| 摘要 |
PROBLEM TO BE SOLVED: To provide a printer device having a structure that is hardly broken even though an impact such as falling down acts on the same.SOLUTION: A printer device has: a print head that prints on a recording sheet; a platen roller 120 supported by a frame; a biasing spring 140 provided between the frame and the print head and pressing the print head on the side of the platen roller 120; and an opening/closing arm 130 supported so as to rotate and move with respect to the frame around the arm rotation axis 131. The printer device is characterized in that the area 136a of contact between the opening/closing arm 130 and the platen bearing 121 of the platen roller 120 is on the opposite side, with respect to a line L4 connecting the center 131a of the arm rotation axis 131 to the center 121a of the platen bearing 121, from the side where the print head is provided. |
