Roller device for transporting recording supports in printers

Typewriting machines – Sheet or web – Including friction-feed means

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400637, B41J 13036

Patent

active

049366963

ABSTRACT:
Each of one or more groups of pressure rollers (24, 25), consisting of a plurality of pairs of rollers (26), is arranged on its own mounting frame (27) that is releasably carried on the connecting piece (4) of the printer frame (1). The mounting frames (27) are concurrently displaceable by means of a selectively adjustable displacement member (28) disposed parallel to the elongation of the platen roller (6) between a rest position and an operating position for accommodating both tractor-fed edge-perforated continuous forms and individual sheets of recording support material, respectively.

REFERENCES:
patent: 1004569 (1911-10-01), Hess
patent: 1182352 (1916-05-01), Corcoran
patent: 1207628 (1916-12-01), Roebuck
patent: 1496876 (1924-06-01), Garbell
patent: 1988189 (1935-01-01), Dobson
patent: 2002361 (1935-05-01), Christian
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patent: 4592670 (1986-06-01), Frank et al.
patent: 4717274 (1988-01-01), Kimura
C.N. Ramirez et al., "Platen Backup Rollers", IBM Technical Disclosure Bulletin, vol. 25, No. 1, pp. 202-203, Jun. 1982.

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