| 摘要 |
An image forming apparatus having a device for supplying toner to a developing unit and for collecting the unused portion of the toner for treatment. The apparatus has a photosensitive member, an image forming member for forming an electrostatic latent image on the surface of the photosensitive member, a developing member for developing the electrostatic latent image with toner, a toner accommodating member containing unused toner and connected with the developing member through a first toner transport channel, a first transport member for transporting the unused toner to the developing member through the first toner transport channel, a cleaning member for removing residual toner remaining on the photosensitive member, a toner collecting member for collecting the removed residual toner, a second toner transport channel leading from the cleaning member to the toner collecting member for collecting removed toner therein and further downstream to the first toner transport channel, and a second transport member for transporting the removed toner to the toner collecting member and to the first toner transport channel when the toner collecting member is substantially filled with removed toner.
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