Method and apparatus for non-contact measurement of a media...

Details Method and apparatus for non-contact measurement of a media... Method and apparatus for non-contact measurement of a media...

2011-03-29

2011-03-29

Joerger, Kaitlin S (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

C271S152000

Reexamination Certificate

active

07913995

ABSTRACT:
A method and apparatus for non-contact measurement of a media stack in an image production device is disclosed that may include detecting the position of an unfluffed media stack, setting a desired media stack height by changing a media elevator position using a media elevator control unit based on the detected unfluffed media stack position, determining if printing and fluffing has started, wherein if it is determined that printing and fluffing has started, detecting the position of the transition between the fluffed and unfluffed portions of the media stack using the one or more sensors, determining if the position of the transition between the fluffed and unfluffed portions of the media stack is below a predetermined threshold, wherein if it is determined that the position of the transition between the fluffed and unfluffed portions of the media stack is below the predetermined threshold, setting the desired media stack height by changing the media elevator position based on the detected position of the transition between the fluffed and unfluffed portions of the media stack.

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Clark et al.; U.S. Appl. No. 12/187,930; filed Aug. 7, 2008.
DeGruchy et al.; U.S. Appl. No. 12/261,463; filed Oct. 30, 2008.

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