Device for detecting the toner in the developing unit of an electrophotographic apparatus

Disclosed is a versatile office machine, e.g. a laser printer, a facsimile machine, or an electronic copier, which includes a scanner for scanning a document, a developing unit for developing the scanned image of the document with a toner and a detector for detecting the toner in the developing unit...

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Bibliographic Details
Main Author PARK; GYEONG-HO
Format Patent
LanguageEnglish
Published 03.08.1999
Edition6
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
MEASURING
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
PHOTOGRAPHY
PHYSICS
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Summary:Disclosed is a versatile office machine, e.g. a laser printer, a facsimile machine, or an electronic copier, which includes a scanner for scanning a document, a developing unit for developing the scanned image of the document with a toner and a detector for detecting the toner in the developing unit. The device for detecting the toner can be constructed using a light emitting element mounted in the scanner to generate the light that is transmitted to the photoreceptor.
Bibliography:Application Number: US19970926236