JPS55133057A - Developing method of electrostatic latent image - Google Patents
Developing method of electrostatic latent imageInfo
- Publication number
- JPS55133057A JPS55133057A JP4045979A JP4045979A JPS55133057A JP S55133057 A JPS55133057 A JP S55133057A JP 4045979 A JP4045979 A JP 4045979A JP 4045979 A JP4045979 A JP 4045979A JP S55133057 A JPS55133057 A JP S55133057A
- Authority
- JP
- Japan
- Prior art keywords
- latent image
- electrostatic latent
- electric field
- increased
- bias voltage
- 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
Landscapes
- Developing For Electrophotography (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
PURPOSE: To achieve the reduction in edge effect and photographic fog by polarizing conductive magnetic toners by the electric field with the combination of AC bias voltage and electrostatic latent image voltage.
CONSTITUTION: The conductive magnetic toners 6...supported to a magnet 5 are polarized according to the magnetic field with the combination of the AC bias voltage by tha bias current applied to the magnet and the electrostatic latent image voltage formed to an electrostatic latent image substrate 3. The spacial gradients of this electric field are increased in all the positions of the latent image by the AC bias voltage and the suction force acting upon the toner 6 is increased in the portions where the electric field opposing to the image part is strong and these results in increased image density, reduced edge effect, and reduced occurrence of photographic fog in the nonimage portions where the toners become difficult to be suched. The good development is thereby accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4045979A JPS55133057A (en) | 1979-04-04 | 1979-04-04 | Developing method of electrostatic latent image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4045979A JPS55133057A (en) | 1979-04-04 | 1979-04-04 | Developing method of electrostatic latent image |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55133057A true JPS55133057A (en) | 1980-10-16 |
Family
ID=12581220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4045979A Pending JPS55133057A (en) | 1979-04-04 | 1979-04-04 | Developing method of electrostatic latent image |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55133057A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5764254A (en) * | 1980-10-07 | 1982-04-19 | Ricoh Co Ltd | Developing method of electrostatic latent image |
JPS58144863A (en) * | 1982-02-23 | 1983-08-29 | Toshiba Corp | Magnetic brush developing apparatus |
US4496644A (en) * | 1983-02-28 | 1985-01-29 | Eastman Kodak Company | Electric field adjustment for magnetic brushes |
-
1979
- 1979-04-04 JP JP4045979A patent/JPS55133057A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5764254A (en) * | 1980-10-07 | 1982-04-19 | Ricoh Co Ltd | Developing method of electrostatic latent image |
JPS58144863A (en) * | 1982-02-23 | 1983-08-29 | Toshiba Corp | Magnetic brush developing apparatus |
US4496644A (en) * | 1983-02-28 | 1985-01-29 | Eastman Kodak Company | Electric field adjustment for magnetic brushes |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5518656A (en) | Electrophotographic developing method | |
JPS57128365A (en) | Powder image transfer type electronic copier | |
JPS55118048A (en) | Method and apparatus for developing | |
JPS55133057A (en) | Developing method of electrostatic latent image | |
JPS57114163A (en) | Developing device | |
JPS536040A (en) | Manufacture of insulating magnetic toner for electrostatic development | |
JPS5659244A (en) | Electrostatic latent image developing method | |
JPS5614268A (en) | Developing method | |
JPS5498248A (en) | Development apparatus for static latent image | |
JPS55144255A (en) | Developing method and its apparatus | |
JPS51138442A (en) | Magnetic toner | |
JPS5573068A (en) | Magnetic brush developing device | |
JPS56137359A (en) | Developing method of electrostatic latent image | |
JPS54143238A (en) | Developing process | |
JPS57177170A (en) | Developing device of electrophotographic copying machine | |
JPS5258546A (en) | Development device for electrophotography | |
JPS56135849A (en) | Electrophotographic developing method | |
JPS5532059A (en) | Method and apparatus for electrophotographic developing | |
JPS55115064A (en) | Electrostatic developing method | |
JPS5635156A (en) | Developing method | |
JPS54143641A (en) | Developing method | |
JPS55144254A (en) | Developing method and its apparatus | |
JPS51133026A (en) | Electrophotographic developing method | |
JPS5569156A (en) | Recording method | |
JPS56161563A (en) | Normal and reversal copying method |