JPS5494040A - Electrostatic image developer - Google Patents
Electrostatic image developerInfo
- Publication number
- JPS5494040A JPS5494040A JP32278A JP32278A JPS5494040A JP S5494040 A JPS5494040 A JP S5494040A JP 32278 A JP32278 A JP 32278A JP 32278 A JP32278 A JP 32278A JP S5494040 A JPS5494040 A JP S5494040A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- electrostatic latent
- latent image
- carrier
- generating means
- 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
Abstract
PURPOSE: To prevent the fog and to develop an electrostatic latent image in high fidelity by impressing a repulsive magnetic field from the back of a carrier in a non-contact development, in which an electrostatic latent image carrying surface is suitably spaced from a magnetic toner layer carrier.
CONSTITUTION: There is arranged at a spacing from the lower side of an electrostatic image holding surface 1 renning in the direction of arrow a toner layer carrier 12, which is made of a non-magnetic material in the form of an endless belt, at the back of which is arranged a repulsive magnetic field generating means 13. The toner 10, which is conveyed in the direction of arrow as a toner layer 11, while being caught by the carrier 12 by the frictional electrification and which is made to have a preset thickness by a regulating plate 20, is made nappy at a developing unit 15 by the action of the repulsive magnetic field generating means (or stationary magnet) 13 and is uniformly extended by the electric field of the electrostatic latent image so that it is moved to the electrostatic latent image portion of the image holding surface 1 thereby to develop the same. A magnet having a magnetic field of a surface magnetic flux density of 200 to 1100 Gauses is preferred for the aforementioned repulsive magnetic field generating means.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32278A JPS5494040A (en) | 1978-01-05 | 1978-01-05 | Electrostatic image developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32278A JPS5494040A (en) | 1978-01-05 | 1978-01-05 | Electrostatic image developer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5494040A true JPS5494040A (en) | 1979-07-25 |
Family
ID=11470661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32278A Pending JPS5494040A (en) | 1978-01-05 | 1978-01-05 | Electrostatic image developer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5494040A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60168177A (en) * | 1984-02-13 | 1985-08-31 | Fuji Xerox Co Ltd | One-component developing device |
JPH02167560A (en) * | 1989-09-11 | 1990-06-27 | Canon Inc | Insulative magnetic toner |
-
1978
- 1978-01-05 JP JP32278A patent/JPS5494040A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60168177A (en) * | 1984-02-13 | 1985-08-31 | Fuji Xerox Co Ltd | One-component developing device |
JPH02167560A (en) * | 1989-09-11 | 1990-06-27 | Canon Inc | Insulative magnetic toner |
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