Head driving apparatus for thermal printer

Details Head driving apparatus for thermal printer Head driving apparatus for thermal printer

1990-04-09

1991-04-16

Miller, Jr., George H.

Recorders

Thermal recording

400185, 400320, 400356, B41J 232

Patent

active

050086847

ABSTRACT:
In a thermal printer, a driving apparatus moves a thermal head both longitudinally of and perpendicularly toward and away from a platen. A racing or idle rotating of gears is utilized in a driving mechanism for reciprocatingly moving a carriage carrying the head. Further, sector gears are used in a loading mechanism for moving the head toward and away from the platen. By combining these two unique structures, the rotational force of a drive motor is converted into the driving force to move the head toward and away from the platen when the carriage is switched between its forward movement and its backward movement. The result is that the carriage driving mechanism and the head load mechanism are operated by the common drive motor.

REFERENCES:
patent: 4444521 (1984-04-01), Rickard et al.
patent: 4643602 (1987-02-01), Ikeda et al.
patent: 4752786 (1988-06-01), Inoue et al.
patent: 4920258 (1990-04-01), Saito
patent: 4952084 (1990-08-01), Maruyama

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