DARK DECAY CONTROL SYSTEM UTILIZING TWO ELECTROSTATIC VOLTMETERS

A single pass tri-level imaging apparatus and method. Compensation for the effects of dark decay on the background voltage, V Mod, and the color toner patch, V tc readings is provided using two ESVs (ESV1 and ESV2), the former located prior to the color or DAD housing and the latter after it. Since...

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Hauptverfasser:	PALUMBO, KENNETH S, SCHEUER, MARK A, BERMAN, ROBIN E, MACDONALD, DANIEL W, DONALDSON, PATRICIA J, PAOLINI, ANTHONY L, HURWITCH, CARL B
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	A single pass tri-level imaging apparatus and method. Compensation for the effects of dark decay on the background voltage, V Mod, and the color toner patch, V tc readings is provided using two ESVs (ESV1 and ESV2), the former located prior to the color or DAD housing and the latter after it. Since the CAD and black toner patch voltages are measured (using ESV2) after dark decay and CAD voltage loss have occurred, no compensation for these readings is required. The DAD image voltage suffers little dark decay change over the life of the P/R so the average dark decay can be built into the voltage target.