DEVELOPING ROLLER, DEVELOPING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To provide a developing roller, a developing apparatus, a process cartridge, and an image forming apparatus that improve carrier sticking without causing side effects such as ground staining. SOLUTION: A magnetic pole 10 adjacent to the developing pole 7 of a magnet roll downst...

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Bibliographic Details
Main Authors KAMOI SUMIO, KAMIYA NORIYUKI, IMAMURA TAKESHI, KAKEGAWA MIEKO, HIZUKA KYOTA
Format Patent
LanguageEnglish
Published 14.07.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
BEARINGS
BLASTING
CINEMATOGRAPHY
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HOLOGRAPHY
INDUCTANCES
LIGHTING
MAGNETOGRAPHY
MAGNETS
MECHANICAL ENGINEERING
PHOTOGRAPHY
PHYSICS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SHAFTS
THERMAL INSULATION IN GENERAL
TRANSFORMERS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a developing roller, a developing apparatus, a process cartridge, and an image forming apparatus that improve carrier sticking without causing side effects such as ground staining. SOLUTION: A magnetic pole 10 adjacent to the developing pole 7 of a magnet roll downstream in a developer conveyance direction has a peak magnetic flux density on a developing sleeve 4 equal to or greater than that of the developing pole, and has a half value width, which is the width of the magnetic pole at which a magnetic flux density of one-half the peak magnetic flux density is exhibited, such that a magnetic force is larger than that of the developing pole. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040274933