摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device by which concentration can be accurately detected in the case of AI mode(automatic recovering mode for image forming device). SOLUTION: This image forming device is equipped with a fur brush 15 provided on a cleaning device removing toner remaining on a photoreceptor, a high-voltage circuit 28 applying a bias to the brush 15, an AI sensor 22 arranged proximately to the photoreceptor and detecting the toner concentration on the photoreceptor, and a base plate to which the brush 15 and the sensor 22 are attached. A controller 26 inhibits the bias from being applied to the brush 15 in the case of the AI mode operating the sensor 22. |