ES385845A1 - Transfer apparatus - Google Patents

Transfer apparatus

Info

Publication number
ES385845A1
ES385845A1 ES385845A ES385845A ES385845A1 ES 385845 A1 ES385845 A1 ES 385845A1 ES 385845 A ES385845 A ES 385845A ES 385845 A ES385845 A ES 385845A ES 385845 A1 ES385845 A1 ES 385845A1
Authority
ES
Spain
Prior art keywords
copy sheet
drum
belt
layer
sheet
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
ES385845A
Other languages
Spanish (es)
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of ES385845A1 publication Critical patent/ES385845A1/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
    • G03G15/1665—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)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

An apparatus and method for efficiently transferring a toner image from a rotatable electrostatic drum to a copy sheet while the copy sheet remains in a substantially flat position without degrading the quality of the latent image on the drum by imposing an electrical field between the copy sheet and drum as the sheet moves away from the drum surface after the toner image has been transferred to the copy sheet. In one embodiment of the invention, a movable, endless, two-layer belt having an inner layer of conductive material and an outer layer of relatively nonconductive material carries the copy sheet through the transfer station in a plane substantially tangent to the surface of the drum. An electrical bias is applied to the inner layer of the belt which attracts toner from the electrostatic drum to the copy sheet, but charge is prevented from reaching the copy sheet and drum by the relatively nonconductive layer of the belt. Small holes can be made in the belt and a vacuum placed on the copy sheet through the holes to insure there is no relative motion between the copy sheet and belt during the transfer step.
ES385845A 1969-11-28 1970-11-24 Transfer apparatus Expired ES385845A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88057669A 1969-11-28 1969-11-28

Publications (1)

Publication Number Publication Date
ES385845A1 true ES385845A1 (en) 1973-05-01

Family

ID=25376579

Family Applications (1)

Application Number Title Priority Date Filing Date
ES385845A Expired ES385845A1 (en) 1969-11-28 1970-11-24 Transfer apparatus

Country Status (11)

Country Link
US (1) US3647292A (en)
JP (1) JPS4937535B1 (en)
BE (1) BE759452A (en)
CA (1) CA919004A (en)
CH (1) CH519187A (en)
DE (1) DE2058481C3 (en)
ES (1) ES385845A1 (en)
FR (1) FR2070196B1 (en)
GB (1) GB1319148A (en)
NL (1) NL7017140A (en)
SE (1) SE371507B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860436A (en) * 1972-11-24 1975-01-14 Thomas Meagher Constant current biasing transfer system
US3877416A (en) * 1973-04-23 1975-04-15 Xerox Corp Humidity corrected transfer apparatus
US3832055A (en) * 1973-06-05 1974-08-27 Xerox Corp Foraminous vacuum bias roll transfer system
US3993021A (en) * 1973-06-08 1976-11-23 Minnesota Mining And Manufacturing Company Transfer device
US3900591A (en) * 1973-06-08 1975-08-19 Minnesota Mining & Mfg Developed image transfer
US4023894A (en) * 1973-11-30 1977-05-17 Xerox Corporation Transfer apparatus
US3830589A (en) * 1973-12-03 1974-08-20 Xerox Corp Conductive block transfer system
US3832053A (en) * 1973-12-03 1974-08-27 Xerox Corp Belt transfer system
US4027960A (en) * 1975-08-06 1977-06-07 Xerox Corporation Transfer system for electrostatic reproduction machine
US4110024A (en) * 1976-05-14 1978-08-29 Xerox Corporation Transfer assembly for electrostatic transfer of a toner image from a curvilinear recording surface
US4105320A (en) * 1977-01-05 1978-08-08 Xerox Corporation Transfer of conductive particles
US4410896A (en) * 1981-04-13 1983-10-18 Wang Laboratories, Inc. Apparatus for preventing removal of toner from transferred images
US4392179A (en) * 1981-07-09 1983-07-05 Wang Laboratories, Inc. Apparatus and method for separating adhering media electrostatically
DE3833302C2 (en) * 1987-09-30 1994-07-07 Asahi Optical Co Ltd Sheet transport and guide device for an electrophotographic device
US5198863A (en) * 1988-06-29 1993-03-30 Canon Kabushiki Kaisha Image forming apparatus
JPH0255645U (en) * 1988-10-17 1990-04-23
US5557384A (en) * 1992-01-22 1996-09-17 Ricoh Company, Ltd. Image transferring device for image forming equipment
JP3245240B2 (en) * 1992-01-22 2002-01-07 株式会社リコー Transfer device for image forming device
US5659843A (en) * 1992-01-22 1997-08-19 Ricoh Company, Ltd. Image transferring device for image forming equipment
US5461461A (en) * 1992-01-22 1995-10-24 Ricoh Company, Ltd. Image transferring device and medium separating device for an image forming apparatus
JP2992788B2 (en) * 1992-10-22 1999-12-20 三田工業株式会社 Image generator with toner image transfer means
DE19758483C2 (en) * 1997-06-20 2001-03-29 Weidmueller Interface Laser printer
DE19726236C2 (en) * 1997-06-20 2002-11-07 Weidmueller Interface laser

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965756A (en) * 1959-10-09 1960-12-20 Haloid Xerox Inc Electrostatic charging apparatus
GB1063203A (en) * 1962-10-02 1967-03-30 Australia Res Lab Method of and means for the transfer of images
US3332328A (en) * 1965-03-01 1967-07-25 Xerox Corp Xerographic developer seal and process
US3300101A (en) * 1965-07-01 1967-01-24 Xerox Corp Toner dispenser
US3429701A (en) * 1965-10-24 1969-02-25 Ibm Multiple copy electrophotographic device utilizing a charge pattern at the interface of a photoconductive layer and a dielectric layer
US3457405A (en) * 1966-10-11 1969-07-22 Xerox Corp Corona wire mounting means which compensates for wire expansion due to heat

Also Published As

Publication number Publication date
DE2058481B2 (en) 1980-03-27
FR2070196A1 (en) 1971-09-10
CA919004A (en) 1973-01-16
SE371507B (en) 1974-11-18
US3647292A (en) 1972-03-07
NL7017140A (en) 1971-06-02
JPS4937535B1 (en) 1974-10-09
DE2058481A1 (en) 1971-06-09
DE2058481C3 (en) 1980-11-20
BE759452A (en) 1971-05-26
FR2070196B1 (en) 1973-02-02
CH519187A (en) 1972-02-15
GB1319148A (en) 1973-06-06

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