Patent ID: 7783234
Filing Date: 2010-08-24
Classification: G03G

Abstract:
1. A shutter device that prevents developer from spilling, the shutter device comprising: a sealing member that includes an opening and that is compressible; and a shutter that includes an opening larger than an entire edge section of the opening of the sealing member, the sealing member being fixed to a wall member different from the shutter device in such a manner that an opening of the wall member opposes the opening of the sealing member, the sealing member being compressed between the wall member and the shutter at a position where the opening of the shutter and the opening of the sealing member oppose each other, and when the shutter and an opposing member different from the shutter device are oppositely located, the entire edge section of the opening of the sealing member that opposes the opening of the shutter being capable of contacting the opposing member.