Patent ID: 8421832

Claim:
A surface property modifying sheet cartridge, comprising: two reels that are disposed in parallel with a predetermined interval; a surface property modifying sheet that is provided in a tensioned state between the two reels in a manner such that end parts thereof are respectively fixed to the two reels and are wound respectively around the two reels; and a case part configured to store the two reels and the surface property modifying sheet, wherein the case part includes a penetrating part that exposes a part of the surface property modifying sheet positioned between the two reels, wherein the surface property modifying sheet includes a surface property modifying part that is heated and pressed by a thermal head in surface property modifying processing, a first intermediate part connecting one of the end parts fixed to one of the reels and one end of the surface property modifying part, and a second intermediate part connecting the other of the end parts fixed to the other of the reels and the other end of the surface property modifying part, a rectangular opening part through which the thermal head passes in printing is formed on one of the first intermediate part and the second intermediate part, and at least one side, the side being approximately orthogonal to a running direction of the surface property modifying sheet, of the opening part has a shape protruding in the running direction toward an outside of the opening part.