Abstract: A method of supplying toner for refilling a process cartridge of an image forming apparatus of electrophotographic recording system without contaminating the hands of the operator and the image forming apparatus. A process cartridge for an image forming apparatus in which supply toner is supplied to the toner supply section from the outer section, is provided with a toner supply section for supplying toner to a development unit. The process cartridge is provided with a supply toner container made up of material capable of being cut and for containing supply toner, a supply toner container accommodating section for receiving the supply toner container, an edge body for cutting the container, a male screw member for pushing the container so as to be cut, and an engaging member for blocking the passage of cut chips.