Patent ID: 8953972
Filing Date: 2015-02-10
Classification: G03G

Abstract:
1. A transfer roller cleaning apparatus that cleans a transfer roller of a wet type electronic photograph printer that uses developer consisting of a liquid toner and a carrier liquid, the apparatus comprising: a supply roller that is immersed in the carrier liquid in a carrier liquid vessel; a cleaning roller that is rubbed and rotated on the supply roller and the transfer roller, supplies the carrier liquid received from the supply roller to a surface of the transfer roller, and removes a residual toner from the surface of the transfer roller together with the carrier liquid; and a carrier liquid circulation device which includes the carrier liquid vessel, supplies the carrier liquid in a storage tank to the carrier liquid vessel using a pump, and sends the carrier liquid overflowed from the carrier liquid vessel back to the storage tank via an overflow liquid recovery path so as to constitute a carrier liquid circulation path; and a voltage application device which applies bias voltage to the cleaning roller, the bias voltage having opposite polarity to the residual toner on the surface of the transfer roller, wherein the cleaning roller is structured to be rubbed and rotated on the transfer roller in a forward direction thereof, and to be rotated at a peripheral speed which is lower than that of the transfer roller.