Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroaki Miyamura0
Date of Patent
January 27, 2009
0Patent Application Number
116417600
Date Filed
December 20, 2006
0Patent Primary Examiner
Patent abstract
A drive device 1 includes a motor 2, a planetary roller type power transmission unit and a drive control unit. The planetary roller type power transmission unit includes a plurality of planetary rollers 4, a ring 6, a fixed body 9 covering the ring 6 and having an aperture 9a located so that a projecting portion 6a is movable therein, a carrier roller 7, and an output shaft 8. A drive control unit 10 controls the rotation of a motor 2 of the drive device so that when the image forming device is not carrying out an image forming operation the projecting portion 6a of the ring 6 reciprocates within the aperture 9a of the fixed body 9.
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