Patent ID: 7321376

Claim:
A thermal printer for a print medium having first and second surfaces opposite to one another, the thermal printer including a rotating unit rotatably installed within a frame, comprising: a recording head which forms an image on the print medium by heating the first surface or a second surface according to a location to which the recording head is rotated; and a support member arranged opposite to the recording head to support the print medium; a main board located on the frame substantially above the first surface of the print medium, the main board applies power and image data to the recording head; a flexible cable disposed on one side or both sides of the print medium so as to not interfere with transfer of the print medium and a reciprocating rotation of the recording head, wherein the flexible cable connects the main board and the recording head; and a control guide disposed on a path where the flexible cable moves within the frame to control a degree to which the flexible cable is loosened when the recording head is located at a certain position.