GB1336960A - Electrophotographic developing apparatus - Google Patents

Electrophotographic developing apparatus

Info

Publication number
GB1336960A
GB1336960A GB6056071A GB6056071A GB1336960A GB 1336960 A GB1336960 A GB 1336960A GB 6056071 A GB6056071 A GB 6056071A GB 6056071 A GB6056071 A GB 6056071A GB 1336960 A GB1336960 A GB 1336960A
Authority
GB
United Kingdom
Prior art keywords
electrode
image
station
resistance
earthed
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
GB6056071A
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 GB1336960A publication Critical patent/GB1336960A/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)
  • Developing For Electrophotography (AREA)

Abstract

1336960 Developing electrostatic latent images FUJI PHOTO FILM CO Ltd 29 Dec 1971 [28 Dec 1970] 60560/71 Heading G2H An electrostatic latent image is developed under the influence of a development electrode, the electrode being earthed through a low or zero resistance for a continuous tone image and through a high resistance for a line image. In Fig.3, rollers 20 and 31 are permanently connected directly to earth and rollers 21 are either connected directly to earth or are earthed through a resistance R (preferably 10<SP>6</SP> ohms to infinity;) selection being made by a switch 13. In Fig. 8 (not shown) variable resistances are used. In Fig. 1 (not shown) a curved plate electrode (12) and a curved gauze electrode (10) are used. In Fig. 9 (not shown) an image is sprayed at a pretreatment station (100) with insulating liquid; sprayed with liquid developer at a station (90) identical to that of Fig. 3 and then rinsed and squeezed at an aftertreatment station (110).
GB6056071A 1970-12-28 1971-12-29 Electrophotographic developing apparatus Expired GB1336960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45120320A JPS5124251B1 (en) 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
GB1336960A true GB1336960A (en) 1973-11-14

Family

ID=14783317

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6056071A Expired GB1336960A (en) 1970-12-28 1971-12-29 Electrophotographic developing apparatus

Country Status (7)

Country Link
US (1) US3822670A (en)
JP (1) JPS5124251B1 (en)
BE (1) BE777310A (en)
CA (1) CA953490A (en)
DE (1) DE2165134A1 (en)
FR (1) FR2120985A5 (en)
GB (1) GB1336960A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862619A (en) * 1972-03-13 1975-01-28 Rank Xerox Ltd Electro-photographic apparatus
US3871329A (en) * 1972-10-16 1975-03-18 Dennison Mfg Co Development electrode
US4052127A (en) * 1973-01-24 1977-10-04 Ricoh Co., Ltd. Developing system
GB1452149A (en) * 1973-01-24 1976-10-13 Ricoh Kk Electrophotographic developing apparatus
US3877416A (en) * 1973-04-23 1975-04-15 Xerox Corp Humidity corrected transfer apparatus
US3893417A (en) * 1974-01-17 1975-07-08 Eastman Kodak Co Apparatus for liquid development of electrostatic images
US3965861A (en) * 1974-09-04 1976-06-29 Rank Xerox Ltd. Separated roller liquid development
US4111156A (en) * 1974-12-09 1978-09-05 Olympus Optical Co., Ltd. Devices for developing an electrostatic charge image on a record sheet by a developer solution
DE2507221C3 (en) * 1975-02-20 1981-03-26 Hoechst Ag, 65929 Frankfurt Apparatus for developing an electrostatic latent image on an electrophotographic copy material
JPS5545394Y2 (en) * 1975-10-23 1980-10-24
JPS52102043A (en) * 1976-02-23 1977-08-26 Olympus Optical Co Ltd Electrostatic image developing
JPS5466562U (en) * 1977-10-18 1979-05-11
JPS5484738A (en) * 1977-12-19 1979-07-05 Ricoh Co Ltd Developing device for variable magnification copier
US20060177244A1 (en) * 2005-02-08 2006-08-10 Nitto Kogyo Co., Ltd. Image forming roller

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913353A (en) * 1955-02-08 1959-11-17 Gen Dynamics Corp Method and apparatus for developing electrostatic image
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
BE655347A (en) * 1963-11-05
US3435802A (en) * 1965-06-30 1969-04-01 Eastman Kodak Co Electrographic liquid developing apparatus
US3411482A (en) * 1967-01-30 1968-11-19 Varian Associates Electrographic toner development employing a clean-up electrode structure for removing unwanted background
US3601092A (en) * 1969-02-28 1971-08-24 Ricoh Kk Developing device for wet process electrophotography
US3599605A (en) * 1969-03-20 1971-08-17 Ibm Self-biasing development electrode for electrophotography
JPS5142492B1 (en) * 1969-06-25 1976-11-16
US3674532A (en) * 1970-07-23 1972-07-04 Eastman Kodak Co Control for bias of magnetic brush and method

Also Published As

Publication number Publication date
BE777310A (en) 1972-04-17
CA953490A (en) 1974-08-27
FR2120985A5 (en) 1972-08-18
US3822670A (en) 1974-07-09
JPS5124251B1 (en) 1976-07-22
DE2165134A1 (en) 1972-07-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee