PURPOSE: To solve environmental problems by reducing the use of plastic material and to facilitate waste disposal by constituting a container main body from a plastic mold part and a paper mold part.

CONSTITUTION: The container main body A is constituted of the plastic sheet mold side (a) on a side corresponding to a photosensor B to detect the heaped condition of waste toner and the paper plate (b) coated with heat seal agent on the opposite side as the former. A rib is formed protruding inward for retaining the shape in a front surface part 1. The heat seal a gent is applied on the paper plate (b) constituting the container main body A by carrying out heat sealing on the opposite side to the plastic mold side (a) and its shape is formed in identical projecting shape as the front surface view of the plastic mold part (a). The comparatively flat shaped container main body A is constituted by having the plastic mold side (a) heat sealed by the periphery flange part 9 against such paper plate (b).