Inked ribbon cartridge for an impact serial printer

Details Inked ribbon cartridge for an impact serial printer Inked ribbon cartridge for an impact serial printer

1984-10-16

1985-08-06

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400234, B41J 3528

Patent

active

045332665

ABSTRACT:
An inked ribbon cartridge having an inked ribbon to be used for printing by an impact printer includes first and second cores having the ribbon wound thereon, and first and second ratchet cores directly coupled to the first and second ribbon cores. In addition, first and second levers have first ends which are selectively engaged with the first and second ratchet cores while opposite ends of the first and second levers are in contact with the inked ribbon for detecting a tension in the inked ribbon. Accordingly, the ribbon can be fed by providing a low torque to the first and second ribbon cores.

REFERENCES:
patent: 4010839 (1977-03-01), Guerrini et al.
patent: 4350454 (1982-09-01), Schoenlein
patent: 4373824 (1983-02-01), Olsen
Bullock et al., "Constant Tension Ribbon Cartridge, Oct. 1980, pp. 1741-1742, IBM Tech. Disc. Bull, vol. 23, No. 5.

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