CN113820932A - Negative electricity three-layer OPC drum - Google Patents
Negative electricity three-layer OPC drum Download PDFInfo
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- CN113820932A CN113820932A CN202110960730.6A CN202110960730A CN113820932A CN 113820932 A CN113820932 A CN 113820932A CN 202110960730 A CN202110960730 A CN 202110960730A CN 113820932 A CN113820932 A CN 113820932A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
- G03G15/751—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to drum
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/0202—Dielectric layers for electrography
- G03G5/0205—Macromolecular components
- G03G5/0211—Macromolecular components obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/0202—Dielectric layers for electrography
- G03G5/0217—Inorganic components
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0532—Macromolecular bonding materials obtained by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/0542—Polyvinylalcohol, polyallylalcohol; Derivatives thereof, e.g. polyvinylesters, polyvinylethers, polyvinylamines
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/056—Polyesters
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/0564—Polycarbonates
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/0567—Other polycondensates comprising oxygen atoms in the main chain; Phenol resins
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/0575—Other polycondensates comprising nitrogen atoms with or without oxygen atoms in the main chain
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Inorganic Chemistry (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
The invention provides a negative electricity three-layer OPC drum, which belongs to the field of organic photoconductors, and comprises a conductive base pipe, and a charge blocking layer, a charge generation layer and a charge transmission layer which are distributed on the outer wall of the conductive base pipe from inside to outside; the charge blocking layer, the charge generation layer and the charge transmission layer are formed by drying and solidifying a charge blocking layer solution, a charge generation layer solution and a charge transmission layer solution which are sequentially coated on the surface of the conductive base tube. The negative electricity three-layer OPC drum is low in cost, simple in production and processing technology, high in production efficiency, capable of effectively solving the problems of low adhesive force, low temperature resistance and high residual potential of a coating structure, long in service life, capable of printing in a high-temperature environment and good in printing effect.
Description
Technical Field
The invention belongs to the technical field of organic photoconductors, and particularly relates to a negative electricity three-layer OPC drum.
Background
The OPC drum is a photoelectric conversion device formed by coating photosensitive material on the surface of a conductive aluminum tube, is widely used in laser printing and copying, has direct influence on the use of a laser printing system due to the surface state, and determines whether a laser printer or a copying machine can normally operate or not and outputs high-quality printed documents.
Traditional OPC drum surface coating material adhesive force is weak, easily appears local skinning phenomenon after the use, influences the life of sensitization drum, and its temperature resistance is lower simultaneously, and under the equipment long-term operating condition, easily generate heat and cause the influence to the sensitization drum, and then influence the printing effect.
Disclosure of Invention
The embodiment of the invention provides a negative electricity three-layer OPC drum, which aims to solve the problems in the background art.
The embodiment of the invention is realized by the following steps that a negative electricity three-layer OPC drum comprises a conductive base pipe, and a charge blocking layer, a charge generating layer and a charge transmission layer which are distributed on the outer wall of the conductive base pipe from inside to outside; the charge blocking layer, the charge generation layer and the charge transmission layer are formed by drying and solidifying a charge blocking layer solution, a charge generation layer solution and a charge transmission layer solution which are sequentially coated on the surface of the conductive base tube.
The charge blocking layer solution includes a metal oxide, a first binder, an organic solvent, and a dispersant.
The metal oxide has two functions, namely, the function of reducing the resistance of the charge blocking layer and the function of increasing the surface roughness of the charge blocking layer.
If the resistance is too high, electrons are not easy to pass through the charge blocking layer, so that high residual potential exists when the OPC drum performs next printing, and ghost images are generated during printing; if the resistance is too small, leakage will occur, and the resistance value is 103ohm-cm to 1012ohm-cm, preferably 107ohm-cm to 1010ohm-cm. In order to meet the functional requirements, the metal oxide is granular, and the metal oxide at least comprises one of titanium oxide, zinc oxide, aluminum oxide, barium sulfate and iron oxide granules. The metal oxide has a certain refractive index, can reduce reflected light, reduce interference waves and avoid interference fringes caused during printing, and the metal oxide suitable for the light capable of being scattered is preferably titanium oxide and zinc oxide. Titanium oxide is preferably used, and rutile titanium oxide is more preferred.
Meanwhile, if the particle size of the metal oxide related in the charge blocking layer is too small, the effect of covering fine defects on the surface of the conductive base material cannot be achieved, and meanwhile, the roughness of the surface of the base material is difficult to increase; but the particle size can not be too large, the mass of the metal oxide is large, and the prepared charge blocking layer solution is unstable and easy to settle, so the particle size of the metal oxide is selected to be 0.01-1 um; preferably 0.03-0.3 um.
The first adhesive uses a crosslinkable thermoplastic resin or a thermosetting resin or a mixture thereof, and can be mainly attached to the metal oxide; the crosslinking reaction is reacted and mixed by adding an acid catalyst, preferably p-toluenesulfonic acid. Such as polycarbonate, polyamide resin, polyamic acid resin, alkyd resin, alkylated melamine resin, resol resin, epoxy resin, or mixtures thereof. Polyamide resins and alkylated melamine resins are preferred. The metal oxide and the binder account for 10 to 70 percent, preferably 20 to 50 percent of the solution of the charge blocking layer, when the content exceeds 50 percent, the solution is easy to precipitate, the service life of the solution is shortened, in addition, the metal oxide is easy to disperse in the solution and is not uniform, the thickness of the formed charge blocking layer is not uniform, the charge blocking layer causes the electrical characteristics of the OPC to be non-uniform after coating, and the OPC is not favorable for printing under the high-temperature and high-humidity environment. When the content is less than 10%, the thickness of the formed charge blocking layer is small, the requirement on the conductive substrate is high, and black dots are easily printed.
The organic solvent comprises one or more mixed solvents of methanol, butanol, n-butanol, cyclohexanone and methyl ethyl ketone; capable of dissolving the selected binder while being volatile.
The dispersing agent is organic silicone oil and at least comprises one of octamethylsiloxane and 3-aminopropyltriethoxysilane; the solution dispersion can be carried out by wet dispersion in a solvent by using a known mechanical pulverization device such as a ball mill, a sand mill, a grinder, an oscillator, or the like. The dispersion medium can be selected from glass beads, zirconia beads, etc. A grinder and a ball mill are preferable in terms of the dispersing effect. The grinder is a nano grinder, and the solution enters the grinding cavity from the top of the feeding pump. During aggressive grinding, the bar pin and the stator constantly impact the grinding medium vigorously. The grinding media acts on the material again and the material is completely ground. At the discharge, the difference is that the grinding media is returned to the grinding chamber due to the difference in density, but the material is circulated back and forth under pressure from the feed pump through the gap separator and back into the grinding chamber through the pump. The mechanical principle of the ball mill is that a grinding tank of the ball mill rotates, and materials and a dispersion medium complete dropping, impacting and self-grinding operations together in the grinding tank, so that the dispersion of a solution is realized.
The charge generation layer solution includes a charge generation material, a second binder, a first solvent, and a first additive.
Wherein the charge generation material comprises any one or a mixture of two of azo pigments and phthalocyanine pigments; the azo pigment includes at least one of a monoazo pigment, a disazo pigment, and a trisazo pigment. The phthalocyanine pigment includes at least one of a metal phthalocyanine pigment and a nonmetal phthalocyanine pigment.
The second binder includes at least one of polycarbonate, polyester resin, polyarylate resin, polyvinyl acetal resin, butyral resin, alkyd resin, epoxy resin, and urea resin; that is, the second binder may be any one of polycarbonate, polyester resin, polyarylate resin, polyvinyl acetal resin, butyral resin, alkyd resin, epoxy resin, and urea resin, and a mixture of a plurality of binders may be used.
The first solvent at least comprises one of dichloromethane, methyl ethyl ketone, cyclohexanone and tetrahydrofuran; that is, the first solvent may be any one of dichloromethane, methyl ethyl ketone, cyclohexanone, and tetrahydrofuran, or a mixture of a plurality of solvents, and is preferably a ketone solvent that does not dissolve the coated charge blocking layer.
The first additive is a silicone oil and is used for solution dispersion, and the dispersion may be wet-dispersed in a solvent by using a known mechanical pulverization device such as a ball mill, a sand mill, a grinder, or an oscillator. Preferably ball mill dispersion.
The charge transport layer solution includes a charge transport material, a third binder, a second solvent, and a second additive.
The charge transport material may be any one of hole-conducting materials such as triarylamine compounds, hydrazone compounds, styryl compounds, triarylmethane compounds, or a mixture of a plurality of such materials.
The third binders each include at least one of polycarbonate, polyester resin, polyarylate resin, polyvinyl acetal resin, butyral resin, alkyd resin, epoxy resin, and urea resin; polycarbonate is preferable, and bisphenol Z polycarbonate is more preferable.
Here, the weight ratio of the charge transport material to the binder in the charge transport layer solution is 1:4 to 4:1, preferably 1:2 to 1: 1.
The second solvent includes at least one of an ether solvent, an aromatic hydrocarbon solvent and a halogenated hydrocarbon solvent. The ether solvent at least comprises one of tetrahydrofuran, dioxolane, dimethoxymethane and diethoxymethane; the halogenated hydrocarbon solvent includes at least one of dichloromethane and dichloroethane.
The second additive at least comprises one of an antioxidant, a light stabilizer, an ultraviolet absorber, silicone oil and silicon chloride.
The coating modes of the charge blocking layer solution, the charge generating layer solution and the charge transmission layer solution in the invention are spraying, roll coating and dip coating, preferably dip coating, and the thickness of the charge blocking layer solution, the charge generating layer solution and the charge transmission layer solution is controlled uniformly. After drying, the thickness of the charge blocking layer is 1-15um, preferably 2-8 um; the thickness of the charge transport layer is 5um to 50um, preferably 10 to 30um, and if the thickness of the charge transport layer is less than 5um, the voltage at which discharge starts is too low, resulting in leakage, and if it exceeds 50um, the electrical characteristics are deteriorated.
The negative electricity three-layer OPC drum is low in cost, simple in production and processing technology, high in production efficiency, capable of effectively solving the problems of low adhesive force, low temperature resistance and high residual potential of a coating structure, long in service life, capable of printing in a high-temperature environment and good in printing effect.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying tables and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The invention provides a negative electricity three-layer OPC drum which comprises a conductive base pipe, and a charge blocking layer, a charge generation layer and a charge transmission layer which are distributed on the outer wall of the conductive base pipe from inside to outside.
The thickness of the charge blocking layer is 2um, and the charge blocking layer is prepared by mixing 72 parts of methanol, 24 parts of butanol and 24 parts of toluene, adding 4 parts of melamine, heating to 50 ℃, and then adding 16 parts of polyamide resin (CM8000) until the mixture is completely dissolved. Adding 72 parts of methanol, 24 parts of butanol and 24 parts of toluene solvent into the dissolved solution, mixing, adding 48 parts of metal oxide titanium oxide (TT0-55D) and 1 part of methyl siloxane, then pouring into a grinder for grinding, controlling the rotating speed to be 2000rmp, grinding for 2 hours to obtain a charge blocking layer dispersion solution, then coating the charge blocking layer dispersion solution on the surface of a conductive substrate, and drying and solidifying to obtain the conductive substrate.
The thickness of the charge generation layer is 0.3um, and the charge generation layer is formed by mixing and ball-milling 20 parts of Y-phthalocyanine pigment, 10 parts of polyvinyl butyral, 450 parts of cyclohexanone and 450 parts of methyl ethyl ketone, adding glass beads with the outer diameter of 2mm, ball-milling for 2 days to obtain a charge generation layer dispersion solution, coating the charge generation layer dispersion solution on the surface of a charge barrier layer, and drying and solidifying.
The charge transport layer has a thickness of 26um and is formed by introducing 200 parts of tetrahydrofuran, 30 parts of PCZ, 10 parts of triphenyldiamine derivative (TPD), 10 parts of Triarylamine (TPA) and 0.009 part of silicone oil into a stirring kettle, starting stirring to obtain a charge transport layer solution, coating the charge transport layer solution on the surface of a charge generation layer, and drying and solidifying the charge transport layer solution.
Example 2
In contrast to example 1, the two parts of solvent for the charge blocking layer were mixed from 84 parts of methanol, 12 parts of 1-propanol and 24 parts of toluene, and methoxy methylated polyamide (FR-104) was used as the binder.
Example 3
Unlike example 1, the metal oxide of the charge blocking layer was titanium oxide (TTO-55N), and 0.1 part of p-toluenesulfonic acid catalyst was added when the binder was dissolved.
Example 4
In contrast to example 1, the charge transport material of the charge transport layer was 20 parts of triphenyldiamine derivative (TPD).
Example 5
Unlike example 1, the solvent of the charge generation layer was a mixture of 90 parts of cyclohexanone and 720 parts of methyl ethyl ketone.
The solution stability, adhesion after coating, electrical properties, print jetness, print mottle of examples 1-5 were tested and the results are shown in the following table:
| examples | Stability of solution | Adhesion force | Electric characteristics | Blackness of printing | Printing pits |
| Example 1 | Superior food | Level 0 | Superior food | Superior food | Superior food |
| Example 2 | Superior food | Level 0 | Superior food | Good wine | Superior food |
| Example 3 | Superior food | Level 0 | Superior food | Superior food | Superior food |
| Example 4 | Superior food | Level 0 | Superior food | Superior food | Superior food |
| Example 5 | Superior food | Level 0 | Superior food | Good wine | Superior food |
Wherein, the solution stability is as follows: preferably no precipitation, stable viscosity;
adhesion force: grade 0 indicates no shedding after coating and drying;
electrical characteristics: preferably, the surface residual potential is less than 60V;
printing blackness: excellent in terms of a blackness of 1.4 or more, good in terms of a blackness of 1.3 to 1.4;
printing pits: excellent is no mottling after printing.
In conclusion, the negative electricity three-layer OPC drum is low in cost, simple in production and processing technology, high in production efficiency, long in service life, capable of effectively solving the problems of low adhesive force, low temperature resistance and high residual potential of a coating structure, capable of printing in a high-temperature environment and good in printing effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A negative electricity three-layer OPC drum comprises a conductive base pipe, and a charge blocking layer, a charge generation layer and a charge transmission layer which are distributed on the outer wall of the conductive base pipe from inside to outside; the charge blocking layer, the charge generation layer and the charge transmission layer are formed by drying and solidifying a charge blocking layer solution, a charge generation layer solution and a charge transmission layer solution which are sequentially coated on the surface of the conductive base tube, and the charge blocking layer, the charge generation layer and the charge transmission layer are characterized in that the charge blocking layer solution comprises metal oxide, a first adhesive, an organic solvent and a dispersing agent;
the charge generation layer solution comprises a charge generation material, a second binder, a first solvent and a first additive;
the charge transport layer solution comprises a charge transport material, a third binder, a second solvent, and a second additive;
the metal oxide is granular, and at least comprises one of titanium oxide, zinc oxide, aluminum oxide, barium sulfate and iron oxide granules;
the first adhesive comprises a crosslinking reaction mixture of any one or more of polycarbonate, polyamide resin, polyamic acid resin, alkyd resin, alkylated melamine resin and soluble phenolic resin;
the organic solvent comprises one or more mixed solvents of methanol, butanol, n-butanol, cyclohexanone and methyl ethyl ketone;
the dispersing agent is organic silicone oil and at least comprises one of octamethylsiloxane and 3-aminopropyltriethoxysilane;
the charge generation material comprises any one or a mixture of two of azo pigments and phthalocyanine pigments;
the first solvent at least comprises one of dichloromethane, methyl ethyl ketone, cyclohexanone and tetrahydrofuran;
the first additive is silicone oil; the charge transport material includes at least one of triarylamine compound, hydrazone compound, styryl compound and triarylmethane compound;
the second binder and the third binder each comprise at least one of a polycarbonate, a polyester resin, a polyarylate resin, a polyvinyl acetal resin, a butyral resin, an alkyd resin, an epoxy resin, and a urea resin;
the second solvent at least comprises one of an ether solvent, an aromatic hydrocarbon solvent and a halogenated hydrocarbon solvent;
the second additive includes at least one of an antioxidant, a light stabilizer, an ultraviolet absorber, a silicone oil, and a silicon chloride.
2. The negatively charged three-layer OPC drum of claim 1 wherein the metal oxide has a particle size of 0.01 to 1 um.
3. A negatively charged three-layer OPC drum according to claim 1 wherein the metal oxide has a particle size of 0.03 to 0.3 um.
4. The negatively charged three-layer OPC drum of claim 1 wherein the crosslinking reaction is mixed by adding an acid catalyst to react.
5. The negatively charged three-layer OPC drum of claim 4 wherein the acid catalyst is p-toluenesulfonic acid.
6. The negatively charged three-layer OPC drum of claim 1 wherein the azo pigment comprises at least one of a monoazo pigment, a disazo pigment and a trisazo pigment.
7. The negatively charged three-layer OPC drum of claim 1 wherein the phthalocyanine pigment comprises at least one of a metal phthalocyanine pigment and a non-metal phthalocyanine pigment.
8. The negatively charged three-layer OPC drum of claim 1 wherein the ethereal solvent comprises at least one of tetrahydrofuran, dioxolane, dimethoxymethane and diethoxymethane.
9. The negatively charged three-layer OPC drum of claim 1 wherein the aromatic hydrocarbon solvent comprises at least one of toluene, xylene and chlorobenzene.
10. The negatively charged three-layer OPC drum of claim 1 wherein the halogenated hydrocarbon solvent comprises at least one of methylene chloride and ethylene dichloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960730.6A CN113820932A (en) | 2021-08-20 | 2021-08-20 | Negative electricity three-layer OPC drum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960730.6A CN113820932A (en) | 2021-08-20 | 2021-08-20 | Negative electricity three-layer OPC drum |
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| CN113820932A true CN113820932A (en) | 2021-12-21 |
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| CN202110960730.6A Pending CN113820932A (en) | 2021-08-20 | 2021-08-20 | Negative electricity three-layer OPC drum |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006058765A (en) * | 2004-08-23 | 2006-03-02 | Ricoh Co Ltd | Electrophotographic photoreceptor, image forming apparatus and process cartridge |
| US20060240345A1 (en) * | 2005-04-25 | 2006-10-26 | Xerox Corporation | Photoreceptors |
| CN102998917A (en) * | 2012-11-20 | 2013-03-27 | 宁波舜韵光电科技有限公司 | Three-layer coating process and photosensitive drum prepared by adopting same |
| CN111085417A (en) * | 2019-12-19 | 2020-05-01 | 苏州恒久光电科技股份有限公司 | Processing method of electronegative multilayer OPC drum |
| CN113093488A (en) * | 2021-04-08 | 2021-07-09 | 苏州恒久光电科技股份有限公司 | PIP intelligent regeneration method |
-
2021
- 2021-08-20 CN CN202110960730.6A patent/CN113820932A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006058765A (en) * | 2004-08-23 | 2006-03-02 | Ricoh Co Ltd | Electrophotographic photoreceptor, image forming apparatus and process cartridge |
| US20060240345A1 (en) * | 2005-04-25 | 2006-10-26 | Xerox Corporation | Photoreceptors |
| CN102998917A (en) * | 2012-11-20 | 2013-03-27 | 宁波舜韵光电科技有限公司 | Three-layer coating process and photosensitive drum prepared by adopting same |
| CN111085417A (en) * | 2019-12-19 | 2020-05-01 | 苏州恒久光电科技股份有限公司 | Processing method of electronegative multilayer OPC drum |
| CN113093488A (en) * | 2021-04-08 | 2021-07-09 | 苏州恒久光电科技股份有限公司 | PIP intelligent regeneration method |
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