Apparatus for driving a platen roll and a thermal print head of

Details Apparatus for driving a platen roll and a thermal print head of Apparatus for driving a platen roll and a thermal print head of

1991-12-12

1993-07-27

Fuller, Benjamin R.

Recorders

Thermal recording

400649, B41J 25304

Patent

active

052314197

ABSTRACT:
Apparatus for automatically driving a platen roll and a thermal print head of a color video printer. The apparatus comprises a platen lever rotatably mounted on a side portion of a main base by a shaft in order to be capable of turning about the shaft and having a platen roll at an end thereof, a head lever rotatably mounted on the main base near the platen lever by a shaft in order to be capable of turning about the shaft and having a thermal print head at an end thereof, a biasing member for biasing the platen lever, a power transmitting member mounted on the other side portion of the main base for transmitting power from a driving motor, a slide lever engaging with the power transmitting member and being capable of moving along the lengthwise direction of the main base in a rectilinear reciprocating motion in order to cause the platen lever to rotate, a driving lever engaging with the slide lever in order to drive the head lever, and a compression lever engaging with the slide lever in order to compress the head lever. The apparatus of this invention provides advantage in that it improves the operational effect of the color video printer owing to the automatic driving operation for the platen roll and the thermal print head of the printer.

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