Samsung Xpress C480FW - LSU (Laser Scanner Unit)

2.Productspecicationanddescription
2.2.4.5.LSU(LaserScannerUnit)
TheLSU(LaserBeamPrinter)isasealedfactoryassemblyinwhichthevideodatareceivedtothecontrollerisusedtoform
anelectrostaticlatentimageontheOPCdrum.Itisaccomplishedbyuseofapolygonmirrorandlaserbeam.TheOPC
drumisturnedwiththepaperfeedingspeed.TheHSYNCsignaliscreatedwhenthelaserbeamfromLSUreachestheend
ofthepolygonmirror,andthesignalissenttothecontroller.ThecontrollerdetectstheHSYNCsignaltoadjustthevertical
lineoftheimageonpaper.Inotherwords,aftertheHSYNCsignalisdetected,theimagedataissenttotheLSUtoadjust
theleftmarginonpaper.Theonesideofthepolygonmirrorisonelineforscanning.
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