EP0379167A3 - Toner replenishing device - Google Patents

Toner replenishing device Download PDF

Info

Publication number
EP0379167A3
EP0379167A3 EP19900100905 EP90100905A EP0379167A3 EP 0379167 A3 EP0379167 A3 EP 0379167A3 EP 19900100905 EP19900100905 EP 19900100905 EP 90100905 A EP90100905 A EP 90100905A EP 0379167 A3 EP0379167 A3 EP 0379167A3
Authority
EP
European Patent Office
Prior art keywords
toner
feeding roller
opening
magnetic brush
agitating part
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.)
Withdrawn
Application number
EP19900100905
Other languages
German (de)
French (fr)
Other versions
EP0379167A2 (en
Inventor
Mitsugu Nemoto
Noboru Koizumi
Shigeru Okazaki
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 JP1011100A external-priority patent/JPH02190884A/en
Priority claimed from JP1011096A external-priority patent/JPH02190880A/en
Priority claimed from JP1011095A external-priority patent/JPH02190879A/en
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of EP0379167A2 publication Critical patent/EP0379167A2/en
Publication of EP0379167A3 publication Critical patent/EP0379167A3/en
Withdrawn legal-status Critical Current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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

The invention provides a developing apparatus (10) in which toner is mixed with magnetic carrier particles by agitator in an agitating part (12) so as to form two component type developer. The device for feeding toner has a rotatable feeding roller (3) disposed above the agitating part (12) of said developing apparatus (10) for feeding toner thereto, the feeding roller including plural magnets therein so that magnetic carrier particles are attracted to form magnetic brush around the circumference of the feeding roller and toner is conveyed by the magnetic brush with the rotation of the feeding roller. Between the agitating part (12) and the feeding roller (3), there is provided a partition having an opening positioned beneath the feeding roller so that the magnetic brush passes across the opening and the conveyed toner drops into the agitating part through the opening. At one side of the periphery of the opening, there is provided a prevention plate (5) for preventing toner leakage, and at another side of the periphery of the opening opposite to the one side, there is provided a regulating plate (6) for regulating a height of said magnetic brush.
EP19900100905 1989-01-20 1990-01-17 Toner replenishing device Withdrawn EP0379167A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP11095/89 1989-01-20
JP1011100A JPH02190884A (en) 1989-01-20 1989-01-20 Toner replenishing device
JP11096/89 1989-01-20
JP1011096A JPH02190880A (en) 1989-01-20 1989-01-20 Toner replenishing device
JP1011095A JPH02190879A (en) 1989-01-20 1989-01-20 Toner replenishing device
JP11100/89 1989-01-20

Publications (2)

Publication Number Publication Date
EP0379167A2 EP0379167A2 (en) 1990-07-25
EP0379167A3 true EP0379167A3 (en) 1992-05-27

Family

ID=27279269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900100905 Withdrawn EP0379167A3 (en) 1989-01-20 1990-01-17 Toner replenishing device

Country Status (1)

Country Link
EP (1) EP0379167A3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003335A (en) * 1974-05-21 1977-01-18 Minolta Camera Kabushiki Kaisha Developing material applicator
US4502412A (en) * 1983-04-22 1985-03-05 Xerox Corporation Apparatus for metering marking particles onto a developer roller
DE3840712A1 (en) * 1987-12-04 1989-06-15 Konishiroku Photo Ind DEVICE FOR DEVELOPING A LATENT IMAGE GENERATED ON A PHOTO RECEPTOR

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56150768A (en) * 1980-04-23 1981-11-21 Toshiba Corp Developer replenishing device
JPS627073A (en) * 1985-07-03 1987-01-14 Konishiroku Photo Ind Co Ltd Developing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003335A (en) * 1974-05-21 1977-01-18 Minolta Camera Kabushiki Kaisha Developing material applicator
US4502412A (en) * 1983-04-22 1985-03-05 Xerox Corporation Apparatus for metering marking particles onto a developer roller
DE3840712A1 (en) * 1987-12-04 1989-06-15 Konishiroku Photo Ind DEVICE FOR DEVELOPING A LATENT IMAGE GENERATED ON A PHOTO RECEPTOR

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 178 (P-584)(2625) 9 June 1987 & JP-A-62 007 073 ( KONISHIROKU PHOTO ) 14 January 1987 *
PATENT ABSTRACTS OF JAPAN vol. 6, no. 30 (P-103)(908) 23 February 1982 & JP-A-56 150 768 ( TOKYO SHIBAURA DENKI ) 21 November 1981 *

Also Published As

Publication number Publication date
EP0379167A2 (en) 1990-07-25

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