JPH0222374B2 - - Google Patents
Info
- Publication number
- JPH0222374B2 JPH0222374B2 JP2720384A JP2720384A JPH0222374B2 JP H0222374 B2 JPH0222374 B2 JP H0222374B2 JP 2720384 A JP2720384 A JP 2720384A JP 2720384 A JP2720384 A JP 2720384A JP H0222374 B2 JPH0222374 B2 JP H0222374B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- electrophotographic photoreceptor
- carbon
- conductive layer
- photoreceptor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 108091008695 photoreceptors Proteins 0.000 claims description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000005018 casein Substances 0.000 description 2
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 2
- 235000021240 caseins Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
Classifications
-
- 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
- G03G5/14—Inert intermediate or cover layers for charge-receiving layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は、電子写真感光体に関し、とくに感光
体のバイアス落ちをおこすことなく、低湿でもカ
ブリのないコピーが得られる酸化亜鉛感光体に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrophotographic photoreceptor, and more particularly to a zinc oxide photoreceptor that can produce fog-free copies even at low humidity without causing bias drop in the photoreceptor.
従来の感光体としては、第１図に示すように、
マイラーフイルムなどの支持の上にアルミニウム
箔をラミネートしたり、導電剤を含む塗料を塗工
して導電層を設け、その上にカゼイン、ポリビニ
ルアルコール、ポリビニルブチラール、ナイロン
などの下引き層を設け、さらにその上に酸化亜鉛
感光層を塗布したものがよく知られている。 As shown in Fig. 1, conventional photoreceptors include:
A conductive layer is provided by laminating aluminum foil on a support such as Mylar film or by coating a paint containing a conductive agent, and on top of that, a subbing layer such as casein, polyvinyl alcohol, polyvinyl butyral, or nylon is provided. It is well known that a zinc oxide photosensitive layer is further coated thereon.
しかし、かかる感光体をトナーとキヤリヤーよ
り成る二成分現像方式の電子写真複写機に使用し
た場合、現像剤中のキヤリヤー粒子が感光体に突
きささり、キヤリヤー粒子が導電層に接触すると
現像バイアスがキヤリヤー粒子を通してリーク
し、いわゆるバイアス落ちの現象が発生し、カブ
リの原因となる。 However, when such a photoreceptor is used in an electrophotographic copying machine using a two-component development system consisting of toner and carrier, the carrier particles in the developer stick to the photoreceptor, and when the carrier particles come into contact with the conductive layer, the developing bias changes to the carrier. Leakage occurs through the particles, causing a so-called bias drop phenomenon, which causes fog.
この欠点を解決する方法として、導電層の抵抗
値を高くするとか、下引き層を厚く塗布すること
が考えられるが、いずれの方法も低湿度下におい
て電気抵抗が上昇し、カブリの原因となる。 Possible ways to solve this problem include increasing the resistance of the conductive layer or applying a thick undercoat layer, but either method increases the electrical resistance under low humidity, causing fog. .
本発明の目的は、上記のバイアス落ちをおこす
ことなく、かつ20％RH以下の低湿度においても
カブリのないコピーが得られる電子写真感光体を
得ることにある。 An object of the present invention is to obtain an electrophotographic photoreceptor that does not cause the bias drop described above and can produce fog-free copies even at low humidity of 20% RH or less.
すなわち本発明は、絶縁性支持体上に導電層、
下引き層、酸化亜鉛感光層を順次積層して成る電
子写真感光体において、導電層と下引き層との間
に体積固有抵抗が105〜1011Ωcm、厚さ１〜5μｍの
カーボンを樹脂中に分散した層（以下、カーボン
分散層と称する）を設けたことを特徴とする電子
写真感光体である。 That is, the present invention provides a conductive layer on an insulating support,
In an electrophotographic photoreceptor formed by sequentially laminating an undercoat layer and a zinc oxide photosensitive layer, a carbon resin having a volume resistivity of 10 5 to 10 11 Ωcm and a thickness of 1 to 5 μm is inserted between the conductive layer and the undercoat layer. This is an electrophotographic photoreceptor characterized by having a layer dispersed therein (hereinafter referred to as a carbon-dispersed layer).
次に本発明を実施例及び比較例により具体的に
説明する。 Next, the present invention will be specifically explained with reference to Examples and Comparative Examples.
実施例
厚さ75μｍのポリエステルに10μｍのアルミニ
ウム箔をラミネートして、この上にカーボン分散
層として次の塗料を厚さ2μｍになるよう塗布し
た。Example A 10 μm aluminum foil was laminated onto a 75 μm thick polyester, and the following paint was applied thereon to a thickness of 2 μm as a carbon dispersed layer.
カーボン分散層の塗料
アクリルエマルジヨン（50％） 100重量部
カーボン ４ 〃
カーボン分散層の体積固有抵抗は107Ωcmであ
り、この上にカゼインを2μｍの厚さに塗布し、
さらに酸化亜鉛を分散した感光層塗料を塗布し
て、表面電位450Vの電子写真感光体を作製した。
この感光体をシヤープ複写機SF740にかけて二成
分現像剤により1000枚の複写テストを行つた。 Paint for carbon dispersed layer Acrylic emulsion (50%) 100 parts by weight Carbon 4 The volume resistivity of the carbon dispersed layer is 10 7 Ωcm, and casein is applied to a thickness of 2 μm on top of this.
Furthermore, a photosensitive layer paint containing zinc oxide dispersed therein was applied to produce an electrophotographic photoreceptor with a surface potential of 450V.
This photoreceptor was subjected to a copying test of 1000 sheets using a two-component developer using a sharp copying machine SF740.
バイアス落ちは全く見られなかつた。 No bias drop was observed at all.
比較例
実施例１において、カーボン分散層を除いた他
は実施例１と同様にして電子写真感光体を作製
し、同様にして複写テストを行つたところ、1000
枚のコピーを行う間に頻繁にバイアス落ちが見ら
れた。Comparative Example An electrophotographic photoreceptor was prepared in the same manner as in Example 1 except that the carbon dispersion layer was removed, and a copying test was conducted in the same manner.
Bias drop was frequently observed while copying sheets.
以上の如く、本願発明は導電層と下引き層の間
にカーボン分散層を設けることにより、二成分現
像によるバイアス落ちのない電子写真感光体が得
られたものである。 As described above, the present invention provides an electrophotographic photoreceptor without bias drop due to two-component development by providing a carbon-dispersed layer between the conductive layer and the undercoat layer.
第１図は従来の電子写真感光体の断面を、第２
図は本発明の電子写真感光体の断面を示す図であ
る。
１……支持体、２……導電層、３……下引き
層、４……カーボン分散層、５……感光層。
Figure 1 shows a cross section of a conventional electrophotographic photoreceptor;
The figure is a diagram showing a cross section of the electrophotographic photoreceptor of the present invention. DESCRIPTION OF SYMBOLS 1... Support, 2... Conductive layer, 3... Undercoat layer, 4... Carbon dispersion layer, 5... Photosensitive layer.
Claims (1)
鉛感光層を順次積層して成る電子写真感光体にお
いて、導電層と下引き層との間に体積固有抵抗が
105〜1011Ωcm、厚さが１〜5μｍのカーボンを樹脂
中に分散した層を設けたことを特徴とする電子写
真感光体。1 In an electrophotographic photoreceptor formed by sequentially laminating a conductive layer, an undercoat layer, and a zinc oxide photosensitive layer on an insulating support, there is a volume resistivity between the conductive layer and the undercoat layer.
An electrophotographic photoreceptor comprising a layer of carbon dispersed in a resin having a resistance of 10 5 to 10 11 Ωcm and a thickness of 1 to 5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2720384A JPS60172048A (en) | 1984-02-17 | 1984-02-17 | Electrophotographic sensitive body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2720384A JPS60172048A (en) | 1984-02-17 | 1984-02-17 | Electrophotographic sensitive body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60172048A JPS60172048A (en) | 1985-09-05 |
| JPH0222374B2 true JPH0222374B2 (en) | 1990-05-18 |
Family
ID=12214533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2720384A Granted JPS60172048A (en) | 1984-02-17 | 1984-02-17 | Electrophotographic sensitive body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60172048A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04209831A (en) * | 1990-12-04 | 1992-07-31 | Murata Mach Ltd | Feeder for elastic yarn |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031361A1 (en) | 2010-09-10 | 2012-03-15 | Litens Automotive Partnership | Intelligent belt drive system and method |
-
1984
- 1984-02-17 JP JP2720384A patent/JPS60172048A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04209831A (en) * | 1990-12-04 | 1992-07-31 | Murata Mach Ltd | Feeder for elastic yarn |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60172048A (en) | 1985-09-05 |
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