Apparatus for the transport of paper in printers

Details Apparatus for the transport of paper in printers Apparatus for the transport of paper in printers

1990-05-22

1992-10-27

Burr, Edgar S.

Typewriting machines

Sheet or web

For feeding plural record media concurrently or selectively

400616, 400617, 400636, 4006371, 4006363, B41J 1150

Patent

active

051583801

ABSTRACT:
Apparatus for the selectably alternative feeding of single sheets and of endless webs of paper in a printer includes a guide roll (7), and first and second groups (8, 9) of friction rollers concurrently movable between first and second positions to define respective single sheet and endless web feeding modes of operation. In their first positions, the first friction rollers (8) contact the guide roll (7) to define a first single sheet feed channel (4) and the second friction rollers (9) contact the guide roll (7) to define a second single sheet feed channel (5). When shifted to their second positions, the first friction rollers (8) are displaced from their first position contact with the guide roll (7) to substantially eliminate the first single sheet feed channel (4), and the second friction roller (9) are lowered to form with the guide roll (7) an endless web feed channel (6).

REFERENCES:
patent: 4606663 (1986-08-01), Christoph et al.
patent: 4815879 (1989-03-01), Yokoi
patent: 4936696 (1990-06-01), Steppe
patent: 5011313 (1991-04-01), Sato
patent: 5018655 (1991-05-01), Koire et al.
patent: 5030024 (1991-07-01), Seshimo

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