Patent ID: 7101096

Claim:
A transferring tray for use with a printing apparatus for printing on a major surface of a disc-shaped recording medium, wherein the printing apparatus includes, a carriage having a printing head, reciprocating in a main scanning direction, a transferring unit transferring the recording medium in a sub scanning direction, a detecting unit detecting transfer of the recording medium by the transferring unit, and a recording unit printing on the first major surface of the recording medium, the transferring tray comprising: a rectangular tray body made of a material which is not detected by the detecting unit and having a first major surface and a second major surface, wherein the tray body includes a plurality of grooves defining a plurality of convex portions and a plurality of concave portions all arranged parallel to the sub scanning direction, wherein those of the plural convex portions located on the first of the major surfaces form the respective plural concave portions on the second of the major surfaces, and those of the plural convex portions located on the second of the major surfaces form the respective plural concave portions on the first of the major surfaces; a detected portion formed on either the first or the second major surfaces of the tray body, and which is detected by the detecting unit; and a mounting portion having a mounting recess for receiving the recording medium such that one of the major surfaces of the recording medium and one of the major surfaces of the tray body are substantially co-planar when the recording medium is mounted on the transferring tray.