Patent ID: 8655232

Claim:
A processing cartridge, comprising a powder tube used for storing toner, a sliding member capable of sliding freely in the powder tube and a mechanism for holding the sliding member, a powder outlet portion arranged on the powder tube, a powder outlet arranged on the powder outlet portion, the sliding member closing the powder outlet under the action of the mechanism under the non-use state and opening the powder outlet under the action of an external force under the use state, wherein, an internal member provided with an internal powder feeding opening is arranged inside the powder outlet portion, wherein the mechanism for holding the sliding member consists of a first magnetic member which is arranged on the powder tube and a second magnetic member which is arranged on the sliding member and generates a mutual magnetic force with the first magnetic member, wherein the sliding member is a hollow cylinder provided with an intermediate powder feeding opening; under the non-use state, the sliding member causes the intermediate powder feeding opening, the powder outlet of the powder tube, and the internal powder feeding opening of the internal member to be distributed in a staggered way under the action of the magnetic force of the first magnetic member and the second magnetic member, and a powder outlet channel is closed; and under the use state, the sliding member moves under the action of the external force to cause the intermediate powder feeding opening to be butted with the powder outlet of the powder tube and the internal powder feeding opening of the internal member, and the powder outlet channel is opened, the internal member and the powder outlet portion form a certain space, the sliding member is capable of sliding in the space formed by the powder outlet portion and the internal member; and the internal powder feeding opening of the internal member is butted with the powder outlet.