Recorders – Thermal recording
Patent
1990-03-30
1992-02-11
Fuller, Benjamin R.
Recorders
Thermal recording
346145, 400120, B41J 25304, B41J 2325, G01D 1500, G01D 1522
Patent
active
050879260
ABSTRACT:
A head pressing mechanism in a thermal ink transfer printer for use with an insertable cassette in which there are housed both an elongate strip of ink transfer sheet wound at least in part on, and extending between, a payoff mandrel and a detachable takeup mandrel, and a stack of recording sheets for thermally receiving ink from the ink transfer strip. The printer withdraws the takeup mandrel from within the cassette and positions it within the printer for holding the ink transfer strip between a thermal printing head and a platen, and draws the successive recording sheets from the cassette onto the platen. For pressing the thermal printing head against the platen with the transfer strip and a recording sheet for ink transfer interposed between the printing head and the platen, the head pressing mechanism comprises a pair of first toggle joints each connected between the printer frame and one of a pair of pivotal head arms holding the printing head, and a pair of second toggle joints each connected between one of the first toggle joints and the printer frame. The second toggle joints are both cam actuated from a common electric motor.
Fuller Benjamin R.
Tran Huan
Victor Company of Japan Ltd.
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