JPS57147672A - Developing device - Google Patents

Developing device

Info

Publication number
JPS57147672A
JPS57147672A JP3318781A JP3318781A JPS57147672A JP S57147672 A JPS57147672 A JP S57147672A JP 3318781 A JP3318781 A JP 3318781A JP 3318781 A JP3318781 A JP 3318781A JP S57147672 A JPS57147672 A JP S57147672A
Authority
JP
Japan
Prior art keywords
magnetic pole
rotation
turning
magnet roll
magnetic
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
JP3318781A
Other languages
Japanese (ja)
Inventor
Takeshi Watanabe
Kimio Nakahata
Fumitaka Kan
Masaaki Sakurai
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 JP3318781A priority Critical patent/JPS57147672A/en
Publication of JPS57147672A publication Critical patent/JPS57147672A/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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To prevent a toner blocking, by reciprocating the magnetic pole in the side of a magnetic field generating member in the rotation or turning direction and the opposite direction of a developer supporting member or rotating or turning this magnetic pole in the rotation or turning direction of the developer supporting member when development is not performed. CONSTITUTION:When development is not performed, a magnetic pole (cut magnetic pole) 21 in the side of a magnet roll 2 facing to a magnetic blade 4 is reciprocated in the same direction (a) as the rotation direction of a sleeve 1 and in the opposite direction (b). Further, the magnetic pole 21 is rotated and moved in the same direction (a) as the rotation direction of the sleeve 1. This reciprocating motion in directions (a) and (b) or rotating and moving motion in the direction (a) of the magnetic pole 21 reciprocates and rotates the magnet roll 2 in a proper angle range or rotates the magnet roll 2 continuously in the direction (a). Otherwise, the magnetic pole 21 is constituted to be able to move independently, and only the magnetic pole 21 is reciprocated in directions (a) and (b).
JP3318781A 1981-03-10 1981-03-10 Developing device Pending JPS57147672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3318781A JPS57147672A (en) 1981-03-10 1981-03-10 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3318781A JPS57147672A (en) 1981-03-10 1981-03-10 Developing device

Publications (1)

Publication Number Publication Date
JPS57147672A true JPS57147672A (en) 1982-09-11

Family

ID=12379480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3318781A Pending JPS57147672A (en) 1981-03-10 1981-03-10 Developing device

Country Status (1)

Country Link
JP (1) JPS57147672A (en)

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