GB945980A - Improvements in and relating to methods and apparatus for developing electrophotographic materials - Google Patents

Improvements in and relating to methods and apparatus for developing electrophotographic materials

Info

Publication number
GB945980A
GB945980A GB40060/60A GB4006060A GB945980A GB 945980 A GB945980 A GB 945980A GB 40060/60 A GB40060/60 A GB 40060/60A GB 4006060 A GB4006060 A GB 4006060A GB 945980 A GB945980 A GB 945980A
Authority
GB
United Kingdom
Prior art keywords
roller
web
liquid
feed mechanism
speed
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
GB40060/60A
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.)
ALAN ROBIN FIRMINGER
Ozalid Co Ltd
Original Assignee
ALAN ROBIN FIRMINGER
Ozalid 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
Priority to NL279205D priority Critical patent/NL279205A/xx
Application filed by ALAN ROBIN FIRMINGER, Ozalid Co Ltd filed Critical ALAN ROBIN FIRMINGER
Priority to GB40060/60A priority patent/GB945980A/en
Priority to FR899480A priority patent/FR1324122A/en
Publication of GB945980A publication Critical patent/GB945980A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • G03D5/06—Applicator pads, rollers or strips
    • G03D5/067—Rollers
    • 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
    • G03G15/101—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer for wetting the recording material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)

Abstract

An apparatus for coating liquids on web comprises a bath containing the liquid, a roller mounted to rotate with its lower portion immerse in the liquid, a feed mechanism for traversing the web across the upper portion of the roller, means for holding the web under yielding pressure against the roller, a main motor which is normally effective to operate the feed mechanism and to rotate the roller so that its upper portion travels in the same direction as the web and that the peripheral speed is sufficiently in excess of the linear speed of the web to form and maintain a turbulent head of liquid and a normally ineffective idler motor, operative on stoppage of the main motor, to drive the roller at a slower speed. The web may be held under yielding pressure either by spring-loaded guide rollers or by an air blast and the web is in contact with the roller over an arc of 7 degrees or less. If the feed mechanism, normal a roller driven through a slipping clutch to avoid excess tension, is stopped the roller in the liquid is switched to a lower speed by the use of the idler motor, coupled to the roller by a freewheel connection, which prevents accumulation of liquid on the web.
GB40060/60A 1960-11-22 1960-11-22 Improvements in and relating to methods and apparatus for developing electrophotographic materials Expired GB945980A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL279205D NL279205A (en) 1960-11-22
GB40060/60A GB945980A (en) 1960-11-22 1960-11-22 Improvements in and relating to methods and apparatus for developing electrophotographic materials
FR899480A FR1324122A (en) 1960-11-22 1962-06-01 Method and apparatus for developing photographic sensitive surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB40060/60A GB945980A (en) 1960-11-22 1960-11-22 Improvements in and relating to methods and apparatus for developing electrophotographic materials
FR899480A FR1324122A (en) 1960-11-22 1962-06-01 Method and apparatus for developing photographic sensitive surfaces

Publications (1)

Publication Number Publication Date
GB945980A true GB945980A (en) 1964-01-08

Family

ID=26195975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40060/60A Expired GB945980A (en) 1960-11-22 1960-11-22 Improvements in and relating to methods and apparatus for developing electrophotographic materials

Country Status (3)

Country Link
FR (1) FR1324122A (en)
GB (1) GB945980A (en)
NL (1) NL279205A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367791A (en) * 1966-07-11 1968-02-06 Addressograph Multigraph Liquid development of electrostatic images
US3596635A (en) * 1967-03-16 1971-08-03 Bell & Howell Co Electrostatographic office copier
EP0078018A2 (en) * 1981-10-27 1983-05-04 Coulter Systems Corporation Method and apparatus for developing electrostatic latent images
EP0082428A1 (en) * 1981-12-09 1983-06-29 Coulter Systems Corporation Toning apparatus and method
EP0131224A1 (en) * 1983-07-01 1985-01-16 Coulter Systems Corporation Toning apparatus and method
EP0250098A2 (en) * 1986-05-22 1987-12-23 Xerox Corporation Liquid development system
EP0913743A2 (en) * 1997-11-03 1999-05-06 Xerox Corporation Method and apparatus for liquid development
DE102010016085A1 (en) * 2010-03-23 2011-09-29 OCé PRINTING SYSTEMS GMBH Method for avoiding deposition of liquid developer transported on roll during standstill time of e.g. digital electrophoretic printing apparatus, involves rotating raster roller at reduced speed and supplying developer liquid at intervals

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367791A (en) * 1966-07-11 1968-02-06 Addressograph Multigraph Liquid development of electrostatic images
US3596635A (en) * 1967-03-16 1971-08-03 Bell & Howell Co Electrostatographic office copier
EP0078018A2 (en) * 1981-10-27 1983-05-04 Coulter Systems Corporation Method and apparatus for developing electrostatic latent images
EP0078018A3 (en) * 1981-10-27 1983-08-17 Coulter Systems Corporation Method and apparatus for developing electrostatic latent images
EP0082428A1 (en) * 1981-12-09 1983-06-29 Coulter Systems Corporation Toning apparatus and method
EP0131224A1 (en) * 1983-07-01 1985-01-16 Coulter Systems Corporation Toning apparatus and method
EP0250098A2 (en) * 1986-05-22 1987-12-23 Xerox Corporation Liquid development system
EP0250098A3 (en) * 1986-05-22 1988-08-31 Xerox Corporation Liquid development system
EP0913743A2 (en) * 1997-11-03 1999-05-06 Xerox Corporation Method and apparatus for liquid development
EP0913743A3 (en) * 1997-11-03 1999-07-28 Xerox Corporation Method and apparatus for liquid development
DE102010016085A1 (en) * 2010-03-23 2011-09-29 OCé PRINTING SYSTEMS GMBH Method for avoiding deposition of liquid developer transported on roll during standstill time of e.g. digital electrophoretic printing apparatus, involves rotating raster roller at reduced speed and supplying developer liquid at intervals
DE102010016085B4 (en) * 2010-03-23 2016-06-02 Océ Printing Systems GmbH & Co. KG A method for preventing deposits on a developer liquid transporting roller in an electrophoretic pressure device

Also Published As

Publication number Publication date
FR1324122A (en) 1963-04-12
NL279205A (en)

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