DEVELOPING DEVICE

PROBLEM TO BE SOLVED: To provide a developing device where toner concentration control can be accurately set by reading a stable value of an output value of a sensor while always maintaining a clean state without generating any toner filming on a detecting surface of a toner sensor. SOLUTION: In the...

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Bibliographic Details
Main Authors ENDO HIROHISA, AISAKA SEIYA, OGAKI SHINJI
Format Patent
LanguageEnglish
Published 12.03.2002
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide a developing device where toner concentration control can be accurately set by reading a stable value of an output value of a sensor while always maintaining a clean state without generating any toner filming on a detecting surface of a toner sensor. SOLUTION: In the device, a toner concentration sensor is installed in a position the sensor crosses at an angle the flux of magnetic force acting between a magnetic pole on the upstream side and a magnetic pole on the downstream side that are adjacent to each other with a restricting plate in between and a magnetic member is installed in a position surrounding a periphery part other than the downstream side of the toner concentration sensor in the sliding direction of developer.
Bibliography:Application Number: JP20000262367