Patent attributes
An object of the invention is to provide a printer apparatus which can perform printing to the whole surface of a recording sheet with no margin while print quality is not lost. A configuration of the invention is a printer apparatus which has a printing unit comprising a pressing member which is provided in parallel with a heat generating unit of the thermal head while being opposite the heat generating unit of the thermal head; a first roller which is provided in parallel with the pressing member; and an endless belt which is extended with a tension so as to involve the pressing member and the first roller. In the printer apparatus, the thermal head is pressed against the pressing member through an ink sheet and the endless belt, the recording sheet is conveyed between the ink sheet and the endless belt, and the printing is performed by transferring ink in the ink sheet to the recording sheet with the thermal head.