Sheet-feed mechanism for rotary print head

Details Sheet-feed mechanism for rotary print head Sheet-feed mechanism for rotary print head

1984-11-08

1986-05-27

Eickholt, E. H.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

346 75, B41J 302

Patent

active

045912815

ABSTRACT:
A sheet-feed mechanism (10) for a rotary print head (12) includes a track (16) that defines a paper path in the form of a partial circular annulus. Belts (40 and 42) carry tabs (36, 38, 72, and 74) that support the lower end of a paper sheet, and movement of the belt causes the tabs to raise the paper sheet as it is printed. A guide structure (60) keeps the paper sheet in the proper cylindrical shape until it has left the track, at which time a curved portion (67) of a cam post (66) urges the paper out so that it pops open to a flat shape and falls into a tray (70).

REFERENCES:
patent: 3864696 (1975-02-01), Fischbeck
patent: 3925790 (1975-12-01), Fischbeck
"Centrifugal Ink Jet Printer", IBM Tech. Discl. Bulletin, vol. 21, No. 11, Apr. 1979, pp. 4668-4669.
"Ink Jet Printing on Paper Moving Inside a Stationary Cylinder", IBM Tech. Discl. Bulletin, vol. 21, No. 11, Apr. 1979, pp. 4406-4407.

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