| 摘要 |
PROBLEM TO BE SOLVED: To prevent splashed toner during the development from scattering inside the device main body, and letting the splashed toner restrained from soiling a developing sleeve. SOLUTION: The toner splashed by the developing sleeve 81a during the development, when developing device switching means 8 is rotated in the arrow A1 direction, is made flowing from the upstream toward the downstream along the developing device switching means 8. Accordingly, the image forming device is let setting filter means 803b provided with the air filter 804b in attachably/ detachably, on the periphery of the developing device switching means 8, taking in contaminated air from the arrow A2 direction, and discharging in the arrow A3 direction. |
