Printing mechanism
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United States of America Patent
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Feb 21, 2017
Grant Date -
Aug 4, 2016
app pub date -
Sep 16, 2014
filing date -
Sep 18, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A printing mechanism having an engaging body that is rotatable between an engaging position, in which it retains a printing roller in a position facing a thermal printing head, and a disengaging position wherein it enables the printing roller to be removed; a reversible drive shaft rotating in one direction rotates the printing roller and rotating in the opposite direction moves the engaging body to the disengaging position, owing to a unidirectional joint that connects the drive shaft to the engaging body only when the drive shaft rotates in an opposite direction.
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