Ink ribbon cartridge and color ink ribbon for printer

Details Ink ribbon cartridge and color ink ribbon for printer Ink ribbon cartridge and color ink ribbon for printer

1985-12-26

1987-06-02

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Ribbon, per se

4002404, 400208, B41J 3516, B41J 3340, B41J 3200

Patent

active

046698990

ABSTRACT:
A ribbon cartridge includes a feed core and a takeup core around which an ink ribbon is wound. The cartridge is formed substantially symmetrically in the right-left direction and reversibly loaded in a printer. The ribbon whose width is great enough to accommodate two characters has a upper and a lower parts which each extend in the lengthwise direction of the ribbon, the upper and lower parts being usable in sequence for printing out data. A ribbon feed belt is passed over a drive roller and a pair of rollers which are located to define apexes of a triangle, remaining in frictional contact with the outer peripheries of the ribbon on the opposite cores. The drive roller drives the belt to feed the ribbon. A color ink ribbon which may be installed in the cartridge has an upper portion in which different colors are provided in a repetitive pattern in a predetermined order and a lower portion in which they are provided in a predetermined order opposite to that of the upper part, the colors appearing in the same order at a print position even when the cartridge is turned upside down.

REFERENCES:
patent: 3961121 (1976-06-01), Warsager
patent: 3990043 (1976-11-01), Clark
patent: 4479730 (1984-10-01), Yoshioka et al.
patent: 4492483 (1985-01-01), Guillaume
patent: 4551729 (1985-11-01), Kubo et al.
Garwin, Improved Capacity Typewriter Ribbon, IBM Tech. Disclosure Bulletin, vol. 22, No. 8A, p. 3469, 1/80.

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