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US20080239060 IMAGE FORMING APPARATUS AND LASER SCANNING UNIT AND POLYGON MIRROR THEREOF  
An image forming apparatus includes a photoconductor, a laser scanning unit to scan a beam across the photoconductor to form an electrostatic latent image on the photoconductor, a developing unit...
US20060139442 Polygon mirror drive motor and laser mirror radiation device  
To enable preventing any unevenness in a synchronous signal itself from being caused owing to errors of placement of various components so as to deteriorate a detection accuracy; and by applying...
US20070216758 Driving control device, image forming apparatus and recording medium for recording driving control program  
A control unit for a copying machine is equipped with a first rotation speed detecting unit for detecting a first rotation speed as a rotation speed of a polygon mirror; a switching judging unit...
Matches 1 - 3 out of 3