Patent ID: 8870482
Filing Date: 2014-10-28
Classification: B41J

Abstract:
1. A thermal printer comprising: a printer main body; a cover fixed to the printer main body to rotate between closed and opened states; a platen roller disposed in the cover; a thermal head disposed in the printer main body, and arranged to face the platen roller in a closed state and to press the platen roller; a locking mechanism which engages and disengages the printer main body and the cover; and a linking member which links the thermal head with the locking mechanism, and retreats the thermal head from the platen roller with disengagement of the locking mechanism, wherein the thermal head is secured to a heat sink fixed to the printer main body to rotate around a second rotary shaft, wherein an end of the heat sink is lower than the second rotary shaft and comprises an attachment part that rotatably connects the end of the heat sink to the linking member with a clearance, and the heat sink is rotated via the linking member with rotation of the locking mechanism from an engaging position to a disengaging position based on a predetermined value defined by the clearance.