Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tamotsu Shimizu0
Kensuke Fujihara0
Koji Fujii0
Ryota Maeda0
Akane Tokushige0
Date of Patent
July 12, 2011
0Patent Application Number
125468450
Date Filed
August 25, 2009
0Patent Primary Examiner
Patent abstract
An image forming apparatus that includes: a photoconductive drum; a developing roller that is arranged opposite the photoconductive drum and that carries toner; a detecting portion that detects an occurrence of electrical discharge between the developing roller and the photoconductive drum; a control portion that controls the apparatus, that receives an output of the detecting portion and then recognizes the occurrence of the electrical discharge; a direct voltage applying portion that is connected to the developing roller; and an alternating voltage applying portion is disclosed herein.
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