GB1252494A - - Google Patents

Info

Publication number
GB1252494A
GB1252494A GB1252494DA GB1252494A GB 1252494 A GB1252494 A GB 1252494A GB 1252494D A GB1252494D A GB 1252494DA GB 1252494 A GB1252494 A GB 1252494A
Authority
GB
United Kingdom
Prior art keywords
development
trough
chute
drum
auger
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
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 filed Critical
Publication of GB1252494A publication Critical patent/GB1252494A/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
    • G03G15/082—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer for immersion

Abstract

1,252,494. Electro-photographic processes. RANK XEROX Ltd. Jan. 9, 1969 [Jan. 11, 1968], No. 1410/69. Heading G2H. An electro-photographic process comprises moving a photo -conductive surface bearing a latent electrostatic image in an endless path having a portion in an uphill direction, holding a quantity of particulate developer material in contact with the upwardly moving surface to cause the development material to flow in an uphill direction in contact with the moving surface through a zone of active development of sufficient length to effect image development, and introducing a continuous supply of developer material to the active zone to support the flow of material therethrough. The photo-conductive surface may be a drum 10, as shown, or alternatively an endless belt. A plate 21 is positioned adjacent the drum surface to form an active development zone 22 which communicates through openings 29, 30 with a supply trough 23 and a return trough 24. The housing 20 is extended on one side of the drum to provide an inclined return chute (40), Figs. 1 and 3 (not shown) augers 25, 26 extending through the troughs into the chute to deliver development material to trough 23 and empty material from trough 24 via the chute. Development material is circulated evenly through the supply trough due to tapering of the helical thread of auger 25. Return auger 26 rotates at a higher rate than delivery auger 25. A D. C. bias is applied to plate 21 so as to form a development electrode.
GB1252494D 1968-01-11 1969-01-09 Expired GB1252494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69708368A 1968-01-11 1968-01-11

Publications (1)

Publication Number Publication Date
GB1252494A true GB1252494A (en) 1971-11-03

Family

ID=24799714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252494D Expired GB1252494A (en) 1968-01-11 1969-01-09

Country Status (9)

Country Link
US (1) US3550556A (en)
JP (1) JPS4835011B1 (en)
BE (1) BE726571A (en)
CH (1) CH498431A (en)
DE (1) DE1900803A1 (en)
FR (1) FR1604314A (en)
GB (1) GB1252494A (en)
NL (1) NL6900329A (en)
SE (1) SE351059B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5457517A (en) * 1993-12-02 1995-10-10 Matsushita Electric Industrial Co., Ltd. Image forming apparatus having a plurality of support surfaces
US5526099A (en) * 1993-12-02 1996-06-11 Matsushita Electric Industrial Co., Ltd. Developing device and an image forming apparatus using the same

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2052835A1 (en) * 1969-10-20 1971-05-06 Minnesota Mining & Mfg Device for applying a magnetizable powder to a base
US3865080A (en) * 1973-01-17 1975-02-11 Xerox Corp Toner pickoff apparatus
JPS50155707U (en) * 1974-06-10 1975-12-24
US3950092A (en) * 1974-09-20 1976-04-13 Xerox Corporation Impeller member for use in transporting particulate material in a reproducing machine
JPS52103121A (en) * 1976-02-24 1977-08-30 Senkoo Kk Freight truck
US4082061A (en) * 1977-03-14 1978-04-04 Xerox Corporation Multi-color development system
EP0656571A1 (en) * 1993-12-02 1995-06-07 Matsushita Electric Industrial Co., Ltd. A developing device and an image forming apparatus using the same
DE19546248A1 (en) * 1995-12-12 1997-06-19 Heidelberger Druckmasch Ag Electrostatic latent image development on movable intermediate carrier
DE19547546A1 (en) * 1995-12-20 1997-07-03 Heidelberger Druckmasch Ag Device for acting on sheets in a sheet delivery
US6510305B1 (en) * 2000-11-28 2003-01-21 Xerox Corporation Toner transport apparatus using flexible augers
US7561833B2 (en) * 2005-11-02 2009-07-14 Eastman Kodak Company Electrographic distributed replenishment apparatus and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5457517A (en) * 1993-12-02 1995-10-10 Matsushita Electric Industrial Co., Ltd. Image forming apparatus having a plurality of support surfaces
US5526099A (en) * 1993-12-02 1996-06-11 Matsushita Electric Industrial Co., Ltd. Developing device and an image forming apparatus using the same

Also Published As

Publication number Publication date
FR1604314A (en) 1971-10-11
JPS4835011B1 (en) 1973-10-25
DE1900803A1 (en) 1969-08-07
NL6900329A (en) 1969-07-15
CH498431A (en) 1970-10-31
US3550556A (en) 1970-12-29
BE726571A (en) 1969-07-07
SE351059B (en) 1972-11-13

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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