JPS5526501A - Carrier for powder developing - Google Patents
Carrier for powder developingInfo
- Publication number
- JPS5526501A JPS5526501A JP9311078A JP9311078A JPS5526501A JP S5526501 A JPS5526501 A JP S5526501A JP 9311078 A JP9311078 A JP 9311078A JP 9311078 A JP9311078 A JP 9311078A JP S5526501 A JPS5526501 A JP S5526501A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- coating resin
- carrier
- ferromagnetic powder
- polybutadiene
- 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.)
- Granted
Links
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To produce the carrier for powder development which does not cause fusion with toner during use and is long in life by covering the surfaces of ferromagnetic powder with the coating resin composed primarily of polybutadiene.
CONSTITUTION: Ferromagnetic powder (e.g., iron powder) of about 30 to 500μ in particle size is coated to about thicknesses 0.3 to 20μ by the coating resin in which polybutadiene content is above 90%. The coating operations involve dissolving the abovementioned coating resin in a solvent (e.g., trichloroethylene), dipping ferromagnetic powder in the solution thus prepared then heating the powder to about 100 to 180°C to cause crosslinking of the coating resin, thereby forming the firm film.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9311078A JPS5526501A (en) | 1978-08-01 | 1978-08-01 | Carrier for powder developing |
DE2931087A DE2931087C2 (en) | 1978-08-01 | 1979-07-31 | Electrostatographic developer material |
US06/232,805 US4455361A (en) | 1978-08-01 | 1981-02-09 | Process for preparing developer materials for electrostatic images |
US06/320,609 US4513075A (en) | 1978-08-01 | 1981-11-12 | Developer materials for electrostatic images |
US06/501,800 US4522909A (en) | 1978-08-01 | 1983-06-07 | Process for preparing electrostatic developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9311078A JPS5526501A (en) | 1978-08-01 | 1978-08-01 | Carrier for powder developing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5526501A true JPS5526501A (en) | 1980-02-26 |
JPS6249620B2 JPS6249620B2 (en) | 1987-10-20 |
Family
ID=14073376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9311078A Granted JPS5526501A (en) | 1978-08-01 | 1978-08-01 | Carrier for powder developing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5526501A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56122043A (en) * | 1980-02-29 | 1981-09-25 | Canon Inc | Covered carrier |
JPS5770544A (en) * | 1980-10-20 | 1982-05-01 | Fujitsu Ltd | Carrier particle for developer |
JPS58113945A (en) * | 1981-12-26 | 1983-07-07 | Fujitsu Ltd | Carrier for dry developer |
JPS5957250A (en) * | 1982-09-27 | 1984-04-02 | Fujitsu Ltd | Magnetic brush developer for laser printer |
JPS59128557A (en) * | 1983-01-14 | 1984-07-24 | Fujitsu Ltd | Powdered developer used for laser printer |
JPS61123859A (en) * | 1984-11-20 | 1986-06-11 | Fujitsu Ltd | Electrophotographic carrier |
JP2014106358A (en) * | 2012-11-27 | 2014-06-09 | Fuji Xerox Co Ltd | Carrier for electrostatic charge image development, electrostatic charge image developer, process cartridge, and image forming apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH021423U (en) * | 1988-06-13 | 1990-01-08 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2753308A (en) * | 1952-12-22 | 1956-07-03 | Haloid Co | Xerography developer composition |
-
1978
- 1978-08-01 JP JP9311078A patent/JPS5526501A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2753308A (en) * | 1952-12-22 | 1956-07-03 | Haloid Co | Xerography developer composition |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56122043A (en) * | 1980-02-29 | 1981-09-25 | Canon Inc | Covered carrier |
JPS5770544A (en) * | 1980-10-20 | 1982-05-01 | Fujitsu Ltd | Carrier particle for developer |
JPS58113945A (en) * | 1981-12-26 | 1983-07-07 | Fujitsu Ltd | Carrier for dry developer |
JPS5957250A (en) * | 1982-09-27 | 1984-04-02 | Fujitsu Ltd | Magnetic brush developer for laser printer |
JPS6246856B2 (en) * | 1982-09-27 | 1987-10-05 | Fujitsu Ltd | |
JPS59128557A (en) * | 1983-01-14 | 1984-07-24 | Fujitsu Ltd | Powdered developer used for laser printer |
JPS6355060B2 (en) * | 1983-01-14 | 1988-11-01 | Fujitsu Ltd | |
JPS61123859A (en) * | 1984-11-20 | 1986-06-11 | Fujitsu Ltd | Electrophotographic carrier |
JP2014106358A (en) * | 2012-11-27 | 2014-06-09 | Fuji Xerox Co Ltd | Carrier for electrostatic charge image development, electrostatic charge image developer, process cartridge, and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6249620B2 (en) | 1987-10-20 |
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