Photocopying – Contact printing – Light boxes
Patent
1989-04-10
1991-06-11
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355211, 355219, G03G 2100
Patent
active
050236610
ABSTRACT:
A process modification for the development of x-ray electrophotographic images with selenium photoreceptors wherein the occurrence of a catastrophic spot producing artifact called fatigue is eliminated. The process change consists of the addition of a photoreceptor pre-charging step immediately after thermal relaxation and before insertion of the photoreceptor in the elevator where it may be subsequently discharged by a suitable light source within thirty seconds of the pre-charging step. The effectiveness of the pre-charging step is achieved through field assisted detrapping of interference defect site injected holes which would otherwise detrap in the image charging step, thereby producing the fatigue artifact.
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Fender William D.
Jeromin Lothar S.
Cunha Robert E.
Grimley A. T.
Smith Matthew S.
Xerox Corporation
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