Patent ID: 6951496

Claim:
A method of manufacturing an image-forming apparatus comprising an airtight container, the method comprising the steps of: (A) providing a face plate having an image forming member; (B) providing a rear plate; (C) providing a supporting frame which includes an external surface constituting part of an external surface of the container and having corners, at least one of which comprises an external surface with a radius of curvature R 2 ; (D) supplying a first adhesive to a sealing region between the face plate and the supporting frame; (E) supplying a second adhesive to a sealing region between the rear plate and the supporting frame; and (F) connecting the face plate, the rear plate, and the supporting frame by heating the first and second adhesives, wherein the radius of curvature R 2 is equal to or greater than 1 mm but not greater than 40 mm.