JPS55103566A - Developing device - Google Patents

Developing device

Info

Publication number
JPS55103566A
JPS55103566A JP1166279A JP1166279A JPS55103566A JP S55103566 A JPS55103566 A JP S55103566A JP 1166279 A JP1166279 A JP 1166279A JP 1166279 A JP1166279 A JP 1166279A JP S55103566 A JPS55103566 A JP S55103566A
Authority
JP
Japan
Prior art keywords
main pole
magnetic
sleeve
thickness
blade
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
JP1166279A
Other languages
Japanese (ja)
Other versions
JPS5931705B2 (en
Inventor
Junichiro Kanbe
Nagao Hosono
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 JP1166279A priority Critical patent/JPS5931705B2/en
Priority to GB8002775A priority patent/GB2046634B/en
Priority to DE19803003692 priority patent/DE3003692A1/en
Publication of JPS55103566A publication Critical patent/JPS55103566A/en
Publication of JPS5931705B2 publication Critical patent/JPS5931705B2/en
Priority to US06/645,530 priority patent/US4511239A/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To make possible controlling of the thickness of developer layer by providing a means of controlling the relative opposing positions of a magnetic member which defines coating of magnetic developer on the surface of a developer support and the main pole position of magnet within the range where the magnetic force of the magnet acts.
CONSTITUTION: There is a main pole 2 in a stationary magnet roll 1 and is held enclosed by a non-magnetic sleeve 3. A blade 4 of magnetic material is disposed in opposition to the main pole 2 and plays the role of coating insulation-type magnetic toner 5 from a case 6 onto the sleeve 3 at an adequate thickness along with the revolution of the sleeve 3. Since changing the position of the blade 4 opposing to the main pole 2 to near the front edge, central part and rear half part of the main pole results in gradually increasing thickness of the toner layer being formed on the sleeve 3, the control of the thickness of the toner layer is made possible by changing the relative position of the blade 4 with respect to the main pole 2.
COPYRIGHT: (C)1980,JPO&Japio
JP1166279A 1979-02-02 1979-02-02 Toner layer thickness adjustment device Expired JPS5931705B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1166279A JPS5931705B2 (en) 1979-02-02 1979-02-02 Toner layer thickness adjustment device
GB8002775A GB2046634B (en) 1979-02-02 1980-01-28 Magnetic brush developer
DE19803003692 DE3003692A1 (en) 1979-02-02 1980-02-01 DEVELOPMENT DEVICE
US06/645,530 US4511239A (en) 1979-02-02 1984-08-29 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1166279A JPS5931705B2 (en) 1979-02-02 1979-02-02 Toner layer thickness adjustment device

Publications (2)

Publication Number Publication Date
JPS55103566A true JPS55103566A (en) 1980-08-07
JPS5931705B2 JPS5931705B2 (en) 1984-08-03

Family

ID=11784185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1166279A Expired JPS5931705B2 (en) 1979-02-02 1979-02-02 Toner layer thickness adjustment device

Country Status (1)

Country Link
JP (1) JPS5931705B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073659A (en) * 1983-09-30 1985-04-25 Ricoh Co Ltd Controller for layer thickness of magnetic particle
JPS61138271A (en) * 1984-12-11 1986-06-25 Konishiroku Photo Ind Co Ltd Developing device
JPS61201279A (en) * 1985-03-05 1986-09-05 Konishiroku Photo Ind Co Ltd Magnetic brush developing device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073659A (en) * 1983-09-30 1985-04-25 Ricoh Co Ltd Controller for layer thickness of magnetic particle
JPH0535430B2 (en) * 1983-09-30 1993-05-26 Ricoh Kk
JPS61138271A (en) * 1984-12-11 1986-06-25 Konishiroku Photo Ind Co Ltd Developing device
JPH0552943B2 (en) * 1984-12-11 1993-08-06 Konishiroku Photo Ind
JPS61201279A (en) * 1985-03-05 1986-09-05 Konishiroku Photo Ind Co Ltd Magnetic brush developing device
JPH0582582B2 (en) * 1985-03-05 1993-11-19 Konishiroku Photo Ind

Also Published As

Publication number Publication date
JPS5931705B2 (en) 1984-08-03

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