JPS55120041A - Magnetic developer - Google Patents
Magnetic developerInfo
- Publication number
- JPS55120041A JPS55120041A JP2732679A JP2732679A JPS55120041A JP S55120041 A JPS55120041 A JP S55120041A JP 2732679 A JP2732679 A JP 2732679A JP 2732679 A JP2732679 A JP 2732679A JP S55120041 A JPS55120041 A JP S55120041A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- developer
- particle size
- silicon dioxide
- image
- 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 obtain an insulating magnetic developer capable of forming a fog-free clear image of high density by blending specified silicon dioxide particles into an insulating magnetic toner.
CONSTITUTION: About 0.01W2, preferably 0.05W1pts.wt. of trimethylsiloxyl group-containing silicon dioxide particles with a particle size of about 5W20mμ is blended into 100pts. of toner particels based on particles with a particle size of about 5W20μ and made of mixture of magnetic powder such as magnetite or ferrite powder and a binding resin such as styrene type resin, acrylic resin or waxes. The resulting magnetic developer is held on a developer support set away from an electrostatic image retentive body, and it is transferred onto the body by the action of a magnetic field to develop the body. By this method an image of high resolving power can be formed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2732679A JPS55120041A (en) | 1979-03-09 | 1979-03-09 | Magnetic developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2732679A JPS55120041A (en) | 1979-03-09 | 1979-03-09 | Magnetic developer |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61204921A Division JPS6270867A (en) | 1986-08-29 | 1986-08-29 | Method for developing electrostatically charged image |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55120041A true JPS55120041A (en) | 1980-09-16 |
JPS638461B2 JPS638461B2 (en) | 1988-02-23 |
Family
ID=12217941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2732679A Granted JPS55120041A (en) | 1979-03-09 | 1979-03-09 | Magnetic developer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55120041A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58185405A (en) * | 1982-04-26 | 1983-10-29 | Nippon Aerojiru Kk | Fine powder of surface-modified metal oxide |
JPS59137305A (en) * | 1983-01-27 | 1984-08-07 | Nippon Aerojiru Kk | Surface-modified fine metallic oxide powder |
US4555467A (en) * | 1981-03-10 | 1985-11-26 | Canon Kabushiki Kaisha | Developer having improved flow characteristics and a process for producing same |
US5066558A (en) * | 1988-09-30 | 1991-11-19 | Canon Kabushiki Kaisha | Developer for developing electrostatic images |
US5480755A (en) * | 1991-03-08 | 1996-01-02 | Canon Kabushiki Kaisha | Magnetic toner, image forming method, surface-modified fine silica powder and process for its production |
WO2009123329A1 (en) | 2008-03-31 | 2009-10-08 | キヤノン株式会社 | Toner and image formation method |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US890973A (en) * | 1904-05-23 | 1908-06-16 | Padone Filippi | Ship's propeller. |
JPS5331136A (en) * | 1976-06-30 | 1978-03-24 | Minnesota Mining & Mfg | Method of selectively attaching toner particles on surface of material |
JPS5359430A (en) * | 1976-06-09 | 1978-05-29 | Konishiroku Photo Ind Co Ltd | Electrostatic latent image developer |
JPS5359340A (en) * | 1976-11-09 | 1978-05-29 | Omron Tateisi Electronics Co | Poll information processor |
JPS53133446A (en) * | 1977-04-27 | 1978-11-21 | Canon Inc | Developer for magnetic brush |
JPS53143326A (en) * | 1977-05-18 | 1978-12-13 | Eastman Kodak Co | Developing agent for use in forming visible picture and method thereof |
JPS542743A (en) * | 1977-06-08 | 1979-01-10 | Canon Inc | Toner for static image and its manufacture |
JPS542742A (en) * | 1977-06-08 | 1979-01-10 | Canon Inc | Manufacture of toner for developing static image |
JPS54151451A (en) * | 1978-03-28 | 1979-11-28 | Du Pont | Particulate resist composition |
-
1979
- 1979-03-09 JP JP2732679A patent/JPS55120041A/en active Granted
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US890973A (en) * | 1904-05-23 | 1908-06-16 | Padone Filippi | Ship's propeller. |
JPS5359430A (en) * | 1976-06-09 | 1978-05-29 | Konishiroku Photo Ind Co Ltd | Electrostatic latent image developer |
JPS5331136A (en) * | 1976-06-30 | 1978-03-24 | Minnesota Mining & Mfg | Method of selectively attaching toner particles on surface of material |
JPS5359340A (en) * | 1976-11-09 | 1978-05-29 | Omron Tateisi Electronics Co | Poll information processor |
JPS53133446A (en) * | 1977-04-27 | 1978-11-21 | Canon Inc | Developer for magnetic brush |
JPS53143326A (en) * | 1977-05-18 | 1978-12-13 | Eastman Kodak Co | Developing agent for use in forming visible picture and method thereof |
JPS542743A (en) * | 1977-06-08 | 1979-01-10 | Canon Inc | Toner for static image and its manufacture |
JPS542742A (en) * | 1977-06-08 | 1979-01-10 | Canon Inc | Manufacture of toner for developing static image |
JPS54151451A (en) * | 1978-03-28 | 1979-11-28 | Du Pont | Particulate resist composition |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4555467A (en) * | 1981-03-10 | 1985-11-26 | Canon Kabushiki Kaisha | Developer having improved flow characteristics and a process for producing same |
JPS58185405A (en) * | 1982-04-26 | 1983-10-29 | Nippon Aerojiru Kk | Fine powder of surface-modified metal oxide |
JPH0131442B2 (en) * | 1982-04-26 | 1989-06-26 | Nippon Aerojiru Kk | |
JPS59137305A (en) * | 1983-01-27 | 1984-08-07 | Nippon Aerojiru Kk | Surface-modified fine metallic oxide powder |
JPH0132161B2 (en) * | 1983-01-27 | 1989-06-29 | Nippon Aerojiru Kk | |
US5066558A (en) * | 1988-09-30 | 1991-11-19 | Canon Kabushiki Kaisha | Developer for developing electrostatic images |
US5480755A (en) * | 1991-03-08 | 1996-01-02 | Canon Kabushiki Kaisha | Magnetic toner, image forming method, surface-modified fine silica powder and process for its production |
WO2009123329A1 (en) | 2008-03-31 | 2009-10-08 | キヤノン株式会社 | Toner and image formation method |
US7704661B2 (en) | 2008-03-31 | 2010-04-27 | Canon Kabushiki Kaisha | Toner and image forming method |
Also Published As
Publication number | Publication date |
---|---|
JPS638461B2 (en) | 1988-02-23 |
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