Samsung SCX-340x Series - Page 3

Contents
2.2.5.2.OPEboard...................................................................................................2−28
2.2.5.3.Faxboard....................................................................................................2−30
2.2.5.4.WirelessLANboard(wirelessmodelonly)........................................................2−30
2.2.5.5.SMPS/HVPSboard.......................................................................................2−31
2.2.5.6.ElectricalPartsLocation.................................................................................2−33
2.2.6.EngineF/WContolAlgorithm.......................................................................................2−35
2.2.6.1.Feeding.......................................................................................................2−35
2.2.6.2.Transfer.......................................................................................................2−35
2.2.6.3.Fusing.........................................................................................................2−36
2.2.6.4.LSU............................................................................................................2−36
2.2.7.SoftwareDescriptions..................................................................................................2−37
2.2.7.1.Softwaresystemoverview..............................................................................2−37
2.2.7.2.Architecture.................................................................................................2−37
2.2.7.3.DataandControlFlow...................................................................................2−38
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.RightandLeftcover....................................................................................................3−4
3.3.2.ScannerUnit...............................................................................................................3−5
3.3.3.ADFUnit...................................................................................................................3−6
3.3.4.CISUnit....................................................................................................................3−7
3.3.5.OPEUnit...................................................................................................................3−8
3.3.6.FrontCover................................................................................................................3−9
3.3.7.MiddleCover.............................................................................................................3−10
3.3.8.RearCover.................................................................................................................3−11
3.3.9.Mainboard.................................................................................................................3−11
3.3.10.WLANboard..............................................................................................................3−12
3.3.11.Faxboard...................................................................................................................3−12
3.3.12.SMPS/HVPSboard......................................................................................................3−13
3.3.13.FuserUnit..................................................................................................................3−14
3.3.14.DriveUnit..................................................................................................................3−14
3.3.15.LSU..........................................................................................................................3−15
3.3.16.FeedSensorPBA........................................................................................................3−16
3.3.17.Pickuproller..............................................................................................................3−16
3.3.18.Motor........................................................................................................................3−17
3.3.19.Transferroller.............................................................................................................3−18
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