Patent ID: 7988374

Claim:
A printing device comprising: a platen roller having a platen roller shaft; a print head for performing printing on a sheet material; and a sheet cutting device for cutting the sheet material on which printing has been performed, the sheet cutting device comprising: a stationary blade disposed on a downstream side in a transporting direction of the sheet material with respect to the print head; a movable blade mounted to undergo movement to a position close to and spaced apart from the stationary blade for cutting the sheet material in a pressing contact state with respect to the stationary blade, the stationary blade being disposed on the downstream side in the transporting direction of the sheet material with respect to the movable blade; drive means for moving the movable blade with respect to the stationary blade; a stationary blade frame for supporting the stationary blade, the stationary blade frame having elongated holes at respective ends thereof supporting respective ends of the platen roller shaft; a movable blade frame for supporting the movable blade, a main frame movably supporting the stationary blade and non-movably supporting the movable blade frame; and releasing means disposed in the stationary blade frame and movable to first and second positions for releasing the stationary and movable blades; wherein in the first position of the releasing means, the movable and stationary blades are in the pressing contact state, the platen roller is in contact with the print head, and the ends of the platen roller shaft are disposed adjacent to one end of the respective elongated holes of the stationary blade frame; and wherein in the second position of the releasing means, the movable and stationary blades are moved out of the pressing contact state, the platen roller is in contact with the print head, and the ends of the platen roller shaft are disposed adjacent to the other end of the respective elongated holes of the stationary blade frame.