Samsung ProXpress 402 Series - Page 3

Contents
2.2.5.9.HVPSboard.................................................................................................2−34
2.2.6.EngineFirmwareControlAlgorithm...............................................................................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.PrecautionswhenhandlingPBA.....................................................................................3−1
3.1.3.ReleasingPlasticLatches..............................................................................................3−2
3.2.Screwsusedintheprinter..........................................................................................................3−3
3.3.ReplacingtheMainSVCparts...................................................................................................3−4
3.3.1.LeftandRightCover....................................................................................................3−4
3.3.2.FrontCover................................................................................................................3−5
3.3.3.RearandTopCover.....................................................................................................3−6
3.3.4.MainBoard................................................................................................................3−8
3.3.5.HVPSboard...............................................................................................................3−9
3.3.6.SMPSBoard...............................................................................................................3−10
3.3.7.LaserScanningUnit(LSU)...........................................................................................3−10
3.3.8.FuserUnit..................................................................................................................3−11
3.3.9.MainDriveUnit..........................................................................................................3−12
3.3.10.FeedDriveUnit..........................................................................................................3−13
3.3.11.PickUp_Regi_MPClutch.............................................................................................3−13
3.3.12.Pick-UpRoller............................................................................................................3−14
3.3.13.TransferRoller............................................................................................................3−15
3.3.14.OPEBoard.................................................................................................................3−15
3.3.15.MPUnit....................................................................................................................3−17
3.3.16.Bin-fullsensor............................................................................................................3−17
3.3.17.Regi_Feed_EmptySensor.............................................................................................3−18
3.3.18.ReverseRoller...........................................................................................................3−19
3.3.19.SCF(SecondCassetteFeeder)Unit.................................................................................3−20
3.3.19.1.SCFRightCover...........................................................................................3−20
3.3.19.2.SCFMainBoard...........................................................................................3−20
3.3.19.3.SCFMainMotor...........................................................................................3−21
3.3.19.4.SCFClutch..................................................................................................3−21
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