JPS5499634A - Charger of copying machine - Google Patents
Charger of copying machineInfo
- Publication number
- JPS5499634A JPS5499634A JP640278A JP640278A JPS5499634A JP S5499634 A JPS5499634 A JP S5499634A JP 640278 A JP640278 A JP 640278A JP 640278 A JP640278 A JP 640278A JP S5499634 A JPS5499634 A JP S5499634A
- Authority
- JP
- Japan
- Prior art keywords
- charger
- length
- insulation parts
- photoreceptor
- constitution
- 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
Abstract
PURPOSE: To let charging be performed only at the portions corresponding to images without increasing the size of the charger by providing charge wires which are selected or charged to the length corresponding to the length of the image part on photoreceptor.
CONSTITUTION: Insulation parts 2, 3 are provided at both ends of a shield body 1 of channel form in section with an opening in one way and a charge wire 4 whose entire part is composed of a conductor and charge wires 5, 6 whose portions beyond separating points 7, 8 are constituted by insulation parts 9, 10 are stretched between these insulation parts 2, 3. With such constitution, the control part is operated by a copy size magnification selection mechanism or paper sise detection mechanism to select an adequate charger length and select any of input terminals 11, through which a voltage is applied. Hence, the developer will not deposit on the non-image part, the burden of cleaning device will be reduced and the fatigue of the photoreceptor may be prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP640278A JPS5499634A (en) | 1978-01-24 | 1978-01-24 | Charger of copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP640278A JPS5499634A (en) | 1978-01-24 | 1978-01-24 | Charger of copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5499634A true JPS5499634A (en) | 1979-08-06 |
Family
ID=11637367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP640278A Pending JPS5499634A (en) | 1978-01-24 | 1978-01-24 | Charger of copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5499634A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56126874A (en) * | 1980-03-12 | 1981-10-05 | Toshiba Corp | Transfer roller equipment |
US4320956A (en) * | 1979-03-12 | 1982-03-23 | Olympus Optical Company Ltd. | Electrophotographic apparatus including a screen member for decreasing side edge electrostatic charge |
-
1978
- 1978-01-24 JP JP640278A patent/JPS5499634A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4320956A (en) * | 1979-03-12 | 1982-03-23 | Olympus Optical Company Ltd. | Electrophotographic apparatus including a screen member for decreasing side edge electrostatic charge |
JPS56126874A (en) * | 1980-03-12 | 1981-10-05 | Toshiba Corp | Transfer roller equipment |
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