JPS5621156A - Electrophotographic copier - Google Patents
Electrophotographic copierInfo
- Publication number
- JPS5621156A JPS5621156A JP9604279A JP9604279A JPS5621156A JP S5621156 A JPS5621156 A JP S5621156A JP 9604279 A JP9604279 A JP 9604279A JP 9604279 A JP9604279 A JP 9604279A JP S5621156 A JPS5621156 A JP S5621156A
- Authority
- JP
- Japan
- Prior art keywords
- copying
- photosensitive drum
- uniform charging
- uniform
- corotron
- 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
- Combination Of More Than One Step In Electrophotography (AREA)
Abstract
PURPOSE: To eliminate the need for corotron for uniform charging and make possible copying through one turn of a photoreceptor by successively performing the copying processes including electrically dividing the conductive substrate of a photosensitive drum and uniform charging by the application of bias voltage on every divided portion.
CONSTITUTION: The conductive substrate 2 of a photosensitive drum laminated with a photosensitive layer 3 is trisected electrically by insulators 5... Respective processes of uniform exposing by a light irradiating device 10, uniform charging by a bias electrode 6, latent image forming by an earth electrode 81 and an original exposure device 12, developing, and image transferring to copying paper are successively performed on these divided conductive substrates 21W23 for every substrate. With this constitution, the need for corotron for uniform charging is eliminated and there is no degradation of coratoron wire and no effect of ambient environments, thus even when the photosensitive layer of the photosensitive drum is insulated with an insulating layer or is not, the copying is accomplished in the same process, and the copying may be completed through one turn of the photosensitive drum.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9604279A JPS5621156A (en) | 1979-07-30 | 1979-07-30 | Electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9604279A JPS5621156A (en) | 1979-07-30 | 1979-07-30 | Electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5621156A true JPS5621156A (en) | 1981-02-27 |
Family
ID=14154425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9604279A Pending JPS5621156A (en) | 1979-07-30 | 1979-07-30 | Electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5621156A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4977639A (en) * | 1972-11-29 | 1974-07-26 | ||
JPS50103330A (en) * | 1974-01-12 | 1975-08-15 |
-
1979
- 1979-07-30 JP JP9604279A patent/JPS5621156A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4977639A (en) * | 1972-11-29 | 1974-07-26 | ||
JPS50103330A (en) * | 1974-01-12 | 1975-08-15 |
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