B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
271/28
B65H 45/00 (2006.01) B65H 45/101 (2006.01)
Patent
CA 2026029
ABSTRACT In a paper stacking arrangement in which a length of prefolded printer paper with series of spaced-apart apertures adjacent the opposite edges thereof is driven through a printer by opposite tractor drives and then pulled from the printer by paper-pulling rollers and then dropped into a paper basket where the paper folds to form a stack, a paper ironing mechanism presses the paper flat at the opposite series of apertures prior to stacking to avoid paper jams and to provide a flatter stack of the paper within the paper basket. Portions of the edges of the apertures in the paper which are often bent out of the plane of the paper by the pins of the tractor drive are ironed flat by the paper ironing mechanism which includes an arrangement of rollers disposed on opposite sides of the paper at the series of apertures and biased toward one another. In a preferred embodiment of a paper ironing mechanism, the paper pulling rollers of an arrangement for pulling the length of paper out of the printer are disposed on one side of the paper at the opposite series of apertures. Idler rollers disposed on the opposite side of the paper are biased against the paper and the opposite paper puller rollers by leaf springs on which the idler rollers are rotatably mounted.
Dietiker Fritz
Printronix Inc.
Swabey Ogilvy Renault
LandOfFree
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