SELF-TRIGGERING QUALITY CONTROL SENSOR

SELF-TRIGGERING QUALITY CONTROL SENSOR

B0980022 A system for checking copy quality variables within an electrophotographic copier machine involving the production of a developed sample test area and a base reference test area on a photoreceptive surface. An optical transducer is used to view the test area and circuits are provided to pro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: PRIES, ROBERT W
Format: Patent
Sprache:eng ; fre
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MAGNETOGRAPHY
MEASURING
PHOTOGRAPHY
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:B0980022 A system for checking copy quality variables within an electrophotographic copier machine involving the production of a developed sample test area and a base reference test area on a photoreceptive surface. An optical transducer is used to view the test area and circuits are provided to produce an output signal indicative of quality. The circuit triggers itself by detecting a substantial change in tranducer produced signal level when the sample test area is viewed, thus negating the requirement that the test circuits be operated under the control of the machine.