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US 4,398,820 AGranted
Cleaning system
AssigneeXerox Corporation
InventorBruce E. Thayer
Life of this patent
Estimating the term…
Abstract
A cleaning apparatus used in an electrophotographic printing machine for removing residual toner particles from a photoconductive member. The cleaning apparatus includes an electrically conductive roller in resilient engagement with the photoconductive member to define an extended cleaning region. A voltage source electrically biases the roller to attract the toner particles thereto in the extended cleaning region.
Claims18
An electrophotographic printing machine of the type having residual toner particles adhering to a photoconductive member, wherein the improvement includes:
- electrically conductive means, in resilient engagement with the photoconductive member to define an extended cleaning region therebetween, for transporting the toner particles away from the photoconductive member;
- and
- means for electrically biasing said transporting means to attract the toner particles from the photoconductive member to said transporting means in the extended cleaning region.
Dependencies are inferred from the claim text.