Electrophotography – Cleaning of imaging surface – Blade
Patent
1996-11-26
1998-11-10
Royer, William
Electrophotography
Cleaning of imaging surface
Blade
152565, 428408, 430125, G03G 2100
Patent
active
058358382
ABSTRACT:
An apparatus for cleaning a charge retentive surface of a photoreceptor which includes a cleaning blade or brush for removing debris from the charge retentive surface of a photoreceptor. In the environment of a xerographic copier and/or printer, corona effluents are emitted by the high voltage charging devices. These effluents, which are strong oxidizing/ozonating agents, may be adsorbed by or otherwise attach a cleaning blade, brush or corona-proximate polymer matrix device or housing. Thereafter, such corona species outgassing may chemically and/or otherwise attack the photoreceptor during prolonged proximate exposure or contact, resulting in print/copy defects, as well as permanent damage to the photoreceptor and/or cleaning blade, brush or other device. The apparatus for cleaning relates to impregnation or treatment with an antiozonant such that its presence in the polymer matrix can prevent corona species penetration or accumulation by chemically neutralizing and destroying the species upon exposure. Impregnation or treatment can be performed with a variety of antiozonant materials to hinder or eliminate the corona species absorption and accumulation so as to resolve corona species outgassing-related problems.
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Royer William
Xerox Corporation
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