Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 7, 2009
Patent Application Number
11701418
Date Filed
February 2, 2007
Patent Primary Examiner
Patent abstract
A developer agitation screw is provided with a blade to gather developer onto the sensor surface of a toner concentration sensor. A toner concentration control unit detects the maximum value of the output of the toner concentration sensor within each predetermined period of time, the predetermined period of time being longer than the period in which developer is gathered on the sensor surface of the toner concentration sensor by the blade. The obtained maximum value is used as a characteristic value to control the toner concentration.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
