JPS5794767A - Developing device for electrostatic latent image - Google Patents
Developing device for electrostatic latent imageInfo
- Publication number
- JPS5794767A JPS5794767A JP17130780A JP17130780A JPS5794767A JP S5794767 A JPS5794767 A JP S5794767A JP 17130780 A JP17130780 A JP 17130780A JP 17130780 A JP17130780 A JP 17130780A JP S5794767 A JPS5794767 A JP S5794767A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- electric charge
- development
- plate
- developer
- 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
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
PURPOSE:To improve not only the developing performance but the conveying performance of the developer for single-component magnetic development, by applying the electric charge to the developer by means of an AC electric charging device before development. CONSTITUTION:A hopper 21 for magnetic toner having a conductive side plate 26 and connected to an AC power supply 29 is provided on a rotatable cylindrical nonmagnetic matter sleeve 23 which contains a rotatable magnet 25. The plate 26 is covered with a covering material 31 made of an insulated member or a semiinsulated member at the side of the nonmagnetic matter 23. Thus the injection is controlled for the electric charge which is supplied from the side of the plate 26. When the AC voltage is applied, the toner receives the injection of the electric charge from the grounded sleeve 23 to be charged to 10 and 1 alternately. Thus these electric charge and the toner are stirred and mixed up in the course of the conveying. The conditions of development can be changed by varying the voltage of application and the frequency. The electric charging of the toner is possible if no material 31 is used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17130780A JPS5794767A (en) | 1980-12-04 | 1980-12-04 | Developing device for electrostatic latent image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17130780A JPS5794767A (en) | 1980-12-04 | 1980-12-04 | Developing device for electrostatic latent image |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5794767A true JPS5794767A (en) | 1982-06-12 |
Family
ID=15920842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17130780A Pending JPS5794767A (en) | 1980-12-04 | 1980-12-04 | Developing device for electrostatic latent image |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5794767A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153661A (en) * | 1984-08-24 | 1986-03-17 | Fuji Xerox Co Ltd | Contact developing method using insulating magnetic one-component developer |
EP0459780A2 (en) * | 1990-05-30 | 1991-12-04 | Mita Industrial Co., Ltd. | Method of feeding developer to developing zone in electrophotography |
EP0619530A1 (en) * | 1993-03-31 | 1994-10-12 | Canon Kabushiki Kaisha | Developing apparatus using elastic blade |
EP0660200A2 (en) * | 1993-12-24 | 1995-06-28 | Canon Kabushiki Kaisha | Developing apparatus generating electric field between developer carrying member and developer layer regulating member |
-
1980
- 1980-12-04 JP JP17130780A patent/JPS5794767A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153661A (en) * | 1984-08-24 | 1986-03-17 | Fuji Xerox Co Ltd | Contact developing method using insulating magnetic one-component developer |
EP0459780A2 (en) * | 1990-05-30 | 1991-12-04 | Mita Industrial Co., Ltd. | Method of feeding developer to developing zone in electrophotography |
EP0619530A1 (en) * | 1993-03-31 | 1994-10-12 | Canon Kabushiki Kaisha | Developing apparatus using elastic blade |
US5519472A (en) * | 1993-03-31 | 1996-05-21 | Canon Kabushiki Kaisha | Developing apparatus using elastic blade |
EP0660200A2 (en) * | 1993-12-24 | 1995-06-28 | Canon Kabushiki Kaisha | Developing apparatus generating electric field between developer carrying member and developer layer regulating member |
EP0660200A3 (en) * | 1993-12-24 | 1996-08-14 | Canon Kk | Developing apparatus generating electric field between developer carrying member and developer layer regulating member. |
US5682585A (en) * | 1993-12-24 | 1997-10-28 | Canon Kabushiki Kaisha | Developing apparatus generating electric field between developer carrying member and developer layer regulating member |
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