JPS5675659A - Carrier material - Google Patents
Carrier materialInfo
- Publication number
- JPS5675659A JPS5675659A JP15326279A JP15326279A JPS5675659A JP S5675659 A JPS5675659 A JP S5675659A JP 15326279 A JP15326279 A JP 15326279A JP 15326279 A JP15326279 A JP 15326279A JP S5675659 A JPS5675659 A JP S5675659A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- resin
- toner
- carbon black
- surface area
- 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
Abstract
PURPOSE: To provide a carrier of a long life for the magnetic brush developer, which gives adequate charging amount to the toner by containing a specific amount of porous carbon black having more than specific value of surface area and oil absorption amount in a binder resin.
CONSTITUTION: The carrier contg. 3W50pts.wt. of the porous carbon black of ≥850m2/g in surface area by an N2 adsorption method and ≥280ml/100g in DBP (dibutyl phthalate) oil absorption amount based on 100pts.wt. resin (one or more kinds of thermosetting type acrylic resin, polyamide resin, etcl) is made. Iron powder, glass, etc. are used for the core of this carrier. This carrier gives good charging to the toner, has less change in the surface state of the carrier owing to friction, is long in life and gives good images.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15326279A JPS5675659A (en) | 1979-11-27 | 1979-11-27 | Carrier material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15326279A JPS5675659A (en) | 1979-11-27 | 1979-11-27 | Carrier material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5675659A true JPS5675659A (en) | 1981-06-22 |
JPS6245984B2 JPS6245984B2 (en) | 1987-09-30 |
Family
ID=15558601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15326279A Granted JPS5675659A (en) | 1979-11-27 | 1979-11-27 | Carrier material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5675659A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60159753A (en) * | 1984-01-31 | 1985-08-21 | Ricoh Co Ltd | Carrier for developing electrostatic latent image |
JPS63281173A (en) * | 1987-05-14 | 1988-11-17 | Ricoh Co Ltd | Carrier for dry developer |
JPS63309969A (en) * | 1987-06-11 | 1988-12-19 | Fuji Elelctrochem Co Ltd | Electrostatic latent image developing toner |
JPH01105264A (en) * | 1987-07-27 | 1989-04-21 | Ricoh Co Ltd | Carrier for developing electrostatic latent image |
JPH01209455A (en) * | 1988-02-17 | 1989-08-23 | Mitsubishi Kasei Corp | Electrophotographic developer |
JPH01211770A (en) * | 1988-02-19 | 1989-08-24 | Mitsubishi Kasei Corp | Electrophotographic developer |
JPH021874A (en) * | 1988-06-10 | 1990-01-08 | Sharp Corp | Electrophotographic toner |
JPH02296256A (en) * | 1989-04-24 | 1990-12-06 | Xerox Corp | Dichromatic image formation |
US6040102A (en) * | 1996-12-05 | 2000-03-21 | Fuji Xerox Co., Ltd. | Electrostatic latent image developer and image forming method |
US6387582B2 (en) | 2000-03-24 | 2002-05-14 | Powdertech Co., Ltd. | Carrier for electrophotographic developer and electrophotographic developer containing the same |
US10025214B2 (en) | 2015-12-28 | 2018-07-17 | Ricoh Company, Ltd. | Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge |
US10234782B2 (en) | 2017-05-09 | 2019-03-19 | Kyocera Document Solutions Inc. | Electrostatic latent image developing carrier |
WO2021094957A1 (en) | 2019-11-15 | 2021-05-20 | Ricoh Company, Ltd. | Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge |
US11106150B2 (en) | 2018-11-22 | 2021-08-31 | Ricoh Company, Ltd. | Carrier, developer, method, and apparatus for forming electrophotographic image, and process cartridge |
US11835921B2 (en) | 2020-09-29 | 2023-12-05 | Kyocera Document Solutions Inc. | Carrier and two-component developer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS536535A (en) * | 1976-07-08 | 1978-01-21 | Matsushita Electric Ind Co Ltd | Television projector |
-
1979
- 1979-11-27 JP JP15326279A patent/JPS5675659A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS536535A (en) * | 1976-07-08 | 1978-01-21 | Matsushita Electric Ind Co Ltd | Television projector |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60159753A (en) * | 1984-01-31 | 1985-08-21 | Ricoh Co Ltd | Carrier for developing electrostatic latent image |
JPS63281173A (en) * | 1987-05-14 | 1988-11-17 | Ricoh Co Ltd | Carrier for dry developer |
JPS63309969A (en) * | 1987-06-11 | 1988-12-19 | Fuji Elelctrochem Co Ltd | Electrostatic latent image developing toner |
JPH01105264A (en) * | 1987-07-27 | 1989-04-21 | Ricoh Co Ltd | Carrier for developing electrostatic latent image |
JPH01209455A (en) * | 1988-02-17 | 1989-08-23 | Mitsubishi Kasei Corp | Electrophotographic developer |
JPH01211770A (en) * | 1988-02-19 | 1989-08-24 | Mitsubishi Kasei Corp | Electrophotographic developer |
JPH021874A (en) * | 1988-06-10 | 1990-01-08 | Sharp Corp | Electrophotographic toner |
JPH02296256A (en) * | 1989-04-24 | 1990-12-06 | Xerox Corp | Dichromatic image formation |
US6040102A (en) * | 1996-12-05 | 2000-03-21 | Fuji Xerox Co., Ltd. | Electrostatic latent image developer and image forming method |
US6387582B2 (en) | 2000-03-24 | 2002-05-14 | Powdertech Co., Ltd. | Carrier for electrophotographic developer and electrophotographic developer containing the same |
US10025214B2 (en) | 2015-12-28 | 2018-07-17 | Ricoh Company, Ltd. | Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge |
US10234782B2 (en) | 2017-05-09 | 2019-03-19 | Kyocera Document Solutions Inc. | Electrostatic latent image developing carrier |
US11106150B2 (en) | 2018-11-22 | 2021-08-31 | Ricoh Company, Ltd. | Carrier, developer, method, and apparatus for forming electrophotographic image, and process cartridge |
WO2021094957A1 (en) | 2019-11-15 | 2021-05-20 | Ricoh Company, Ltd. | Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge |
US11835921B2 (en) | 2020-09-29 | 2023-12-05 | Kyocera Document Solutions Inc. | Carrier and two-component developer |
Also Published As
Publication number | Publication date |
---|---|
JPS6245984B2 (en) | 1987-09-30 |
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