Apparatus and method for measuring and maintaining copy...

Details Apparatus and method for measuring and maintaining copy... Apparatus and method for measuring and maintaining copy...

G - Physics

03

G

314/36

G03G 15/02 (2006.01) G03G 15/06 (2006.01)

Patent

CA 1162587

ABSTRACT Factors affecting copy quality are continuously adjusted during copying in accordance with the actual charge on the photoconductor relative to a fixed reference potential. The photoconductor, carried on a moving, partially exposed, constant potential conductive support, is sensed by a probe. The probe supplies a signal as a function of the potential on portions of the photoconductor and the conductive support passing by the probe. A circuit converts the probe signals into digitized values representing the current photoconductor potential relative to the support. The digitized values adjust copier parameters to compensate for deviations of photoconductor potential from pre- determined desired values. B0977024

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