Dot matrix type serial printer

Details Dot matrix type serial printer Dot matrix type serial printer

1975-12-11

1977-05-24

Rader, Ralph T.

Textiles: fiber preparation

197 53, 197 82, B41J 304

Patent

active

040249417

ABSTRACT:
A step motor is employed as a source of power for transverse feed of the printing head assembly with a combination of a slitted rotary disc secured to the motor output shaft and a stationary detector unit provided to control the motor operation and the dot-printing head operation in precisely timed relation to each other. The rotary disc is also slotted to serve the purpose of defining for the printing head assembly a print starting position spaced a definite distance to the right from its rest position. The printer structure, including a minimum of movable component parts, is capable of forming characters without any lack of "dot" and is minimized in power consumption and noise particularly in idling operation.

REFERENCES:
patent: 3292530 (1966-12-01), Martin
patent: 3566782 (1971-03-01), Kocher
patent: 3825681 (1974-07-01), Cederberg et al.
patent: 3831728 (1974-08-01), Woods et al.
patent: 3891077 (1975-06-01), Sauerbrunn
patent: 3905463 (1975-09-01), Boyce et al.

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