Print and correction ribbon drive system

Details Print and correction ribbon drive system Print and correction ribbon drive system

1984-11-02

1986-09-02

Burr, Edgar S.

Typewriting machines

Having power-driven operator for plural functions

Usable selectively

400214, 400225, 400212, 400236, 4006971, B41J 3523, B41J 3316, B41J 2926

Patent

active

046092978

ABSTRACT:
A drive system to raise and transport both print and correction ribbons on typewriters or like machines is powered by a single bidirectional stepping motor. In one direction of rotation the motor acts via a special action clutch to first drive mechanisms for raising a print ribbon and then to establish gear connections for driving mechanisms for transporting the print ribbon. In the other direction, the motor acts to establish gear connections for driving mechanisms for raising and transporting a correction ribbon.

REFERENCES:
patent: 4407594 (1983-10-01), Link
patent: 4511270 (1985-04-01), Bohmer
patent: 4533267 (1985-08-01), Kurachi et al.
"Unique Cam Arrangement for Printer Ribbon Feed"; Pyrcell et al., IBM TDB; vol. 26, No. 1, pp. 67-68; Jun. 1983.
"Proportional Ribbon & Correction Feed Mechanism . . . "; Mink et al; IBM TDB; vol. 26, No. 1, pp. 292-293; Jun. 1983.
"Variable Life & Feed . . . "; Greenlief et al; IBM TDB; vol. 26, No. 3B, pp. 1580-1582; Aug. 1983.

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