GB1247922A - Improvements in and relating to developing solutions and to methods and apparatus for making same - Google Patents

Improvements in and relating to developing solutions and to methods and apparatus for making same

Info

Publication number
GB1247922A
GB1247922A GB56177/68A GB5617768A GB1247922A GB 1247922 A GB1247922 A GB 1247922A GB 56177/68 A GB56177/68 A GB 56177/68A GB 5617768 A GB5617768 A GB 5617768A GB 1247922 A GB1247922 A GB 1247922A
Authority
GB
United Kingdom
Prior art keywords
particles
liquid
carrier liquid
electro
photographic
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
GB56177/68A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1247922A publication Critical patent/GB1247922A/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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/104—Preparing, mixing, transporting or dispensing developer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Liquid Developers In Electrophotography (AREA)

Abstract

1,247,922. Electro-photographic liquid developers. RICOH K. K. Nov. 27, 1968 [Dec. 5, 1967], No.56177/68. Heading G2H. A liquid electro-photographic developer comprising charged toner particles in an insulating carrier liquid is made by electrostatically charging the particles suspended in air or in the carrier liquid by passing all of the particles through an electrode energized to impart a charge of the same polarity to all the particles, and then mixing them in a quantity of the carrier liquid in a liquid chamber. The invention includes apparatus in which particles suspended in air are blown Fig. 1 or sucked Fig. 2 to pass through an electrode nozzle into carrier liquid or particles already suspended in carrier liquid may be withdrawn from a vessel and returned thereto after passage through an electrode Figs.3 and 4. The latter apparatus may form part of an electro-photographic development apparatus Fig. 7.
GB56177/68A 1967-12-05 1968-11-27 Improvements in and relating to developing solutions and to methods and apparatus for making same Expired GB1247922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7810867 1967-12-05

Publications (1)

Publication Number Publication Date
GB1247922A true GB1247922A (en) 1971-09-29

Family

ID=13652674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56177/68A Expired GB1247922A (en) 1967-12-05 1968-11-27 Improvements in and relating to developing solutions and to methods and apparatus for making same

Country Status (6)

Country Link
US (1) US3603289A (en)
BE (1) BE725004A (en)
DE (1) DE1812473A1 (en)
FR (1) FR1598283A (en)
GB (1) GB1247922A (en)
NL (1) NL6817372A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862849A (en) * 1967-12-05 1975-01-28 Ricoh Kk Method for preparation of developing solution for developing electrostatic latent images
US3784397A (en) * 1970-02-04 1974-01-08 Xerox Corp Imaging system
US3831556A (en) * 1970-03-16 1974-08-27 Fuji Photo Film Co Ltd Liquid developing apparatus of electrostatic latent image
US4003500A (en) * 1970-12-31 1977-01-18 Hoechst Aktiengesellschaft Metering device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1302344B (en) * 1961-02-06
US3368525A (en) * 1965-10-04 1968-02-13 American Photocopy Equip Co Liquid developer system for photocopy machine

Also Published As

Publication number Publication date
US3603289A (en) 1971-09-07
NL6817372A (en) 1969-06-09
BE725004A (en) 1969-05-16
DE1812473A1 (en) 1969-07-03
FR1598283A (en) 1970-07-06

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