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GB1448386A - Electrostatographic transfer system - Google Patents

Electrostatographic transfer system

Info

Publication number
GB1448386A
GB1448386A GB2324874A GB2324874A GB1448386A GB 1448386 A GB1448386 A GB 1448386A GB 2324874 A GB2324874 A GB 2324874A GB 2324874 A GB2324874 A GB 2324874A GB 1448386 A GB1448386 A GB 1448386A
Authority
GB
United Kingdom
Prior art keywords
roller
gap
segment
nip
foraminous
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
GB2324874A
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
Priority claimed from US364463A external-priority patent/US3866572A/en
Priority claimed from US00367279A external-priority patent/US3832055A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB1448386A publication Critical patent/GB1448386A/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
    • G03G15/1685—Structure, details of the transfer member, e.g. chemical composition
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G17/00—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process
    • G03G17/04—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process using photoelectrophoresis

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

1448386 Transferring toner images XEROX CORP 24 May 1974 [29 May 1973 5 June 1973] 23248/74 Heading B6C [Also in Divisions G2-G3] In an electrostatographic apparatus of the kind in which a toner image is transferred from a photoconductor 11 to a paper sheet 16 using a bias roller 15 with a conductive backing roll 12, Fig. 3, the roller 15 comprises an electrically conductive core 22 and a compressible body 21 of foraminous open cell material which is highly compressed in the nip area 17. The body 21 may have a liquid-impervious coating 20 on its outer surface, in which case its open cells may be filled with a resistive liquid instead of air. The torque applied by the drive for the roller 15 is set to produce a bulge in the body 21 in the region of the pre-nip gap W to suppress corona generation in said gap W, while a controlled corona is generated in the post-nip gap Y to aid retention of the transferred toner on the paper 16. Rollers, similarly constructed to the roller 15, may be applied to photoelectrophoretic processes (see Division G2-G3). In another embodiment, Fig. 4, the core 122 of the bias roller 115 is formed of perforated metal and is suction backed over a segment of its rotation, as shown, to hold the paper sheet to the roller in the region of said segment. The foraminous body 121 is provided with a paperregistration lip 127, and is cleaned by a vacuum device 126.
GB2324874A 1973-05-29 1974-05-24 Electrostatographic transfer system Expired GB1448386A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US364463A US3866572A (en) 1973-05-29 1973-05-29 Foraminous electrostatographic transfer system
US00367279A US3832055A (en) 1973-06-05 1973-06-05 Foraminous vacuum bias roll transfer system

Publications (1)

Publication Number Publication Date
GB1448386A true GB1448386A (en) 1976-09-08

Family

ID=27002485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2324874A Expired GB1448386A (en) 1973-05-29 1974-05-24 Electrostatographic transfer system

Country Status (7)

Country Link
JP (1) JPS611745B2 (en)
BR (1) BR7404395D0 (en)
DE (1) DE2425609A1 (en)
ES (1) ES426760A1 (en)
FR (1) FR2231994B1 (en)
GB (1) GB1448386A (en)
IT (1) IT1012842B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141692A (en) * 1983-06-20 1985-01-03 Hewlett Packard Co Friction roller pair for moving paper and the like

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54115133A (en) * 1978-02-28 1979-09-07 Olympus Optical Co Ltd Plural sheet copying electrophotographic method
JPS55110252A (en) * 1979-02-15 1980-08-25 Canon Inc Electrophotographic receptor
US4607935A (en) * 1984-04-18 1986-08-26 Eastman Kodak Company Roller transfer apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141692A (en) * 1983-06-20 1985-01-03 Hewlett Packard Co Friction roller pair for moving paper and the like

Also Published As

Publication number Publication date
JPS611745B2 (en) 1986-01-20
JPS5022640A (en) 1975-03-11
ES426760A1 (en) 1976-07-16
FR2231994A1 (en) 1974-12-27
DE2425609A1 (en) 1974-12-19
FR2231994B1 (en) 1976-06-25
IT1012842B (en) 1977-03-10
BR7404395D0 (en) 1975-01-21

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee