{TAIL ~ A rotating polygon mirror driving apparatus} 1, wherein {HEAD ~ said bearing} is a dynamic pressure fluid bearing having a herringbone groove formed in one of said rotational shaft and said bearing sleeve for generating dynamic pressure 
{ TAIL ~ A rotating polygon mirror driving apparatus } 1 , wherein { HEAD ~ said bearing } is a dynamic pressure fluid bearing having a herringbone groove formed in one of said rotational shaft and said bearing sleeve for generating dynamic pressure
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH