| 摘要 |
PURPOSE:To prevent the leakage of a developer beginning to spill by providing a sealing member which closes the opening part of a process cartridge and removing the sealing member in the stage of use. CONSTITUTION:A sealing member 51 is pasted by means of an adhesive agent to the peripheral frame body 14c of an opening 16 by closing a slit opening 16 for exposure. When the operator holds a grip part 51a provided at the end on the operator side where no sealing member 51 is adhered and pulls the same in the arrow A direction on the operator side in the stage of using a cartridge 14, the sealing member 51 is stripped from the body 14c and the opening 16 is opened. |
