Sheet feeding or delivering – Feeding – Pack holders
Reexamination Certificate
2000-12-28
2003-07-22
Mansen, Michael R. (Department: 3654)
Sheet feeding or delivering
Feeding
Pack holders
Reexamination Certificate
active
06595513
ABSTRACT:
BACKGROUND
The present invention is in the field of printers and copiers. Specifically this invention relates to paper supply platforms.
It is often desirable to print on paper which has two sections of substantially different thickness, such as paper with a peel-off mailing label. This non-uniformity causes the top of the stack to have a differential height in the crosstrack direction in the paper supply. This differential thickness severely limits the amount of paper which the paper supply can hold and still maintain reliable feed performance.
A paper supply tray is desired with a device which will hold paper with at least two sections of substantially different thicknesses such that the top of the paper stack remains level, and the effective paper supply capacity is increased substantially.
SUMMARY OF THE INVENTION
According to an aspect of the invention, a leveling device is disclosed which is useful for paper having at least two different thicknesses for a paper supply tray having a given depth, for a sheet feeder, which comprises a support upon which the paper having at least two different thicknesses rests, wherein the support height is self-adjusting to compensate for the different thicknesses of the paper such that a top sheet of paper is in a position to feed properly into the sheet feeder.
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Amorese James G.
Dobbertin Michael T.
Bowen Kathleen K.
Heidelberger Druckmaschinen AG
Mansen Michael R.
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