Typewriting machines – Including interposed inking device for record-medium – Means auxiliary to ribbon mechanism
Patent
1989-11-30
1991-07-23
Wiecking, David A.
Typewriting machines
Including interposed inking device for record-medium
Means auxiliary to ribbon mechanism
400208, 400234, B41J 3508
Patent
active
050338889
ABSTRACT:
A printer with an improved ribbon guide mechanism. A pair of ribbon guides is mounted via fixing members, one being on each of both sides of a printing head, so as to be positioned in the path of a print ribbon. Thus the ribbon guides are movable together with the printing head to an operating position and a rest position. Leaf springs are provided to press the ribbon at all times against the ribbon guides on either side of the printing head. This allows the length of a portion of the print ribbon moving through between the guides on either side of the printing head to be maintained substantially constant, whether the printing head is at its operating position or at its rest position, thereby preventing the occurrence of slackness in the ribbon.
REFERENCES:
patent: 4147439 (1979-09-01), Colecchi
patent: 4387380 (1983-06-01), Asakura et al.
patent: 4402622 (1983-09-01), Sugiura
patent: 4468139 (1984-08-01), Hattori
"Ribbon Cartridge Having Self-Induced Take-Up Motion"; anonymous; IBM Tech Disc. Bull.; vol. 27, No. 10B, pp. 6356-6357; Mar. 1985.
Okumura Takashi
Yamaguchi Koshiro
Brother Kogyo Kabushiki Kaisha
Wiecking David A.
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