Patent ID: 8185011

Claim:
An image carrier cleaning device, comprising: a movable image carrier for carrying a toner image on a surface of the image carrier; a first roll brush including a first rotating shaft and a first brush fiber planted on the first rotating shaft so as to radially extend and have rotational contact with the surface of the image carrier; a first bias application section for applying a bias to the first roll brush; a second roll brush including a second rotating shaft and a second brush fiber planted on the second rotating shaft so as to radially extend and have rotational contact with the surface of the image carrier, the second roll brush being placed downstream of the first roll brush in a moving direction of the image carrier; and a second bias application section for applying a bias to the second roll brush, wherein a triboelectric charge polarity of the first brush fiber against the toner is different from a triboelectric charge polarity of the second brush fiber against the toner, wherein the first bias application section applies a bias having a polarity identical to the triboelectric charge polarity of the first brush fiber against the toner, and the second bias application section applies a bias having a polarity identical to the triboelectric charge polarity of the second brush fiber against the toner.