JPS578566A - Developing device of electrophotographic copying machine - Google Patents

Developing device of electrophotographic copying machine

Info

Publication number
JPS578566A
JPS578566A JP8307480A JP8307480A JPS578566A JP S578566 A JPS578566 A JP S578566A JP 8307480 A JP8307480 A JP 8307480A JP 8307480 A JP8307480 A JP 8307480A JP S578566 A JPS578566 A JP S578566A
Authority
JP
Japan
Prior art keywords
blade
sleeve
magnetic toner
rotation direction
circumference
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
JP8307480A
Other languages
Japanese (ja)
Other versions
JPH0158513B2 (en
Inventor
Ryutaro Yamagata
Nobuhiko Kozuka
Hitoshi Nishihama
Shigeo Koyama
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial 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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to JP8307480A priority Critical patent/JPS578566A/en
Publication of JPS578566A publication Critical patent/JPS578566A/en
Publication of JPH0158513B2 publication Critical patent/JPH0158513B2/ja
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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To prevent a magnetic toner from blocking, by installing a blade so as to leave the circumference of a developing sleeve farther from it as it goes downstream in the sleeve rotation direction from the opening of a magnetic toner feeder to a brush cutting member. CONSTITUTION:A blade 76 is installed on the upstream side of a brush cutting member 75 along the rotation direction of a developing sleeve 71 and on the downstream side of the feed opening 89 of a magnetic toner container. This blade 76 inclines getting farther from the sleeve 71 as it goes downstream in the rotation direction 85, the base end 76a is fixed to a frame 78, and the free end 76b slides in contact with the sleeve 71 on all the length. The blade 76 is provided with plural lateral through holes 106, thus permitting the magnetic toner to drop through the holes 106 after being once separated from the circumference of the sleeve 71 by the blade 76, and therefore, the toner to be always fluidizable and to cause no blocking.
JP8307480A 1980-06-18 1980-06-18 Developing device of electrophotographic copying machine Granted JPS578566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8307480A JPS578566A (en) 1980-06-18 1980-06-18 Developing device of electrophotographic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8307480A JPS578566A (en) 1980-06-18 1980-06-18 Developing device of electrophotographic copying machine

Publications (2)

Publication Number Publication Date
JPS578566A true JPS578566A (en) 1982-01-16
JPH0158513B2 JPH0158513B2 (en) 1989-12-12

Family

ID=13792024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8307480A Granted JPS578566A (en) 1980-06-18 1980-06-18 Developing device of electrophotographic copying machine

Country Status (1)

Country Link
JP (1) JPS578566A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103310A2 (en) * 1980-01-31 1984-03-21 Mita Industrial Co. Ltd. Developing device for an electrostatic copying apparatus
US4523833A (en) * 1983-10-28 1985-06-18 Xerox Corporation Developer roller metering blade
JPS6153677A (en) * 1984-08-23 1986-03-17 Minolta Camera Co Ltd Dry developing device
US5188057A (en) * 1989-09-18 1993-02-23 Kabushiki Kaisha Toshiba Developing apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132A (en) * 1976-06-23 1978-01-05 Ricoh Co Ltd Magnetic brush developing device
JPS54136339A (en) * 1978-04-14 1979-10-23 Toshiba Corp Developing apparatus
JPS55117177A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device
JPS55117176A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132A (en) * 1976-06-23 1978-01-05 Ricoh Co Ltd Magnetic brush developing device
JPS54136339A (en) * 1978-04-14 1979-10-23 Toshiba Corp Developing apparatus
JPS55117177A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device
JPS55117176A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103310A2 (en) * 1980-01-31 1984-03-21 Mita Industrial Co. Ltd. Developing device for an electrostatic copying apparatus
US4523833A (en) * 1983-10-28 1985-06-18 Xerox Corporation Developer roller metering blade
JPS6153677A (en) * 1984-08-23 1986-03-17 Minolta Camera Co Ltd Dry developing device
JPH0448232B2 (en) * 1984-08-23 1992-08-06 Minolta Camera Kk
US5188057A (en) * 1989-09-18 1993-02-23 Kabushiki Kaisha Toshiba Developing apparatus

Also Published As

Publication number Publication date
JPH0158513B2 (en) 1989-12-12

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