Patent ID: 8639163

Claim:
A toner box configured to be detachably mounted in a developing unit of an image-forming device, the toner box comprising: a main body that is configured to accommodate toner therein and that has a main-body-side communication through-hole, through which an interior and an exterior of the main body communicate; and a shutter configured to move between an open position in which the shutter is configured to open the main-body-side communication through-hole, and a closed position in which the shutter is configured to close the main-body-side communication through-hole, the shutter being formed of a film-shaped material that has a thickness of less than or equal to 250 micrometers and having a shutter drive opening configured to be engaged by a shutter drive protrusion provided on the developing unit, and the shutter drive opening is configured to receive the shutter drive protrusion such that a tip end of the shutter drive protrusion protrudes relative to the shutter drive opening toward the main body.