Copying machine

摘要

A xerography type copy machine is disclosed. The machine has a photo conductor and a brush covered with a flexible sheet material for applying powdered material to the photo conductor of said xerography type machine. The flexible material contains particles of a permanently magnetized material, encapsulated in the flexible sheet. A permanent bar magnet is supported adjacent the flexible sheet on the side thereof remote from the photoconductor. The permanent magnet has a pole extending perpendicular to the direction of travel of the sheet so that when the magnetic field from the bar magnet passes through the laterally extending magnetic poles of the sheet, it alternately aids and opposes the field of the magnets on the sheet thereby causing the magnetic particles attracted to the sheet to bristle out and retract back to the sheet thereby causing the powder to form bristles which brush against the photo conductor and allow toner to be attracted to the charged parts of the photo conductor to form an image.