| 摘要 |
Disclosed is a developer vessel for containing a developer therein, which is attached to a developing device of an electrophotographic copying machine and is used as a developer hopper, said developer vessel comprising a vessel proper (1) having a closed top (11), a barrel (12) and a tapered inclined portion (13) continuous to the barrel (12), recited from the top in the state where the vessel is attached to the developing device, a receiving plate (2) formed integrally with the vessel proper (1), which has a substantially flat supporting surface (21), substantially straight two side edges (22a, 22b) for attachment to the developing device and an opening (23) communicating with the vessel proper (1), an opening tab (3) composed of a film which covers the opening of the receiving plate (2) and is peelably bonded to the flat supporting surface, and a shutter (4) composed of a plate having, on both the sides, engagement portions to be engaged with both the side edges of the receiving plate (2), wherein said film has a width smaller than the distance between both the attachment side edges of the receiving plate (2), and said film has such a length that the film is folded on the fitting and inserting end of the receiving plate and the lapel of the folded film is protruded from the other end of the receiving plate (2). |
