CN102744191A - Coating method of coating and photosensitive drum - Google Patents
Coating method of coating and photosensitive drum Download PDFInfo
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- CN102744191A CN102744191A CN2012102557650A CN201210255765A CN102744191A CN 102744191 A CN102744191 A CN 102744191A CN 2012102557650 A CN2012102557650 A CN 2012102557650A CN 201210255765 A CN201210255765 A CN 201210255765A CN 102744191 A CN102744191 A CN 102744191A
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Abstract
The invention aims at providing a coating method capable of enabling the thickness of the coating of a conductive base body of a photosensitive drum to be uniform and the photosensitive drum with uniform coating thickness. The coating method of the coating is used for coating the working surface of the conductive base body of the photosensitive drum. The coating method of the coating comprises the following steps of: (1) preparing the conductive base body and coating liquid; (2) immersing the conductive base body into the coating liquid; (3) taking out the conductive base body coated with the coating liquid, placing on a rotating tool to enable the conductive base body to rotate along a central shaft of the rotating tool; and (4) drying the conductive base body coated with the coating liquid.
Description
Technical field
The present invention relates to the electrophotographic image forming field, especially a kind of coating process of coating of photosensitive drums.
Background technology
Electrophotographic image forming such as laser printer are a kind of electrofax principles of utilizing, at least through overcharge, exposure, development, transfer printing, photographic fixing, process of cleaning, form the equipment that forms image on medium such as the paper at image.
In charging process,, utilize and the surface of light-sensitive element such as photosensitive drums is filled with predetermined electric charge uniformly like corona discharge mode or charging roller through charging device; At exposure process; Optionally make public in light-sensitive element surface to filling even predetermined charge with; Because the light sensitive characteristic of light-sensitive element; To be grounded cancellation by the electric charge of exposed areas, like this, the light-sensitive element surface forms the electrostatic latent image that distribution characterized by electric charge that forms image corresponding to institute's desire after exposure; At developing process, through developing apparatus such as developer roll, developer that is used to form visual image such as carbon dust, the electrostatic latent image district on the surface of light-sensitive element is delivered in the effect of mating reaction power such as electric field force, and it is visual to make that above-mentioned electrostatic latent image obtains; In transfer process,, transfer to image to the developer on the electrostatic latent image on light-sensitive element surface like transfer roll and form on medium such as the paper through transfer device; At fixing, be secured in the developer of transferring on the image medium on the image formation medium through fixing device.At cleaning course, through cleaning device such as cleaning doctor, the developer of light-sensitive element remained on surface is wiped off, in order to avoid get into next imaging cycle, cause print defect.
By above visible, in electrophotographic image forming, the effect of light-sensitive element such as photosensitive drums is very important, and its quality directly influences the print quality of electrophotographic image forming.Photosensitive drums generally is formed with photosensitive layer on conductive base, and photosensitive layer generally comprises charge generation layer and charge transport layer, and the thickness of two layers of coatings is generally tens microns, and the uniformity of thickness is very large to the influence of print quality.Existing photosensitive drums coating coating process has dip coating, spraying process, rolling method etc., and dip coating is not widely used owing to equipment requirements simple to operate is high.Dip coating promptly grips an end of conducting base, and it is immersed in order in the coating fluid that forms charge generation layer or charge transport layer, takes out dryly then, because the influence of gravity, it is thick and the top thin that the coating of the photosensitive drums that this method is produced tends to the below.
Summary of the invention
Main purpose of the present invention provides a kind of uniform coating process of conducting base coating layer thickness that can make photosensitive drums;
Another object of the present invention provides the uniform photosensitive drums of a kind of coating layer thickness.
For realizing above-mentioned main purpose, the coating process of coating provided by the invention is used for the working face of photosensitive drums conducting base is carried out the coating coating, and this method comprises the steps: (1) preparation conducting base and coating fluid; (2) conducting base is immersed in the coating fluid; (3) take out the conducting base that is coated with coating fluid, be placed on the rotary tooling, make said conducting base along its central shaft rotation; (4) make the conducting base that is coated with coating fluid dry.
Visible by above scheme, the conducting base that is coated with coating fluid is through rotation, and the coating fluid with certain flowability distributes along the conducting base outer peripheral face under centrifugal action equably, and then forms the uniform photosensitive drums of coating layer thickness.
Preferred scheme is in step (3), and the rotary speed of conducting base is 500 rev/mins to 2000 rev/mins.When implementing, the rotary speed of conducting base is decided according to the viscosity of coating fluid, can select high rotational speed for use when coating fluid viscosity is big and coating fluid viscosity hour can be selected lower rotating speed for use.
Preferred scheme is in step (3), and the rotary speed of conducting base is 800 rev/mins to 1000 rev/mins.
Another preferred scheme is in step (3), and the rotational time of said conducting base is 0.5 ~ 5 minute.After the coating fluid on the conducting base solidifies basically, can stop the rotation, stop the rotation again after also can waiting coating fluid to solidify fully.
Preferred scheme is in step (3), and the rotational time of said conducting base is 1 ~ 1.5 minute.
For realizing another purpose of the present invention, photosensitive drums provided by the invention comprises the conducting base of coating.Conducting base is the body of both ends open, and support and drive division are installed in the openings at two ends place of conducting base respectively.Wherein the coating on the conducting base is coated with according to said method.
Description of drawings
Fig. 1 is the schematic flow sheet of coating process embodiment of the present invention.
The specific embodiment
As shown in Figure 1, after processed, the surface reaches the requirement that can be coated with as the aluminum pipe 1 of conducting base, is used to form coating fluid 2 preparations of charge generation layer and mixes the back subsequent use; Immerse aluminum pipe in the coating fluid, take out after about 3 minutes; The conducting base that has the surface coating fluid is arranged on the rotary tooling 3, and hotwire, makes aluminum pipe 1 around its central shaft rotation 1 ~ 1.5 minute, and rotating speed is 800 rev/mins to 1000 rev/mins; Stop operating, make conducting base dry.Can obtain the conducting base that the surface has charge generation layer like this.
Using the same method then is coated with charge transport layer having on the conducting base of charge generation layer, and installs support and drive division, can obtain the uniform photosensitive drums of coating layer thickness.In the production process of photosensitive drums, its coating also can have only one deck to adopt coating process of the present invention, and other layers adopt conventional method coating.
When making the surface have the conducting base rotation of coating fluid; Rotating speed can be regulated according to the viscosity of coating fluid, operating temperature etc.; Can not cross ambassador's coating fluid because of rotating speed and deviate from, can not have the equally distributed effect of coating fluid that makes because of rotating speed is too small from the conducting base surface.The selection of rotational time can promptly stop after coating fluid solidifies basically; Stop again after also can waiting the coating fluid bone dry; Because conducting base when rotation, the air velocity at its outer peripheral face place is accelerated, and makes the coating fluid can be dry quickly and on the conducting base outer peripheral face, form coating.
Claims (6)
1. the coating process of coating is used for the working face of photosensitive drums conducting base is carried out the coating coating, comprises the steps:
(1) prepares conducting base and coating fluid;
(2) conducting base is immersed in the coating fluid;
(3) take out the conducting base that is coated with coating fluid, be placed on the rotary tooling, make said conducting base along its central shaft rotation;
(4) make the conducting base that is coated with coating fluid dry.
2. according to the coating process of the said coating of claim 1, it is characterized in that:
In step (3), the rotary speed of said conducting base is 500 rev/mins to 2000 rev/mins.
3. the coating process of coating according to claim 2 is characterized in that:
In step (3), the rotary speed of said conducting base is 800 rev/mins to 1000 rev/mins.
4. the coating process of coating according to claim 1 is characterized in that:
In step (3), the rotational time of said conducting base is 0.5 ~ 5 minute.
5. the coating process of coating according to claim 4 is characterized in that:
In step (3), the rotational time of said conducting base is 1 ~ 1.5 minute.
6. photosensitive drums comprises
The conducting base of coating, said conducting base are the body of both ends open;
Support and drive division are installed in the openings at two ends place of said conducting base respectively;
It is characterized in that:
Coating on said conducting base method according to claim 1 is coated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102557650A CN102744191A (en) | 2012-07-23 | 2012-07-23 | Coating method of coating and photosensitive drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102557650A CN102744191A (en) | 2012-07-23 | 2012-07-23 | Coating method of coating and photosensitive drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102744191A true CN102744191A (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102557650A Pending CN102744191A (en) | 2012-07-23 | 2012-07-23 | Coating method of coating and photosensitive drum |
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| CN (1) | CN102744191A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110496765A (en) * | 2019-09-03 | 2019-11-26 | 苏州恒久光电科技股份有限公司 | The OPC drum batch processing method of dropoff can be improved |
| CN110496764A (en) * | 2019-09-03 | 2019-11-26 | 苏州恒久光电科技股份有限公司 | The OPC drum processing method of dropoff can be improved |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1681605A (en) * | 2002-09-10 | 2005-10-12 | S.I.P.A.社会工业化计划与自动化股份公司 | Process and coating plant of containers |
| JP2009066548A (en) * | 2007-09-14 | 2009-04-02 | Konica Minolta Business Technologies Inc | Coating method, and conductive roller manufacturing method |
| CN101654172A (en) * | 2008-08-21 | 2010-02-24 | 京瓷美达株式会社 | Protection component for photosensitive drum, photosensitive drum with the protection component and its packing method |
-
2012
- 2012-07-23 CN CN2012102557650A patent/CN102744191A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1681605A (en) * | 2002-09-10 | 2005-10-12 | S.I.P.A.社会工业化计划与自动化股份公司 | Process and coating plant of containers |
| JP2009066548A (en) * | 2007-09-14 | 2009-04-02 | Konica Minolta Business Technologies Inc | Coating method, and conductive roller manufacturing method |
| CN101654172A (en) * | 2008-08-21 | 2010-02-24 | 京瓷美达株式会社 | Protection component for photosensitive drum, photosensitive drum with the protection component and its packing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110496765A (en) * | 2019-09-03 | 2019-11-26 | 苏州恒久光电科技股份有限公司 | The OPC drum batch processing method of dropoff can be improved |
| CN110496764A (en) * | 2019-09-03 | 2019-11-26 | 苏州恒久光电科技股份有限公司 | The OPC drum processing method of dropoff can be improved |
| CN110496765B (en) * | 2019-09-03 | 2021-12-21 | 苏州恒久光电科技股份有限公司 | OPC drum batch processing method capable of improving axial uniformity |
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Application publication date: 20121024 |