公开(公告)号：CA1141816A

公开(公告)日：1983-02-22

申请号：CA344462

申请日：1980-01-28

Applicant: IBM

Inventor： ARMITAGE JOHN D JR ,  BARKLEY JOHN A ,  HOOKER ROSS B III ,  WALKER JAMES R

IPC: B41J2/45 ,  G03G15/04 ,  G03G15/043 ,  G03G15/047 ,  G03G21/14 ,  G03G15/22

Abstract: LIGHT PIPE FOR ACCURATE ERASURE OF PHOTOCONDUCTOR CHARGE Erase apparatus for use in an electrophotographic copier machine where an array of light-emitting diodes (LEDs) are placed adjacent one end of a light channel with the other end adjacent a moving photoreceptive surface. The channel allows light rays to pass freely from LED to LED but contains the rays in a direction parallel to the direction of photoreceptor movement. The channel may be comprised of sides with reflective surfaces normal to the photoreceptive surface or may be a solid plastic sheet through which the rays pass. In the latter embodiment, rays are internally reflected from the surfaces of the plastic sheet. BO978013