GB1481123A - Corona generator cleaning apparatus - Google Patents

Corona generator cleaning apparatus

Info

Publication number
GB1481123A
GB1481123A GB1492/75A GB149275A GB1481123A GB 1481123 A GB1481123 A GB 1481123A GB 1492/75 A GB1492/75 A GB 1492/75A GB 149275 A GB149275 A GB 149275A GB 1481123 A GB1481123 A GB 1481123A
Authority
GB
United Kingdom
Prior art keywords
wires
shield
grid
coronode
wire
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
GB1492/75A
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 GB1481123A publication Critical patent/GB1481123A/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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0258—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices provided with means for the maintenance of the charging apparatus, e.g. cleaning devices, ozone removing devices G03G15/0225, G03G15/0291 takes precedence
    • 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
    • G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

1481123 Corona charging apparatus XEROX CORP 14 Jan 1975 [16 Jan 1974] 1492/75 Heading H1X A corona device includes a trough-like shield 66, Fig. 2, a grid 68 in the open side of the shield, electrodes 78, 80 between the shield and the grid, and means for cleaning the electrodes and grid, the cleaning means having a part for flexing the grid, loosening particles adhering thereto, and scraping the loosened particles therefrom, and a part for wiping particles from the electrodes 78, 80. The corona device forms part of a known colour electrophotographic machine. As shown in Fig. 2, the device includes a trough-like shield 66 with the opening towards and close to a photoconducting surface. A grid extending lengthwise of the shield comprises parallel wires 68, which may be parts of a single continuous wire. Insulated plates 74 (only one shown) fixed to the ends of shield 66 have screws 70 to which the ends of the wire are fixed, intermediate loops passing round posts 72. Wires 68 and coronode wires 78, 80 are made of platinum. Coronode wire 80 lies under the wires 68, but coronode wire 78 lines under a gap between wires 68 and the side of shield 66. In use, coronode wires 78, 80 have a potential of 6000-8000 volts and the grid wires have a potential of about 925 volts, producing a corona current of about 200-500 Á amps. Cleaning means 82 (see also Fig. 4) comprises a comb with slots 98 engaging wires 68, and felt wipers 106, 108 engaging coronode wires 78, 80, mounted in a carriage movable along the wires by a rod 88 slidable along shield 66 and having a handle 90, which is accessible from outside the machine, and is used to move the cleaning means to and fro. A surface within the carriage engages the grid wires 68, pushing them upwards so that they are flexed as the carriage moves. This tends to loosen particles baked on to the wires.
GB1492/75A 1974-01-16 1975-01-14 Corona generator cleaning apparatus Expired GB1481123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US433979A US3875407A (en) 1974-01-16 1974-01-16 Corona generator cleaning apparatus

Publications (1)

Publication Number Publication Date
GB1481123A true GB1481123A (en) 1977-07-27

Family

ID=23722334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1492/75A Expired GB1481123A (en) 1974-01-16 1975-01-14 Corona generator cleaning apparatus

Country Status (7)

Country Link
US (1) US3875407A (en)
JP (1) JPS5743901B2 (en)
CA (1) CA1058274A (en)
DE (1) DE2500188B2 (en)
FR (1) FR2258024B1 (en)
GB (1) GB1481123A (en)
NL (1) NL7500540A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193159A (en) * 1986-05-16 1988-02-03 Sharp Kk Cleaning elements in electrophotographic copiers

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038546A (en) * 1976-05-03 1977-07-26 Xerox Corporation Cleaning apparatus for a corona generating device
US4734580A (en) * 1986-06-16 1988-03-29 The Simco Company, Inc. Built-in ionizing electrode cleaning apparatus
US4724509A (en) * 1986-07-25 1988-02-09 Xerox Corporation Efficiently mounted long coronodes
US4885466A (en) * 1987-09-25 1989-12-05 Ricoh Company, Ltd. Corona wire cleaning device utilizing a position detection system
US5012093A (en) * 1988-08-29 1991-04-30 Minolta Camera Co., Ltd. Cleaning device for wire electrode of corona discharger
US4991451A (en) * 1989-06-22 1991-02-12 Nova Biomedical Corporation Probe wiping
JPH04122407U (en) * 1991-02-14 1992-11-04 株式会社日研工作所 chuck for tools
US5485251A (en) * 1993-09-06 1996-01-16 Mita Industrial Co., Ltd. Cleaning device for an electrostatic charger
US5572293A (en) * 1993-10-14 1996-11-05 Ricoh Company, Ltd. Method of and system for cleaning a charge inducing member
US5485255A (en) * 1994-08-31 1996-01-16 Eastman Kodak Company Automatic cleaning mechanism for a corona charger using cleaning pad
KR0134699B1 (en) * 1994-12-27 1998-04-30 김광호 Charger cleaner in apparatus for electro-graphic device
US5594532A (en) * 1995-03-15 1997-01-14 Dataproducts Corporation Cartridge, cartridge cleaning apparatus and method for cleaning a corona wire
JPH09244357A (en) * 1996-03-08 1997-09-19 Konica Corp Corona discharging device
JP4602068B2 (en) * 2004-12-24 2010-12-22 京セラミタ株式会社 Image forming apparatus
US7272337B2 (en) * 2005-09-15 2007-09-18 Xerox Corporation Corona device grid cleaner
US7412186B2 (en) * 2005-09-16 2008-08-12 Xerox Corporation Cleaning system for a charging device in a xerographic printer
JP5181000B2 (en) * 2010-07-29 2013-04-10 シャープ株式会社 Charging device and image forming apparatus provided with the charging device
JP5782752B2 (en) * 2011-03-07 2015-09-24 富士ゼロックス株式会社 Cleaning device, charging unit, image carrier unit, and image forming apparatus
JP6001055B2 (en) * 2012-04-18 2016-10-05 キヤノン株式会社 Charging device
JP2014199337A (en) * 2013-03-29 2014-10-23 ブラザー工業株式会社 Charger
CN109116698A (en) * 2018-10-31 2019-01-01 广州奥盛电子科技有限公司 A kind of toner cartridge that can clean aperture plate manually

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324291A (en) * 1964-07-06 1967-06-06 Xerox Corp Corona generating device with means to cause air flow therethrough to maintain the parts free of dust accumulation
US3578970A (en) * 1968-05-03 1971-05-18 Plastic Coating Corp Variable width corona discharge apparatus with means to shield or vary a predetermined length of a corona discharge wire
US3770972A (en) * 1972-09-11 1973-11-06 Savin Business Machines Corp Corona charger configuration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193159A (en) * 1986-05-16 1988-02-03 Sharp Kk Cleaning elements in electrophotographic copiers
GB2193159B (en) * 1986-05-16 1991-01-30 Sharp Kk Electrographic image recording apparatus
US5089850A (en) * 1986-05-16 1992-02-18 Sharp Kabushiki Kaisha Image forming unit with a charger wire and optics cleaning mechanism

Also Published As

Publication number Publication date
DE2500188B2 (en) 1979-01-18
FR2258024B1 (en) 1979-02-23
JPS5743901B2 (en) 1982-09-17
DE2500188C3 (en) 1979-09-20
NL7500540A (en) 1975-07-18
US3875407A (en) 1975-04-01
CA1058274A (en) 1979-07-10
FR2258024A1 (en) 1975-08-08
DE2500188A1 (en) 1975-07-17
JPS50115042A (en) 1975-09-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee