Optical writing device and image forming apparatus incorporating same

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United States of America Patent

PATENT NO 9996021
APP PUB NO 20170242364A1
SERIAL NO

15427122

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Abstract

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An optical writing device and an image forming apparatus incorporating the optical writing device. The optical writing device includes two or more light sources, a pixel clock generator to measure a scanning speed of one of the two or more light sources and generate a pixel clock of a cycle corrected according to the measured scanning speed, a pulse data generation and output unit to generate pulse width data and shift data for the pixel clock generated by the pixel clock generator to output the generated pulse width data and the generated shift data for each one of the two or more light sources, and a plurality of image pulse generation and output units to generate an image pulse. In the optical writing device, the plurality of image pulse generation and output units are supplied with the pixel clock in common.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tokuda, Masashi Kanagawa, JP 8 96

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