Teleprinter having single belt carriage and ribbon drive system

Details Teleprinter having single belt carriage and ribbon drive system Teleprinter having single belt carriage and ribbon drive system

1979-05-14

1981-11-17

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Endless ribbon or cartridge therefor

400229, 400233, 4002351, 400320, 400 59, 400902, 400903, B41J 3310

Patent

active

043008470

ABSTRACT:
A teleprinter includes a carriage for conveying a dot matrix-type print head along an operating path parallel to a print-receiving surface. The carriage is mounted on parallel-spaced support rods by means of spaced bearings slidably engaged to one of the support rods, and a pair of perpendicularly-aligned guide rollers which engage the other guide rod. The carriage is advanced by a drive belt which extends along the carriage operating path and is attached to the carriage at either end. A stepper motor coupled to one of the pulleys drives the belt to position the carriage. A removable cartridge on the carriage contains an inked ribbon which is advanced with movement of the carriage by a drive gear engaged to the drive belt. A unidirectional clutch prevents the inked ribbon from moving in a reverse direction during carriage return.

REFERENCES:
patent: 3283876 (1966-11-01), Kern
patent: 3401783 (1968-09-01), Norwood et al.
patent: 3578012 (1973-09-01), Bonner et al.
patent: 3670861 (1972-06-01), Zenner et al.
patent: 3726381 (1973-04-01), Murphy
patent: 3841459 (1974-10-01), Buschmann et al.
patent: 3904018 (1975-09-01), Denley
patent: 3939957 (1976-02-01), Bittner
patent: 3949857 (1976-04-01), Peters et al.
patent: 3960256 (1976-06-01), Bickoff et al.
patent: 4044883 (1977-08-01), Boehmer
patent: 4086997 (1978-05-01), Wu
IBM Technical Disclosure Bulletin, "Gear Drive Ribbon Reversing Mechanism", Nolden et al., vol. 20, No. 2, Jul. 1977, pp. 728-729.

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