JPS5593177A - Developing device - Google Patents

Developing device

Info

Publication number
JPS5593177A
JPS5593177A JP89079A JP89079A JPS5593177A JP S5593177 A JPS5593177 A JP S5593177A JP 89079 A JP89079 A JP 89079A JP 89079 A JP89079 A JP 89079A JP S5593177 A JPS5593177 A JP S5593177A
Authority
JP
Japan
Prior art keywords
magnetic
sleeve
magnet
doctor blade
opposition
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
JP89079A
Other languages
Japanese (ja)
Other versions
JPS5933916B2 (en
Inventor
Toshiharu Nakamura
Kozo Araya
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 JP89079A priority Critical patent/JPS5933916B2/en
Priority to US06/108,058 priority patent/US4391512A/en
Priority to DE19803000195 priority patent/DE3000195A1/en
Priority to GB8000448A priority patent/GB2045114B/en
Publication of JPS5593177A publication Critical patent/JPS5593177A/en
Publication of JPS5933916B2 publication Critical patent/JPS5933916B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To let the images of good and homogeneous quality be obtained by fixedly providing a magnetic doctor blade in proximity to the surface of a rotating non- magnetic cylindrical sleeve in opposition to the polar position of an internal stationary magnet, in the developing device using one-component magnetic developer.
CONSTITUTION: A magnet 9 is fixedly provided in the non-magnetic cylindrical sleeve 9 provided in opposition to a photosensitive drum 1 and a doctor blade 10 composed of magnetic material is fixedly provided in proximity to the surface of the sleeve 8 of the position opposing to the polar position of said stationary magnet 9. Since the end width A of the doctor blade 10 opposing to the sleeve 8 surface is constituted smaller than the magnetic pole width B of the magnet in the sleeve, magnetic lines of force concentrate in the magnetic material blade 10 and the toner layer defining is made effective by this magnetic force, thus good development is accomplished.
COPYRIGHT: (C)1980,JPO&Japio
JP89079A 1979-01-06 1979-01-06 Toner layer forming device Expired JPS5933916B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP89079A JPS5933916B2 (en) 1979-01-06 1979-01-06 Toner layer forming device
US06/108,058 US4391512A (en) 1979-01-06 1979-12-28 Developing device using magnetic developer
DE19803000195 DE3000195A1 (en) 1979-01-06 1980-01-04 DEVELOPMENT DEVICE FOR MAGNET DEVELOPERS
GB8000448A GB2045114B (en) 1979-01-06 1980-01-07 Magnetic brush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP89079A JPS5933916B2 (en) 1979-01-06 1979-01-06 Toner layer forming device

Publications (2)

Publication Number Publication Date
JPS5593177A true JPS5593177A (en) 1980-07-15
JPS5933916B2 JPS5933916B2 (en) 1984-08-18

Family

ID=11486267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP89079A Expired JPS5933916B2 (en) 1979-01-06 1979-01-06 Toner layer forming device

Country Status (1)

Country Link
JP (1) JPS5933916B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863964A (en) * 1981-10-14 1983-04-16 Ricoh Co Ltd Developing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863964A (en) * 1981-10-14 1983-04-16 Ricoh Co Ltd Developing device

Also Published As

Publication number Publication date
JPS5933916B2 (en) 1984-08-18

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