US Patent 7558496 Image forming device
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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.
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US Patent 07558496 Image forming device US Patent 7558496 Image forming device
Infobox
Patent Number
0755849600
Patent Number
755849600
Edits on 24 Mar, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
075584960
Date of Patent
July 7, 2009
0Patent Application Number
117014180
Date Filed
February 2, 2007
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
075584960
Date of Patent
July 7, 2009
0Patent Application Number
117014180
Date Filed
February 2, 2007
0Official Website
Patent Primary Examiner
Edits on 18 Jun, 2022
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US Patent 07558496 Image forming device
Infobox
Is a
Patent jurisdiction
Patent number
07558496
Date of patent
July 7, 2009
Patent application number
11701418
Date Filed
February 2, 2007
Patent primary examiner
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