Image forming apparatus

Provided is an image forming apparatus capable of performing stable charging and thus stable image formation over a long term by changing a charge control method based on various environments. An engine control section 17 serves as a first applied voltage determining unit, obtains a relationship bet...

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Bibliographic Details
Main Authors HOTOMI DAIGO, MAEDA AKIHIRO, OGURA MOTOHIRO
Format Patent
LanguageChinese
English
Published 29.06.2011
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:Provided is an image forming apparatus capable of performing stable charging and thus stable image formation over a long term by changing a charge control method based on various environments. An engine control section 17 serves as a first applied voltage determining unit, obtains a relationship between an applied voltage and a discharge current amount to a charging roller 2, and determines a voltage value of an applied voltage corresponding to a predetermined discharge current amount. The engine control section 17 serves as a second applied voltage determining unit and determines a voltage value of a voltage to be applied to the charging roller 2 based on the environment information detected by the environmental sensor 18. The engine control section 17 selects, as the voltage to be applied to the charging roller 2, any one of the voltage values determined by the first and the second applied voltage determining units based oh the environment information.
Bibliography:Application Number: CN20101621552