| 摘要 |
<p>A belt cleaning device includes a collection roller, a cleaning blade, a sealing member, a first thrust mechanism, and a second thrust mechanism. The collection roller collects remaining toner on an intermediate transfer belt. The cleaning blade extends along the collection roller and scrapes off the toner of a surface of the collection roller. The sealing member softly comes into contact with the surface of the collection roller and prevents counterflow of the toner. The first thrust mechanism displaces the collection roller in its rotating shaft direction by a rotational driving force transmitted to the collection roller and the second thrust mechanism thrusts the cleaning blade in the rotating shaft direction of the collection roller in a thrust cycle shorter than that of the collection roller based on the first thrust mechanism.</p> |
