Print head mounting assembly with form adjustment

Details Print head mounting assembly with form adjustment Print head mounting assembly with form adjustment

1980-10-20

1983-05-03

Burr, Edgar S.

Typewriting machines

Including adjustment for optimum printing plane

Responsive to thickness of record-medium

400 59, 400124, 400320, B41J 1120

Patent

active

043818960

ABSTRACT:
An assembly for mounting a print head upon a carriage having an adjustable collar and a slotted support which receive opposing ends of an elongated shaft secured to the print head. The shaft is accurately positioned on the carriage by means of openings in said collar and said support which receive cooperating portions of said shaft. A spring biased cylindrical member retains the shaft within the carriage support and the collar. The collar is provided with a pair of projections which are engaged by the cam surface of a cam member rotatably mounted upon the shaft for adjusting the axial position of the print head relative to said collar and hence relative to a web supporting platen. The forms thickness setting assembly is accurately adjusted simply by axial adjustment of the collar, to assure the accuracy of all forms thickness settings through only a single adjustment step. A second pin secured to the print head is received within the slot of a second support on the carriage to assure precise angular orientation of the print head. The carriage is designed for use in a wide varieties of printers.

REFERENCES:
patent: 3696906 (1972-10-01), Salto et al.
patent: 3776341 (1973-12-01), Dobner et al.
patent: 3799311 (1974-03-01), Guerrini et al.
patent: 3921780 (1975-11-01), Gentzlinger et al.
patent: 3935936 (1976-02-01), Wilczewski
patent: 3960256 (1976-06-01), Bickoff et al.
patent: 4023662 (1977-05-01), Perucca
patent: 4086997 (1978-05-01), Wu
patent: 4256408 (1981-03-01), Shelton

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