| 摘要 |
PURPOSE:To prevent dropping of a toner when a recovering vessel is attached and detached, by providing a shutter member, which is operated to open and close a discharge exit in accordance with attachement and detachment of the toner recovering vessel, in a toner discharge exit. CONSTITUTION:A toner discharging case 1 is provided between a cleaning part and the attaching position of a toner recovering vessel 9, and an aperture part 1a through which the untransferred toner on a photoreceptor carried by a toner discharging screw 2 is discharged is provided above the toner recovering vessel 9. A contact piece 3a which is brought into contact with a shoulder part 9a of the vessel 9 is bent and formed in the deep end part of a shutter member 3 which is guided by a guide 1b, which opens and closes this aperture part 1a and is provided on the lower face of the discharging case 1, and is attached so as to slide in the direction of insertion and removal of the toner recovering vessel 9 and consists of nonmagnetic materials, and a compression spring 5 which energizes to close always the aperture part 1a is provided between the rear face of the contact piece 3a and a frame plate 4. |
