Contents
2.6.3.Fuserunittemperaturecontrol........................................................................................2−31
2.7.LaserScanningUnit(LSU)........................................................................................................2−32
2.7.1.LaserScanningUnitOverview.......................................................................................2−32
2.7.2.LaserScanningOpticalpath..........................................................................................2−33
2.8.DriveSystem..........................................................................................................................2−34
2.8.1.DriveMotors..............................................................................................................2−34
2.8.2.MainDriveUnit..........................................................................................................2−36
2.8.3.ExitDriveUnit...........................................................................................................2−37
2.8.4.TrayLiftingDriveUnit.................................................................................................2−38
2.9.ScannerSystem.......................................................................................................................2−39
2.10.HardwareConguration............................................................................................................2−43
2.10.1.Mainboard.................................................................................................................2−45
2.10.2.MSOK......................................................................................................................2−47
2.10.3.FaxCard....................................................................................................................2−47
2.10.4.OPE..........................................................................................................................2−48
2.10.5.USBHostPBA...........................................................................................................2−50
2.10.6.SMPSboard...............................................................................................................2−51
2.10.7.FuserDriveBoard(FDB)..............................................................................................2−53
2.10.8.HVPSboard...............................................................................................................2−55
2.10.9.SCFboard..................................................................................................................2−56
2.10.10.EraserPBA................................................................................................................2−57
2.10.11.Cover-OpenPBA........................................................................................................2−57
2.10.12.Deve_TonerCrumJointPBA.........................................................................................2−58
2.10.13.TonerRemainSensorPBA............................................................................................2−58
2.10.14.JointPBA..................................................................................................................2−59
2.10.15.CRUMPBA...............................................................................................................2−59
2.10.16.SensorLocation..........................................................................................................2−60
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.SCFSeparationRoller....................................................................................................3−6
3.2.5.SCFPick-upRollerandForwardRoller.............................................................................3−7
3.3.ReplacingthemainSVCpart.......................................................................................................3−8
3.3.1.RearCover...................................................................................................................3−8
Copyright©1995-2017SAMSUNG.Allrightsreserved.ii
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