UST875026I4 - Scharf charging apparatus - Google Patents

Scharf charging apparatus Download PDF

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Publication number
UST875026I4
UST875026I4 US875026DH UST875026I4 US T875026 I4 UST875026 I4 US T875026I4 US 875026D H US875026D H US 875026DH US T875026 I4 UST875026 I4 US T875026I4
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United States
Prior art keywords
scharf
charging apparatus
charging
conductive surface
receiver
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Pending
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Publication of UST875026I4 publication Critical patent/UST875026I4/en
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    • 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus

Definitions

  • An apparatus for induction charging of a receiver having a photoconductive surface.
  • Proper spacing between the photoconductive surface of the receiver and the conductive surface of a charging roller is obtained in one embodiment by providing a photoresist insulative dot pattern on the conductive surface of the roller. Air ionization takes place in the spacing during application of a potential between the conductive surface of the charging roller and a conductive backing on the receiver.
  • the proper spacing is provided by an insulative powder which is sprinkled or dusted onto the conductive surface prior to use.

Description

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16. 1969, 869 0.0. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofllce makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED JUNE 30, 1970 T875,026 CHARGING APPARATUS Philip Thompson Scharf, 901 Elmgrove Road, Pittsford, NY. 14650 Filed Oct. 30, 1969, Ser. No. 872,573
Int. Cl. G03g 13/00 US. Cl. 250--49.5 1 Sheet Drawing. 7 Pages Specification An apparatus is provided for induction charging of a receiver having a photoconductive surface. Proper spacing between the photoconductive surface of the receiver and the conductive surface of a charging roller is obtained in one embodiment by providing a photoresist insulative dot pattern on the conductive surface of the roller. Air ionization takes place in the spacing during application of a potential between the conductive surface of the charging roller and a conductive backing on the receiver. In another embodiment the proper spacing is provided by an insulative powder which is sprinkled or dusted onto the conductive surface prior to use.
June 30, 1970 SCHARF T875,026
CHARGING APPARATUS Filed Oct. 30, 1969 PHILIP T. SCHARF INVENTOR.
BY @a 6,4910% ATTORNEYS
US875026D 1969-10-30 1969-10-30 Scharf charging apparatus Pending UST875026I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87257369A 1969-10-30 1969-10-30

Publications (1)

Publication Number Publication Date
UST875026I4 true UST875026I4 (en) 1970-06-30

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ID=25359871

Family Applications (1)

Application Number Title Priority Date Filing Date
US875026D Pending UST875026I4 (en) 1969-10-30 1969-10-30 Scharf charging apparatus

Country Status (2)

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US (1) UST875026I4 (en)
FR (1) FR2028659A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575436A (en) * 1994-05-19 1996-11-19 Beloit Technologies, Inc. Compliant covered roll or drum
US5851935A (en) * 1996-08-29 1998-12-22 Bba Nonwovens Simpsonville, Inc. Cross-directionally stretchable elastomeric fabric laminated by thermal spot bonding
US6025050A (en) * 1994-06-15 2000-02-15 Bba Nonwovens Simpsonville, Inc. Thermally appertured nonwoven laminates for wipes and coverstock for hygienic articles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575436A (en) * 1994-05-19 1996-11-19 Beloit Technologies, Inc. Compliant covered roll or drum
US6025050A (en) * 1994-06-15 2000-02-15 Bba Nonwovens Simpsonville, Inc. Thermally appertured nonwoven laminates for wipes and coverstock for hygienic articles
US5851935A (en) * 1996-08-29 1998-12-22 Bba Nonwovens Simpsonville, Inc. Cross-directionally stretchable elastomeric fabric laminated by thermal spot bonding

Also Published As

Publication number Publication date
FR2028659A1 (en) 1970-10-16

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