Patent ID: 8113504
Filing Date: 2012-02-14
Classification: B65H

Abstract:
1. A media sheet feeding method for overcoming a media handling failure mode, comprising: supporting a media stack on a generally vertically movable elevator; initiating operation of a pick roll in conjunction with a top most sheet of the media stack; sensing whether or not the pick roll is operating in a preselected manner in conjunction with the top most sheet; and raising the elevator a preset distance if a first condition of the pick roll in conjunction with the top most sheet is sensed to decrease a normal force imposed on the top most sheet by the pick roll, and lowering the elevator a preset distance if a second condition of the pick roll in conjunction with the top most sheet is sensed to increase the normal force imposed on the top most sheet by the pick roll, in order to overcome the occurrence of a media handling failure mode between the pick roll and the top most sheet of the media stack.