Stuffed chamber ribbon cartridge

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...

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Details

400196, B41J 3528

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active

048405035

ABSTRACT:
A fabric ribbon (13) is stuffed in a cartridge chamber (11). Two pinch rollers (35 and 39) are driven by a third roller (29). The direction for forces from the pinch rollers is toward a wall portion (9a), which is near an opening having a dam (ridge 67) which leads to chamber (74) have an exit slot (71) located near the wall portion (9a). The drive roller (29) is positioned to be located where the drive roller of an existing cartridge was located, making this cartridge interchangeable with a cartridge for a spool-to-spool ribbon.

REFERENCES:
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patent: 4053042 (1977-10-01), Hess
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patent: 4623274 (1986-11-01), Ohsaki
patent: 4645363 (1987-02-01), Andersson
patent: 4749293 (1988-06-01), Beer et al.
"Harmonic-Drive Ribbon Stuffer for Impact Printers", Helinski, IBM J. Res. Develop., vol. 23, No. 4, Jul. 1979, pp. 411-414.
IBM Tech. Disc. Bulletin, "Ribbon Cartridge Exit Impedance", vol. 20, No. 11B, Apr. 1978, pp. 4739-4740.
Research Disclosure article No. 28058 entitled, "Cartridge Ribbon Restraint System", Aug. 1987, No. 280, Kenneth Mason Publications Ltd.

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