Patent ID: 8411119

Claim:
A printer module for use in a printer apparatus having a rotationally openable lid, comprising: a fixed blade module having a fixed, blade and a locking part; and a movable blade module including a movable blade module main body, a movable blade and a bulging portion formed as a portion of the movable blade module main body, and configured to be joined to the fixed blade module such that the movable blade and the fixed blade face each other, wherein the movable blade module is configured to be movable relative to the rotationally openable lid upon being mounted on the rotationally openable lid; and the bulging portion is positioned relative to the fixed blade, and upon joining the movable blade module to the fixed blade module, the edge of the bulging portion is brought into contact with the locking part such that an angle between the movable blade and the fixed blade is set to a predetermined angle.