JPS5691266A - Developing device - Google Patents

Developing device

Info

Publication number
JPS5691266A
JPS5691266A JP16956879A JP16956879A JPS5691266A JP S5691266 A JPS5691266 A JP S5691266A JP 16956879 A JP16956879 A JP 16956879A JP 16956879 A JP16956879 A JP 16956879A JP S5691266 A JPS5691266 A JP S5691266A
Authority
JP
Japan
Prior art keywords
magnet
developing
magnets
component type
type insulation
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.)
Pending
Application number
JP16956879A
Other languages
Japanese (ja)
Inventor
Kimio Nakahata
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 JP16956879A priority Critical patent/JPS5691266A/en
Publication of JPS5691266A publication Critical patent/JPS5691266A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To perform uniform developing with a one-component type insulation characteristic toner by setting magnetism of the magnets a magnet roll as a specified value to sharply decrease the magnetic flux on the lower stream side of a developing section thereby forming a required magnetic brush.
CONSTITUTION: A one-component type insulation characteristic toner layer of thin thickness regulated according to a doctor 3 is formed on a rotary sleeve 2 by the magnets 4W8 of a magnet roll. A magnet shielding member 9 is provided to the magnet 6, out of these magnets 4W8, which opposes to the developing part of a photosensitive drum 1 at a predetermined angle, and since the magnetic pole thereof is made as specified, the magnetic flux on the lower stream side of the developing section is sharply decreased. This causes the toner layer of the region of the sleeve 2 corresponding to the developing section oppsing to the magnet 6 to build up to form a good magnetic brush, whereby the uniform developing free from unevenness is accomplished by using the one-component type insulation toner.
COPYRIGHT: (C)1981,JPO&Japio
JP16956879A 1979-12-26 1979-12-26 Developing device Pending JPS5691266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16956879A JPS5691266A (en) 1979-12-26 1979-12-26 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16956879A JPS5691266A (en) 1979-12-26 1979-12-26 Developing device

Publications (1)

Publication Number Publication Date
JPS5691266A true JPS5691266A (en) 1981-07-24

Family

ID=15888874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16956879A Pending JPS5691266A (en) 1979-12-26 1979-12-26 Developing device

Country Status (1)

Country Link
JP (1) JPS5691266A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186768A (en) * 1982-04-24 1983-10-31 Canon Inc Developing device
JPS634281A (en) * 1986-06-24 1988-01-09 Canon Inc Developing device
JPS642263U (en) * 1987-06-24 1989-01-09

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186768A (en) * 1982-04-24 1983-10-31 Canon Inc Developing device
JPH0454954B2 (en) * 1982-04-24 1992-09-01 Canon Kk
JPS634281A (en) * 1986-06-24 1988-01-09 Canon Inc Developing device
JPS642263U (en) * 1987-06-24 1989-01-09

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