Teg printing is a type of printing technology that uses thermoelectric generators (TEGs) to power the printing process. TEGs are devices that can convert temperature differences into electrical energy, and they are commonly used in a variety of applications, including power generation, waste heat recovery, and environmental monitoring. In TEG printing, a TEG is placed in contact with a heat source, such as a heating element, and a cold source, such as a heat sink. As heat flows from the hot source to the cold source, the TEG generates an electrical current that can be used to power a printing device.