred on the print media by transfer printing unit, with output expection image.
Transfer printing unit comprises the strap-like member that is installed between at least two rollers and rotates according to specified period.This strap-like member is set to contact with the periphery of at least one light-sensitive medium, thus, the image that is developed on this light-sensitive medium is transferred on the strap-like member.
The strap-like member cleaning device is removed the unnecessary toner that remains on this strap-like member at the image that is transferred at first on the strap-like member after secondary transfer printing is to paper, thus, keep this strap-like member to be in clean conditions.
Fig. 1 is the diagrammatic sketch that schematically shows common strap-like member cleaning device.As shown in Figure 1, strap-like member 1 is wound on the roller 2 and according to specified period and rotates.In addition, being installed in the front end of the cleaning doctor of scraping on the knife support 43 contacts with strap-like member 1 on being wound on roller 2.Thus, utilize cleaning doctor 3 to remove the toner that remains on the strap-like member 1.
Scrape knife support 4 and be configured to move to the primary importance and the second place, so that cleaning doctor 3 can optionally contact with strap-like member 1 via the cam (not shown).Primary importance is cleaning doctor 3 and strap-like member 1 position contacting, and as shown in Figure 1, and second place (not shown) is the position that this cleaning doctor 3 separates with this strap-like member 1.
Toner image on being formed on light-sensitive medium is transferred on the strap-like member 1 or the toner image of this strap-like member 1 when being transferred on the print media, scrapes knife support 4 and is positioned at the second place by making, and cleaning doctor 3 separates with this strap-like member 1.In addition, when transfer process is finished, scrape knife support 4 and move to primary importance, cleaning doctor 3 is contacted with strap-like member 1 to remove on it not toner of transfer printing via cam.
Yet, in aforesaid common strap-like member cleaning device, because cam is by applying bigger power and make 1 contact of cleaning doctor 3 and strap-like member or separating, so the front end of this cleaning doctor 3 is damaged or these cleaning doctor 3 bendings.If cleaning doctor 3 damages or be crooked, it just can not clean the toner that remains on the strap-like member again.In the case, need to change or the maintenance cleaning doctor.
Summary of the invention
The total design of the present invention provides a kind of like this cleaning device, and it prevents that by the improvement contact structures between cleaning doctor and the offset medium this cleaning doctor from damaging and upset.
The total design of the present invention also provides transfer printing unit and the imaging device that comprises this cleaning device, wherein, via two stations (station) cleaning doctor is contacted preventing that this cleaning doctor from damaging with offset medium, thereby improve the durability of this cleaning doctor and make this cleaning doctor miniaturization by increased design freedom.
The others of the design that the present invention is total and purposes will partly be set forth in the following description, and partly will obviously or by putting into practice the total design of the present invention recognize from this explanation.
Aforementioned and/or the others of the design that the present invention is total and purposes realize that by a kind of like this cleaning device is provided this cleaning device comprises: scraper arm is installed near offset medium, to move to the primary importance and the second place; Cleaning doctor is supported by scraper arm, to contact with offset medium when this scraper arm moves to primary importance; And presser unit, be used for the cleaning doctor bias voltage to offset medium.
Scraper arm can pivot around first pin joint (hinge point), and also comprises and be used to rotate and move the driving cam of this scraper arm to the first and second position.
Cleaning doctor is installed on the scraper arm to pivot around second pin joint.
Presser unit comprises: scrape knife support, be installed between first and second pin joint; And spring, between the support at the first pin joint place and scrape between the knife support.
Aforementioned and/or the others and the purposes of the design that the present invention is total realize by the transfer printing unit that a kind of like this imaging device is provided, this transfer printing unit comprises: offset medium, be used to receive the image that is developed on the light-sensitive medium, rotate in contact with specified period and with the periphery of light-sensitive medium simultaneously; Transfer roll is used for the image that is transferred on the offset medium is transferred to print media; And aforesaid cleaning device, be used to remove and be not transferred on the print media and remain in toner on the offset medium.
Aforementioned and/or the others of the design that the present invention is total and purposes are also by providing a kind of like this imaging device to realize that this imaging device comprises: at least one light-sensitive medium, and electrostatic latent image is formed thereon; Developing cell, being used to develop is formed on electrostatic latent image on the light-sensitive medium; Aforesaid transfer printing unit is used for the image that is developed on the light-sensitive medium is transferred to print media; Fixation unit is used for fixing the image that is transferred on the print media; And deliverying unit, be used to discharge the print media that image is fixed thereon.
Aforementioned and/or the others of the design that the present invention is total and purposes are also by providing a kind of like this device that is used to clean continuous band-shaped to realize that this device comprises: scraper arm is used for the predetermined period swing with the slewing rate correspondence of this strap-like member; And cleaning doctor, be connected with scraper arm elasticity and be biased to strap-like member with the predetermined time interval in the cycle.
Aforementioned and/or the others and the purposes of the design that the present invention is total also realize by the transfer printing unit that a kind of like this imaging device is provided, this transfer printing unit comprises: continuous band-shaped, be used to transport and be applied in to the toner of the electrostatic image print medium path to imaging device; Scraper arm is used for the predetermined period swing with the slewing rate correspondence of strap-like member; And cleaning doctor, be connected with scraper arm and be biased to strap-like member with the predetermined time interval in the cycle.
Aforementioned and/or the others of the design that the present invention is total and purposes are also by providing a kind of like this imaging device to realize that this imaging device comprises: light-sensitive medium is used to receive electrostatic latent image; Print medium path transmits print media via it; Developing cell applies toner to form developed image to light-sensitive medium; Continuous band-shaped, be used to receive developed image thereon and transmit this developed image to print medium path; Fixation unit makes developed image attached on the print media in the print medium path; Scraper arm is used for to be received in corresponding periodic oscillations of speed on the strap-like member with developed image; And cleaning doctor, be connected with scraper arm and be biased to strap-like member with the predetermined time interval in the cycle.
Aforementioned and/or the others of the design that the present invention is total and purposes are also by providing a kind of like this method that is used to clean continuous band-shaped to realize that this method comprises: rotate strap-like member with predetermined slewing rate; The strap-like member revolution is moving once, and this strap-like member is contacted at least once with cleaning doctor; And behind cleaning doctor contact strap-like member, this cleaning doctor bias voltage to this strap-like member predetermined time interval.
Aforementioned and/or the others of the design that the present invention is total and purposes realize that by a kind of like this formation method is provided this formation method comprises: apply on the light-sensitive medium that toner has been formed with sub-image on it to form developed image; Cleaning doctor is positioned to move apart transfer belt, and the transfer printing developed image is on this transfer belt; The transfer printing developed image is on printable media; Cleaning doctor is positioned to contiguous transfer belt; And the cleaning doctor bias voltage to transfer belt, remove toner on this transfer belt to be transferred on the printable media back at the developed image on this transfer belt.
Description of drawings
From below in conjunction with the explanation of accompanying drawing to embodiment, these of the design that the present invention is total and/or others and purposes will become obviously and be easier to and understand, in the accompanying drawing:
Fig. 1 is the synoptic diagram that schematically shows common strap-like member cleaning device;
Fig. 2 and 3 is diagrammatic sketch of the position of representing that respectively cleaning doctor and strap-like member position contacting and this cleaning doctor separate with strap-like member, with the structure and the operation of the strap-like member cleaning device of a kind of example embodiment of explanation total design according to the present invention;
Fig. 4 is the pressure structure of cleaning doctor of example embodiment of the total design of expression the present invention and the amplification diagrammatic sketch of operation; And
Fig. 5 schematically shows a kind of transfer printing unit of strap-like member cleaning device of example embodiment of the employing design total according to the present invention and the synoptic diagram that comprises the imaging device of this transfer printing unit.
Embodiment
The embodiment of now that referential expression the present invention in the accompanying drawings at length is total design, in the accompanying drawings, same reference numbers is all indicated same parts from start to finish.Below by these embodiment being described with reference to the drawings with explanation the present invention total design.
Fig. 2 and 3 is structure and operations of strap-like member cleaning device of a kind of example embodiment of expression total design according to the present invention.Particularly, Fig. 2 is the diagrammatic sketch of expression cleaning doctor and strap-like member position contacting, and Fig. 3 is the diagrammatic sketch of the position of representing that this cleaning doctor separates with strap-like member.
In Fig. 2 and 3, transfer printing unit 10 comprises strap-like member 20 and strap-like member cleaning device 30.
Strap-like member 20 utilizes at least two rollers 21 and 22 (with reference to Fig. 5) supporting, and rotates according to specified period.In addition, strap-like member 20 contacts with the periphery of at least one light-sensitive medium 80 (with reference to Fig. 5), and the toner image that is developed in thus on this light-sensitive medium 80 can be transferred on this strap-like member 20.
With reference to Fig. 5, transfer roll 90 is installed into the outside of strap-like member 20 and contacts, and the image that initially is transferred on this strap-like member 20 is transferred to through on the print media P between transfer roll 90 and the strap-like member 20.
The strap-like member cleaning device 30 of a kind of example embodiment of total design is removed the unnecessary toner that remains on the strap-like member 20 according to the present invention, promptly is not transferred to print media P and goes up and remain in toner on the strap-like member 20.Strap-like member cleaning device 30 comprises scraper arm 40, cleaning doctor 50, driving cam 60 and presser unit 70.
Fig. 4 represents the operation according to the presser unit 70 of above-mentioned example embodiment structure.In Fig. 4, scraper arm 40 is positioned at primary importance, and the cleaning doctor shown in the solid line 50 is positioned at first stop, and promptly this cleaning doctor 50 and strap-like member 20 contact and are right after and utilize presser unit 70 to apply position before the biasing force.Cleaning doctor 50 shown in the dotted line is positioned at second station, that is, this cleaning doctor 50 is via the position of presser unit 70 bias voltages to strap-like member 20.In other words, via two stations cleaning doctor 50 is contacted with strap-like member 20.Thus, use than traditional structure more controllable mode make 20 contacts of cleaning doctor 50 and strap-like member or separate, in traditional structure, the single motion of the cleaning doctor of installing via rigidity makes cleaning doctor 50 contact with strap-like member 20.Therefore, can prevent the damage of the front end of cleaning doctor 50 and the problem of this cleaning doctor 50 bendings.
Fig. 5 is the synoptic diagram that schematically shows the imaging device that comprises transfer printing unit 10, adopts the strap-like member cleaning device 30 of a kind of example embodiment of total design according to the present invention in this transfer printing unit 10.As shown in Figure 5, paper feeding unit 110 is located on the bottom of main body 100 of imaging device, and developing cell 120 is located on the side of light-sensitive medium 80.The electrostatic latent image that is formed on the light-sensitive medium 80 develops to visual picture via developing cell 120.The toner image that is developed on the light-sensitive medium 80 initially is transferred on the transfer printing unit 10.The print media P that utilizes paper feeding unit 110 to pick up is sent between the strap-like member 20 and transfer roll 90 of transfer printing unit 10.Initially be transferred to toner image secondary transfer printing on the strap-like member 20 to print media P.The print media P that toner image is transferred on it is discharged to the outside through fixation unit 130 and deliverying unit 140.
When the toner image on being developed in light-sensitive medium was transferred on the strap-like member 20, scraper arm 40 was positioned at the second place, as shown in Figure 3.Therefore, cleaning doctor 50 separates with strap-like member 20.
In addition, if all toner images that are formed on the light-sensitive medium all are transferred on the strap-like member 20, and the toner image on this strap-like member 20 finally is transferred on the print media P that is transported between this strap-like member 20 and the transfer roll 90 then, then can handle driving cam 60 pivot scraper arm 40.Thus, scraper arm 40 is moved into primary importance.
When scraper arm 40 was positioned at primary importance as shown in Figure 2, the front end of cleaning doctor 50 contacted with strap-like member 20, and the toner that remains in then on this strap-like member 20 is eliminated.In the case, when making cleaning doctor 50 when first stop contacts with strap-like member 20 by mobile scraper arm 40 to primary importance, utilize presser unit 70 to slow down owing to contact the impact that causes at first stop between this cleaning doctor 50 and the strap-like member 20, the problem that prevents from thus in legacy system, to occur to damage and this cleaning doctor bending of this cleaning doctor leading edge.
In addition, presser unit 70 slow down since in the impact that the initial contact of the first stop of cleaning doctor 50 causes this cleaning doctor 50 of bias voltage, this cleaning doctor 50 that fully contacts with strap-like member 20 at second station thus remains in toner on this strap-like member 20 with the controllable mode removing.
In traditional imaging system since the cleaning doctor rigidity be installed on the scraper arm and utilize driving cam via the rotation of this scraper arm with the strap-like member contact or separate, so this cleaning doctor can be because the remarkable impact that contact causes damage and bending.Yet in this example embodiment of the total design of the present invention, the scraper arm 40 that cleaning doctor 50 utilizes driving cam 60 to pivot contacts with strap-like member 20 at first stop, and presser unit 70 is slowed down because the impact that this contact causes.In addition, presser unit 70 scraper 50 that keeps clean contacts with strap-like member 20 at second station, protects this cleaning doctor 50 to avoid damaging thus or crooked.
As mentioned above, the example embodiment of total design according to the present invention can reduce the damage and the bending of cleaning doctor, improves the durability of this cleaning doctor thus.In addition, the cleaning efficiency of strap-like member can increase to improve transfer quality.
In addition, can utilize contacting between driving cam and presser unit control cleaning doctor and the strap-like member, can freely design the pin joint of scraper arm thus, thereby make this cleaning doctor miniaturization via two stations.
Although described the transfer printing unit and the cleaning device that adopt transfer belt in the total design of above the present invention, this transfer belt only is an example of offset medium, and transfer drum also can be used as offset medium.Therefore, the cleaning device of total design also can be used for transfer drum effectively according to the present invention.
Although represented and described some embodiment of the total design of the present invention, but it will be understood by those skilled in the art that, can make these embodiment and change and do not break away from the principle and the spirit of the total design of the present invention, the scope of the design that the present invention is total is limited in claims and their equivalent.
Claims (12)
1. cleaning device comprises:
Scraper arm is installed near offset medium, to move to the primary importance and the second place;
Cleaning doctor is supported by described scraper arm, to contact with described offset medium when described scraper arm moves to described primary importance, separates with described offset medium when described scraper arm moves to the described second place; And
Presser unit is used for described cleaning doctor bias voltage to described offset medium,
Wherein said scraper arm can pivot around first pin joint,
Described cleaning doctor is installed on the described scraper arm pivoting around second pin joint, and
Described presser unit comprises: scrape knife support, be installed between described first and second pin joint; And spring, support and described scraping between the knife support between the described first pin joint place.
2. cleaning device according to claim 1 also comprises being used to rotate and moving the driving cam of described scraper arm to described first and second positions.
3. the transfer printing unit of an imaging device, described transfer printing unit comprises:
Offset medium is used to receive the image that is developed on the light-sensitive medium, rotates in contact with specified period and with the periphery of described light-sensitive medium simultaneously;
Transfer roll is used for the image that is transferred on the described offset medium is transferred to print media;
Scraper arm is installed near described offset medium, to move to the primary importance and the second place;
Cleaning doctor is supported by described scraper arm, to contact with described offset medium when described scraper arm moves to described primary importance, separates with described offset medium when described scraper arm moves to the described second place; And
Presser unit is used for described cleaning doctor bias voltage to described offset medium,
Wherein, described scraper arm can pivot around first pin joint,
Described cleaning doctor is installed on the described scraper arm pivoting around second pin joint, and
Described presser unit comprises: scrape knife support, be installed between described first and second pin joint; And spring, support and described scraping between the knife support between the described first pin joint place.
4. transfer printing unit according to claim 3 also comprises being used to rotate and moving the driving cam of described scraper arm to described first and second positions.
5. an imaging device comprises:
At least one light-sensitive medium, electrostatic latent image is formed thereon;
Developing cell, being used to develop is formed on described electrostatic latent image on the described light-sensitive medium;
Transfer printing unit is used for the image that is developed on the described light-sensitive medium is transferred to print media;
Fixation unit is used for fixing the described image that is transferred on the described print media; And
Deliverying unit is used to discharge the described print media that described image is fixed thereon;
Wherein, described transfer printing unit comprises:
Offset medium is used to receive the image that is developed on the light-sensitive medium, rotates in contact with specified period and with the periphery of described at least one light-sensitive medium simultaneously;
Transfer roll is used for the image that is transferred on the described offset medium is transferred to print media;
Scraper arm is installed near described offset medium, to move to the primary importance and the second place;
Cleaning doctor is supported by described scraper arm, to contact with described offset medium when described scraper arm moves to described primary importance, separates with described offset medium when described scraper arm moves to the described second place; And
Presser unit is used for described cleaning doctor bias voltage to described offset medium,
Wherein, described scraper arm can be rotated around first pin joint,
Described cleaning doctor is installed on the described scraper arm rotating around second pin joint, and
Described presser unit comprises: scrape knife support, be installed between described first and second pin joint; And spring, support and described scraping between the knife support between the described first pin joint place.
6. imaging device according to claim 5 also comprises being used to rotate and moving the driving cam of described scraper arm to described first and second positions.
7. one kind is used to clean continuous band-shaped device, comprising:
Scraper arm is used for the predetermined period swing with the slewing rate correspondence of described strap-like member, and described scraper arm can pivot around first pin joint;
Cleaning doctor is connected with described scraper arm elasticity and is biased to described strap-like member with the predetermined time interval in the described cycle, and described cleaning doctor is installed on the described scraper arm to pivot around second pin joint;
Scrape knife support, and described cleaning doctor is rigidly connected and is installed between described first and second pin joint; And
Bias piece, support and described scraping between the knife support between the described first pin joint place, be used for to described scrape knife support apply biasing force with described cleaning doctor bias voltage to described strap-like member.
8. device according to claim 7 wherein, also comprises:
Be used for rotating and engaging so that the driving cam of its swing with described scraper arm with predetermined period.
9. device according to claim 7, wherein, described predetermined period equals described strap-like member cycle of turnover.
10. the transfer printing unit of an imaging device comprises:
Continuous band-shaped, be used to transport and be applied in to the toner of electrostatic image print medium path to described imaging device;
Scraper arm is used for the predetermined period swing with the slewing rate correspondence of described strap-like member, and described scraper arm can pivot around first pin joint;
Cleaning doctor is connected with described scraper arm and is biased to described strap-like member with the predetermined time interval in the described cycle, and described cleaning doctor is installed on the described scraper arm to pivot around second pin joint;
Scrape knife support, and described cleaning doctor is rigidly connected and is installed between described first and second pin joint; And
Bias piece, support and described scraping between the knife support between the described first pin joint place, be used for to described scrape knife support apply biasing force with described cleaning doctor bias voltage to described strap-like member.
11. transfer printing unit according to claim 10, wherein, the cycle of described scraper arm swing equals single image and is transferred to the cycle that is located on the interior print media of described print medium path.
12. an imaging device comprises:
Light-sensitive medium is used to receive electrostatic latent image;
Print medium path transmits print media via it;
Developing cell applies toner to form developed image for described light-sensitive medium;
Continuous band-shaped, be used to receive described developed image thereon and transmit described developed image to described print medium path;
Fixation unit makes described developed image attached on the described print media in the described print medium path;
Scraper arm is used for to be received in corresponding periodic oscillations of speed on the described strap-like member with described developed image, and described scraper arm can pivot around first pin joint;
Cleaning doctor is connected with described scraper arm and is biased to described strap-like member with the predetermined time interval in the described cycle, and described cleaning doctor is installed on the described scraper arm to pivot around second pin joint;
Scrape knife support, and described cleaning doctor is rigidly connected and is installed between described first and second pin joint; And
Bias piece, support and described scraping between the knife support between the described first pin joint place, be used for to described scrape knife support apply biasing force with described cleaning doctor bias voltage to described strap-like member.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1112/07 | 2007-01-04 | ||
| KR20070001112 | 2007-01-04 | ||
| KR1020070022922A KR101454300B1 (en) | 2007-01-04 | 2007-03-08 | Transfer belt cleaning apparatus, travsfer unit and image forming apparatus having the same |
| KR22922/07 | 2007-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101216693A CN101216693A (en) | 2008-07-09 |
| CN101216693B true CN101216693B (en) | 2011-09-28 |
Family
ID=39623138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101814454A Expired - Fee Related CN101216693B (en) | 2007-01-04 | 2007-10-25 | Cleaning apparatus, and transfer unit and image forming apparatus including the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101454300B1 (en) |
| CN (1) | CN101216693B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174172A (en) * | 1976-12-17 | 1979-11-13 | Xerox Corporation | Cleaning methods and apparatus for a photocopying device |
| US5587769A (en) * | 1994-11-11 | 1996-12-24 | Minolta Co., Ltd. | Image forming apparatus allowing simple replacement of intermediate transfer member and easy maintenance and handling of paper jams |
| US6785500B2 (en) * | 2001-07-13 | 2004-08-31 | Ricoh Company, Ltd. | Image forming apparatus including image transfer body with elastic layer and coating layer |
| JP2004246011A (en) * | 2003-02-13 | 2004-09-02 | Fuji Xerox Co Ltd | Image forming apparatus and cleaning apparatus |
| JP2006317479A (en) * | 2005-05-10 | 2006-11-24 | Konica Minolta Business Technologies Inc | Image forming apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002278308A (en) | 2001-03-19 | 2002-09-27 | Ricoh Co Ltd | Cleaning device for image forming device |
| JP2005351946A (en) | 2004-06-08 | 2005-12-22 | Konica Minolta Business Technologies Inc | Image forming apparatus |
-
2007
- 2007-03-08 KR KR1020070022922A patent/KR101454300B1/en active IP Right Grant
- 2007-10-25 CN CN2007101814454A patent/CN101216693B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174172A (en) * | 1976-12-17 | 1979-11-13 | Xerox Corporation | Cleaning methods and apparatus for a photocopying device |
| US5587769A (en) * | 1994-11-11 | 1996-12-24 | Minolta Co., Ltd. | Image forming apparatus allowing simple replacement of intermediate transfer member and easy maintenance and handling of paper jams |
| US6785500B2 (en) * | 2001-07-13 | 2004-08-31 | Ricoh Company, Ltd. | Image forming apparatus including image transfer body with elastic layer and coating layer |
| JP2004246011A (en) * | 2003-02-13 | 2004-09-02 | Fuji Xerox Co Ltd | Image forming apparatus and cleaning apparatus |
| JP2006317479A (en) * | 2005-05-10 | 2006-11-24 | Konica Minolta Business Technologies Inc | Image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101216693A (en) | 2008-07-09 |
| KR101454300B1 (en) | 2014-10-27 |
| KR20080064696A (en) | 2008-07-09 |
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