JPS5528081A - Field transfer method - Google Patents
Field transfer methodInfo
- Publication number
- JPS5528081A JPS5528081A JP10201178A JP10201178A JPS5528081A JP S5528081 A JPS5528081 A JP S5528081A JP 10201178 A JP10201178 A JP 10201178A JP 10201178 A JP10201178 A JP 10201178A JP S5528081 A JPS5528081 A JP S5528081A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- images
- detecting
- paper
- electric field
- 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 form good transfer images irrespective of ambient humidity and transfer paper moisture contents by detecting the resistance of transfer material and controlling transfer electric field.
CONSTITUTION: Surface resistance corresponding to the atmospheric humidity of the reansfer paper 6 being conveyed is detected by a surface resistance detecting part 16 by way of a pair of conductive and insulation-type rollers 13a, 13b. Further, the volume resistance corresponding to the moisture content of the transfer paper 6 is detected by a volume resistance detecting part 18 by way of a pair of conductive rollers 14a, 14b. According to the detection signals of these detecting parts 16, 18, the transfer voltage of a corona discharger 8 is controlled by a transfer voltage control part 21 and the optimum transfer electric field is applied to the photosensitive drum 1 where the sensible images by toner are formed, whereby the good images are transferred to the transfer materials of different ambient humidities and water contents.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10201178A JPS5528081A (en) | 1978-08-22 | 1978-08-22 | Field transfer method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10201178A JPS5528081A (en) | 1978-08-22 | 1978-08-22 | Field transfer method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5528081A true JPS5528081A (en) | 1980-02-28 |
Family
ID=14315815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10201178A Pending JPS5528081A (en) | 1978-08-22 | 1978-08-22 | Field transfer method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5528081A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57197579A (en) * | 1981-05-29 | 1982-12-03 | Sharp Corp | Toner image transferring device |
JPS58102279A (en) * | 1981-12-14 | 1983-06-17 | Fuji Xerox Co Ltd | Transfer device |
EP0616270A2 (en) * | 1993-03-15 | 1994-09-21 | Konica Corporation | Charger control in an electrophotographic copying apparatus |
US5488457A (en) * | 1993-09-01 | 1996-01-30 | Konica Corporation | Image forming apparatus with power source control |
US5621504A (en) * | 1993-12-21 | 1997-04-15 | Hitachi, Ltd. | Toner transferring device |
US5761568A (en) * | 1993-03-15 | 1998-06-02 | Hitachi, Ltd. | Electro-photographic apparatus having transfer bias control |
KR19990021037A (en) * | 1997-08-30 | 1999-03-25 | 윤종용 | Charge voltage control device for transfer roller of electrophotographic developing machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3877416A (en) * | 1973-04-23 | 1975-04-15 | Xerox Corp | Humidity corrected transfer apparatus |
-
1978
- 1978-08-22 JP JP10201178A patent/JPS5528081A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3877416A (en) * | 1973-04-23 | 1975-04-15 | Xerox Corp | Humidity corrected transfer apparatus |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57197579A (en) * | 1981-05-29 | 1982-12-03 | Sharp Corp | Toner image transferring device |
JPS6360910B2 (en) * | 1981-05-29 | 1988-11-25 | ||
JPS58102279A (en) * | 1981-12-14 | 1983-06-17 | Fuji Xerox Co Ltd | Transfer device |
EP0616270A2 (en) * | 1993-03-15 | 1994-09-21 | Konica Corporation | Charger control in an electrophotographic copying apparatus |
US5465135A (en) * | 1993-03-15 | 1995-11-07 | Konica Corporation | Charger control in an electrophotographic copying apparatus |
US5761568A (en) * | 1993-03-15 | 1998-06-02 | Hitachi, Ltd. | Electro-photographic apparatus having transfer bias control |
US5488457A (en) * | 1993-09-01 | 1996-01-30 | Konica Corporation | Image forming apparatus with power source control |
US5621504A (en) * | 1993-12-21 | 1997-04-15 | Hitachi, Ltd. | Toner transferring device |
KR19990021037A (en) * | 1997-08-30 | 1999-03-25 | 윤종용 | Charge voltage control device for transfer roller of electrophotographic developing machine |
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