BLADE CLEANER WITH BACK UP ROLLER
Original Publication Date: 1990-Jun-30
Included in the Prior Art Database: 2004-Apr-05
Xerox Disclosure Journal
In electrostatographic printing apparatus using a belt photoreceptor and blade cleaning of any residual toner from the photoreceptor a cleaning platen opposite the blade and on the underside of the belt is generally provided as a back up surface to maintain the cleaning relationship between the blade and the belt. While the design works very well, particularly at low process speeds. it does cause wear to the back of the belt as it is pulled across the stationary platen at higher process speeds which may result in damage to or premature failure of the belt. In addition, the cleaner platen also shows signs of wear particularly at the blade nip as manifested by a depression beneath the blade tip and scratch lines or grooves in the process direction. This difficulty may be overcome by replacing the stationary cleaning platen with a roller which may be either an idler or a driven roller driven at the same speed as the photoreceptor. This would reduce the sliding friction of the photoreceptor and platen interface and reduce wear and damage to the photoreceptor.