JPS5740267A - Coated carrier for electrophotographic developing - Google Patents
Coated carrier for electrophotographic developingInfo
- Publication number
- JPS5740267A JPS5740267A JP55115504A JP11550480A JPS5740267A JP S5740267 A JPS5740267 A JP S5740267A JP 55115504 A JP55115504 A JP 55115504A JP 11550480 A JP11550480 A JP 11550480A JP S5740267 A JPS5740267 A JP S5740267A
- Authority
- JP
- Japan
- Prior art keywords
- sno2
- carriers
- resin
- coating
- baso4
- 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
- G03G9/1139—Inorganic components of coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To make the life of a developer longer and its stability higher by coating carriers with a resin contg. powder of SnO2, Sn-TiO2 or SnO2-BaSO4 alone or their composite powders. CONSTITUTION:A coating resin such as fluororesin, styrene-butadiene copolymer resin or the like and finely divided particles of tin oxide type such as SnO2, Sn- TiO2 or SnO2-BaSO4 alone or their composite are compounded for example at 0.1- 10pts.wt. to 100pts.wt., the coating resin, and the mixture is dispersed in a solvent such as toluene or xylene. The dispersion is coated on carriers and is dried. Thereby, the resistance value of the coating resin is lowered, the life of the developer is made longer and the stable carriers are obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55115504A JPS5740267A (en) | 1980-08-22 | 1980-08-22 | Coated carrier for electrophotographic developing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55115504A JPS5740267A (en) | 1980-08-22 | 1980-08-22 | Coated carrier for electrophotographic developing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5740267A true JPS5740267A (en) | 1982-03-05 |
Family
ID=14664149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55115504A Pending JPS5740267A (en) | 1980-08-22 | 1980-08-22 | Coated carrier for electrophotographic developing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5740267A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61204643A (en) * | 1985-03-08 | 1986-09-10 | Ricoh Co Ltd | Carrier for electrostatic latent image developer |
US6500595B1 (en) | 1999-10-20 | 2002-12-31 | Ricoh Company, Ltd. | Carrier for electrophotographic developer, method for manufacturing the carrier, and coating liquid for the method |
US6904244B2 (en) | 2001-11-26 | 2005-06-07 | Ricoh Company, Ltd | Developing device for suppressing variations in bulk density of developer, and an image forming apparatus including the developing device |
EP1621935A2 (en) * | 2004-07-29 | 2006-02-01 | Ricoh Company, Ltd. | Carrier, developer, image forming method and process cartridge |
US7020421B2 (en) | 2002-12-27 | 2006-03-28 | Ricoh Company, Ltd. | Magnetic carrier, two-component developer, development method, development device and image forming apparatus of electrophotography |
US7226713B2 (en) | 2003-01-31 | 2007-06-05 | Ricoh Company, Ltd. | Carrier, developer including the carrier and image forming apparatus using the developer |
US7384719B2 (en) | 2004-03-02 | 2008-06-10 | Ricoh Company Ltd. | Carrier, developer including the carrier, and image forming apparatus using the developer |
EP1965261A2 (en) | 2007-03-02 | 2008-09-03 | Ricoh Company, Ltd. | Toner for developing electrostatic image, method for producing the toner, image forming method, image forming apparatus and process cartridge using the toner |
US7527908B2 (en) | 2005-04-06 | 2009-05-05 | Ricoh Company, Ltd. | Carrier, developer, developer container, image forming method and process cartridge |
US7553598B2 (en) | 2005-03-18 | 2009-06-30 | Ricoh Company, Limited | Electrophotographic carrier, developer, developer container, process cartridge, image forming apparatus and image forming method |
EP2090934A1 (en) | 2008-02-13 | 2009-08-19 | Ricoh Company, Ltd. | Carrier, two-component developer containing carrier and toner, and image forming method |
US7592116B2 (en) | 2004-11-12 | 2009-09-22 | Ricoh Company, Ltd. | Indium-containing carrier for electrophotography, developer using the same, and developer container |
US8247150B2 (en) | 2008-09-17 | 2012-08-21 | Ricoh Company, Ltd. | Carrier for developing electrostatic latent image, two-component developer, supplemental developer, process cartridge, and image forming method |
US8247149B2 (en) | 2007-12-03 | 2012-08-21 | Ricoh Company, Ltd. | Electrophotographic developer carrier, electrophotographic developer, image forming method, process cartridge and image forming apparatus |
US8263302B2 (en) | 2008-09-11 | 2012-09-11 | Ricoh Company, Ltd. | Carrier for electrophotography and two-component developer |
US8512929B2 (en) | 2009-09-14 | 2013-08-20 | Ricoh Company, Ltd. | Latent electrostatic image developing carrier, two-component developer and image forming method |
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 |
US10444651B2 (en) | 2017-03-17 | 2019-10-15 | Ricoh Company, Ltd. | Carrier, developer, supplemental developer, image forming apparatus, image forming method, 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 |
US11106150B2 (en) | 2018-11-22 | 2021-08-31 | Ricoh Company, Ltd. | Carrier, developer, method, and apparatus for forming electrophotographic image, and process cartridge |
-
1980
- 1980-08-22 JP JP55115504A patent/JPS5740267A/en active Pending
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61204643A (en) * | 1985-03-08 | 1986-09-10 | Ricoh Co Ltd | Carrier for electrostatic latent image developer |
US6500595B1 (en) | 1999-10-20 | 2002-12-31 | Ricoh Company, Ltd. | Carrier for electrophotographic developer, method for manufacturing the carrier, and coating liquid for the method |
US7003235B2 (en) | 2001-11-26 | 2006-02-21 | Ricoh Company, Ltd. | Developing device for suppressing variations in bulk density of developer, and an image forming apparatus including the developing device |
US6904244B2 (en) | 2001-11-26 | 2005-06-07 | Ricoh Company, Ltd | Developing device for suppressing variations in bulk density of developer, and an image forming apparatus including the developing device |
US7474867B2 (en) | 2002-12-27 | 2009-01-06 | Ricoh Company, Ltd. | Magnetic carrier, two-component developer, development method, development device and image forming apparatus of electrophotography |
US7020421B2 (en) | 2002-12-27 | 2006-03-28 | Ricoh Company, Ltd. | Magnetic carrier, two-component developer, development method, development device and image forming apparatus of electrophotography |
US7226713B2 (en) | 2003-01-31 | 2007-06-05 | Ricoh Company, Ltd. | Carrier, developer including the carrier and image forming apparatus using the developer |
US7272347B2 (en) | 2003-01-31 | 2007-09-18 | Ricoh Company, Ltd. | Carrier, developer including the carrier, and image forming apparatus using the developer |
US7384719B2 (en) | 2004-03-02 | 2008-06-10 | Ricoh Company Ltd. | Carrier, developer including the carrier, and image forming apparatus using the developer |
US7381513B2 (en) | 2004-07-29 | 2008-06-03 | Ricoh Company, Ltd. | Carrier, developer, image forming method and process cartridge for electrostatic image development |
EP1621935A2 (en) * | 2004-07-29 | 2006-02-01 | Ricoh Company, Ltd. | Carrier, developer, image forming method and process cartridge |
EP1621935A3 (en) * | 2004-07-29 | 2006-03-15 | Ricoh Company, Ltd. | Carrier, developer, image forming method and process cartridge |
US7592116B2 (en) | 2004-11-12 | 2009-09-22 | Ricoh Company, Ltd. | Indium-containing carrier for electrophotography, developer using the same, and developer container |
US7553598B2 (en) | 2005-03-18 | 2009-06-30 | Ricoh Company, Limited | Electrophotographic carrier, developer, developer container, process cartridge, image forming apparatus and image forming method |
US7527908B2 (en) | 2005-04-06 | 2009-05-05 | Ricoh Company, Ltd. | Carrier, developer, developer container, image forming method and process cartridge |
EP1965261A2 (en) | 2007-03-02 | 2008-09-03 | Ricoh Company, Ltd. | Toner for developing electrostatic image, method for producing the toner, image forming method, image forming apparatus and process cartridge using the toner |
US8247149B2 (en) | 2007-12-03 | 2012-08-21 | Ricoh Company, Ltd. | Electrophotographic developer carrier, electrophotographic developer, image forming method, process cartridge and image forming apparatus |
EP2090934A1 (en) | 2008-02-13 | 2009-08-19 | Ricoh Company, Ltd. | Carrier, two-component developer containing carrier and toner, and image forming method |
US8263302B2 (en) | 2008-09-11 | 2012-09-11 | Ricoh Company, Ltd. | Carrier for electrophotography and two-component developer |
US8247150B2 (en) | 2008-09-17 | 2012-08-21 | Ricoh Company, Ltd. | Carrier for developing electrostatic latent image, two-component developer, supplemental developer, process cartridge, and image forming method |
US8512929B2 (en) | 2009-09-14 | 2013-08-20 | Ricoh Company, Ltd. | Latent electrostatic image developing carrier, two-component developer and image forming method |
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 |
US10444651B2 (en) | 2017-03-17 | 2019-10-15 | Ricoh Company, Ltd. | Carrier, developer, supplemental developer, image forming apparatus, image forming method, 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 |
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 |
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