GB1439704A - Electrophotographic printing system - Google Patents
Electrophotographic printing systemInfo
- Publication number
- GB1439704A GB1439704A GB4415273A GB4415273A GB1439704A GB 1439704 A GB1439704 A GB 1439704A GB 4415273 A GB4415273 A GB 4415273A GB 4415273 A GB4415273 A GB 4415273A GB 1439704 A GB1439704 A GB 1439704A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- sensitive
- electro
- charge
- conductive
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G13/00—Electrographic processes using a charge pattern
- G03G13/22—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/06—Eliminating residual charges from a reusable imaging member
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
1439704 Electro-photography MITSUBISHI DENKI KK 20 Sept 1973 [20 Sept 1972 (2) 18 Jan 1973] 44152/73 Heading G2H In an apparatus for electro-photographic printing, an electro-photographically sensitive substrate comprised of a charge maintaining layer and a photo-conductive sensitive layer is charged to form an electrical charge image of effectively single polarity corresponding to a light image exposed on the electro-photographically sensitive substrate, the charge image is transferred to a recording substrate, and a conductive member is brought into contact with the surface of the electrophotographically sensitive substrate to transfer residual charge thereon to erase the residual potential or adjust the residual potential to a predetermined value. The conductive roller may comprise a metal roller covered with a low resistance paper, and is connected to either a bias voltage or to earth. The charge maintaining layer may be an insulating layer alone or combined in a composite layer comprising a photo-conductive layer sensitive to radiation in a range outside that of the visible light range, e.g. sensitive to ultraviolet light, to which it may be exposed immediately prior to contacting with the conductive member to aid removal of residual charge. A number of different layer combinations are described.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9436072A JPS4953044A (en) | 1972-09-20 | 1972-09-20 | |
JP9436172A JPS5025233A (en) | 1972-09-20 | 1972-09-20 | |
JP48008105A JPS5242383B2 (en) | 1973-01-18 | 1973-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1439704A true GB1439704A (en) | 1976-06-16 |
Family
ID=27277878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4415273A Expired GB1439704A (en) | 1972-09-20 | 1973-09-20 | Electrophotographic printing system |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2347422C3 (en) |
GB (1) | GB1439704A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4259003A (en) * | 1979-08-06 | 1981-03-31 | Savin Corporation | Imaging surface discharge and cleaning apparatus for electrophotographic copier |
-
1973
- 1973-09-20 GB GB4415273A patent/GB1439704A/en not_active Expired
- 1973-09-20 DE DE19732347422 patent/DE2347422C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2347422C3 (en) | 1980-10-23 |
DE2347422B2 (en) | 1980-02-28 |
DE2347422A1 (en) | 1974-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |