Patent ID: 7354213

Claim:
A printer comprising: a sheet discharge port provided on an upper surface of an exterior case to discharge a sheet therefrom, and a recess portion for preventing invasion of a foreign material into the sheet discharge port, provided on the upper surface of the exterior case, wherein the recess portion is formed to extend beyond the sheet discharge port in a width direction, wherein at least one end of said recess portion is opened to a side surface of the exterior case, wherein the upper surface of the exterior case has a forward and downward inclined surface, the sheet discharge port is opened to the inclined surface, and the recess portion is formed so that the open edge portion thereof is located at a higher position than the sheet discharge port, and wherein the upper surface of the exterior case is constructed by a freely openable and closable front lid body and a freely openable and closable rear lid body, the sheet discharge port is opened at the boundary portion between the front lid body and the rear lid body, and the recess portion is formed on the surface of the rear lid body.