Patent ID: 8639165

Claim:
A powder container comprising: a containing portion that is capable of containing powder therein, the containing portion having an opening through which the powder passes; an opening/closing member that is supported by the containing portion so as to be movable between an open position at which the opening is open and a closed position at which the opening/closing member closes the opening; and an engaged portion disposed on a side surface of the opening/closing member with respect to an installation direction, the installation direction being a direction in which the containing portion is removably installed into an apparatus, the engaged portion restraining a movement of the opening/closing member by being engaged with an engaging portion of the apparatus when the containing portion is installed in the apparatus, wherein the engaged portion includes protrusions and recesses that are arranged at a regular pitch in the installation direction, the protrusions and recesses corresponding to recesses and protrusions formed on the engaging portion.