Printer having a bail roller opening and closing mechanism

Details Printer having a bail roller opening and closing mechanism Printer having a bail roller opening and closing mechanism

1990-03-09

1991-12-10

Eickholt, Eugene H.

Typewriting machines

Sheet or web

Including friction-feed means

B41J 1320, B41J 1136

Patent

active

050712756

ABSTRACT:
A printer having a bail roller opening and closing apparatus including a bail roller for pressing a printing medium against a platen, a bail roller opening and closing mechanism for moving the bail roller between a closed position and an open position, and a clutch for connecting a space motor to the bail roller opening and closing mechanism. The bail roller opening and closing mechanism includes a rotating member rotationally driven by the space motor via the clutch, a transmission member causing the bail roller to be displaced by displacement of the transmission member and manual displacement of the bail roller, and a bidirectional motion transmission mechanism for transmitting bidirectional motion between the rotating member and the transmission member.

REFERENCES:
patent: 4569611 (1986-02-01), Watanabe et al.
patent: 4647239 (1987-03-01), Maezawa et al.
patent: 4707159 (1987-11-01), Hirano et al.
patent: 4859099 (1989-08-01), Kanemoto et al.
patent: 4883375 (1989-11-01), Karube et al.
"Paperfeed Apparatus", IBM Technical Disclosure Bulletin, vol. 22, No. 4, 9/79, pp. 1321-1322.
IBM Technical Disclosure Bulletin, vol. 4, No. 5, Sep. 1979, N.Y., U.S., pp. 677-678.
Patent Abstracts of Japan, vol. 12, No. 416, Nov. 4, 1988.
IBM Technical Disclosure Bulletin, vol. 23, No. 10, Mar. 1981, N.Y., U.S., pp. 4798-4799.
Patent Abstracts of Japan, vol. 12, No. 448, Nov. 24, 1988.

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