JPS5640870A - Exfoliation aiding device for electrophotographic copier - Google Patents
Exfoliation aiding device for electrophotographic copierInfo
- Publication number
- JPS5640870A JPS5640870A JP11664879A JP11664879A JPS5640870A JP S5640870 A JPS5640870 A JP S5640870A JP 11664879 A JP11664879 A JP 11664879A JP 11664879 A JP11664879 A JP 11664879A JP S5640870 A JPS5640870 A JP S5640870A
- Authority
- JP
- Japan
- Prior art keywords
- bias voltage
- development
- tip part
- photoreceptor
- exfoliation
- 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)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To facilitate an easy exfoliation for the tip part of the copy paper, by setting the bias voltage to be applied to the picture region of the photoreceptor in the process of development lower than the ordinary level of the bias voltage to be applied at the areas excepting the tip part of the picture region. CONSTITUTION:The development bias voltage to be applied to the development roll 21 of the developing machine 10 is switched by the switching device 22. And the development bias voltage is set at e.g. 150V at the tip part of the picture area having a width of about 5mm. of the photoreceptor 8, and the development is carried out for the subsequent areas with the bias voltage of normal 350V. In such way, a large amount of toner is attached only to the tip part of the picture region to form a belt-form toner layer in an assured way. Then the toner is supplied between the tip of the copy part and the photoreceptor to weaken the electrostatic adsorbing force between them. As a result, an easy exfoliation is secured for the tip part of the copy paper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11664879A JPS5640870A (en) | 1979-09-13 | 1979-09-13 | Exfoliation aiding device for electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11664879A JPS5640870A (en) | 1979-09-13 | 1979-09-13 | Exfoliation aiding device for electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5640870A true JPS5640870A (en) | 1981-04-17 |
Family
ID=14692420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11664879A Pending JPS5640870A (en) | 1979-09-13 | 1979-09-13 | Exfoliation aiding device for electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5640870A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62197159U (en) * | 1986-06-03 | 1987-12-15 |
-
1979
- 1979-09-13 JP JP11664879A patent/JPS5640870A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62197159U (en) * | 1986-06-03 | 1987-12-15 |
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