| 摘要 |
In order to place both ends of a platen roller in bearing portions of a frame to perform accurate printing on a recording sheet with improved operability, a thermal printer comprises: a pair of concave portions (10d) provided to a frame to receive both end portions of a roller shaft (13e) of a platen roller (13) when a cover (8) is in a closed state; a pair of lock arms for automatically engaging the roller shaft (13e) of the platen roller (13) with the concave portions along with an operation of closing the cover (8); and a connection mechanism (30) for turnably connecting the platen roller (13) to the cover (8), and is characterized in that an axis of rotation of the platen roller (13) in the connection mechanism (30) is contained in a plane passing through a midpoint between the pair of concave portions (10d) to be vertical to an axial direction of the concave portions (10d) and is arranged parallel to the cover (8). |
