Contents
2.2.5.1.Mainboard..................................................................................................2−24
2.2.5.2.OPEboard...................................................................................................2−26
2.2.5.3.WirelessLANboard......................................................................................2−27
2.2.5.4.JointPBA....................................................................................................2−27
2.2.5.5.SMPSBoard................................................................................................2−28
2.2.5.6.HVPSBoard................................................................................................2−30
2.2.5.7.Faxboard....................................................................................................2−31
2.2.5.8.NFCTagSticker...........................................................................................2−32
2.2.5.9.ElectricalPartsLocation.................................................................................2−33
2.2.6.EngineF/WControlAlgorithm......................................................................................2−36
2.2.6.1.Feeding.......................................................................................................2−36
2.2.6.2.Transfer.......................................................................................................2−36
2.2.6.3.Fusing.........................................................................................................2−37
2.2.6.4.LSU............................................................................................................2−37
2.2.7.SoftwareDescriptions..................................................................................................2−38
2.2.7.1.Softwaresystemoverview..............................................................................2−38
2.2.7.2.Architecture.................................................................................................2−38
2.2.7.3.DataandControlFlow...................................................................................2−39
3.DisassemblyandReassembly..............................................................................................................3−1
3.1.Precautionswhenreplacingparts................................................................................................3−1
3.1.1.Precautionswhenassemblinganddisassembling...............................................................3−1
3.1.2.PreautionswhenhandlingPBA......................................................................................3−1
3.1.3.ReleasingPlasticLatches..............................................................................................3−2
3.2.Screwsusedintheprinter..........................................................................................................3−3
3.3.ReplacingtheMainSVCparts...................................................................................................3−4
3.3.1.SideCover.................................................................................................................3−4
3.3.2.RearCover.................................................................................................................3−5
3.3.3.FrontCover................................................................................................................3−6
3.3.4.ScanUnit...................................................................................................................3−7
3.3.5.OPE..........................................................................................................................3−8
3.3.6.ADF.........................................................................................................................3−9
3.3.7.ADFRoller................................................................................................................3−9
3.3.8.ADFMotor................................................................................................................3−10
3.3.9.ScanMotor................................................................................................................3−11
3.3.10.CISUnit....................................................................................................................3−12
3.3.11.FaxBoard..................................................................................................................3−12
3.3.12.MiddleCover.............................................................................................................3−13
3.3.13.MainBoard................................................................................................................3−14
3.3.14.SMPS........................................................................................................................3−14
3.3.15.HVPS........................................................................................................................3−15
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