DE4003974A1 - Entwicklungseinrichtung mit einer abdichtkonstruktion zum verhindern von tonerleckschaden - Google Patents

Entwicklungseinrichtung mit einer abdichtkonstruktion zum verhindern von tonerleckschaden

Info

Publication number
DE4003974A1
DE4003974A1 DE19904003974 DE4003974A DE4003974A1 DE 4003974 A1 DE4003974 A1 DE 4003974A1 DE 19904003974 DE19904003974 DE 19904003974 DE 4003974 A DE4003974 A DE 4003974A DE 4003974 A1 DE4003974 A1 DE 4003974A1
Authority
DE
Germany
Prior art keywords
thin film
film sleeve
sealing
toner
peripheral surface
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.)
Granted
Application number
DE19904003974
Other languages
German (de)
English (en)
Other versions
DE4003974C2 (enrdf_load_stackoverflow
Inventor
Hitoshi Sekino
Hirofumi Hasegawa
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Publication of DE4003974A1 publication Critical patent/DE4003974A1/de
Application granted granted Critical
Publication of DE4003974C2 publication Critical patent/DE4003974C2/de
Granted 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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0817—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the lateral sealing at both sides of the donor member with respect to the developer carrying direction
    • 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
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G03G15/0898—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
DE19904003974 1989-02-10 1990-02-09 Entwicklungseinrichtung mit einer abdichtkonstruktion zum verhindern von tonerleckschaden Granted DE4003974A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1031825A JP2819583B2 (ja) 1989-02-10 1989-02-10 現像装置

Publications (2)

Publication Number Publication Date
DE4003974A1 true DE4003974A1 (de) 1990-08-16
DE4003974C2 DE4003974C2 (enrdf_load_stackoverflow) 1992-05-07

Family

ID=12341858

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19904003974 Granted DE4003974A1 (de) 1989-02-10 1990-02-09 Entwicklungseinrichtung mit einer abdichtkonstruktion zum verhindern von tonerleckschaden

Country Status (2)

Country Link
JP (1) JP2819583B2 (enrdf_load_stackoverflow)
DE (1) DE4003974A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0506047A3 (en) * 1991-03-29 1992-11-19 Fujitsu Limited Developing unit for use in electronic printing apparatus
GB2394307A (en) * 2002-10-17 2004-04-21 Hewlett Packard Development Co Print cartridge with seal to prevent toner leakage.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729762A1 (de) * 1986-09-05 1988-03-17 Ricoh Kk Elektrostatische aufzeichnungseinrichtung
US4791882A (en) * 1986-10-08 1988-12-20 Minolta Camera Kabushiki Kaisha Loosely mounted outer sleeve member with biasing means
US4800411A (en) * 1986-04-10 1989-01-24 Ricoh Company, Ltd. Magnetic brush development device for electrostatic latent images

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800411A (en) * 1986-04-10 1989-01-24 Ricoh Company, Ltd. Magnetic brush development device for electrostatic latent images
DE3729762A1 (de) * 1986-09-05 1988-03-17 Ricoh Kk Elektrostatische aufzeichnungseinrichtung
US4791882A (en) * 1986-10-08 1988-12-20 Minolta Camera Kabushiki Kaisha Loosely mounted outer sleeve member with biasing means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0506047A3 (en) * 1991-03-29 1992-11-19 Fujitsu Limited Developing unit for use in electronic printing apparatus
US5233390A (en) * 1991-03-29 1993-08-03 Fujitsu Limited Electronic printer developing unit with bracket for positioning magnetic roller and doctor blade
GB2394307A (en) * 2002-10-17 2004-04-21 Hewlett Packard Development Co Print cartridge with seal to prevent toner leakage.
GB2394307B (en) * 2002-10-17 2006-03-01 Hewlett Packard Development Co Print cartridge

Also Published As

Publication number Publication date
DE4003974C2 (enrdf_load_stackoverflow) 1992-05-07
JPH02230172A (ja) 1990-09-12
JP2819583B2 (ja) 1998-10-30

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MINOLTA CO., LTD., OSAKA, JP

8339 Ceased/non-payment of the annual fee