Embodiments of the present invention describe a thermal print head (TPH) that is easily replaced in a slot on the side of a thermal printing device using a push/eject mechanism. Other embodiments of the present invention describe a thermal printing device where the print pressure is easily adjusted for different types of printing media (labels) by turning a turnknob. In preferred embodiments, the turnknob has three print pressure settings, high, medium, and low.

Provided herein is a printhead for a printing apparatus. The printhead comprises a first burn line of heating elements disposed on a first surface of the printhead, and a second burn line of heating elements disposed on a second surface of the printhead. The second surface is opposite to the first surface. Thereafter, one of the first burn line of heating elements or the second burn line of heating elements is configured to perform a printing operation.