GB1370976A - Electrophotographic transfer method - Google Patents

Electrophotographic transfer method

Info

Publication number
GB1370976A
GB1370976A GB4359872A GB4359872A GB1370976A GB 1370976 A GB1370976 A GB 1370976A GB 4359872 A GB4359872 A GB 4359872A GB 4359872 A GB4359872 A GB 4359872A GB 1370976 A GB1370976 A GB 1370976A
Authority
GB
United Kingdom
Prior art keywords
signal
sheet
transfer method
sept
drum
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
GB4359872A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1370976A publication Critical patent/GB1370976A/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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/163—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
    • G03G15/1635—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Color Electrophotography (AREA)

Abstract

1370976 Transferring developed electrostatic images RICOH CO Ltd 20 Sept 1972 [20 Sept 1971] 43598/72 Headings B8R RL R222 and R248 A developed electrostatic image on a drum 2 is transferred to a copy sheet 11 with the assistance of a corona discharge means 7 supplied with a D.C. biased A.C. signal, the D.C. bias serving to assist transfer and the A.C. signal serving to partially discharge the sheet 11 and facilitating separation of the sheet 11 from the drum 2. The A.C. signal may be shaped.
GB4359872A 1971-09-20 1972-09-20 Electrophotographic transfer method Expired GB1370976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7313671A JPS5441904B2 (en) 1971-09-20 1971-09-20

Publications (1)

Publication Number Publication Date
GB1370976A true GB1370976A (en) 1974-10-23

Family

ID=13509472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4359872A Expired GB1370976A (en) 1971-09-20 1972-09-20 Electrophotographic transfer method

Country Status (4)

Country Link
US (1) US3860857A (en)
JP (1) JPS5441904B2 (en)
DE (1) DE2245848A1 (en)
GB (1) GB1370976A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL179517C (en) * 1974-11-18 1986-09-16 Oce Van Der Grinten N V P A Oc Apparatus for the electrostatic transfer of a powder image from a carrier to a receiving material.
US3921042A (en) * 1974-11-25 1975-11-18 Xerox Corp Electrostatic reproduction machine with improved corona generating device
CA1074180A (en) * 1975-08-06 1980-03-25 J. William Ladrigan Transfer system for electrostatic reproduction machine
JPS5262026A (en) * 1975-11-17 1977-05-23 Toray Industries Method of transferring continuous recording medium for electrophotographic recording practice
US4105320A (en) * 1977-01-05 1978-08-08 Xerox Corporation Transfer of conductive particles
JPS6016626B2 (en) * 1977-04-08 1985-04-26 コニカ株式会社 Color electrophotographic transfer method
JPS57104168A (en) * 1980-12-19 1982-06-29 Canon Inc Cleaning device
US4737816A (en) * 1982-06-16 1988-04-12 Canon Kabushiki Kaisha Image transfer device
US4461563A (en) * 1982-10-22 1984-07-24 Xerox Corporation Copy sheet contamination prevention
JPH05107935A (en) * 1991-10-18 1993-04-30 Mita Ind Co Ltd Transferring and separating device
US5724636A (en) * 1996-11-12 1998-03-03 Eastman Kodak Company Method and apparatus for transferring a toner image to a receiver sheet using an electrical bias
US5881347A (en) * 1997-04-21 1999-03-09 Eastman Kodak Company Biasing method and apparatus for electrostatically transferring an image
US6862422B2 (en) * 2003-02-12 2005-03-01 Kabushiki Kaisha Toshiba Image forming apparatus and image forming method having pressing members for pressing a belt-like member
JP6189577B2 (en) * 2010-08-18 2017-08-30 株式会社リコー Transfer apparatus, image forming apparatus, and transfer method
JP5936109B2 (en) 2011-12-06 2016-06-15 株式会社リコー Transfer device and image forming apparatus using the same
JP6083199B2 (en) * 2012-01-11 2017-02-22 株式会社リコー Image forming apparatus
JP2014077982A (en) * 2012-09-18 2014-05-01 Ricoh Co Ltd Transfer device and image forming apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901374A (en) * 1955-05-04 1959-08-25 Battelle Development Corp Development of electrostatic image and apparatus therefor
US2879395A (en) * 1955-06-08 1959-03-24 Haloid Xerox Inc Charging device
US3714531A (en) * 1970-06-26 1973-01-30 Canon Kk Ac corona discharger

Also Published As

Publication number Publication date
DE2245848A1 (en) 1973-03-29
JPS4839034A (en) 1973-06-08
JPS5441904B2 (en) 1979-12-11
US3860857A (en) 1975-01-14

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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