| 摘要 |
<p>A cleaning unit (2) has a coating friction roller (21) and a bias roller (24). The coating friction roller (21) performs the function of coating an intermediate transfer body (1) with a cleaning liquid to weaken the coagulation/adherence of the remaining toner and the function of imparting a shearing force to the remaining toner to release it for dispersion in the cleaning liquid. Further, the bias roller (24) has a bias voltage producing mechanism (24a) for applying a bias voltage between itself and the intermediate transfer body (1). The application of bias voltage causes the remaining toner adhering to the surface of the intermediate transfer body (1) to have its adhering force weakened for release from the intermediate transfer body (1) and dispersion in the cleaning liquid. Further, the bias roller (24) collects the released and dispersed remaining toner.</p> |
