Toner supplying container and image forming apparatus

An image forming apparatus comprising:

• a toner supply container for supplying toner to the main assembly of the apparatus, said toner supply container being detachably mountable to the main assembly of the apparatus;
• a main assembly shutter member provided in the main assembly of the apparatus and capable of opening and closing a toner reception opening for receiving a supply of the toner from said toner supply container;
• wherein said toner supply container includes:
• a main body for accommodating the toner;
• a discharging opening for discharging the toner accommodated in the main body;
• a container shutter member for opening and closing said discharging opening, said container shutter member being provided with an engaging portion engageable with a main assembly shutter member provided in the main assembly of said apparatus, wherein said main assembly shutter member is openable and closable relative to a toner reception opening of the main assembly of said apparatus while said container shutter member and said main assembly shutter member are interrelated with each other, and wherein said engaging portion is capable of passing by a position corresponding to said discharging opening;
• a cover part for covering said engaging portion relative to said discharging opening.