Paper feed mechanism having an adjustable restrainer

Details Paper feed mechanism having an adjustable restrainer Paper feed mechanism having an adjustable restrainer

1991-04-23

1992-11-17

Hajec, Donald T.

Sheet feeding or delivering

Feeding

Separators

271121, B65H 352

Patent

active

051636697

ABSTRACT:
Letter quality addressing is possible at production speeds. A feeding and transport system positively feeds discrete media elements to be addressed (such as envelopes) past a number of print heads in a positive manner to maintain consistent and proper alignment of the printed text on the media elements. First and second feed rollers feed the media elements to a pair of pinch rollers, the operation of the first roller being interrupted once a media element reaches a predetermined position. A normally non-rotatable selector bar with O-rings mounted at axially spaced positions therealong are associated with the second feed roller. An adjustment mechanism is provided for not only adjusting the selector bar relative the second feed roller to accommodate media of different thickness, but also to adjust the position of the O-rings relative to the second feed roller.

REFERENCES:
patent: 3838851 (1974-10-01), Kolibas
patent: 4316606 (1982-02-01), Buys et al.
patent: 4437658 (1984-03-01), Olson
patent: 4728095 (1988-03-01), Irvine et al.
patent: 4858907 (1989-08-01), Eisner et al.
patent: 4958825 (1990-09-01), Onomoto et al.
patent: 4991831 (1991-02-01), Green
Dials et al, "Roll Interference Adjustment Mechanism and Restraint Roll Idler Mechanism", Sep. 1985, IBM Tech Disclosure Bull., vol. 18, No. 4, p. 953.
Sokol, "Wear Compensation and Roll Gap Generator", Sep. 1975, IBM Tech. Disclosure Bulletin. vol. 18, No. 4, p. 957.

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