JPS5522767A - Magnetic toner developing apparatus - Google Patents
Magnetic toner developing apparatusInfo
- Publication number
- JPS5522767A JPS5522767A JP9646478A JP9646478A JPS5522767A JP S5522767 A JPS5522767 A JP S5522767A JP 9646478 A JP9646478 A JP 9646478A JP 9646478 A JP9646478 A JP 9646478A JP S5522767 A JPS5522767 A JP S5522767A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- sleeve
- image
- latent image
- magnetic toner
- 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 prevent deterioration of an electsostatic latent image and to enhance recording density and quality, by opening a shutter provided near a doctor blade at start of developing and closing it at the end to control a magnetic toner.
CONSTITUTION: Sleeve 1 is fixed and only magnetic roller 2 in sleeve 1 rotates. When roller 2 rotates in direction arrow A, magnetic toner 3 attached onto sleeve 1 moves in direction arrow B and toner 3 is trimmed to a constant thickness layer with doctor blade 4. When toner 3 approaches an electrostatic latent image 6 formed on an electrostatic latent image bearing drum 5, a charge reverse to image 6 in polarity is injected to toner 3 from grounded sleeve 1 to develop image 6. Shutter 7 provided near blade 4 opens at start of developing and closes at the end to control toner 3, permitting deterioration of image 6 to be prevented and recording density and quality to be enhanced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9646478A JPS5522767A (en) | 1978-08-08 | 1978-08-08 | Magnetic toner developing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9646478A JPS5522767A (en) | 1978-08-08 | 1978-08-08 | Magnetic toner developing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5522767A true JPS5522767A (en) | 1980-02-18 |
Family
ID=14165743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9646478A Pending JPS5522767A (en) | 1978-08-08 | 1978-08-08 | Magnetic toner developing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5522767A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373798A (en) * | 1979-04-23 | 1983-02-15 | Canon Kabushiki Kaisha | Developing device with shutter blade |
-
1978
- 1978-08-08 JP JP9646478A patent/JPS5522767A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373798A (en) * | 1979-04-23 | 1983-02-15 | Canon Kabushiki Kaisha | Developing device with shutter blade |
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