
Contents
2.2.5.5.HVPSboard.................................................................................................2−36
2.2.5.6.FaxBoard....................................................................................................2−37
2.2.5.7.WirelessLANboard(C3060FW).....................................................................2−38
2.2.5.8.ElectricalPartsLocation.................................................................................2−39
2.2.6.EngineFirmwareControlAlgorithm...............................................................................2−41
2.2.6.1.Feeding.......................................................................................................2−41
2.2.6.2.Transfer.......................................................................................................2−41
2.2.6.3.Fusing.........................................................................................................2−42
2.2.6.4.LSU............................................................................................................2−42
2.2.7.SoftwareDescriptions..................................................................................................2−43
2.2.7.1.Softwaresystemoverview..............................................................................2−43
2.2.7.2.Architecture.................................................................................................2−43
2.2.7.3.DataandControlFlow...................................................................................2−44
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.Replacingthemaintenanceparts.................................................................................................3−3
3.2.1.ITBUnit....................................................................................................................3−3
3.2.2.FuserUnit..................................................................................................................3−5
3.2.3.TransferRollerAssy....................................................................................................3−6
3.2.4.Pickup_Forward_Separationroller.................................................................................3−7
3.3.ReplacingthemainSVCparts....................................................................................................3−8
3.3.1.LeftandRightcover....................................................................................................3−8
3.3.2.HVPSboard...............................................................................................................3−9
3.3.3.OuterTemperatureSensor.............................................................................................3−9
3.3.4.MainBoard................................................................................................................3−10
3.3.5.SMPSFan..................................................................................................................3−10
3.3.6.SMPSboard...............................................................................................................3−11
3.3.7.ADForRADFUnit.....................................................................................................3−11
3.3.8.OPEUnit...................................................................................................................3−12
3.3.9.PlatenUnit.................................................................................................................3−13
3.3.10.MiddleCover.............................................................................................................3−14
3.3.11.LSU..........................................................................................................................3−15
3.3.12.FuserFan...................................................................................................................3−16
3.3.13.ExitUnit....................................................................................................................3−16
3.3.14.DRIVE-T1.................................................................................................................3−17
3.3.15.FuserDriveUnit.........................................................................................................3−18
3.3.16.PH(PaperHandling)DriveUnit.....................................................................................3−19
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