BIASED CLEANING BLADE / DISCHARGE PHOTORECEPTOR / TONER RECOVERY AIR REMOVAL CLEANING SYSTEM
Original Publication Date: 1994-Feb-28
Included in the Prior Art Database: 2004-Apr-06
Xerox Disclosure Journal
A cleaning configuration combining a rear exposure photoreceptor discharge, a biased cleaning blade and a toner removal air exhaust that improves cleaning of residual toner remaining after the transfer of a developed toner image from a photoreceptor in a printing machine is disclosed. A current problem with cleaning blade sub-systems is that toner builds up in small wedge shaped gaps between the blade and the photoreceptor (which is upstream from the blade). The disclosed cleaning configuration alleviates the aforementioned problem while improving cleaning blade life by: exposing the photoreceptor from the rear to reduce electrostatic force; using a conductive blade with a bias to repel toner; and using a waste toner air removal system.