| 摘要 |
PURPOSE:To provide a mechanism by which an opening to feed a toner from a toner holder to a developing roller can be closed and opened in a simple operation. CONSTITUTION:At the tip of a stirring vane 10 provided to the toner holder 8 of a process cartridge 1, a film form lid 13 with the size which can cover an opening 9 is connected, and a pressing member 16 having a frame 16b to squeeze the film form lid 13 to the peripheral edge of the opening 9 is provided in the toner holder 8, and by squeezing the film form lid 13 on the peripheral edge of the opening 9 by the frame 16b when the press cartridge is shipped, the opening 9 is kept in the closed condition, and when the process cartridge is used, the film form lid 13 is removed between the frame 16b and the opening 9 by rotating the stirring vane 10, so as to open the opening 9. |
