Patent ID: 8051437

Claim:
A tray comprising: a tray main body that can be nipped by a driving roller rotatably driven and a plurality of driven rollers driven to rotate by making contact with the driving roller, the tray main body having a plate shape; a concave portion in which a thin plate shaped body can be set, the concave portion being formed in the tray main body; a fitting convex portion that is fitted in a fitting hole formed in the thin plate shaped body, the fitting convex portion being provided in the concave portion; and a plurality of elastic pieces for holding the thin plate shaped body by elastically making contact with an inner edge of the fitting hole, the elastic pieces being provided along an outer edge of the fitting convex portion, wherein at least a pair of the elastic pieces for holding the thin plate shaped body among the plurality of elastic pieces are disposed at positions to avoid areas through which the plurality of driven rollers disposed at an appropriate distance in an axis line direction from the driving roller pass.