Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yumiko Higashi0
Eiji Nishikawa0
Kenji Izumiya0
Date of Patent
October 31, 2006
Patent Application Number
11235162
Date Filed
September 27, 2005
Patent Primary Examiner
Patent abstract
There is provided a controller that controls and drives the polygon mirror to a target speed with keeping a predetermined phase. When the controller controls the speed of the polygon mirror along with the image magnification adjustment, the controller controls the polygon mirror with a waiting time t1 from an end of the speed control of the polygon mirror for stabilizing before the phase control and a waiting time t2 from an end of the phase control of the polygon mirror for stabilizing, the t1 and t2 being set with a relation of t1<t2.
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