JPS5778049A - Development method - Google Patents
Development methodInfo
- Publication number
- JPS5778049A JPS5778049A JP55154462A JP15446280A JPS5778049A JP S5778049 A JPS5778049 A JP S5778049A JP 55154462 A JP55154462 A JP 55154462A JP 15446280 A JP15446280 A JP 15446280A JP S5778049 A JPS5778049 A JP S5778049A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- sleeve
- electrostatic latent
- latent image
- particle diameter
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To make a developer stable against environmental change such as high temperature and high humidity in order to obtain a high image quality, by using a developer containing fine silicic acid powder synthesized by a wet method as the developer of an electrostatic latent image. CONSTITUTION:An insulating developer 11 is obtained by adding 0.01-20wt% fine silica powder having 0.01-2mum average primary particle diameter synthesized by a wet method to a toner consisting of 10-70wt% magnetic powder having 0.05- 5mum average particle diameter, a binder resin, and a colorant. A sleeve 4b for bearing a nonmagnetic developer provided with a nonrotating multipolar permanent magnet 9 in its inside is rotated in the arrow direction, the developer 11 fed from a hopper 12 is spread on the sleeve 4b, the developer 11 is given a charge reverse to the charge of an electrostatic latent image by friction between the sleeve 4b face and tone particles, and then, thickness of the developer 11 is made uniformly thin by a doctor blade 10. This sleeve 4b and an electrostatic latent image bearing drum 1 rotating in the arrow direction are arranged opposited to each other in the development part at a constant clearance apart, and the developer 11 is transferred to the drum 1 to execute development.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154462A JPS5778049A (en) | 1980-10-31 | 1980-10-31 | Development method |
DE19813142974 DE3142974A1 (en) | 1980-10-31 | 1981-10-29 | DEVELOPER FOR ELECTROPHOTOGRAPHIC PURPOSES AND DEVELOPMENT METHOD |
US06/518,317 US4430409A (en) | 1980-10-31 | 1983-07-29 | Developer for electrophotography with wet process silicic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154462A JPS5778049A (en) | 1980-10-31 | 1980-10-31 | Development method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5778049A true JPS5778049A (en) | 1982-05-15 |
JPS6251464B2 JPS6251464B2 (en) | 1987-10-30 |
Family
ID=15584763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55154462A Granted JPS5778049A (en) | 1980-10-31 | 1980-10-31 | Development method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5778049A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05188660A (en) * | 1992-01-16 | 1993-07-30 | Hitachi Metals Ltd | Developing method |
WO2015147208A1 (en) * | 2014-03-27 | 2015-10-01 | 日本ゼオン株式会社 | Toner for developing electrostatic charge image |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5448243A (en) * | 1977-09-26 | 1979-04-16 | Hitachi Metals Ltd | Magnetic toner |
-
1980
- 1980-10-31 JP JP55154462A patent/JPS5778049A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5448243A (en) * | 1977-09-26 | 1979-04-16 | Hitachi Metals Ltd | Magnetic toner |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05188660A (en) * | 1992-01-16 | 1993-07-30 | Hitachi Metals Ltd | Developing method |
WO2015147208A1 (en) * | 2014-03-27 | 2015-10-01 | 日本ゼオン株式会社 | Toner for developing electrostatic charge image |
CN106133612A (en) * | 2014-03-27 | 2016-11-16 | 日本瑞翁株式会社 | Electrostatic image developing toner |
US10495993B2 (en) | 2014-03-27 | 2019-12-03 | Zeon Corporation | Toner for developing electrostatic images |
Also Published As
Publication number | Publication date |
---|---|
JPS6251464B2 (en) | 1987-10-30 |
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