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GB1463890A - Xerographic printing machine - Google Patents

Xerographic printing machine

Info

Publication number
GB1463890A
GB1463890A GB4497474A GB4497474A GB1463890A GB 1463890 A GB1463890 A GB 1463890A GB 4497474 A GB4497474 A GB 4497474A GB 4497474 A GB4497474 A GB 4497474A GB 1463890 A GB1463890 A GB 1463890A
Authority
GB
United Kingdom
Prior art keywords
particles
carrier particles
xerographic printing
printing machine
main reservoir
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
GB4497474A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 US426749A external-priority patent/US3894514A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1463890A publication Critical patent/GB1463890A/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

Landscapes

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

Abstract

1463890 Xerographic printing machines INTERNATIONAL BUSINESS MACHINES CORP 17 Oct 1974 [20 Dec 1973] 44974/74 Heading G2H [Also in Division B 1] A xerographic printing machine has a body of carrier particles 18 which are larger and of a different material from toner particles 22 and 23. Toner particles are entrained in an air stream on being brushed from an imaging surface 11 by brush 30 and passed through a body of the carrier particles 18 to which they adhere by a triboelectric (static) charge development between the respective particles. The charge is essentially greater than that between steel and sulphur. Pump 36 provides the air-flow, toner coated carrier particles are poured into the main reservoir of particles 20 and replaced by less heavily coated carrier particles. Fig. 3 (not shown) details a constant feed of carrier particles between two mesh screens to a main reservoir. Fig. 4 (not shown) provides a mesh screen and vacuum outlet pipe in the main reservoir of particles 20. Basic features of a xerographic printing machine are shown.
GB4497474A 1973-12-20 1974-10-17 Xerographic printing machine Expired GB1463890A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42675073A 1973-12-20 1973-12-20
US426749A US3894514A (en) 1973-12-20 1973-12-20 Toner recovery system

Publications (1)

Publication Number Publication Date
GB1463890A true GB1463890A (en) 1977-02-09

Family

ID=27027163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4497474A Expired GB1463890A (en) 1973-12-20 1974-10-17 Xerographic printing machine

Country Status (2)

Country Link
GB (1) GB1463890A (en)
NL (1) NL7415672A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138376A2 (en) * 1983-09-19 1985-04-24 Kabushiki Kaisha Toshiba Method and apparatus of electrophotography
US4694310A (en) * 1983-09-19 1987-09-15 Kabushiki Kaisha Toshiba Method and apparatus of electrophotography

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138376A2 (en) * 1983-09-19 1985-04-24 Kabushiki Kaisha Toshiba Method and apparatus of electrophotography
EP0138376A3 (en) * 1983-09-19 1985-07-17 Kabushiki Kaisha Toshiba Method and apparatus of electrophotography
US4694310A (en) * 1983-09-19 1987-09-15 Kabushiki Kaisha Toshiba Method and apparatus of electrophotography

Also Published As

Publication number Publication date
NL7415672A (en) 1975-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee