GB1477930A - Image transfer method and device - Google Patents

Image transfer method and device

Info

Publication number
GB1477930A
GB1477930A GB3212874A GB3212874A GB1477930A GB 1477930 A GB1477930 A GB 1477930A GB 3212874 A GB3212874 A GB 3212874A GB 3212874 A GB3212874 A GB 3212874A GB 1477930 A GB1477930 A GB 1477930A
Authority
GB
United Kingdom
Prior art keywords
transfer
paper
roller
charge
image
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
GB3212874A
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.)
Canon Inc
Original Assignee
Canon Inc
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 claimed from US05/489,087 external-priority patent/US3992557A/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB1477930A publication Critical patent/GB1477930A/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
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/14—Transferring a pattern to a second base
    • G03G13/16—Transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
    • 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
    • G03G15/1665—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
    • G03G15/167—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)

Abstract

1477930 Printing from developed electrostatic images CANON K K 19 July 1974 [23 July 1973] 32128/74 In a method of transferring a toner image e.g. a developed electrostatic image from an image carrier, e.g. a photoconductive drum, to a transfer medium, e.g. a copy sheet, uniform charges of the same polarity are applied to the image carrier and the transfer medium prior to transfer. In the embodiment of Fig. 4, negatively-charged toner forms a pattern on insulating layer 1c of photoconductive drum 10, which receives an overall negative charge from corona-discharge device 16. The transfer paper P receives an overall negative charge from corona-discharge device 22, and induces a positive charge on conductive roller 19 preferably the charge on paper P is at a lower potential than that on drum 10, and is controllable through grid 22. This potential difference will cause toner to transfer across to paper P and may be assisted by application of transfer voltage to roller 19. The separation of paper P from roller 19 is effected by a mechanical pawl (23), Fig. 3 (not shown) or by coronadischarge device 24 which carries A.C. or a voltage of opposite polarity to the attraction force.
GB3212874A 1973-07-23 1974-07-19 Image transfer method and device Expired GB1477930A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48082914A JPS6253826B2 (en) 1973-07-23 1973-07-23
US05/489,087 US3992557A (en) 1974-07-17 1974-07-17 Image transfer method

Publications (1)

Publication Number Publication Date
GB1477930A true GB1477930A (en) 1977-06-29

Family

ID=26423942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3212874A Expired GB1477930A (en) 1973-07-23 1974-07-19 Image transfer method and device

Country Status (2)

Country Link
JP (1) JPS6253826B2 (en)
GB (1) GB1477930A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52422A (en) * 1975-06-23 1977-01-05 Shigekazu Enoki Transfer method of magnetic toner
JPS6027028B2 (en) * 1975-07-18 1985-06-26 キヤノン株式会社 Transfer device
JPS6029947B2 (en) * 1976-12-14 1985-07-13 株式会社リコー Transfer method for multicolor electrophotography
JPS5657044A (en) * 1979-10-17 1981-05-19 Ricoh Co Ltd Transferring and separating method of copying machine
JPS5786846A (en) * 1980-11-20 1982-05-31 Canon Inc Transfer-material carrying device
JPS6151180A (en) * 1984-08-21 1986-03-13 Konishiroku Photo Ind Co Ltd Image transfer device
JPS6152670A (en) * 1984-08-21 1986-03-15 Konishiroku Photo Ind Co Ltd Picture transfer device
JPS6152672A (en) * 1984-08-21 1986-03-15 Konishiroku Photo Ind Co Ltd Picture transfer device
JPS6152674A (en) * 1984-08-21 1986-03-15 Konishiroku Photo Ind Co Ltd Picture transfer device
JP3306310B2 (en) * 1996-08-29 2002-07-24 シャープ株式会社 Image forming device

Also Published As

Publication number Publication date
JPS5032947A (en) 1975-03-29
AU7148574A (en) 1976-01-22
JPS6253826B2 (en) 1987-11-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940718