JPS55101962A - Method and apparatus for electrophotography - Google Patents
Method and apparatus for electrophotographyInfo
- Publication number
- JPS55101962A JPS55101962A JP1017879A JP1017879A JPS55101962A JP S55101962 A JPS55101962 A JP S55101962A JP 1017879 A JP1017879 A JP 1017879A JP 1017879 A JP1017879 A JP 1017879A JP S55101962 A JPS55101962 A JP S55101962A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- toner
- polarity
- corona discharge
- layer
- 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
Landscapes
- Control Or Security For Electrophotography (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
Abstract
PURPOSE: To form images of excellent contrast repeatedly, by performing a specified process while the developer is carried on the surface of photoreceptor, in the repeated image forming method using a photoreceptor consisting of conductive layer, photoconductive layer and insulation layer.
CONSTITUTION: A photoreceptor A consisting of conductive layer a1, photoconductive layer a2 (e.g. n-type), and insulation layer a3 is positively charged by corona discharge (figure a), and the image is exposed and a negative voltage is applied by corona discharge at the same time (figure b), then it is fully exposed (figure c), and developed with toner T of the charge in the same polarity as the dark part D (positive polarity) (figure d). By exposing the photoreceptor carrying the toner T, a photo history is given to the photoconductive layer (which becomes low resistance, and the low resistance state is maintained for a while) (figure e). Next, by applying a corona discharge in the reverse polarity of the toner (negarive polarity) form the back of the transfer member P, the developed image is transferred on the transfer member P (figure f).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1017879A JPS55101962A (en) | 1979-01-31 | 1979-01-31 | Method and apparatus for electrophotography |
US06/031,592 US4286032A (en) | 1978-04-27 | 1979-04-19 | Electrophotographic process and apparatus therefor |
DE19792917005 DE2917005A1 (en) | 1978-04-27 | 1979-04-26 | METHOD AND DEVICE FOR ELECTROPHOTOGRAPHY |
US06/520,580 US4551003A (en) | 1978-04-27 | 1983-08-05 | Electrophotographic process and apparatus therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1017879A JPS55101962A (en) | 1979-01-31 | 1979-01-31 | Method and apparatus for electrophotography |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55101962A true JPS55101962A (en) | 1980-08-04 |
JPS6259305B2 JPS6259305B2 (en) | 1987-12-10 |
Family
ID=11743023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1017879A Granted JPS55101962A (en) | 1978-04-27 | 1979-01-31 | Method and apparatus for electrophotography |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55101962A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62156675A (en) * | 1985-12-27 | 1987-07-11 | Mita Ind Co Ltd | Electrophotographic copying method using memory photosensitive body |
-
1979
- 1979-01-31 JP JP1017879A patent/JPS55101962A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62156675A (en) * | 1985-12-27 | 1987-07-11 | Mita Ind Co Ltd | Electrophotographic copying method using memory photosensitive body |
Also Published As
Publication number | Publication date |
---|---|
JPS6259305B2 (en) | 1987-12-10 |
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