公开(公告)号：DE2262027A1

公开(公告)日：1973-06-28

申请号：DE2262027

申请日：1972-12-19

Applicant: IBM

Inventor： HARBOUR JUN WILMER PAUL ,  QUEENER CARL ALLAN

IPC: G03G21/10 ,  G03G21/00 ,  G03G15/00

Abstract: Cleaning apparatus for cleaning the residual toner image from an electrostatic plate of an electrostatic reproduction apparatus incorporates an open celled foam wiper which is mounted for wiping engagement with the plate. The foam wiper is mounted adjacent a conductor which is biased to attract charged toner particles to the wiper as the toner image moves relative therepast. The wiper is periodically cleaned by a serrated or grooved portion of the plate which follows the image and mechanically dislodges toner from the wiper. A reverse bias is applied to the conductor as the serrations on the plate move past the wiper creating a field between the wiper and the plate which repels toner from the wiper to the plate. The toner is carried by the serrations on the plate to the developer unit for use by the electrostatic reproduction apparatus.