| 摘要 |
An isolating wall is provided for isolating, from a space outside the isolation wall, a space including: a photosensitive drum; a developing unit; a charging device; a transfer device; and a fixing device. With this configuration, the space in which powder toner (toner which is not fixed on a recording material by the fixing device) is present is isolated from the space outside the isolation wall. Thus, in an image forming apparatus using powder developer, this configuration makes it possible to (i) prevent the floating toner from going out of the image forming apparatus, or (ii) prevent the floating toner from deteriorating a function of the image forming apparatus.
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