Drum cleaning process and apparatus for electrophotography

Details Drum cleaning process and apparatus for electrophotography Drum cleaning process and apparatus for electrophotography

G - Physics

03

G

15/1, 314/38

G03G 21/00 (2006.01)

Patent

CA 1066758

Abstract of the Disclosure Charging, imaging, developing and transfer units are operatively arranged about the circumference of a rotary photoconductive drum, the developing unit comprising a magnetic brush. A discharge unit is disposed between the transfer unit and the developing unit and comprises a light source and a corona discharge element to simultaneously illuminate the drum causing photoconduction and expose the drum to an electric field thereby neutralizing any residual charge on the drum and residual toner particles remaining on the drum after the transfer operation. The residual toner is subse- quently removed by the magnetic brush of the developing unit. -1-

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