Mechanism for correcting the printing position of an electronic

Details Mechanism for correcting the printing position of an electronic Mechanism for correcting the printing position of an electronic

1990-10-31

1992-11-03

Crowder, Clifford D.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400214, 400212, 4002161, B41J 3314, B41J 3527, B41J 2936

Patent

active

051602075

ABSTRACT:
There is provided a mechanism for correcting the printing position of an electronic typewriter comprising a working pin attached to a ribbon bracket, the working pin cooperating with a ribbon cam so as to move the ribbon bracket to a printing or correction position, a coil spring for resiliently supporting the working pin, a printing track groove and correction track groove formed in one side of the ribbon cam and connected to each other, a correction angle formed between the starting points of the printing and correction grooves, and two slopes respectively formed in the starting points of the grooves. The lower ends of a push pawl and pawl locker are connected to carriage body respectively by means of a push pawl coil spring and pawl locker coil spring. A push cam is rotated by the turning force of a motor transmitted via an idle gear and following gear, and the pawl locker contacts the push pawl locker of the push pawl.

REFERENCES:
patent: 4472073 (1984-09-01), Valle et al.
patent: 4533267 (1985-08-01), Kurachi et al.
patent: 4573813 (1986-03-01), Aoki et al.
patent: 4589788 (1986-05-01), Lendl
patent: 4637744 (1987-01-01), Valle et al.
patent: 4728208 (1988-03-01), Iwase et al.
patent: 4840505 (1989-06-01), Kurokawa

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