JPS561963A - Electric charger - Google Patents
Electric chargerInfo
- Publication number
- JPS561963A JPS561963A JP7774979A JP7774979A JPS561963A JP S561963 A JPS561963 A JP S561963A JP 7774979 A JP7774979 A JP 7774979A JP 7774979 A JP7774979 A JP 7774979A JP S561963 A JPS561963 A JP S561963A
- Authority
- JP
- Japan
- Prior art keywords
- zener diodes
- current
- grid voltage
- electric
- photoreceptor
- 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
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To prevent the breakdown by electric discharge and generate stable grid voltage by adding the Zener diodes series connected with a plurality and a current- limiting resistance to the electric charger of scorotron type.
CONSTITUTION: The Zener diodes D2 series-connected with plural bilateral Zener diodes D21WD25 are connected to the grid G of the electric charger of scorotron type used for charging and destaticizing of the photoreceptor in the copying machine and are grounded at one end to perform the stabilization of grid voltage. Also, a current-limiting resistor R1 is inserted between a DC electric power source E and a corona wire W. Hence, the stable grid voltage is applied by the Zener diodes D2, by which the photoreceptor may be charged. In addition, the breakdown of the Zener diodes D2 owing to electric discharge may be prevented by the current-limiting resistance R1, whereby the reliability may be improved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7774979A JPS561963A (en) | 1979-06-20 | 1979-06-20 | Electric charger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7774979A JPS561963A (en) | 1979-06-20 | 1979-06-20 | Electric charger |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS561963A true JPS561963A (en) | 1981-01-10 |
Family
ID=13642558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7774979A Pending JPS561963A (en) | 1979-06-20 | 1979-06-20 | Electric charger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS561963A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS585767A (en) * | 1981-07-02 | 1983-01-13 | Canon Inc | Transfer device |
JPS5834465A (en) * | 1981-08-24 | 1983-02-28 | Canon Inc | Guiding device for transfer material of electronic copying machine |
JPS5895363A (en) * | 1981-11-23 | 1983-06-06 | Yokogawa Hewlett Packard Ltd | Corona discharging device for electrophotographic device |
JPH05241426A (en) * | 1992-12-24 | 1993-09-21 | Canon Inc | Corona discharge device |
-
1979
- 1979-06-20 JP JP7774979A patent/JPS561963A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS585767A (en) * | 1981-07-02 | 1983-01-13 | Canon Inc | Transfer device |
JPH0458031B2 (en) * | 1981-07-02 | 1992-09-16 | Canon Kk | |
JPS5834465A (en) * | 1981-08-24 | 1983-02-28 | Canon Inc | Guiding device for transfer material of electronic copying machine |
JPS5895363A (en) * | 1981-11-23 | 1983-06-06 | Yokogawa Hewlett Packard Ltd | Corona discharging device for electrophotographic device |
JPH01160453U (en) * | 1981-11-23 | 1989-11-07 | ||
JPH05241426A (en) * | 1992-12-24 | 1993-09-21 | Canon Inc | Corona discharge device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE9502481D0 (en) | Method and apparatus for determining the type of external power source | |
EP0089224A3 (en) | Conductive charge/discharge device | |
JPS5763568A (en) | Electrophotographic device | |
JPS561963A (en) | Electric charger | |
IE830944L (en) | Elimination of static electricity | |
JPS5629260A (en) | Corona charging method in electrophotography or the like | |
JPS5343537A (en) | Corona charger | |
JPS5738459A (en) | Corona discharger of electrophotographic copier or the like | |
JPS55157759A (en) | High-voltage power source device for copying machine | |
JPS56146156A (en) | Charging system in electrophotography | |
JPS5695351A (en) | Electrical dust collector | |
JPS53141046A (en) | Ac corona generator for electrostatic electrophotographic copier | |
JPS5729058A (en) | Charge for electrophotographic copier | |
JPS5692560A (en) | Copying machine | |
JPS5255538A (en) | Charging device | |
JPS6449983A (en) | Alternating-current voltage testing device | |
JPS60220587A (en) | Brush charger | |
JPS55117162A (en) | Alternating current corona discharging device | |
SU836722A1 (en) | Apparatus for protecting electric discharge device from damage at internal breakthroughs | |
GB786421A (en) | Alternating current power pack | |
SU813725A1 (en) | Pulse voltage generator | |
JPS57192986A (en) | Destatisizing device for copying machine | |
SU815839A2 (en) | Device for limiting short-circuiting current at high-voltage substation | |
JPS5711359A (en) | Charger of electrophotographic copying machine | |
ES8304829A1 (en) | Generator for an electroerosion machine. |