JPS5515179A - Developing apparatus - Google Patents
Developing apparatusInfo
- Publication number
- JPS5515179A JPS5515179A JP8866178A JP8866178A JPS5515179A JP S5515179 A JPS5515179 A JP S5515179A JP 8866178 A JP8866178 A JP 8866178A JP 8866178 A JP8866178 A JP 8866178A JP S5515179 A JPS5515179 A JP S5515179A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- brush
- charged
- magnetic
- feed passage
- 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
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
PURPOSE: To keep the toner of a surface layer in a stable state and to obtain a stabilized image by providing a friction charging member in a toner feed passage in a magnetic brush developing process.
CONSTITUTION: Magnetic brush 4 for feeding charged toner and magnetic brush 7 for supplying the toner to brush 4 are provided around photosensitive drum 1 of an electrostatic latent image carrier, and between the two brushes porous plate 9 is installed consisting of a friction charging material different in frictional series from toner 10 made of one component type magnetic toner. Toner 10 is charged by triboelectricity on passing through gaps 9 of plate 9 on the feed passage from brush 7 to brush 4, and sufficiently charged toner 10 is supplied to charged sleeve 2, regulated to a constant rate with doctor 11, and thus fed to a developing section.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8866178A JPS5515179A (en) | 1978-07-19 | 1978-07-19 | Developing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8866178A JPS5515179A (en) | 1978-07-19 | 1978-07-19 | Developing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5515179A true JPS5515179A (en) | 1980-02-02 |
Family
ID=13948997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8866178A Pending JPS5515179A (en) | 1978-07-19 | 1978-07-19 | Developing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5515179A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158864A (en) * | 1981-02-24 | 1982-09-30 | Olivetti & Co Spa | Electrophotographic copying machine |
EP0469902A2 (en) * | 1990-08-02 | 1992-02-05 | Mita Industrial Co., Ltd. | A developing device |
-
1978
- 1978-07-19 JP JP8866178A patent/JPS5515179A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158864A (en) * | 1981-02-24 | 1982-09-30 | Olivetti & Co Spa | Electrophotographic copying machine |
JPH0322995B2 (en) * | 1981-02-24 | 1991-03-28 | Ingu* Chii Oribetsutei E Co Spa | |
EP0469902A2 (en) * | 1990-08-02 | 1992-02-05 | Mita Industrial Co., Ltd. | A developing device |
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