Toner container, toner supply system, developer cartridge and image forming apparatus using same

摘要

A toner supply container for supplying toner into a main assembly of an electrophotographic image forming apparatus includes a toner accommodating portion for accommodating toner to be supplied into a main assembly of the electrophotographic image forming apparatus; a toner discharging opening for discharging the toner accommodated in the toner accommodating portion, the toner discharging opening being provided in the toner accommodating portion; a sealing member for openably sealing the toner discharging opening; an openable member for openably sealing the toner discharging opening; a rotatable member which is rotatable relative to the toner accommodating portion; a rotating force receiving portion for receiving rotating force produced by rotation of the rotatable member through a rotating force transmission member provided in the main assembly of the electrophotographic image forming apparatus to unseal the toner discharging opening by the rotation of the rotatable member when the toner supply container is mounted to the main assembly of the electrophotographic image forming apparatus.