| 摘要 |
PURPOSE:To recover all waste toner without any special member nor any special space by conveying the toner which is discharged from an image formation part to a fixing device part, discharging the toner which is conveyed to the used part of a cleaning web, and taking up and recovering the toner together with the used part. CONSTITUTION:The image formation part A discharges the residual toner on a photosensitive drum 1 after transfer by a cleaning device 7 and this waste toner is received by the toner receiver 21 of the cleaning device 7. The waste toner in the toner receiver 21 is sent in a transportation pipe 22 by a screw 23, conveyed toward the tip part of a discharge part 22a by the transportation pipe 22 through the rotation of a coil spring 24, and discharged onto the used part 14a of the cleaning web 14 from the toner discharge port 22b of the toner discharging part 22a. The cleaning web 14 is taken up around a take-up roller 16 bit by bit to include the discharged waste toner. Consequently, the waste toner can be recovered without any special member nor any special space. |
