VACUUM COUPLING ARRANGEMENT FOR APPLYING VIBRATORY MOTION TO A FLEXIBLE PLANAR MEMBER

摘要

A resonator suitable for generating vibratory energy is arrangedin line contact with the back side of a charge retentive member bearing animage on a surface thereof, in an electrophotographic device, to uniformlyapply vibratory energy to the charge retentive member. The resonatorcomprises a vacuum producing element, a vibrating member, and a sealarrangement. When the vibratory energy is to be applied to the chargeretentive surface, a vacuum is applied by the vacuum producing element atthe point of contact with the charge retentive surface resonator, to drawthe surface into intimate engagement with the vibrating member, and sealarrangement. The invention has application to a transfer station ofenhancing electrostatic transfer for toner from the charge retentive surfaceto a copy sheet, and to a cleaning station, where mechanical vibration ofthe surface will improve the release of residual toner remaining aftertransfer.