Patent ID: 9007410
Filing Date: 2015-04-14
Classification: B41J

Abstract:
1. A heating head unit comprising: a rectangular head substrate having long sides and short sides, a strip-like heating element provided continuously on one surface of the head substrate from one end to another end of the head substrate along the long side of the head substrate, a pair of electrode connecting portions formed from the same material as that of the heating element where the heating element is bent and extends along the short side of the head substrate at both ends of the heating element to form the pair of electrode connecting portions, a pair of electrodes formed on the one surface of the head substrate between the strip-like heating element and the side edge of the long side of the head substrate at the side where the electrode connecting portions are provided, wherein the electrodes are electrically connected with each other while being partially brought into contact with each of the pair of electrode connecting portions, and a substrate temperature control means for controlling the substrate temperature by measuring the temperatures of the head substrate and a temperature measurement element.