Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent
1985-10-11
1987-08-18
Pearson, Charles A.
Typewriting machines
Including interposed inking device for record-medium
Package for ribbon facilitating mounting of ribbon on...
400214, 400229, B41J 3200
Patent
active
046873570
ABSTRACT:
An ink ribbon cassette is constructed such that it is unnecessary to wind off an ink ribbon at the start of every line printing process. The cassette includes two pairs of reels, each pair including an ink ribbon-winding off reel and an ink ribbon-winding up reel. The pairs of rails are rotatably mounted one above the other on a cassette casing which is detachably mounted on a carriage of a printer. The casing is provided with a driving shaft which is rotated in normal and reverse directions in response to reciprocal movement of the carriage. The driving shaft being provided with two one-way clutches transmitting the rotation of the shaft in opposite directions. Conveying members separately convey the ink ribbons for the respective pairs of reels and are driven by respective to the one-way clutches.
REFERENCES:
patent: 4420268 (1983-12-01), Tsukamura et al.
patent: 4468139 (1984-08-01), Hattori
IBM Technical Disclosure Bulletin, vol. 23, No. 4, Sep. 1980, pp. 1517-1520, "Ribbon Feed for Bidirectional Printer" by Dials et al.
Katsuragi Koji
Kawahara Yoshihiro
Kobayashi Kazuhiro
Matsumoto Hideki
Ozaki Hirofumi
Mita Industrial Co. Ltd.
Pearson Charles A.
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