公开(公告)号：AU3256478A

公开(公告)日：1978-05-25

申请号：AU3256478

申请日：1978-01-19

Applicant: IBM

Inventor： SIMPSON HENRY WELLINGTON ,  CAUDILL ALLISON HOLLAND ,  HOEKZEMA RONALD JOSEPH ,  WILSON CLEMENT C

IPC: G03G15/08 ,  G03G9/10 ,  G03G21/00

公开(公告)号：DE2459157A1

公开(公告)日：1975-06-26

申请号：DE2459157

申请日：1974-12-14

Applicant: IBM

Inventor： CAUDILL ALLISON HOLLAND ,  HOEKZEMA RONALD JOSEPH ,  WILSON CLEMENT C ,  LEXINGTON KY

IPC: G03G15/08 ,  G03G21/10

Abstract: A portion of a xerographic development material is slowly circulated past a vertically oriented porous wall where it serves as a filter for airborne toner particles flowing therethrough. Toner enriched development material is returned to the main body of development material for reuse. Toner particles cleaned from residual xerographic images are conveniently transported by airflow entrainment to the development material filter.