JPS5714852A - Carrier for electrophotographic dry type developer - Google Patents
Carrier for electrophotographic dry type developerInfo
- Publication number
- JPS5714852A JPS5714852A JP8912480A JP8912480A JPS5714852A JP S5714852 A JPS5714852 A JP S5714852A JP 8912480 A JP8912480 A JP 8912480A JP 8912480 A JP8912480 A JP 8912480A JP S5714852 A JPS5714852 A JP S5714852A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- acid
- photoreceptor
- org
- toner
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
- G03G9/1138—Non-macromolecular organic components of coatings
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To facilitate (+) charging of a toner and prevent FP fragments from sticking on the surface of a photoreceptor and forming a thin film by treating the surfaces of carrier particles coated with fluoropolymer (FP) by means of an org. acid having carbon fluoride groups. CONSTITUTION:Carrier particles coated with a (co)polymer such as CF2=CF2 are immersed in a methanol soln. of the org. acid (an aromatic acid of which H of benzene nuclei or the like is substituted by C9H17SO3H, C9H17COOH, C9H17O groups or the like) having carbon fluoride groups expressed by formulas I, II, after which they are removed and the solvent is evaporated, whereby the surface treated carrier is obtained. This carrier can sufficiently charge the toner to (+) with weak agitating of a short time, and prevents the stripping of FP, the sticking thereof on the surface of a photoreceptor to form a thin film, and the consequent development defect of latent images and the formation of white streaks in copied images. In this way, more than tens of thousands of copied images are obtained continuously without the above-described drawbacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8912480A JPS5714852A (en) | 1980-07-02 | 1980-07-02 | Carrier for electrophotographic dry type developer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8912480A JPS5714852A (en) | 1980-07-02 | 1980-07-02 | Carrier for electrophotographic dry type developer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5714852A true JPS5714852A (en) | 1982-01-26 |
Family
ID=13962130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8912480A Pending JPS5714852A (en) | 1980-07-02 | 1980-07-02 | Carrier for electrophotographic dry type developer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5714852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6051347U (en) * | 1983-09-19 | 1985-04-11 | 長田電機工業株式会社 | Output compensation device for bearing type transmission |
| US9817327B2 (en) | 2015-09-30 | 2017-11-14 | Canon Kabushiki Kaisha | Toner |
-
1980
- 1980-07-02 JP JP8912480A patent/JPS5714852A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6051347U (en) * | 1983-09-19 | 1985-04-11 | 長田電機工業株式会社 | Output compensation device for bearing type transmission |
| JPH0131805Y2 (en) * | 1983-09-19 | 1989-09-29 | ||
| US9817327B2 (en) | 2015-09-30 | 2017-11-14 | Canon Kabushiki Kaisha | Toner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5790648A (en) | Production of lithographic printing method and photosensitive material for lithographic printing for use in said method | |
| NO853759L (en) | PROCESS OF COLOR ELECTROPOTOGRAPHY. | |
| JPS576856A (en) | Developing method | |
| ATE5350T1 (en) | PROCESS FOR THE PRODUCTION OF A PLANTFORM BY ELECTROPHOTOGRAPHIC MEANS. | |
| JPS5714852A (en) | Carrier for electrophotographic dry type developer | |
| JPS604460B2 (en) | liquid developer composition | |
| JPS5732456A (en) | Copy printing method | |
| JPS54109842A (en) | Information recorder | |
| JPS5587173A (en) | Multicolor developing method | |
| JPS55111971A (en) | Developing method | |
| JPS55134874A (en) | Developing method of electrostatic latent image | |
| JPS5794770A (en) | Cleaning method of electrophotographic photoreceptor | |
| JPS55130557A (en) | Method and apparatus for forming color image | |
| JPS56106252A (en) | Developing method | |
| JPS55159467A (en) | Photographic fog removing device of electrophotographic copier | |
| JPS54136334A (en) | Electrophotographic image formation process by simultaneous static latent image transfer system | |
| JPS5746262A (en) | Method for electrostatic printing | |
| JPS5492245A (en) | High positive chargeability carrier | |
| JPS566255A (en) | Electrophotographic apparatus | |
| JPS566251A (en) | Electrophotographic method | |
| JPS5723952A (en) | Bicolor electrophotographic method | |
| JPS57186775A (en) | Developing method of picture reproducing method | |
| JPS56156849A (en) | Method and device for regular copying and reversal copying | |
| JPS5786838A (en) | Electronic copying method | |
| JPS5774767A (en) | Electrophotographic device |