Samsung SL-M4580FX - Page 3

Contents
2.6.3.Fuserunittemperaturecontrol........................................................................................2−32
2.7.LaserScanningUnit(LSU)........................................................................................................2−33
2.7.1.LaserScanningUnitOverview.......................................................................................2−33
2.7.2.LaserScanningOpticalpath..........................................................................................2−34
2.8.DriveSystem..........................................................................................................................2−35
2.8.1.DriveMotors..............................................................................................................2−35
2.8.2.MainDriveUnit..........................................................................................................2−37
2.8.3.ExitDriveUnit...........................................................................................................2−38
2.8.4.TrayLiftingDriveUnit.................................................................................................2−39
2.9.ScannerSystem.......................................................................................................................2−40
2.9.1.Scannersystemoverview..............................................................................................2−40
2.9.2.ScannerSystemComponents.........................................................................................2−41
2.10.HardwareConguration............................................................................................................2−42
2.10.1.Mainboard.................................................................................................................2−44
2.10.2.MSOK......................................................................................................................2−45
2.10.3.SO-DIMMPBA..........................................................................................................2−46
2.10.4.FaxCard(Optional).....................................................................................................2−46
2.10.5.OPE..........................................................................................................................2−47
2.10.6.USBHostPBA...........................................................................................................2−48
2.10.7.SMPSboard...............................................................................................................2−49
2.10.8.FuserDriveBoard(FDB)..............................................................................................2−51
2.10.9.HVPSboard...............................................................................................................2−53
2.10.10.SCFboard..................................................................................................................2−54
2.10.11.EraserPBA................................................................................................................2−55
2.10.12.Cover-OpenPBA........................................................................................................2−55
2.10.13.Deve_TonerCrumJointPBA.........................................................................................2−56
2.10.14.TonerRemainSensorPBA............................................................................................2−56
2.10.15.JointPBA..................................................................................................................2−57
2.10.16.EEPROMPBA...........................................................................................................2−58
2.10.17.CRUMPBA...............................................................................................................2−58
3.DisassemblyandReassembly................................................................................................................3−1
3.1.Precautionswhenreplacingparts..................................................................................................3−1
3.1.1.Precautionswhenassemblinganddisassembling.................................................................3−1
3.1.2.PrecautionswhenhandlingPBA.......................................................................................3−1
3.1.3.ReleasingPlasticLatches................................................................................................3−2
3.2.Replacingthemaintenancepart....................................................................................................3−3
3.2.1.FuserUnit....................................................................................................................3−3
3.2.2.TransferRoller..............................................................................................................3−4
3.2.3.Pick-Up_Forwardroller..................................................................................................3−5
3.2.4.DSDFpickuprollerAssy...............................................................................................3−6
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