Printer having disengageable idler roller assembly

Details Printer having disengageable idler roller assembly Printer having disengageable idler roller assembly

1989-02-01

1991-07-09

Burr, Edgar S.

Typewriting machines

Sheet or web

Including friction-feed means

4006161, B41J 1504

Patent

active

050300253

ABSTRACT:
In accordance with the preferred embodiment of the invention, a cam-operated idler roller assembly maintains tension on a computer printer generated form as it advances through the print station of a computer printer. This invention provides a nip station that disengages on a print medium reversal to allow the form to be run in a reverse direction through the print station by means of a cam design that disengages the idler roller assembly from the drive roller. The cam design further allows the idler roller assembly to reengage on forward print media movement to reestablish tension in the printing station.

REFERENCES:
patent: 3722655 (1973-03-01), Singer
patent: 4269522 (1981-05-01), Levinson et al.
patent: 4507003 (1985-03-01), Wincent
patent: 4619538 (1986-10-01), Patterson
patent: 4641830 (1987-02-01), Okuda et al.
patent: 4878772 (1989-11-01), Fukumoto et al.
patent: 4934847 (1990-06-01), Shiozaki et al.

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