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GB1336024A - Electrophotographic device - Google Patents

Electrophotographic device

Info

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
Application number
GB86771A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1336024A publication Critical patent/GB1336024A/en
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Developing For Electrophotography (AREA)

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.
GB86771A 1970-01-09 1971-01-07 Electrophotographic device Expired GB1336024A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CA934539A (en) 1973-10-02
JPS527348B1 (en) 1977-03-01
DE2100370C3 (en) 1975-03-06
DE2100370B2 (en) 1974-07-18
US3707943A (en) 1973-01-02
NL7100157A (en) 1971-07-13
BE761331A (en) 1971-06-16
DE2100370A1 (en) 1971-07-22
FR2075331A5 (en) 1971-10-08

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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