Printing medium feeding device of an image reproduction apparatu

Details Printing medium feeding device of an image reproduction apparatu Printing medium feeding device of an image reproduction apparatu

1991-11-13

1993-06-22

Stodola, Daniel P.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Comprising rotary pinch pair

226187, 4006363, B41J 1500

Patent

active

052210359

ABSTRACT:
A printing medium feeding device for an image reproduction apparatus has a feed roller driveable in forward and reverse directions. A pinch roller is rotatably supported by a pivotable arm and rotatably supports a hook. The hook is effective when in an engaged position to hook onto a feed roller shaft so as to position the pinch roller and feed roller to sandwich therebetween a printing medium. The pinch roller is rotated by the rotation of the feed roller. An actuating plate carrying a one-way transmission is rotatable by the shaft of the pinch roller only when the feed roller is driven in the reverse direction. The actuating plate moves the hook to release the engagement with the feed roller shaft to release the pinching of the printing medium between the pinch roller and the feed roller at appropriate times, such as during printing.

REFERENCES:
patent: 3754695 (1973-08-01), Suzuki
patent: 4341480 (1982-07-01), Mailer
patent: 4368837 (1983-01-01), Bodewein
patent: 4479598 (1984-10-01), Mailer et al.
patent: 4688958 (1987-08-01), Tajima
patent: 5129749 (1992-07-01), Sato
IBM Technical Disclosure Bulletin, "Selectively Controllable Document Feed Device", Massey, vol. 8, No. 11, Apr., 1966.

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