Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tatsuya Inoue0
Kazuhiro Matsuyama0
Yasuhiro Takai0
Toshiki Takiguchi0
Hirokazu Yamauchi0
Date of Patent
October 6, 2009
0Patent Application Number
115867260
Date Filed
October 26, 2006
0Patent Primary Examiner
Patent abstract
In an image forming apparatus of the present invention, a scorotron charging device has a meshed grid electrode which is meshed more coarsely in a high-speed apparatus than a meshed grid electrode in a low-speed apparatus according to a circumferential velocity of a photoreceptor. With this arrangement, it is possible to charge the photoreceptor at a predetermined potential in the high-speed apparatus, without increase of the amount of ozone generation and upsizing of the image forming apparatus.
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