Samsung CLX-8640ND - Laser Synchronizing Detectors

2.ProductspecicationsandDescription
2.7.3.Lasersynchronizingdetectors
Themachinehastwobeamdetectorsensorboards(PDPBA).Theyarelocatedateachcornerofthelaseroptics-housingunit.
ThetwoPDPBAdetectthefollowing:
•[A]:Scanningstartpositionforblack
•[B]:Scanningstartpositionformagenta
Thismachinerecognizeseachcolorfromthetimethattheyaredetected.
■MainScanStartDetection
4beamsaredetectedbythePDPBAatthescanningstartpointandcreatethehorizontalsync(Hsync)signal.Datais
scannedbyHsync.
Thearrowintheabovediagramshowsthedatascanningdirectionforeachcolor.Black(&Cyan)andYellow(&Magenta)
usethesamepolygonmotorscanninginoppositedirections.
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