GB1259890A - Cleaning method and apparatus for electrostatic copying machines - Google Patents

Cleaning method and apparatus for electrostatic copying machines

Info

Publication number
GB1259890A
GB1259890A GB4215069A GB4215069A GB1259890A GB 1259890 A GB1259890 A GB 1259890A GB 4215069 A GB4215069 A GB 4215069A GB 4215069 A GB4215069 A GB 4215069A GB 1259890 A GB1259890 A GB 1259890A
Authority
GB
United Kingdom
Prior art keywords
cleaning
toner
toner particles
magnetic
iron
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
GB4215069A
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 Ltd
Original Assignee
Rank Xerox Ltd
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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1259890A publication Critical patent/GB1259890A/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/10—Collecting or recycling waste developer
    • 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
    • G03G21/0047—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 electrostatic or magnetic means; Details thereof, e.g. magnetic pole arrangement of magnetic devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/0005—Cleaning of residual toner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sustainable Development (AREA)
  • Cleaning In Electrography (AREA)
  • Cleaning In General (AREA)

Abstract

1,259,890. Cleaning electrostatic surfaces. RANK XEROX Ltd. Aug. 25, 1969 [Aug. 26, 1968(2)], No.42150/69. Heading G2H. An apparatus for removing toner particles 11 from an electrostatic surface 12 comprises a magnetic brush apparatus 20 carrying magnetic cleaning material 28, e.g., alcoholized iron, carboxal iron, steel, nickel-iron alloys, magnetic oxides, and magnetic ferrites which removes the toner particles by triboelectric attraction, which removal is assisted by applying a D. C. potential 30 to cylinder 22. A corona device 35 changes the surface 12 with the same polarity as the toner. A bias roller 40 engaged by a wiper 50, continuously removes toner from the apparatus 20. In another embodiment, Fig. 2, toner is removed by a fabric cleaning assembly 107 having a cylindrical member 111 carrying fabric cleaning fibres 119 and biased by a D. C. voltage source 133. Cleaning materials may be, for example, acrylic velvet, polypropylene fabric, rayon, mohair; or cotton. A bias roller 150, rotated oppositely to the member 111, is biased by D. C. voltage source 154. An adjustable blade member 179 removes toner particles from the roller 150 for collection in a tray 193 from where they are removed by an auger 195 for reuse. In a further embodiment, Fig. 6 (not shown) an assembly (207) has segments (211) to which different voltages (133 or 275) are applied to improve control in the removal of toner particles.
GB4215069A 1968-08-26 1969-08-25 Cleaning method and apparatus for electrostatic copying machines Expired GB1259890A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75526668A 1968-08-26 1968-08-26
US75526768A 1968-08-26 1968-08-26

Publications (1)

Publication Number Publication Date
GB1259890A true GB1259890A (en) 1972-01-12

Family

ID=27116059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4215069A Expired GB1259890A (en) 1968-08-26 1969-08-25 Cleaning method and apparatus for electrostatic copying machines

Country Status (9)

Country Link
JP (1) JPS4837382B1 (en)
BE (1) BE737957A (en)
DE (1) DE1943392C3 (en)
ES (1) ES370878A1 (en)
FR (1) FR2016404A1 (en)
GB (1) GB1259890A (en)
NL (1) NL168963C (en)
PL (1) PL80388B1 (en)
SE (1) SE348851B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036290A1 (en) * 1980-03-17 1981-09-23 Xerox Corporation Apparatus for cleaning particles from a surface
GB2143776A (en) * 1983-07-25 1985-02-20 Xerox Corp Cleaning photoreceftor surfaces
CN111389817A (en) * 2020-03-24 2020-07-10 杭州新汉杰科技有限公司 Textile fabric is with high-efficient fine hair auxiliary device that goes of neutralization negative charge

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213343A (en) * 1975-07-22 1977-02-01 Ricoh Co Ltd Toner cleaning device for the electrophotographic copying machine
MX150104A (en) * 1979-03-26 1984-03-15 Xerox Corp IMPROVEMENTS IN A DEVELOPMENT SYSTEM
US5481351A (en) * 1993-03-18 1996-01-02 Hitachi Koki Co., Ltd. Electrophotographic recording apparatus having improved residual toner cleaning function
DE102012111712B4 (en) 2012-12-03 2016-04-21 Hartwig Jaeger Faecal container flushing and storage room as well as modular kit for it

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911330A (en) * 1958-04-11 1959-11-03 Haloid Xerox Inc Magnetic brush cleaning

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036290A1 (en) * 1980-03-17 1981-09-23 Xerox Corporation Apparatus for cleaning particles from a surface
GB2143776A (en) * 1983-07-25 1985-02-20 Xerox Corp Cleaning photoreceftor surfaces
CN111389817A (en) * 2020-03-24 2020-07-10 杭州新汉杰科技有限公司 Textile fabric is with high-efficient fine hair auxiliary device that goes of neutralization negative charge

Also Published As

Publication number Publication date
DE1943392B2 (en) 1978-05-03
NL168963C (en) 1982-05-17
NL6912731A (en) 1970-03-02
ES370878A1 (en) 1971-07-01
FR2016404A1 (en) 1970-05-08
DE1943392C3 (en) 1979-01-04
PL80388B1 (en) 1975-08-30
JPS4837382B1 (en) 1973-11-10
DE1943392A1 (en) 1970-03-05
BE737957A (en) 1970-02-25
NL168963B (en) 1981-12-16
SE348851B (en) 1972-09-11

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Legal Events

Date Code Title Description
PS Patent sealed
433D Application made for revocation (sect. 33/1949)
433A Case decided by the comptroller ** patent amended (sect. 33/1949)
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee