Adjustment of print position

Details Adjustment of print position Adjustment of print position

1981-04-13

1986-09-02

Sewell, Paul T.

Typewriting machines

Including adjustment for optimum printing plane

By adjustment of carriage

400 56, 400 57, B41J 2530, B41J 1120

Patent

active

046092943

ABSTRACT:
The platen roller in a matrix printer is mounted to the printer case so that stop plates of the mount define a representation of the disposition of the roller. A frame is provided to hold a guide rod on which rides a carriage, and the print head is secured to that carriage. Adjustable cams on the rod abut the stop plates when the frame is slid into the case to, thereby, establish the distance between head and platen. The frame carries also the head drive, its motor and the paper-feed motor, there being a key connection to the platen, maintaining a driving connection even for different cam adjustments and frame positions in the case.

REFERENCES:
patent: 4024940 (1977-05-01), Hendrischk et al.
patent: 4086997 (1978-05-01), Wu
patent: 4178106 (1979-12-01), Mailer et al.
patent: 4189244 (1980-02-01), Harrison
patent: 4218151 (1980-08-01), Kondur
patent: 4259026 (1981-03-01), Hanaoka et al.

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