DEVELOPER CARRIER AND IMAGE FORMING APPARATUS USING THE SAME

PROBLEM TO BE SOLVED: To provide a developer carrier by which a developer on the developer carrier can have stable and suitable charge and by which an stable image causing no image concentration lowering can be obtained even when repeatedly used. SOLUTION: The developer carrier is used in an image f...

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Bibliographic Details
Main Author HAMA MASAYUKI
Format Patent
LanguageEnglish
Published 06.06.2003
Edition7
Subjects
BEARINGS
BLASTING
CINEMATOGRAPHY
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
LIGHTING
MAGNETOGRAPHY
MECHANICAL ENGINEERING
PHOTOGRAPHY
PHYSICS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a developer carrier by which a developer on the developer carrier can have stable and suitable charge and by which an stable image causing no image concentration lowering can be obtained even when repeatedly used. SOLUTION: The developer carrier is used in an image forming apparatus in which an electrostatic latent image formed on an image carrier is developed and is visualized by a positively electrifying developer carried on the developer carrier. The developer carrier has a covering resin layer containing inorganic powder 107 of positive triboelectric charge polarity to toner on its surface. Content of the inorganic powder 107 of positive triboelectric charge polarity to the toner in the covering resin layer is gradually increased toward a lower layer in the covering resin layer. COPYRIGHT: (C)2003,JPO
Bibliography:Application Number: JP20010362005