| 摘要 |
PURPOSE:To observe the state of toner recovery at any time to forecast the expiration of the life of a photosensitive body by providing a toner recovery case with a window through which the expansion state of a toner recovery vessel is observed and storing toner in the toner recovery vessel while compressing it with the toner pressing force of a toner carrying body. CONSTITUTION:Toner 11 scraped from a photosensitive body 1 is pressed into a toner guide path 4; and when the toner guide path 4 is filled up with the toner 11, a bellows part 5-1 of a toner recovery vessel 5 is expanded, and the toner 11 is stored in the toner recovery vessel 5 while being compressed to expand the toner recovery vessel 5. A detector operating member 9 is provided in the front end of the toner recovery vessel 5, and a toner recovery case 6 is provided with a toner fullness detector 10, and this detector is operated when the toner recovery vessel 5 is filled up with the toner 11 and is expanded up to the maximum. The toner recovery case 6 is provided with a window 6-1 in the expansion direction so that the expanding state of the toner recovery vessel can be observed from the outside. Thus, this window is used also to report the expiration of the life of the photosensitive body. |
