Patent ID: 7116344

Claim:
A printer comprising: a main body; a printer unit fixed to the main body, the printer unit having a first cover and a second cover, the second cover being attached to the main body, the first cover being fixed to the second cover with a hinge such that the first cover rotates freely along the hinge, wherein a hollow space is created between the first cover and the second cover when the first cover is closed against the second cover, the hollow space being suitable for loading a printing paper having a printable surface and a non-printable surface into the space between the first cover and the second cover, the non-printable surface of the printing paper having at least one mark; a mark detecting unit provided in the first cover and that detects the mark on the non-printable surface of the printing paper; a first contact member provided in the first cover; a second contact member provided in the second cover that makes physical contact with the first contact member when the first cover is closed over the second cover; and a control unit provided in the main body and that is electrically connected to the mark detection unit through the first and the second contact members and that controls various operations of the printer.