INSPECTION DEVICE OF ELECTROPHOTOGRAPHIC PHOTORECEPTOR DEFECT

PURPOSE:To efficiently and precisely detect all defects such as irregularity and color shade estimated on a photoreceptor surface. CONSTITUTION:A photoreceptor drum 1 is laid in the counterclockwise rotating state at low speed by a driving device 2, a first high frequency fluorescent lamp 5 is first...

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Bibliographic Details
Main Authors TAMAKI KIYOSHI, NISHIZAKI KOJI
Format Patent
LanguageEnglish
Published 19.05.1995
Edition6
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MAGNETOGRAPHY
MEASURING
PHOTOGRAPHY
PHYSICS
TESTING
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Summary:PURPOSE:To efficiently and precisely detect all defects such as irregularity and color shade estimated on a photoreceptor surface. CONSTITUTION:A photoreceptor drum 1 is laid in the counterclockwise rotating state at low speed by a driving device 2, a first high frequency fluorescent lamp 5 is first lighted, the positive reflected light from the drum surface is received by a line sensor 4, and according to the electric signal outputted therefrom, the presence of color shade is detected in an image processing device 7. Further, a second high frequency fluorescent lamp 6 is lighted instead of the first high frequency fluorescent lamp 5, the scattered light from the drum surface is received by a line sensor 4, and according to the electric signal outputted therefrom, the presence of irregularity is detected in an image processing device 7.
Bibliography:Application Number: JP19930277015