Manufacturing method of thermal print head

A method for manufacturing a thermal print head, comprising:

• forming an electrode layer on a substrate;
• and
• forming a resistor layer including a plurality of heat generating portions connected to the electrode layer, wherein the electrode layer comprises:
• a plurality of individual electrodes including a plurality of first striped portions extending in a secondary scan direction and spaced apart in a main scan direction;
• and
• a common electrode including a plurality of second striped portions extending in the secondary scan direction and arranged opposite to the plurality of first striped portions in the secondary scan direction, and wherein
• the forming of the resistor layer includes:
• a coating process in which a resistor paste is applied in a stripe that overlaps the plurality of first striped portions and the plurality of second striped portions and extends in the main scan direction;
• a firing process for firing the resistor paste to form a resistor film;
• and
• a removal process for removing a removal region in the resistor paste or the resistor film, the removal region comprising:
• a first region located between adjacent two of the plurality of first striped portions in the main scan direction;
• a second region located between adjacent two of the plurality of second striped portions in the main scan direction;
• and
• a third region located between the first region and the second region in the secondary scan direction.