JPS6167060A - Developing device - Google Patents

Developing device

Info

Publication number
JPS6167060A
JPS6167060A JP59189058A JP18905884A JPS6167060A JP S6167060 A JPS6167060 A JP S6167060A JP 59189058 A JP59189058 A JP 59189058A JP 18905884 A JP18905884 A JP 18905884A JP S6167060 A JPS6167060 A JP S6167060A
Authority
JP
Japan
Prior art keywords
magnetic
roller
brush
magnet
toner
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
JP59189058A
Other languages
Japanese (ja)
Inventor
Hatsuo Tajima
Kimio Nakahata
Hidemi Egami
Fumitaka Kan
Atsushi Hosoi
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 JP59189058A priority Critical patent/JPS6167060A/en
Priority to US06/652,570 priority patent/US4669852A/en
Publication of JPS6167060A publication Critical patent/JPS6167060A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/081—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer handling means after the supply and before the regulating, e.g. means for preventing developer blocking
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/0602—Developer
    • G03G2215/0604—Developer solid type
    • G03G2215/0614—Developer solid type one-component
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/0634—Developing device
    • G03G2215/0636—Specific type of dry developer device

Abstract

PURPOSE:To easily separate magnetic particles at a magnetic particle restraining member part and toner speed up the operation of an image forming device by using a magnetic means and a developer holding means, and arranging a magnetic means below a developer holding means. CONSTITUTION:A magnetic roller 8 consists of a rotatably nonmagnetic sleeve 9 and a magnet 10 fixed in the sleeve 9, and a magnetic brush is formed of a developer mixed body of nonmagnetic toner and magnetic particles, which are conveyed to a position facing a magnetic roller 11. The toner and magnetic particles conveyed by the magnetic roller 8 are napped where they contact or are close to the magnet roller, thereby forming the magnetic brush 12. The magnetic brush is attracted onto the magnetic roller with magnetic poles of a magnet 18, and part of the magnetic brush is passed from the magnetic roller to a developing roller. Magnetic particles in the developer mixed body sticking on the developing roller are restrained by a magnetic pole N3 and the magnetic particle restraining member 15.
JP59189058A 1983-09-27 1984-09-10 Developing device Pending JPS6167060A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59189058A JPS6167060A (en) 1984-09-10 1984-09-10 Developing device
US06/652,570 US4669852A (en) 1983-09-27 1984-09-20 Developing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59189058A JPS6167060A (en) 1984-09-10 1984-09-10 Developing device

Publications (1)

Publication Number Publication Date
JPS6167060A true JPS6167060A (en) 1986-04-07

Family

ID=16234583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59189058A Pending JPS6167060A (en) 1983-09-27 1984-09-10 Developing device

Country Status (1)

Country Link
JP (1) JPS6167060A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632963U (en) * 1986-06-20 1988-01-09
JPS6341863A (en) * 1986-08-07 1988-02-23 Konica Corp Developing method for electrostatic latent image
JP2005274924A (en) * 2004-03-24 2005-10-06 Kyocera Mita Corp Developing device
JP2006106027A (en) * 2004-09-30 2006-04-20 Kyocera Mita Corp Developing device
JP2007322565A (en) * 2006-05-31 2007-12-13 Kyocera Mita Corp Developing device and image forming apparatus equipped with the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632963U (en) * 1986-06-20 1988-01-09
JPS6341863A (en) * 1986-08-07 1988-02-23 Konica Corp Developing method for electrostatic latent image
JP2005274924A (en) * 2004-03-24 2005-10-06 Kyocera Mita Corp Developing device
JP4570382B2 (en) * 2004-03-24 2010-10-27 京セラミタ株式会社 Development device
JP2006106027A (en) * 2004-09-30 2006-04-20 Kyocera Mita Corp Developing device
JP4587763B2 (en) * 2004-09-30 2010-11-24 京セラミタ株式会社 Development device
JP2007322565A (en) * 2006-05-31 2007-12-13 Kyocera Mita Corp Developing device and image forming apparatus equipped with the same

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