JPS54126540A - Corona discharger - Google Patents
Corona dischargerInfo
- Publication number
- JPS54126540A JPS54126540A JP3447578A JP3447578A JPS54126540A JP S54126540 A JPS54126540 A JP S54126540A JP 3447578 A JP3447578 A JP 3447578A JP 3447578 A JP3447578 A JP 3447578A JP S54126540 A JPS54126540 A JP S54126540A
- Authority
- JP
- Japan
- Prior art keywords
- corona
- discharge
- opening
- dielectric
- main body
- 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.)
- Granted
Links
Abstract
PURPOSE: To enable enhancement of electrophotographic transfer efficiency as well as formation of good copies, by installing a dielectric member at least near the opening of a shield case for corona discharging.
CONSTITUTION: Opening ends 2, 2 of shield case main body 1 are folded inward to narrow a discharge corona current path. Not only opening ends 2, 2 but also both the inner side walls of main body 1 are covered with dielectric 3 made of polyethylene, polyethyleneterephthalate, or the like. When corona discharge wire 9 charged to high voltage is allowed to discharge, corona ions attach to dielectric 3, raising its surface in voltage, and the electric force flux is narrowed by this attachment of ions together with folding of opening 2, 2, and discharge corona current is efficiently controlled in a narrow range, thereby permitting transfer efficiency to be high and good copies to be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3447578A JPS54126540A (en) | 1978-03-25 | 1978-03-25 | Corona discharger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3447578A JPS54126540A (en) | 1978-03-25 | 1978-03-25 | Corona discharger |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54126540A true JPS54126540A (en) | 1979-10-01 |
JPS6148154B2 JPS6148154B2 (en) | 1986-10-22 |
Family
ID=12415270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3447578A Granted JPS54126540A (en) | 1978-03-25 | 1978-03-25 | Corona discharger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54126540A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6294863A (en) * | 1985-10-21 | 1987-05-01 | Fuji Xerox Co Ltd | Corona discharging device |
JP2008257183A (en) * | 2007-03-13 | 2008-10-23 | Ricoh Co Ltd | Charging brush, charging device, process unit and image forming apparatus |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2879395A (en) * | 1955-06-08 | 1959-03-24 | Haloid Xerox Inc | Charging device |
JPS4424674Y1 (en) * | 1966-01-19 | 1969-10-17 | ||
JPS4885241A (en) * | 1972-02-16 | 1973-11-12 | ||
JPS501755A (en) * | 1972-12-08 | 1975-01-09 | ||
JPS51106444A (en) * | 1975-03-15 | 1976-09-21 | Olympus Optical Co | |
JPS5232338A (en) * | 1975-09-08 | 1977-03-11 | K I P:Kk | Corona discharge means |
JPS52156636A (en) * | 1976-06-22 | 1977-12-27 | Canon Inc | Corona discharger |
-
1978
- 1978-03-25 JP JP3447578A patent/JPS54126540A/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2879395A (en) * | 1955-06-08 | 1959-03-24 | Haloid Xerox Inc | Charging device |
JPS4424674Y1 (en) * | 1966-01-19 | 1969-10-17 | ||
JPS4885241A (en) * | 1972-02-16 | 1973-11-12 | ||
JPS501755A (en) * | 1972-12-08 | 1975-01-09 | ||
JPS51106444A (en) * | 1975-03-15 | 1976-09-21 | Olympus Optical Co | |
JPS5232338A (en) * | 1975-09-08 | 1977-03-11 | K I P:Kk | Corona discharge means |
JPS52156636A (en) * | 1976-06-22 | 1977-12-27 | Canon Inc | Corona discharger |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6294863A (en) * | 1985-10-21 | 1987-05-01 | Fuji Xerox Co Ltd | Corona discharging device |
JP2008257183A (en) * | 2007-03-13 | 2008-10-23 | Ricoh Co Ltd | Charging brush, charging device, process unit and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6148154B2 (en) | 1986-10-22 |
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