Samsung Xpress M2022W - LSU (Laser Scanner Unit)

2.ProductSpecicationsandDescription
2.2.4.5.LSU(LaserScannerUnit)
ItisthecorepartoftheLBPwhichswitchesfromthevideodatareceivedtothecontrollertotheelectrostaticlatentimage
ontheOPCdrumbycontrollinglaserbeam,exposingOPCdrum,andturningprincipleofpolygonmirror.TheOPCdrumis
turnedwiththepaperfeedingspeed.TheHSYNCsignaliscreatedwhenthelaserbeamfromLSUreachestheendofthe
polygonmirror,andthesignalissenttothecontroller.ThecontrollerdetectstheHSYNCsignaltoadjusttheverticallineof
theimageonpaper.Inotherwords,aftertheHSYNCsignalisdetected,theimagedataissenttotheLSUtoadjusttheleft
marginonpaper.Theonesideofthepolygonmirrorisonelineforscanning.
Copyright©1995-2013SAMSUNG.Allrightsreserved.2-15