Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenneth B. Wood0
Bob Mackenzie0
Carl A. Phillips0
David C. Deaville0
Date of Patent
May 24, 2011
0Patent Application Number
120276950
Date Filed
February 7, 2008
0Patent Primary Examiner
Patent abstract
Techniques include sensing electric signals from an actuator during a document stacking operation and determining whether an abnormal event has occurred based on the sensed signals. The techniques may find particular applicability, for example, to document acceptors that include piston-type stackers driven by a direct current motor.
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