Adjusting the distance of a print head from a platen

Details Adjusting the distance of a print head from a platen Adjusting the distance of a print head from a platen

1987-03-06

1988-01-19

Sewell, Paul T.

Typewriting machines

Including adjustment for optimum printing plane

By adjustment of carriage

400 56, B41J 1120

Patent

active

047202009

ABSTRACT:
The print head is mounted on a carriage which, in turn, rides on a round bar which is transversely adjustable towards and away from the parallel running platen. The round bar rolls in horizontal oblong slots in side walls of the frame and has short, drum-shaped cams eccentrically connected to its ends, the cams being coaxial to each other and are held individually in abutment with reference surfaces that are individually adjustable on these side walls towards true parallelism; an adjusting lever is affixed to a third cam on the bar, and is coaxial to the two other cams, which lever is latchable in positions to thereby hold adjusted distances of the print head from the platen.

REFERENCES:
patent: 4023662 (1977-05-01), Perucca
patent: 4086997 (1978-05-01), Wu
patent: 4178106 (1979-12-01), Mailer
patent: 4189244 (1980-02-01), Harrison
patent: 4497588 (1985-02-01), Volke
patent: 4609294 (1986-09-01), Gomoll
patent: 4652153 (1987-03-01), Kotsuzumi

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