US3598488A - Cleaning web - Google Patents

Cleaning web Download PDF

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Publication number
US3598488A
US3598488A US806889A US3598488DA US3598488A US 3598488 A US3598488 A US 3598488A US 806889 A US806889 A US 806889A US 3598488D A US3598488D A US 3598488DA US 3598488 A US3598488 A US 3598488A
Authority
US
United States
Prior art keywords
web
cleaning
past
strap
photoconductive
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 - Lifetime
Application number
US806889A
Other languages
English (en)
Inventor
Alphonse B Di Francesco
James D Shaw
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of US3598488A publication Critical patent/US3598488A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0041—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a band; Details of cleaning bands, e.g. band winding

Definitions

  • means having the form of a catenary curve such as a strap
  • the strap is provided with suitable means for attaching it to drive means which moves it past a photoconductive surface in frictional engagement therewith to remove residual toner particles therefrom.
  • the elongated web may be sufficiently long to overlap the attaching means.
  • the drive means may take the form of a pair of spaced timing belts extending around two or more spaced rollers.
  • the catenary strap is attached across one end of the web with ends thereof fastened to the timing belts, respectively, as by snap fasteners.
  • the web extends all the way around the path with the opposite end thereof overlapping the snap fasteners so that they cannot engage or damage the photoconductor.
  • the catenary curve shape reduces wrinkling or buckling of the web in a longitudinal direction as it passes around the rollers. By having the opposite end loose, lateral wrinkling will be reduced since the cleaning web will tend to be pulled tight as it moves along its path.
  • FIG. 1 is a diagrammatic side elevation of the cleaning device of this invention, partly in section to show details thereof;
  • FIG. 2 is a perspective view of the cleaning web, with parts broken away for clarity of illustration.
  • a photoconductor 10 which may be in the form of an endless belt, may be driven past a conventional charging station, an exposure station, developing station, and a transfer station, such as illustrated in commonly assigned US. Pat. application Ser. No. 725,742, filed May l, I968, now US. Pat. No. 3,5l0,'903 and finally past a web cleaning device D, which is adapted to remove residual toner particles from photoconductor 10 so that it may be reused again and again.
  • the photoconductor may include a photoconductive material on a conductive backing, as is common in the art.
  • the cleaning device includes an elongated cleaning web 11 which is attached to a pair of spaced timing belts 12 extending around and engages serrated ends of rollers 13, 14, and 15, as shown.
  • one of the rollers may be a driven roller for moving the timing belts through an endless path.
  • a tow strap 16, having the form of a catenary curve is attached to the leading end of elongated web 11, the ends of tow strap 16 being attached to timing belts 12, as by snap fasteners 17.
  • Cleaning web 11 is so dimensioned that the trailing end 18 thereof will overlap snap fastener 17 and tow strap 16, as shown in FIG.
  • the cleaning web is driven in a direction opposite to that in which the photoconductor is moving.
  • the catenary curve shape of the tow strap reduces wrinkling longitudinally along the cleaning web, particularly as it passes around rollers l3, l4, and 15. Since end 18 is unattached, the web tends to be pulled tight in a longitudinal direction tending to reduce lateral wrinkling.
  • an AC Corona 19 may be provided adjacent cleaning web 11, in the vicinity of photoconductor 10, as shown, to neutralize any charge on the residual toner particles so that they may be more easily picked up by the cleaning web. Toner particles may then be cleaned from the cleaning web by beaters or brushes 20. The toner particles thus separated may be exhausted by air pulled through inlet 21 which passes through cleaning web I] and carries the loosened toner particles with it through outlet 22 into a vacuum collector container 23.
  • An elongated cleaning web is provided which may be attached to endless timing belts by means of a tow strap having the shape of a catenary curve, thereby reducing longitudinal wrinkling of the cleaning web as it passes around support rollers.
  • the cleaning web may be dimensioned so as the trailing end thereof overlaps the fastening means which attach the tow strap to the timing belts to prevent scratching or other damage to the photoconductor during cleaning. Also, by having the trailing end loose, lateral wrinkling is reduced.
  • tow means at said leading end of said web for pulling said web along said endless path and having a catenary curve, configuration to reduce longitudinal wrinkling of said cleaning web as said web is moved past said photoconductive surface;
  • a cleaning device as claimed in claim 1, wherein:
  • said trailing end of said cleaning web is not attachable to the drive means so that said cleaning web is pulled tight in a longitudinal direction without lateral wrinkling as it is moved along said endless path past said photoconductive surface.
  • a strap having the shape of a catenary curve, attached to said leading end of said cleaning web, for coupling said cleaning web to said drive means to move said web along said endless path past said photoconductive surface without longitudinal wrinkling.
  • a cleaning device as claimed in claim 3, further including:
  • a cleaning device for cleaning residual toner particles from a photoconductive surface comprising:
  • an elongated cleaning web having a leading end and a trailing end
  • a tow strap having the shape of a catenary curve, attached to said leading end of said elongated web and connected to said moving means for towing said web past said photoconductive surface without wrinkling.
  • said web-moving means includes a pair of spaced endless belts to which said tow strap is connected.
  • a cleaning device as claimed in claim 6, wherein said web is dimensioned so that said trailing end thereof overlaps said tow strap to prevent damage to said photoconductive surface.
  • a cleaning device as claimed in claim 6, further including:
  • a cleaning device as claimed in claim 7, wherein:
  • said trailing end is not attached to said endless belts so that said cleaning web is pulled tight in a longitudinal direction so that it is moved through said endless path without lateral wrinkling.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In Electrography (AREA)
US806889A 1969-03-13 1969-03-13 Cleaning web Expired - Lifetime US3598488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80688969A 1969-03-13 1969-03-13

Publications (1)

Publication Number Publication Date
US3598488A true US3598488A (en) 1971-08-10

Family

ID=25195064

Family Applications (1)

Application Number Title Priority Date Filing Date
US806889A Expired - Lifetime US3598488A (en) 1969-03-13 1969-03-13 Cleaning web

Country Status (4)

Country Link
US (1) US3598488A (enExample)
BE (1) BE747287A (enExample)
DE (1) DE2011796A1 (enExample)
FR (1) FR2037941A5 (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827801A (en) * 1972-03-16 1974-08-06 Minolta Camera Kk Electrophotographic copier of image transfer type
US3941558A (en) * 1974-02-18 1976-03-02 Rank Xerox Ltd. Contact-heating fixing device for electrophotography
JPS52167045U (enExample) * 1977-06-09 1977-12-17
US4575217A (en) * 1984-12-04 1986-03-11 Eastman Kodak Company Apparatus for selectively sealing a discrete dielectric sheet developer station
US4862221A (en) * 1987-05-27 1989-08-29 Minolta Camera Kabushiki Kaisha Cleaning device
US5198243A (en) * 1990-07-02 1993-03-30 Sony Corporation Calendering roll cleaning apparatus
US5381218A (en) * 1993-11-22 1995-01-10 Xerox Corporation Conductive cleaning brush belt and detoning thereof
WO2003095220A1 (en) * 2002-05-07 2003-11-20 Baldwin Graphic Systems, Inc. Continuous conditioning system for cleaning a printing press and method of using same
US8177324B1 (en) 2010-10-29 2012-05-15 Jones Gene D Printers and apparatus to clean printer surfaces
CN106842873A (zh) * 2017-04-21 2017-06-13 仁怀市云侠网络科技有限公司 打印机废粉回收装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380355A (en) * 1965-10-22 1968-04-30 Xerox Corp Xerographic cleaning apparatus
US3510903A (en) * 1968-05-01 1970-05-12 Eastman Kodak Co Endless cleaning web

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380355A (en) * 1965-10-22 1968-04-30 Xerox Corp Xerographic cleaning apparatus
US3510903A (en) * 1968-05-01 1970-05-12 Eastman Kodak Co Endless cleaning web

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827801A (en) * 1972-03-16 1974-08-06 Minolta Camera Kk Electrophotographic copier of image transfer type
US3941558A (en) * 1974-02-18 1976-03-02 Rank Xerox Ltd. Contact-heating fixing device for electrophotography
JPS52167045U (enExample) * 1977-06-09 1977-12-17
US4575217A (en) * 1984-12-04 1986-03-11 Eastman Kodak Company Apparatus for selectively sealing a discrete dielectric sheet developer station
US4862221A (en) * 1987-05-27 1989-08-29 Minolta Camera Kabushiki Kaisha Cleaning device
US5198243A (en) * 1990-07-02 1993-03-30 Sony Corporation Calendering roll cleaning apparatus
US5381218A (en) * 1993-11-22 1995-01-10 Xerox Corporation Conductive cleaning brush belt and detoning thereof
WO2003095220A1 (en) * 2002-05-07 2003-11-20 Baldwin Graphic Systems, Inc. Continuous conditioning system for cleaning a printing press and method of using same
US8177324B1 (en) 2010-10-29 2012-05-15 Jones Gene D Printers and apparatus to clean printer surfaces
CN106842873A (zh) * 2017-04-21 2017-06-13 仁怀市云侠网络科技有限公司 打印机废粉回收装置

Also Published As

Publication number Publication date
BE747287A (fr) 1970-08-17
FR2037941A5 (enExample) 1970-12-31
DE2011796A1 (de) 1970-10-01

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