Ribbon feed mechanism for printer

Details Ribbon feed mechanism for printer Ribbon feed mechanism for printer

1984-10-17

1986-06-24

Pearson, Charles A.

Typewriting machines

Including interposed inking device for record-medium

Ribbon-feeding mechanism

4002362, B41J 3314

Patent

active

045964807

ABSTRACT:
A ribbon feed mechanism for a printer which develops a drive force for a printing ribbon utilizing the reciprocating movement of a carriage. Torque is applied to two drive gears through a single wire under tension in response to the movement of the carriage. A ribbon drive gear for feeding the ribbon in a predetermined direction is alternately meshed with the two drive gears during reciprocation of the carriage to be thereby rotated in a predetermined single direction. When the ribbon feed is needless, the tension is removed from the wire.

REFERENCES:
patent: 4044883 (1977-08-01), Boehmer
patent: 4232976 (1980-11-01), Bernardis et al.
IBM Technical Disclosure Bulletin, vol. 15, No. 7, Dec. 1972, "Ribbon Drive", p. 2312, by Cross.
IBM Technical Disclosure Bulletin, vol. 21, No. 6, Nov. 1978, "Ribbon Feed Interrupt Technique for One-Way Clutch Ribbon Feed Mechanism", pp. 2195-2196, by Haus.

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