UNEVEN ROTATION DETECTION DEVICE

PROBLEM TO BE SOLVED: To provide an uneven rotation detection device that accurately detects uneven rotation in a photoreceptor drum without requiring any expensive encoders by providing a specific line pattern at the periphery section of a rotor drum (the photoreceptor drum). SOLUTION: The uneven r...

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Bibliographic Details
Main Author NUMAKURA SATORU
Format Patent
LanguageEnglish
Published 25.03.2004
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide an uneven rotation detection device that accurately detects uneven rotation in a photoreceptor drum without requiring any expensive encoders by providing a specific line pattern at the periphery section of a rotor drum (the photoreceptor drum). SOLUTION: The uneven rotation detection device comprises: the photoreceptor drum 1; a lens 2 for imaging in a sensor 3; the sensor 3 for photoelectrically converting an optical image being imaged by the lens 2; a signal processing section 4; an uneven rotation operation section 5 for performing the detection processing of the uneven rotation based on a signal regarding a line pattern being processed at the signal processing section 4 and a pulse outputted from the encoder 9, a control section 6 for rotating and controlling a motor 8 from the calculated result; a driving section 7 for supplying a drive current to the motor 8; the motor 8 that rotates the photoreceptor drum 1; and the encoder 9 that is mounted to the axis center of the motor and generates the pulse according a rotational speed. On the photoreceptor drum 1, a variable-width line pattern 10 is formed. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020258170