GB1300865A - Improvements in and relating to electro-photographic developing arrangements and processes - Google Patents

Improvements in and relating to electro-photographic developing arrangements and processes

Info

Publication number
GB1300865A
GB1300865A GB01308/70A GB1130870A GB1300865A GB 1300865 A GB1300865 A GB 1300865A GB 01308/70 A GB01308/70 A GB 01308/70A GB 1130870 A GB1130870 A GB 1130870A GB 1300865 A GB1300865 A GB 1300865A
Authority
GB
United Kingdom
Prior art keywords
belt
drum
brush
toner
electro
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
GB01308/70A
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 GB1300865A publication Critical patent/GB1300865A/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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0801—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer for cascading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

1300865 Electro-photographic apparatus RICOH K K 10 March 1970 [15 March 1969] 11308/70 Heading G2H A non-magnetic belt 46 passes adjacent a magnetized belt 43, so as to pick up toner from a reservoir 39 and then moves away from the belt 43 to allow the toner to deposit on an electrostatic latent image formed on a drum 31. Preferably, belt 46 is vibrated by an oscillating guide roller 44. Belt 46 may comprise fabric, rubber or resin optionally with an aluminium or stainless steel layer or may comprise a non-magnetic metal sheet. Belt 46 may run parallel to the drum for a distance to act as a development electrode being spaced from the drum by a plate (147) Fig. 4 (not shown). Belt 43 may comprise fabric or rubber with magnetic insets (21b) Figs.2A, 2B (not shown). Excess toner is cleared from drum 31 by a brush 49 of cotton, feathers, paper or silk; the deveoped image is transferred, and drum 31 is cleared by a brush 55 of similar materials to those of brush 49.
GB01308/70A 1969-03-15 1970-03-10 Improvements in and relating to electro-photographic developing arrangements and processes Expired GB1300865A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981369 1969-03-15

Publications (1)

Publication Number Publication Date
GB1300865A true GB1300865A (en) 1972-12-20

Family

ID=12009756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01308/70A Expired GB1300865A (en) 1969-03-15 1970-03-10 Improvements in and relating to electro-photographic developing arrangements and processes

Country Status (4)

Country Link
US (1) US3678895A (en)
DE (1) DE2012106A1 (en)
FR (1) FR2034969A1 (en)
GB (1) GB1300865A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139922A (en) * 1983-05-11 1984-11-21 Rhone Poulenc Syst Developing a latent image formed on a magnetic surface

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900001A (en) * 1971-05-25 1975-08-19 Xerox Corp Developing apparatus
US3906121A (en) * 1971-05-25 1975-09-16 Xerox Corp Electrostatic development method using magnetic brush configuration transport
US3825936A (en) * 1972-05-24 1974-07-23 Data Interface Toner applicator for magnetic printing system
US3921578A (en) * 1972-07-03 1975-11-25 Itek Corp Power cascade electrophotographic development
US3880119A (en) * 1973-12-20 1975-04-29 Xerox Corp Development apparatus
US3993022A (en) * 1975-08-01 1976-11-23 Addressograph Multigraph Corporation Apparatus for removing ferrous particulate matter from copy paper in an electrostatic copier
US4116555A (en) * 1975-10-29 1978-09-26 Xerox Corporation Background removal apparatus
US4370056A (en) * 1981-02-05 1983-01-25 Xerox Corporation Development system
JP4853963B2 (en) * 2006-05-15 2012-01-11 株式会社リコー Developing device, process cartridge, and image forming apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832311A (en) * 1956-01-10 1958-04-29 Haloid Co Apparatus for development of electrostatic images
US3117891A (en) * 1960-09-26 1964-01-14 Xerox Corp Xerographic apparatus
US3257223A (en) * 1962-11-01 1966-06-21 Xerox Corp Electrostatic powder cloud xerographic development method and apparatus
US3376852A (en) * 1966-12-27 1968-04-09 Xerox Corp Dielectric belt developing
US3584601A (en) * 1968-10-28 1971-06-15 Xerox Corp Magnetic brush belt development

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139922A (en) * 1983-05-11 1984-11-21 Rhone Poulenc Syst Developing a latent image formed on a magnetic surface
US4613554A (en) * 1983-05-11 1986-09-23 Rhone-Poulenc Systemes Process for developing a latent image formed on a magnetic surface, device for carrying out the process and printing apparatus containing the said device

Also Published As

Publication number Publication date
FR2034969A1 (en) 1970-12-18
US3678895A (en) 1972-07-25
DE2012106A1 (en) 1970-09-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees