JPS5459943A - Developing device - Google Patents

Developing device

Info

Publication number
JPS5459943A
JPS5459943A JP12650277A JP12650277A JPS5459943A JP S5459943 A JPS5459943 A JP S5459943A JP 12650277 A JP12650277 A JP 12650277A JP 12650277 A JP12650277 A JP 12650277A JP S5459943 A JPS5459943 A JP S5459943A
Authority
JP
Japan
Prior art keywords
sleeve
developer
scooping
hopper
shaft direction
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
JP12650277A
Other languages
Japanese (ja)
Other versions
JPS6257991B2 (en
Inventor
Teruo Morikawa
Hiroyuki Miyake
Katsuhiko Yamada
Kenji Okawara
Atsushi Kubota
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.)
Canon Inc
Original Assignee
Canon 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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP12650277A priority Critical patent/JPS5459943A/en
Publication of JPS5459943A publication Critical patent/JPS5459943A/en
Publication of JPS6257991B2 publication Critical patent/JPS6257991B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To prevent flying off of developer in the sleeve revolving shaft direction before developing by disposing a developer defining member and a scooping up member to the end part of the sleeve, in a magnetic brush developing device. CONSTITUTION:A sealing material 23 composed of felt, sponge or the like is provided on approximately the entire circumference of the recess 18a of a sleeve 18 which conveys the developer while holding the same on its outside circumferential surface by the magnetic force of a rotating magnet 20. A sccoping-up member 24 composed of a metal piece, elastic blade or the like is disposed between said sealing member 23 and the shoulder part of the sleeve 18 in such a manner that it intermeshes therewith. This member is then fixed to the stationary blade 20 of a hopper 15 by means of screws 25. Then, if the developer being conveyed by the sleeve 18 moves in the rotating shaft direction of the sleeve 18 and tries to fly off, it is guided to the scooping-up member 24 side by the sealing member 23 and is scooped up into the hopper 15.
JP12650277A 1977-10-21 1977-10-21 Developing device Granted JPS5459943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12650277A JPS5459943A (en) 1977-10-21 1977-10-21 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12650277A JPS5459943A (en) 1977-10-21 1977-10-21 Developing device

Publications (2)

Publication Number Publication Date
JPS5459943A true JPS5459943A (en) 1979-05-15
JPS6257991B2 JPS6257991B2 (en) 1987-12-03

Family

ID=14936786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12650277A Granted JPS5459943A (en) 1977-10-21 1977-10-21 Developing device

Country Status (1)

Country Link
JP (1) JPS5459943A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60249174A (en) * 1984-05-25 1985-12-09 Ricoh Co Ltd Developing device
JPS6430567U (en) * 1987-08-19 1989-02-23
JPH01100150U (en) * 1987-12-23 1989-07-05
JPH01100149U (en) * 1987-12-23 1989-07-05
JPH034255A (en) * 1989-05-31 1991-01-10 Canon Inc Developing device
JPH0675472A (en) * 1993-08-11 1994-03-18 Matsushita Graphic Commun Syst Inc Developing device
EP0869403A2 (en) * 1997-03-31 1998-10-07 Kabushiki Kaisha Toshiba Developing device
US7627264B2 (en) 2005-09-30 2009-12-01 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03214188A (en) * 1990-01-18 1991-09-19 Victor Co Of Japan Ltd Language learning device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809012A (en) * 1972-11-24 1974-05-07 Xerox Corp Developer seal
JPS51117051A (en) * 1975-04-07 1976-10-14 K I P:Kk Developing device for electronic duplicator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809012A (en) * 1972-11-24 1974-05-07 Xerox Corp Developer seal
JPS51117051A (en) * 1975-04-07 1976-10-14 K I P:Kk Developing device for electronic duplicator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60249174A (en) * 1984-05-25 1985-12-09 Ricoh Co Ltd Developing device
JPS6430567U (en) * 1987-08-19 1989-02-23
JPH01100150U (en) * 1987-12-23 1989-07-05
JPH01100149U (en) * 1987-12-23 1989-07-05
JPH034255A (en) * 1989-05-31 1991-01-10 Canon Inc Developing device
JPH0675472A (en) * 1993-08-11 1994-03-18 Matsushita Graphic Commun Syst Inc Developing device
EP0869403A2 (en) * 1997-03-31 1998-10-07 Kabushiki Kaisha Toshiba Developing device
EP0869403A3 (en) * 1997-03-31 2000-07-26 Kabushiki Kaisha Toshiba Developing device
US7627264B2 (en) 2005-09-30 2009-12-01 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus

Also Published As

Publication number Publication date
JPS6257991B2 (en) 1987-12-03

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