Line printer with pinch roller release

Details Line printer with pinch roller release Line printer with pinch roller release

1991-04-16

1992-07-14

Burr, Edgar S.

Typewriting machines

Sheet or web

Including friction-feed means

400617, 400636, 271274, 226187, B41J 1500

Patent

active

051297493

ABSTRACT:
The line printer is provided with a pinch roller for feeding a spring medium sheet by capstan drive. The pinch roller is pressed by an integrated pressing mechanism comprised of a spring holder, a pressing spring member disposed in the holder and a bearing piece connected to the spring member in contact with the pinch roller. A pressing lever is shiftable between a pressing position effective to apply pressing force to the integrated mechanism and a release position effective to release the integrated pressing mechanism. The released pressing mechanism or unit is moved away from the pinch roller to free the same to leave a significant gap between the pinch roller and a capstan roller, thereby facilitating removal of a jammed print medium sheet. Further, the integrated pressing mechanism facilitates maintenance performance of the line printer.

REFERENCES:
patent: 3561660 (1971-02-01), Nicol
patent: 4346883 (1982-08-01), Speraggi
patent: 4522520 (1985-06-01), Takenoya et al.
patent: 4630815 (1986-12-01), Petersen et al.
patent: 4944620 (1990-07-01), Scozzafava et al.

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