Patent ID: 7945202
Filing Date: 2011-05-17
Classification: G03G

Abstract:
1. A cleaning apparatus comprising: a first brush roll which removes toner remaining on an image carrier from the image carrier; a second brush roll which removes the toner remaining on the image carrier, and is located on a downstream of the first brush roll in a moving direction of the image carrier; a first recovery device which recovers the toner deposited on the first brush roll; a second recovery device which recovers the toner deposited on the second brush roll; a first electric field forming device which forms an electric field between the first brush roll and the image carrier, the first electric field being capable of transferring the toner of the image formed on the image carrier from the image carrier to the first brush roll; and a second electric field forming device which forms and electric field between the second brush roll and the image carrier, the electric field being capable of transferring the toner which has a polarity reverse to a polarity of the toner of the image formed on the image carrier and is deposited on the image carrier from the image carrier to the second brush roll, wherein the first brush roll and the second brush roll each has a configuration of a plurality of electrically conductive yarns arranged on a conductive substrate in a form of a brush, and a resistance R