Optical scanner and image forming device incorporating same

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United States of America Patent

PATENT NO 9864296
SERIAL NO

14643122

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Abstract

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An optical scanner includes a light source including a plurality of light emitting elements, a polygon mirror which deflects light from the light source for scanning a surface of a subject, an optical element arranged between the light source and the polygon mirror, having optical power in a sub scanning direction, a synchronous detector which detects the light deflected by the polygon mirror for synchronous detection and generates a signal for controlling a timing at which the scanning of the surface is started, and a fixing element which secures one end of the optical element. The light emitting elements of the light source are aligned with a certain tilt angle relative to the sub scanning direction. Light from one of the light emitting elements disposed closest to the fixing element in a main scanning direction is used for synchronous detection.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDTOKYO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arai, Nobuyuki Kanagawa, JP 59 641
Fujii, Tomoya Kanagawa, JP 32 109
Imaki, Daisuke Tokyo, JP 15 95
Kusunose, Noboru Kanagawa, JP 23 604
Nakamura, Tadashi Tokyo, JP 346 4075
Sakaue, Yoshinobu Kanagawa, JP 28 240

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