GB1336024A - Electrophotographic device - Google Patents
Electrophotographic deviceInfo
- Publication number
- GB1336024A GB1336024A GB86771A GB86771A GB1336024A GB 1336024 A GB1336024 A GB 1336024A GB 86771 A GB86771 A GB 86771A GB 86771 A GB86771 A GB 86771A GB 1336024 A GB1336024 A GB 1336024A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- electrode
- portions
- energized
- passes
- 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
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
Abstract
1336024 Liquid developing apparatus FUJI PHOTO FILM CO Ltd 7 Jan 1971 [9 Jan 1970] 867/71 Heading G2H A conductive belt 5 carries a sheet 2 through a tank (not shown) containing toner in a liquid carrier and toner is deposited on the sheet under the influence of an electrode 14; electrode 14 being divided into portions which are energized in turn as the sheet passes. This prevents toner deposition on belt 5 in areas which the sheet has passed or not yet reached. The apparatus is particularly intended for reversed development of electrostatic latent images although it may be used to uniformly coat a sheet for use as a donor member. Electrode 14 may comprise rollers (26), Fig.4 (not shown). The portions of electrode 14 may be energized with different potentials Fig.5 (not shown) to compensate for image decay. As shown, the leading edge of sheet 2 is sensed by an infrared detector 12' which keeps a magnetic recording head (19), Fig.3 (not shown) energized until the trailing edge passes. The recording head (19) magnetizes a tape (23) which passes a succession of reading heads (25) connected to respective switches 15 to control energization of the portions of electrode 14.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45002820A JPS527348B1 (en) | 1970-01-09 | 1970-01-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336024A true GB1336024A (en) | 1973-11-07 |
Family
ID=11540033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB86771A Expired GB1336024A (en) | 1970-01-09 | 1971-01-07 | Electrophotographic device |
Country Status (8)
Country | Link |
---|---|
US (1) | US3707943A (en) |
JP (1) | JPS527348B1 (en) |
BE (1) | BE761331A (en) |
CA (1) | CA934539A (en) |
DE (1) | DE2100370C3 (en) |
FR (1) | FR2075331A5 (en) |
GB (1) | GB1336024A (en) |
NL (1) | NL7100157A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784397A (en) * | 1970-02-04 | 1974-01-08 | Xerox Corp | Imaging system |
US3817212A (en) * | 1972-01-10 | 1974-06-18 | Xerox Corp | Electrostatographic liquid development apparatus |
US4052127A (en) * | 1973-01-24 | 1977-10-04 | Ricoh Co., Ltd. | Developing system |
DE2403186C3 (en) * | 1973-01-24 | 1985-11-21 | Kabushiki Kaisha Ricoh, Tokio/Tokyo | Developing device for an electrophotographic copier |
US3970043A (en) * | 1973-06-18 | 1976-07-20 | Xerox Corporation | Electrophotographic device for liquid development |
US3951653A (en) * | 1973-08-30 | 1976-04-20 | Rank Xerox Ltd. | Method of preventing toner build-up on electrodes during liquid development |
US4037952A (en) * | 1973-08-30 | 1977-07-26 | Rank Xerox Ltd. | Apparatus for liquid development of cut sheet electrostatographic copies |
US4050806A (en) * | 1974-05-10 | 1977-09-27 | Ricoh Co., Ltd. | Method and apparatus for electrically biasing developing electrode of electrophotographic device |
JPS588507B2 (en) * | 1974-06-10 | 1983-02-16 | 株式会社リコー | Wet developing device |
US4141643A (en) * | 1974-09-13 | 1979-02-27 | Ricoh Company, Ltd. | Developing electrode arrangement for electrophotographic apparatus |
GB1527353A (en) * | 1974-10-15 | 1978-10-04 | Agfa Gevaert | Apparatus for use in processing sheets or strips of recording material |
JPS5174634A (en) * | 1974-12-24 | 1976-06-28 | Ricoh Kk | Denshishashinno baiasugenzohoho |
DE2507221C3 (en) * | 1975-02-20 | 1981-03-26 | Hoechst Ag, 65929 Frankfurt | Apparatus for developing an electrostatic latent image on an electrophotographic copy material |
US4558941A (en) * | 1983-03-31 | 1985-12-17 | Takefumi Nosaki | Developing apparatus |
DE19523879A1 (en) * | 1995-06-30 | 1997-01-02 | Heidelberger Druckmasch Ag | Control process for printer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1063203A (en) * | 1962-10-02 | 1967-03-30 | Australia Res Lab | Method of and means for the transfer of images |
US3345925A (en) * | 1963-01-03 | 1967-10-10 | Scm Corp | Electrostatic printing and developing apparatus |
US3441345A (en) * | 1963-05-20 | 1969-04-29 | Addressograph Multigraph | Photocopying |
US3137306A (en) * | 1963-11-01 | 1964-06-16 | Fairchild Camera Instr Co | Pre-wetter |
US3553093A (en) * | 1965-03-19 | 1971-01-05 | Xerox Corp | Color photoelectrophoretic imaging process |
US3547076A (en) * | 1967-03-23 | 1970-12-15 | Sherwin Williams Co | Apparatus for increasing the contrast in liquid immersion developing of electrostatic image |
US3415223A (en) * | 1967-04-24 | 1968-12-10 | Pitney Bowes Inc | Development apparatus for electrostatic copiers |
US3577259A (en) * | 1968-09-19 | 1971-05-04 | Xerox Corp | Liquid development of electrostatic latent images utilizing a tonerfree zone |
-
1970
- 1970-01-09 JP JP45002820A patent/JPS527348B1/ja active Pending
-
1971
- 1971-01-06 CA CA102436A patent/CA934539A/en not_active Expired
- 1971-01-07 BE BE761331A patent/BE761331A/en unknown
- 1971-01-07 GB GB86771A patent/GB1336024A/en not_active Expired
- 1971-01-07 DE DE2100370A patent/DE2100370C3/en not_active Expired
- 1971-01-07 NL NL7100157A patent/NL7100157A/xx unknown
- 1971-01-08 FR FR7100457A patent/FR2075331A5/fr not_active Expired
- 1971-01-08 US US00104978A patent/US3707943A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA934539A (en) | 1973-10-02 |
NL7100157A (en) | 1971-07-13 |
BE761331A (en) | 1971-06-16 |
JPS527348B1 (en) | 1977-03-01 |
FR2075331A5 (en) | 1971-10-08 |
US3707943A (en) | 1973-01-02 |
DE2100370B2 (en) | 1974-07-18 |
DE2100370C3 (en) | 1975-03-06 |
DE2100370A1 (en) | 1971-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |