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JPS55117168A - Developing device - Google Patents

Developing device

Info

Publication number
JPS55117168A
JPS55117168A JP1773879A JP1773879A JPS55117168A JP S55117168 A JPS55117168 A JP S55117168A JP 1773879 A JP1773879 A JP 1773879A JP 1773879 A JP1773879 A JP 1773879A JP S55117168 A JPS55117168 A JP S55117168A
Authority
JP
Japan
Prior art keywords
developer
removing plate
developing sleeve
contact
faithfullness
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
JP1773879A
Other languages
Japanese (ja)
Other versions
JPS6367187B2 (en
Inventor
Nagao Hosono
Nobuyuki Miyake
Junichiro Kanbe
Nobuo Tsukada
Kozo Arao
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 JP1773879A priority Critical patent/JPS55117168A/en
Priority to US06/118,926 priority patent/US4365586A/en
Priority to GB8004377A priority patent/GB2046635B/en
Priority to DE19803005756 priority patent/DE3005756A1/en
Publication of JPS55117168A publication Critical patent/JPS55117168A/en
Publication of JPS6367187B2 publication Critical patent/JPS6367187B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To achieve good image reproducibility, high faithfullness and longer service life of developer by so providing a developer removing plate having developer passing openings on the feed mean upper stream side wall as to make contact with the surface of a developer holding means.
CONSTITUTION: This comprises once scraping off the developer by the developer removing plate 8 disposed in contact with the surface of a sleeve 2 prior to feeding of the developer by a hopper 5, wherein the developer removing plate 8 composed of elastic material such as phosphor bronze is so mounted to the end of the moving direction upper stream side wall 7 on the developing sleeve 2 out of hopper walls 6, 7 as to make contact with the surface of the developing sleeve. The mounting angle is the angle in the counter direction with respect to the moving direction of the developer layer such as the one at which the developer is scooped up. Multiple holes 9 are provided to this removing plate in the portions near those in contact with the developing sleeve. Thereby, the reproducibility of the images is good, faithfullness is made high and the service life of the developer may be prolonged.
COPYRIGHT: (C)1980,JPO&Japio
JP1773879A 1979-02-15 1979-02-15 Developing device Granted JPS55117168A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1773879A JPS55117168A (en) 1979-02-15 1979-02-15 Developing device
US06/118,926 US4365586A (en) 1979-02-15 1980-02-06 Developing device
GB8004377A GB2046635B (en) 1979-02-15 1980-02-08 Magnet brush developer
DE19803005756 DE3005756A1 (en) 1979-02-15 1980-02-15 DEVELOPMENT DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1773879A JPS55117168A (en) 1979-02-15 1979-02-15 Developing device

Publications (2)

Publication Number Publication Date
JPS55117168A true JPS55117168A (en) 1980-09-09
JPS6367187B2 JPS6367187B2 (en) 1988-12-23

Family

ID=11952079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1773879A Granted JPS55117168A (en) 1979-02-15 1979-02-15 Developing device

Country Status (1)

Country Link
JP (1) JPS55117168A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786868A (en) * 1980-11-20 1982-05-31 Canon Inc Developing device
JPS57129467A (en) * 1981-02-04 1982-08-11 Ricoh Co Ltd Magnetic brush developer
JPS6067978A (en) * 1983-09-22 1985-04-18 Ricoh Co Ltd Developing device
JPS6380570U (en) * 1986-11-14 1988-05-27

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523433U (en) * 1975-06-24 1977-01-11
JPS5222926A (en) * 1975-08-13 1977-02-21 Minolta Camera Co Ltd Dry type development process for the electrophotography
JPS53132A (en) * 1976-06-23 1978-01-05 Ricoh Co Ltd Magnetic brush developing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523433U (en) * 1975-06-24 1977-01-11
JPS5222926A (en) * 1975-08-13 1977-02-21 Minolta Camera Co Ltd Dry type development process for the electrophotography
JPS53132A (en) * 1976-06-23 1978-01-05 Ricoh Co Ltd Magnetic brush developing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786868A (en) * 1980-11-20 1982-05-31 Canon Inc Developing device
JPS57129467A (en) * 1981-02-04 1982-08-11 Ricoh Co Ltd Magnetic brush developer
JPS6067978A (en) * 1983-09-22 1985-04-18 Ricoh Co Ltd Developing device
JPS6380570U (en) * 1986-11-14 1988-05-27

Also Published As

Publication number Publication date
JPS6367187B2 (en) 1988-12-23

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