Patent ID: 9122208
Filing Date: 2015-09-01
Classification: G03G

Abstract:
1. A belt cleaning device for an endless belt which has a bearing surface for bearing a toner image and is rotated in a predetermined direction, comprising: a cleaning unit which is arranged to face the bearing surface and removes residual toner remaining on the bearing surface; and a toner rubbing portion which is arranged to face the bearing surface at a side upstream of the cleaning unit in the rotating direction of the belt and charges the residual toner by rubbing the residual toner; wherein: the toner rubbing portion includes brush bristles whose tips are faced toward the bearing surface and which are charged when rubbing the residual toner; the brush bristles include first bristle-like bodies to be positively charged and second bristle-like bodies to be negatively charged; and the first and second bristle-like bodies are alternately arranged in a predetermined first direction.