Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masahiko Kato0
Date of Patent
April 7, 2009
0Patent Application Number
115445530
Date Filed
October 10, 2006
0Patent Primary Examiner
Patent abstract
A cleaning unit for an image forming apparatus of the present invention includes removing means made up of a cleaning blade configured to remove toner particles left on the surface of an image carrier in contact with the image carrier and a blade holder holding the cleaning blade. Assuming that the cleaning blade has a natural frequency of fc and that the image carrier has a speed variation frequency of fd ascribable to rotation thereof, a range other than a range represented by the following relation is selected:
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