Samsung SCX-472 series, SCX-4729FD, SCX-4729FW, SCX-4728HN, SCX-4701ND Service Manual

MonoLaserMFP

SCX-472xseries
SCX-4729FD/HD/FW,
SCX-4728FD/HN,SCX-4701ND,
SCX-4705ND,SCX-4726FN

SERVICE

MANUAL

MonoLaserMFP

Contents

1.Precautions

2.Productspecicationanddescription

3.DisassemblyandReassembly

4.AlignmentandTroubleshooting

5.SystemDiagram

6.ReferenceInformation

RefertotheservicemanualintheGSPN(seetherearcover)formoreinformation.

Contents

Contents

1.Precautions......................................................................................................................................1−1

1.1.Safetywarning........................................................................................................................1−1

1.2.Cautionforsafety....................................................................................................................1−2

1.2.1.Toxicmaterial.............................................................................................................1−2

1.2.2.Electricshockandresafetyprecautions.........................................................................1−2

1.2.3.Handlingprecautions...................................................................................................1−3

1.2.4.AssemblyandDisassemblyprecautions...........................................................................1−3

1.2.5.Disregardingthiswarningmaycausebodilyinjury............................................................1−4

1.3.ESDprecautions......................................................................................................................1−5

2.Productspecicationanddescription.....................................................................................................2−1

2.1.ProductSpecications..............................................................................................................2−1

2.1.1.ProductOverview........................................................................................................2−1

2.1.2.Specications.............................................................................................................2−2

2.1.2.1.GeneralPrintEngine......................................................................................2−2

2.1.2.2.Copierspecication.......................................................................................2−2

2.1.2.3.Scanspecication..........................................................................................2−3

2.1.2.4.Faxspecication...........................................................................................2−4

2.1.2.5.ControllerandSoftware..................................................................................2−5

2.1.2.6.PaperHandling.............................................................................................2−7

2.1.2.7.Consumables................................................................................................2−8

2.1.2.8.ReliabilityandService...................................................................................2−8

2.1.2.9.Environment................................................................................................2−8

2.1.2.10.Maintenanceparts.........................................................................................2−9

2.1.2.11.Options.......................................................................................................2−9

2.1.3.ModelComparisonTable..............................................................................................2−10

2.2.SystemOverview.....................................................................................................................2−11

2.2.1.FrontView.................................................................................................................2−11

2.2.2.RearView..................................................................................................................2−12

2.2.3.PaperPath..................................................................................................................2−13

2.2.4.SystemLayout............................................................................................................2−14

2.2.4.1.FeedingPart.................................................................................................2−15

2.2.4.2.TransferRoller.............................................................................................2−16

2.2.4.3.DriveUnit...................................................................................................2−16

2.2.4.4.Fuser..........................................................................................................2−17

2.2.4.5.LSU(LaserScannerUnit)...............................................................................2−18

2.2.4.6.TonerCartridge.............................................................................................2−19

2.2.5.Hardwareconguration................................................................................................2−20

2.2.5.1.Mainboard..................................................................................................2−21

iCopyright©1995-2012SAMSUNG.Allrightsreserved.

Contents

2.2.5.2.OPEboard...................................................................................................2−23

2.2.5.3.WirelessLANboard(SCX—4729FWonly).......................................................2−24

2.2.5.4.Faxboard....................................................................................................2−24

2.2.5.5.JointPBA....................................................................................................2−25

2.2.5.6.SMPSBoard................................................................................................2−26

2.2.5.7.HVPSBoard................................................................................................2−28

2.2.5.8.ElectricalPartsLocation.................................................................................2−29

2.2.6.EngineF/WControlAlgorithm......................................................................................2−31

2.2.6.1.Feeding.......................................................................................................2−31

2.2.6.2.Transfer.......................................................................................................2−31

2.2.6.3.Fusing.........................................................................................................2−32

2.2.6.4.LSU............................................................................................................2−32

2.2.7.SoftwareDescriptions..................................................................................................2−33

2.2.7.1.Softwaresystemoverview..............................................................................2−33

2.2.7.2.Architecture.................................................................................................2−33

2.2.7.3.DataandControlFlow...................................................................................2−34

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.Cover........................................................................................................................3−4

3.3.2.OPE..........................................................................................................................3−5

3.3.3.Scanner.....................................................................................................................3−6

3.3.4.ADF.........................................................................................................................3−7

3.3.5.ADFRoller................................................................................................................3−7

3.3.6.ADFMotor................................................................................................................3−8

3.3.7.ScanMotor................................................................................................................3−9

3.3.8.CISUnit....................................................................................................................3−10

3.3.9.MiddleCover.............................................................................................................3−11

3.3.10.FaxBoard..................................................................................................................3−12

3.3.11.Mainboard.................................................................................................................3−12

3.3.12.SMPSboard...............................................................................................................3−13

3.3.13.HVPSboard...............................................................................................................3−13

3.3.14.Bin-Fullsensor...........................................................................................................3−14

3.3.15.MainDriveUnit..........................................................................................................3−14

3.3.16.PickupandRegiClutch...............................................................................................3−15

3.3.17.PickupandForwardroller............................................................................................3−16

Copyright©1995-2012SAMSUNG.Allrightsreserved.ii

Contents

3.3.18.Retardroller...............................................................................................................3−17

3.3.19.Duplexunit................................................................................................................3−18

3.3.20.Transferroller.............................................................................................................3−19

3.3.21.LSU..........................................................................................................................3−19

3.3.22.Fuserunit...................................................................................................................3−20

3.3.23.ExitSensor.................................................................................................................3−20

3.3.24.FeedandRegisensor...................................................................................................3−21

3.3.25.Motor........................................................................................................................3−22

4.AlignmentandTroubleshooting...........................................................................................................4−1

4.1.AlignmentandAdjustments.......................................................................................................4−1

4.1.1.ControlPanel..............................................................................................................4−1

4.1.2.UnderstandingthestatusLED........................................................................................4−3

4.1.3.JAMRemoval.............................................................................................................4−4

4.1.3.1.Clearingoriginaldocumentjams......................................................................4−4

4.1.3.2.Clearingpaperjams.......................................................................................4−7

4.1.4.Usefulmenuitemforservice.........................................................................................4−11

4.1.5.Periodicdefectiveimage...............................................................................................4−13

4.1.6.Usefulmanagementtools..............................................................................................4−14

4.1.6.1.UsingSamsungEasyPrinterManager(Windows/Maconly)..................................4−14

4.1.6.2.UsingSamsungPrinterStatus(Windowsonly)...................................................4−16

4.1.6.3.UsingSmartPanel(Linuxonly).......................................................................4−17

4.1.7.UpdatingFirmware......................................................................................................4−18

4.1.7.1.UpdatethermwarebyusingtheUSBport........................................................4−18

4.1.7.2.Updatethermwarebyusingthenetwork..........................................................4−19

4.1.8.TechMode.................................................................................................................4−21

4.2.Troubleshooting......................................................................................................................4−26

4.2.1.Procedureofcheckingthesymptoms...............................................................................4−26

4.2.1.1.BasicCheckList...........................................................................................4−27

4.2.2.ErrorCodeandTroubleshooting.....................................................................................4−28

4.2.3.Imagequalityproblem..................................................................................................4−42

4.2.4.Othererrors................................................................................................................4−48

5.SystemDiagram................................................................................................................................5−1

5.1.BlockDiagram........................................................................................................................5−1

5.2.ConnectionDiagram.................................................................................................................5−2

6.ReferenceInformation........................................................................................................................6−1

6.1.ToolforTroubleshooting...........................................................................................................6−1

6.2.Glossary.................................................................................................................................6−2

6.3.TheSamplePatternfortheT est..................................................................................................6−8

6.4.Selectingalocation..................................................................................................................6−9

iiiCopyright©1995-2012SAMSUNG.Allrightsreserved.

1.Precautions

1.Precautions

Inordertopreventaccidentsanddamagestotheequipmentpleasereadtheprecautionslistedbelowcarefullybefore
servicingtheproductandfollowthemclosely .

1.1.Safetywarning

1)Onlytobeservicedbyafactorytrainedservicetechnician.

Highvoltagesandlasersinsidethisproductaredangerous.Thisproductshouldonlybeservicedbyafactorytrained
servicetechnician.

2)UseonlySamsungreplacementparts.

Therearenouserserviceablepartsinsidetheproduct.Donotmakeanyunauthorizedchangesoradditionstothe
productasthesecouldcausetheproducttomalfunctionsandcreateanelectricshocksorrehazards.

3)LaserSafetyStatement

TheprinteriscertiedintheU.S.toconformtotherequirementsofDHHS21CFR,chapter1SubchapterJfor
ClassI(1)laserproducts,andelsewhereiscertiedasaClassIlaserproductconformingtotherequirementsofIEC
60825-1.ClassIlaserproductsarenotconsideredtobehazardous.Thelasersystemandprinteraredesignedso
thereisneveranyhumanaccesstolaserradiationaboveaClassIlevelduringnormaloperation,usermaintenance
orprescribedservicecondition.

•Wavelength:800nm(788,–13/+12)

•Beamdivergence

-Paraller:12degrees(9,–2/+3)

-Perpendicular:35degrees(31,–6/+4)

•Maximumpowerofenergyoutput:15mW

WARNING

NeveroperateorservicetheproductwiththeprotectivecoverremovedfromLaser/Scannerassembly.Thereected
beam,althoughinvisible,candamageyoureyes.

Whenusingthisproduct,thesebasicsafetyprecautionsshouldalwaysbefollowedtoreduceriskofre,electricshock,
andpersonalinjury.

Copyright©1995-2012SAMSUNG.Allrightsreserved.1-1

1.Precautions

1.2.Cautionforsafety

1.2.1.Toxicmaterial

Thisproductcontainstoxicmaterialsthatcouldcauseillnessifingested.

1)Pleasekeepimagingunitandtonercartridgeawayfromchildren.Thetonerpowdercontainedintheimagingunitand
tonercartridgemaybeharmful,andifswallowed,youshouldcontactadoctor .

1.2.2.Electricshockandresafetyprecautions

Failuretofollowthefollowinginstructionscouldcauseelectricshockorpotentiallycauseare.

1)Useonlythecorrectvoltage,failuretodosocoulddamagetheproductandpotentiallycauseareorelectricshock.

2)Useonlythepowercablesuppliedwiththeproduct.Useofanincorrectlyspeciedcablecouldcausethecableto
overheatandpotentiallycauseare.

3)Donotoverloadthepowersocket,thiscouldleadtooverheatingofthecablesinsidethewallandcouldleadtoare.

4)Donotallowwaterorotherliquidstospillintotheproduct,thiscancauseelectricshock.Donotallowpaperclips,pins
orotherforeignobjectstofallintotheproduct,thesecouldcauseashortcircuitleadingtoanelectricshockorrehazard.

5)Nevertouchtheplugsoneitherendofthepowercablewithwethands,thiscancauseelectricshock.Whenservicing
theproduct,removethepowerplugfromthewallsocket.

6)Usecautionwheninsertingorremovingthepowercord.Whenremovingthepowercord,gripitrmlyandpull.The
powercordmustbeinsertedcompletely ,otherwiseapoorcontactcouldcauseoverheatingleadingtoare.

7)Takecareofthepowercable.Donotallowittobecometwisted,bentsharplyaroundcornersorwisedamaged.Donot
placeobjectsontopofthepowercable.Ifthepowercableisdamageditcouldoverheatandcauseare.Exposed
cablescouldcauseanelectricshock.Replacethedamagedpowercableimmediately ,donotreuseorrepairthedamaged
cable.Somechemicalscanattackthecoatingonthepowercable,weakeningthecoverorexposingcablescausing
reandshockrisks.

8)Ensurethatthepowersocketsandplugsarenotcrackedorbrokeninanyway.Anysuchdefectsshouldberepaired
immediately.T akecarenottocutordamagethepowercableorplugswhenmovingthemachine.

9)Usecautionduringthunderorlightningstorms.Samsungrecommendsthatthismachinebedisconnectedfromthe
powersourcewhensuchweatherconditionsareexpected.Donottouchthemachineorthepowercordifitisstill
connectedtothewallsocketintheseweatherconditions.

10)A voiddampordustyareas,installtheproductinacleanwellventilatedlocation.Donotpositionthemachineneara
humidierorinfrontofanairconditioner.Moistureanddustbuiltupinsidethemachinecanleadtooverheatingand
causeareorcausepartstorust.

11)Donotpositiontheproductindirectsunlight.Thiswillcausethetemperatureinsidetheproducttorisepossiblyleading
totheproductfailingtoworkproperlyandinextremeconditionscouldleadtoare.

12)Donotinsertanymetalobjectsintothemachinethroughtheventilatorfanorotherpartofthecasing,itcouldmake
contactwithahighvoltageconductorinsidethemachineandcauseanelectricshock.

13)

WhenreplacingtheSMPSboard,pleasewait5minutesafterunpluggingthepowercord,thenreplaceit.Y ou

cangetashockbytheelectricdischarge.

1-2Copyright©1995-2012SAMSUNG.Allrightsreserved.

1.Precautions

1.2.3.Handlingprecautions

Thefollowinginstructionsareforyourownpersonalsafetytoavoidinjuryandsoasnottodamagetheproduct.

1)Ensuretheproductisinstalledonalevelsurface,capableofsupportingitsweight.Failuretodosocouldcause
theproducttotiporfall.

2)Theproductcontainsmanyrollers,gearsandfans.T akegreatcaretoensurethatyoudonotcatchyourngers,hairor
clothinginanyoftheserotatingdevices.

3)Donotplaceanysmallmetalobjects,containersofwater,chemicalsorotherliquidsclosetotheproductwhichifspilled
couldgetintothemachineandcausedamageorashockorrehazard.

4)Donotinstallthemachineinareaswithhighdustormoisturelevels,besideonopenwindoworclosetoahumidieror
heater.Damagecouldbecausedtotheproductinsuchareas.

5)Donotplacecandles,burningcigarettes,etcontheproduct,Thesecouldcauseare.

1.2.4.AssemblyandDisassemblyprecautions

1)ReplacepartscarefullyandalwaysuseSamsungparts.Takecaretonotetheexactlocationofpartsandalsocable
routingbeforedismantlinganypartofthemachine.Ensureallpartsandcablesarereplacedcorrectly.Pleasecarryout
thefollowingproceduresbeforedismantlingtheproductorreplacinganyparts.

2)Ensurethatpowerisdisconnectedbeforeservicingorreplacinganyelectricalparts.

3)Disconnectinterfacecablesandpowercables.

4)Onlyuseapprovedspareparts.Ensurethatpartnumber,productname,anyvoltage,currentortemperaturerating
arecorrect.

5)Whenremovingorre-ttinganypartsdonotuseexcessiveforce,especiallywhenttingscrewsintoplastic.

6)Takecarenottodropanysmallpartsintothemachine.

7)HandlingoftheOPCDrum

•TheOPCDrumcanbeirreparablydamagedifitexposedtolight.TakecarenottoexposetheOPCDrumeither
todirectsunlightortouorescentorincandescentroomlighting.Exposureforaslittleas5minutescandamage
thesurfaceofthephotoconductivepropertiesandwillresultinprintqualitydegradation.Takeextracarewhen
servicingtheproduct.RemovetheOPCDrumandstoreitinablackbagorotherlightproofcontainer.Take
carewhenworkingwiththeCovers(especiallythetopcover)openaslightisadmittedtotheOPCareaandcan
damagetheOPCDrum.

•TakecarenottoscratchthegreensurfaceofOPCDrumUnit.IfthegreensurfaceoftheDrumCartridgeis
scratchedortouchedtheprintqualitywillbecompromised.

Copyright©1995-2012SAMSUNG.Allrightsreserved.1-3

1.Precautions

1.2.5.Disregardingthiswarningmaycausebodilyinjury

1)Becarefulwiththehightemperaturepart.

Thefuserunitworksatahightemperature.Usecautionwhenworkingontheprinter.W aitforthefuserunitto
cooldownbeforedisassembly.

2)Donotputngerorhairintotherotatingparts.

Whenoperatingaprinter,donotputhandorhairintotherotatingparts(Paperfeedingentrance,motor,fan,etc.).
Ifdo,youcangetharm.

3)Whenyoumovetheprinter,usesafeliftingandhandlingtechniques.

Thisprinterisheavy .Usetheliftinghandleslocatedoneachsideofthemachine.Backinjurycouldbecausedif
youdonotliftcarefully .

4)Ensuretheprinterisinstalledsafely .

Ensuretheprinterisinstalledonalevelsurface,capableofsupportingitsweight.Failuretodosocouldcausethe
printertotiporfallpossiblycausingpersonalinjuryordamagingtheprinter.

5)Donotinstalltheprinteronaslopingorunstablesurface.Afterinstallation,doublecheckthattheprinterisstable.

1-4Copyright©1995-2012SAMSUNG.Allrightsreserved.

1.Precautions

1.3.ESDprecautions

Certainsemiconductordevicescanbeeasilydamagedbystaticelectricity.Suchcomponentsarecommonlycalled
“ElectrostaticallySensitive(ES)Devices”orESDs.ExamplesoftypicalESDsare:integratedcircuits,someeldeffect
transistors,andsemiconductor“chip”components.Thetechniquesoutlinedbelowshouldbefollowedtohelpreducethe
incidenceofcomponentdamagecausedbystaticelectricity.

CAUTION

Besurenopowerisappliedtothechassisorcircuit,andobserveallothersafetyprecautions.

1)Immediatelybeforehandlingasemiconductorcomponentorsemiconductor-equippedassembly,drainoffany
electrostaticchargeonyourbodybytouchingaknownearthground.Alternatively ,employacommerciallyavailable
wriststrapdevice,whichshouldberemovedforyourpersonalsafetyreasonspriortoapplyingpowertotheunit
undertest.

2)AfterremovinganelectricalassemblyequippedwithESDs,placetheassemblyonaconductivesurface,suchas
aluminumorcopperfoil,orconductivefoam,topreventelectrostaticchargebuildupinthevicinityoftheassembly.

3)UseonlyagroundedtipsolderingirontosolderordesolderESDs.

4)Useonlyan“anti-static”solderremovaldevice.Somesolderremovaldevicesnotclassiedas“anti-static”can
generateelectricalchargessufcienttodamageESDs.

5)DonotuseFreon-propelledchemicals.Whensprayed,thesecangenerateelectricalchargessufcienttodamageESDs.

6)DonotremoveareplacementESDfromitsprotectivepackaginguntilimmediatelybeforeinstallingit.Most
replacementESDsarepackagedwithallleadsshortedtogetherbyconductivefoam,aluminumfoil,oracomparable
conductivematerial.

7)ImmediatelybeforeremovingtheprotectiveshortingmaterialfromtheleadsofareplacementESD,touchtheprotective
materialtothechassisorcircuitassemblyintowhichthedevicewillbeinstalled.

8)MaintaincontinuouselectricalcontactbetweentheESDandtheassemblyintowhichitwillbeinstalled,until
completelypluggedorsolderedintothecircuit.

9)MinimizebodilymotionswhenhandlingunpackagedreplacementESDs.Normalmotions,suchasthebrushingtogether
ofclothingfabricandliftingone’sfootfromacarpetedoor,cangeneratestaticelectricitysufcienttodamageanESD.

Copyright©1995-2012SAMSUNG.Allrightsreserved.1-5

2.Productspecicationanddescription

2.Productspecicationanddescription

2.1.ProductSpecications

2.1.1.ProductOverview

1)Speed

•Upto28ppminA4(29ppminLetter)

2)PrintingResolution

•Upto1,200x600dpieffectiveoutput

3)Processor

•533MHz

4)PrinterLanguageEmulation

•PCL6/5e,SPL

5)Memory

•128MB

6)Interface

•HighspeedUSB2.0

•10/100BaseTXnetworkconnector

•802.11b/g/nwirelessLAN(SCX-4729FW)

7)Tonercartridge

•Initial:1K

•Sales:1.5K/2.5Ktwotypes

2-1Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.1.2.Specications

•ProductSpecicationsaresubjecttochangewithoutnotice.

2.1.2.1.GeneralPrintEngine

ItemSpecication

Simplex

•SCX-4728/4729seires

•Upto28ppminA4(29ppminLetter)

•SCX-4726series

•Upto26ppminA4(27ppminLetter)

EngineSpeed

Duplex

•SCX-4728/4729seires

•Upto13ppminA4(13ppminLetter)

•SCX-4726series:Notsupport

WarmuptimeFromSleepLessthan15seconds

FromReadyLessthan8.5seconds

FPOT

FromSleepLessthan15seconds

ResolutionUpto1,200x600dpieffectiveoutput

2.1.2.2.Copierspecication

ItemSpecication

CopySpeedSimplextoSimplexupto20cpminA4

FCOT(B&W)FromReadyLessthan15seconds(fromplaten)

Text

•Scan:600x600dpi(Optical600x300dpi)@ADF,Printing:

600x600dpi

•Scan:600x600dpi(Optical600x600dpi)@Platen,Printing:

600x600dpi

Text/Photo

•Scan:600x600dpi(Optical600x300dpi)@ADF,Printing:

600x600dpi

•Scan:600x600dpi(Optical600x600dpi)@Platen,Printing:

600x600dpi

CopyResolution

Photo

•Scan:600x600dpi(Optical300x300dpi)@ADF,Printing:

600x600dpi

•Scan:1,200x1,200dpi(Optical600x600dpi)@Platen,Printing

:1,200x1,200dpi

OriginalTypeFactoryDefaultText/Photo

PlatenA4

Max.Original

Size

ADFLegal(8.5"x14")

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-2

2.Productspecicationanddescription

ItemSpecication

MultiCopy1~99

AutomaticPaperSelectionNo

ManualPaperSelectionYes

DuplexCopyYes

DarknessControl11Levels

BasicCopy

Reduce&Enlarge

•25%to400%forPlaten

•25%to100%forADF

2.1.2.3.Scanspecication

ItemSpecication

ScanmethodColorCIS

CompatibilityTWAIN,WIA

ColorModeMono/Gray/Color

Lineart,Halftone(mono)20ipm@300dpi

Gray(mono)20ipm@300dpi

ScanSpeed

Color6ipm@300dpi

Optical1200x1200dpi

Resolution

Enhanced4,800dpix4,800dpi

Halftone256levels

Max.DocumentWidthMax.216mm(8.5")

EffectiveScanWidthMax.208mm(8.2")

Max.DocumentLength

•ADF:356mm(14")

•Platen:297mm(11.7")

ScanSize

EffectiveScanLength

•ADF:348mm(13.7")

•Platen:289mm(11.4")

Color24bits

ScanDepth

Mono

•1bitforLineart&Halftone

•8BitsforGrayscale

Capacity40sheets@80gsm

ADF

DocumentSize

•Width:142~216mm

•Length:148~356mm

2-3Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.1.2.4.Faxspecication

ItemSpecication

CompatibilityITU-TG3,ECM

CommunicationSystemPSTN/PABX

ModemSpeed33.6Kbps

TXSpeedApprox.3sec(Mono/Standard/ECM-MMR,@ITU-TG3No.1)

CompressionMH/MR/MMR/JBIG/JPEG

ColorFaxYes(Txonly)

ECMYes

Std203x98dpi

Fine203x196dpi

Resolution

(Mono)

S.Fine300x300dpi

HandsetYes(ChinaOnly)

OnhookDialYes

SearchYes(PhoneBook)

SpeedDial200locations

GroupDialGroupDial

TADI/FYes

Tone/PulseY es(SelectableinTechMode)

PauseY es

AutoRedialYes

LastNumberRedialYes

CallerIDNo

Telephone

Features

ExternalPhoneInterfaceYes

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-4

2.Productspecicationanddescription

2.1.2.5.ControllerandSoftware

ItemSpecication

Processor533MHz

Std.128MB

Memory

Max.128MB

PrinterLanguagesPCL6/5e,SPL

FontsWindowsFonts

DefaultDriver

•Windows/Mac/Linux:SPL

•Unix:PLC6

Install

•Windows:SPL,PCL6

•Mac/Linux:SPL

•Unix:PCL6

Windows2000/XP(32/64bits)/Vista(32/64bits)/2003
Server(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008
ServerR2(64bits)

Linux

•RedHatEnterpriseLinuxWS4,5(32/64bit)

•Fedora5,6,7,8,9,10,11,12,13(32/64bit)

•SuSELinux10.1(32bit)

•OpenSuSE10.2,10.3,11.0,11.1,11.2(32/64bit)

•Mandriva2007,2008,2009,2009.1,2010(32/64bit)

•Ubuntu6.06,6.10,7.04,7.10,8.04,8.10,9.04,9.10,

10.04(32/64bit)

•SuSELinuxEnterpriseDesktop10,11(32/64bit)

•Debian4.0,5.0(32/64bit)

MacOSX10.4~10.6

SupportingOS

UNIX

•SunSolaris9,10(x86,SP ARC)

•HP-UX11.0,11iv1,11iv2,11iv3(P A-RISC,Itanium)

•IBMAIX5.1,5.2,5.3,5.4

WHQL

Windows2000/XP(32/64bits)/Vista(32/64bits)/2003
Server(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008
ServerR2(64bits)

PrintDriver

Compatibility

Win2000/XP(32/64bits)/2003Server(32/64bits)/
Vista(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008
ServerR2(64bits)

TWAINYes

WIAYes

ICDMYes

Windows2000/XP(32/64bits)/Vista(32/64bits)/2003
Server(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008
ServerR2(64bits)

ScanDriver

SupportingOS

2-5Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

ItemSpecication

Linux

•RedHatEnterpriseLinuxWS4,5(32/64bit)

•Fedora5,6,7,8,9,10,11,12,13(32/64bit)

•SuSELinux10.1(32bit)

•OpenSuSE10.2,10.3,11.0,11.1,11.2(32/64bit)

•Mandriva2007,2008,2009,2009.1,2010(32/64bit)

•Ubuntu6.06,6.10,7.04,7.10,8.04,8.10,9.04,9.10,

10.04(32/64bit)

•SuSELinuxEnterpriseDesktop10,11(32/64bit)

•Debian4.0,5.0(32/64bit)

MacOSX10.4~10.6

Protocol

•[TCP/IP]

TCP/IPv4/IPv6,HTTP ,SNMPv1/v2c/v3,IPSec,
DNS/WINS,DDNS,DHCP ,BOOTP ,AutoIP ,Standard
TCP/IPprinting,LPR,IPP ,UPnP(SSDP),Bonjour,
Telnet,WSD,SLP ,SetIP

WiredNetwork

SupportingOS

[Windows]

•MicrosoftWindows2000/XP(32/64bits)/

2003(32/64bits)/Vista(32/64bits)/2008(32/64bit)/
7(32/64bit)

[Mac]

•MacOS10.4~10.6

[Linux]

•RedHatEnterpriseLinuxWS4,5(32/64bit)

•Fedora5,6,7,8,9,10,11,12,13(32/64bit)

•SuSELinux10.1(32bit)

•OpenSuSE10.2,10.3,11.0,11.1,11.2(32/64bit)

•Mandriva2007,2008,2009,2009.1,2010(32/64bit)

•Ubuntu6.06,6.10,7.04,7.10,8.04,8.10,9.04,9.10,

10.04(32/64bit)

•SuSELinuxEnterpriseDesktop10,11(32/64bit)

•Debian4.0,5.0(32/64bit)

Protocol802.11b/g/n

WirelessNetwork

(SCX–4729FWonly)

SupportingOSSameaswirednetwork

Application

SamsungEasyPrinter
Manager

SmartPanel

NetworkManagement

ForWindowsandMacintosh

ForLinux

SyncThruWebService2.0

ParallelN/A

Interface

USBHighspeedUSB2.0

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-6

2.Productspecicationanddescription

2.1.2.6.PaperHandling

ItemSpecication

StandardCapacity250-sheetCassette@80g/m²,1-sheetMultiPurposeTray

Max.Capacity251-sheet

Max.Size216x356mm(8.5"x14")

Printing

Min.Size76x127mm(3.0"x5.0")

Capacity250-sheetCassette@80g/m²

MediasizesA4,A5,ISOB5,JISB5,Executive,Letter,Ocio,Folio,Legal

MediatypesPlain,Thin,Recycled,Thick,Archive

Mediaweight16~43lb(60to163g/m²)

Standard

CassetteTray

SensingYes

Capacity

•PlainPaper:1sheet

•Envelop:1sheet

Mediasizes

A4,A5,A6,EXEC,ISOB5,JISB5,Letter,Ocio,Folio,Legal,Envelope(No10,
Monarch,DL,C5,C6)Postcard4x6,Custom

Mediatype

Plain,Thick,Thin,Cotton,Colored,Pre-printed,Recycled,Envelope,Transparency ,
Label,Cardstock,Bond,Archive

Mediaweight16~58lb(60to220g/m²)

Multi-purpose

tray

SensingYes

OptionalCassetteTrayN/A

OutputStackingCapacity

•Face-Down:120sheets@80g/m²

•Face-Up:1sheet

OutputFullsensingYes

Supporting

•SCX-4728/4729series:Y es

•SCX-4726FN:Notsupport

MediasizesA4,Letter,Ocio,Folio,Legal

MediatypesPlain,thin,thick,bond,recycled

Duplex

Mediaweight16~32lb(60to120g/m²)

PrintableArea

Non-Printable

Area

•Envelop:10mm(0.4")fromedge(T op,Bottom,Left,Right)

•OtherMedia:4mm(0.16")fromedge(Top,Bottom,Left,Right)

2-7Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.1.2.7.Consumables

TypeAverageyieldPartname

StandardyieldtonercartridgeApprox.1,500pages•MLT-D103S

HighyieldtonercartridgeApprox.2,500pages•MLT-D103L

NOTE

•DeclaredyieldvalueinaccordancewithISO/IEC19752.

•Dependingontheoptionsandjobmodeused,thetonercartridge’slifespanmaydiffer.

2.1.2.8.ReliabilityandService

ItemSpecication

PrintingV olume(SETAMPV)175pages

Max.MonthlyDuty

12,000pages

MPBF30,000pages

MTTR30min.

SETLifeCycle100,000pagesor5years(whichevercomesrst)

2.1.2.9.Environment

ItemSpecication

Temperature10Cto32C

OperatingEnvironment

Humidity20%to80%

PrintingLessthan50dB

StandbyLessthan30dB

AcousticNoiseLevel(Sound
Power/Pressure)

SleepBackGroundLevel

ReadyLessthan60W

A VG.Lessthan360W

Max/PeakLessthan400W

PowerConsumption

Sleep/PowerOffLessthan6.5W/Lessthan0.8W(ConformitytoEPA)

Dimension(WxDxH)SET406x338x383mm(16x13.3x15.1inches)

WeightSET(WithTonercartridge)10.9kg(24lbs)

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-8

2.Productspecicationanddescription

2.1.2.10.Maintenanceparts

ItemImagePartCodeLife

Fuser

•220V

•JC91–01034A

•110V

•JC91–01034B

100,000pages

TransferRollerJC66-01218A100,000pages

Pick-Up/Forward
RollerAssy

JC93–00405A50,000pages

RetardRollerJC90–01107A50,000pages

2.1.2.11.Options

ItemSpecication

MemoryN/A

SecondCassetteN/A

HardDiskN/A

2-9Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.1.3.ModelComparisonTable

Samsung

SCX-4729FW

Samsung

SCX-4824FN

HP

M1536DNF

Image

Speed(A4)28ppm24ppm25ppm

FPOT

(fromready)

lessthan8.5seclessthan9seclessthan7sec

Processor533MHz360MHz400MHz

Memory128MB128MB32MB

EmulationGDI,PCL6GDI,PCL6GDI,PCL6,PS3

Input250CST ,1MP250CST,1MP250Bin,10MP

Output120sheet100sheet100sheet

Paper

Capacity

ADF40sheet30sheet35sheet

Duplex(Auto)Y esYesYes

Noise50dBA49dBA51dBA

TonerCartridge1.5/2.5K(1K)2/5K(2K)2.1K(1K)

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-10

2.Productspecicationanddescription

2.2.SystemOverview

Thischapterdescribesthefunctionsandoperatingprincipalofthemaincomponent.

2.2.1.FrontView

NOTE

•Thisillustrationmaydifferfromyourmachinedependingonitsmodel.

•Somefeaturesandoptionalgoodsmaynotbeavailabledependingonmodelorcountry.

1Documentfeedercover

2Documentfeederguidecover

3Documentfeederoutputtray

4ControlPanel

5Paperlevelindicator

6Tray

7Manualfeedertray

8Frontcover

9Outputtray

10Outputsupport

11Paperwidthguideonamanualfeedertray

12Scannerlid

13Scannerglass

14Documentfeederinputtray

15PaperwidthguideonaDocumentfeeder

16Documentfeederoutputsupport

17Handset(SCX-4729HD,4728HNonly)

2-11Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.2.2.RearView

NOTE

•Thisillustrationmaydifferfromyourmachinedependingonitsmodel.

•Somefeaturesandoptionalgoodsmaynotbeavailabledependingonmodelorcountry.

1Networkport

2Telephonelinesocket(Line)

3Extensiontelephonesocket(EXT)

4USBport

5Power-switch

6Powerreceptacle

7Rearcover

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-12

2.Productspecicationanddescription

2.2.3.PaperPath

Thefollowingdiagramdisplaysthepaththepaperfollowsduringtheprintingprocess.

[ADF]

[Engine]

S imp le x Pa th Du p le x Pa th MP P a th

2-13Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.2.4.SystemLayout

ThismodelconsistsoftheScannerparts,Engineparts,HardwareandFirmware.ThescannerpartsconsistsofADFand
platen.TheenginepartsconsistsofthemechanicalpartscomprisingFrame,Duplex,T onercartridge,Driveunit,Transfer
roller,Fuser,Cassette.TheHardwarepartconsistsofthemaincontrolboard,powerboard,operationpanel,PCInterface.

[11]

[10]

[9]

[8]

[4 ]

[3]

[1]

[2]

[5]

[6]

[7 ]

1ADF

2Scanner(Platen)

3LSU

4Tonercartridge

5MP

6Pick-UpRoller

7Regi.Roller

8Cassette

9Duplex

10Fuser

11ExitRoller

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-14

2.Productspecicationanddescription

2.2.4.1.FeedingPart

Itconsistsofacassette,anMPtrayforsupplyingdifferenttypesofmedia(envelope,label,specialpaper)andparts
relatedtopaperfeedinitialization.

1)Cassette

Thecassettestoresthepaper(Capacity:250sheets(80g/m²paperstandard).Boththesideguideandtherearguidecanbe
adjustedforvarioustypesofpapersfromA6tolegalsizepaper.Ithasapaperdetectingfunction,andadjustablepaper
guidestomakeitatrulyuniversalcassette.

2)Pick-Up/Forward/Retardroller

Whenpickuptakesplace,thepickuprollermovesdowntocomeintocontactwiththesurfaceofthepaper.Thepickuproller
movesdownwhenthepickupclutchisactivated.Theforwardrollerandtheretardrollerservetomakesurethatasinglesheet
ofpaperismovedintothepaperpath,andthepaperismovedasfarastheregistrationrollerbythemeansofthefeedroller.

A

C

B

A : Forward roller

B : R e tard roller
C : P ick u p roller

3)Registrationroller

Itisusedasanantiskewdevice,andtosetupproperregistrationtimingwiththatofthetonedimageonthedrum.Italsois
usedforjamdetectiontoensurepaperhasleftthepapertray .

4)MP(Multi-Purpose)Tray

Themulti-purposetraycanholdspecialsizesandtypesofprintmaterial,suchaspostcards,notecards,andenvelopes.

2-15Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.2.4.2.TransferRoller

ThetransferrollerdeliversthetoneroftheOPCdrumtothepaper.

•LifeSpan:Printover100,000sheets(in15~30℃)

2.2.4.3.DriveUnit

Inthismodel,thedrivingdeviceconsistsofBLDCmotor,Regi./Pickupclutches,variousgearsforOPC,Fuser,Pick­up,Feed,Regi,Exit.

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-16

2.Productspecicationanddescription

2.2.4.4.Fuser

ThisunitconsistsofHeatRoller,aThermostat,andThermistor,etc.Itfusesthetonerthatwastransferredbythetransfer
rollerontothepaper,byapplyingheatandpressuretocompletefusingprocess.

1)Thermostat

Whenaheatlampisoverheated,aThermostatcutsoffthemainpowertopreventover-heating.

•ThermostatT ype:Non-ContacttypeThermostat

•ControlT emperature:170℃±5℃

2)Thermistor

Itisatemperaturedetectingsensor.

•TemperatureResistance:7KΩ(180℃)

3)Heatroller

Theheatrollertransferstheheatfromthelamptoapplyaheatonthepaper.

ThesurfaceofaheatrolleriscoatedwithTeon,sotonerdoesnotsticktothesurface.

4)Pressureroller

Apressurerollermountedunderaheatrollerismadeofasiliconresin,andthesurfacealsoiscoatedwithTeon.Whena
paperpassesbetweenaheatrollerandapressureroller,toneradherestothesurfaceofapaperandispermanentlyfused.

5)HalogenLamp

•V oltage:120V(115±5%)/220V:230±5%

•Capacity:850W att±25W

6)Itemsforsafety

Protectingdeviceforoverheating

•1stprotectiondevice:Hardwarecutsoffwhenoverheated

•2ndprotectiondevice:Softwarecutsoffwhenoverheated

•3rdprotectiondevice:Thermostatcutsoffmainpower .

Safetydevice

•Afuserpoweriscutoffwhenafrontcoverisopened

•Maintainatemperatureoffusercover’ssurfaceunder80℃foruser,andattachacautionlabelatwherecustomer

canseeeasilywhencustomeropenarearcover.

2-17Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.2.4.5.LSU(LaserScannerUnit)

ItisthecorepartoftheLBPwhichswitchesfromthevideodatareceivedtothecontrollertotheelectrostaticlatentimage
ontheOPCdrumbycontrollinglaserbeam,exposingOPCdrum,andturningprincipleofpolygonmirror.TheOPCdrumis
turnedwiththepaperfeedingspeed.TheHSYNCsignaliscreatedwhenthelaserbeamfromLSUreachestheendofthe
polygonmirror,andthesignalissenttothecontroller .ThecontrollerdetectstheHSYNCsignaltoadjusttheverticallineof
theimageonpaper.Inotherwords,aftertheHSYNCsignalisdetected,theimagedataissenttotheLSUtoadjusttheleft
marginonpaper.Theonesideofthepolygonmirrorisonelineforscanning.

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-18

2.Productspecicationanddescription

2.2.4.6.TonerCartridge

Byusingtheelectronicphotoprocess,itcreatesavisualimage.Inthetonercartridge,theOPCunitandthedeveloping
unitareinabody.TheOPCunithasOPCdrumandchargingroller,andthedevelopingunithastoner,supplyroller,
developingroller,andblade.

•DevelopingMethod:Nonmagnetic1elementcontactingmethod

•T oner:Nonmagnetic1elementshattertypetoner

•Thelifespanoftoner(ISO19752pattern/A4standard)

-Initialtoner:1K

-Salestoner:1.5K/2.5K

•OPCCleaning:Collectthetonerbyusingcleaningblade

•Handlingofwastedtoner:Collectthewastedtonerinthecleaningframebyusingcleaningblade

•Classifyingdevicefortonercartridge:IDisclassiedbyCRUM.

1OPCDrum5SupplyRoller

2ChargingRoller6WasteT onerTank

3Agitator7CleaningBlade

4DevelopingRoller

2-19Copyright©1995-2012SAMSUNG.Allrightsreserved.

2.Productspecicationanddescription

2.2.5.Hardwareconguration

TheSCX-4729seriesElectricalCircuitSystemconsistsofthefollowing:

•Mainboard(Systemboard)

•OPEboard

•SMPSboard

•HVPSboard

•Faxboard

DiagramoftheSCX-4729seriesElectricalCircuit

DDR 3

16b it(O n d ie)

128 MB

Kin gb ird SMPS (NEW)

PO WER

CO RD

EE PR OM

SC X-472 9FD/FW

:6 4KB

S er ial Nor

: 20 MB

(16 MB + 4MB)

DC-DC Co nve rte r

SN1 001043 : 1.2V/1.5V/3.3V

MII

(AC20 1A1)

En gi ne

SP I

DDR

Co n tro l

I2C

MAC UART

C3 -Ne x t

VIDEO CO NTROL

PW M CL OCK USB 2.0

DEVE K UNIT

CR UM

HVPS : EP & THV High Volta ge o utput

Co ve r ope n de te c t

Bin full/ R e gi/ fe e d/ P _e mp ty s en so r

Cr um IF / Pic ku p & re gi c lut c h

RES ET

LSU

Vide o

IF

ABC Ch ip

(SW3 304 B)

I2C

Moto r – S te p(A498 4)

- Sc an , ADF (2)

Fa n (1)

-. MAIN,

-. Main : P _Ex it Se ns or

FDC 64 2

24VS

TR(x 2)

Sys tem Bo a rd

WLAN IF

W-mod e l only

FUS ER UNIT

Co nt ac t

Th erm ist or

850 W lam p Th erm os ta t

Moto r IC-Le s s (2)

-BLDC MAIN (1)

- LSU P-Mot or (1 )

5V

CR UM IF

SD IO

FET(x 2)

5V_SMPS

24V_S MP S

Micro S/W

(h vps )

3_3 V_ C_OP EN1

CIS IF

LAFE 1001

MODEM IF

- Local bus (A 7 bit, D 8b it)

RTC

CR2 032(T. B.D)

CIS LED Drive r(AK786 4)

Se ns or (4)

-. ADF Cov er , AD F_P _DET,
ADF_P _P OS, Sc an hom e

Moto r Ste p(2)

-SC AN, ADF

Sp ea ke r

MODEM IF

-. Co ne xant

UI

2-Line LC D OPE

LSU Vide o

-. Du al b ea m

SP I

US B2 .0 Dev ic e

UART

Em be dd ed US B

GP IO or UART

CIS Mod ule

SCX-4729serieshasasystemboardofintegratedenginecontrollerandvideocontroller.

Theenginecontrollercontrolsallmodulesrequiredtoprint,thatis,LSU,HVPS,SMPS,F AN,Fuser,etc.

ItcommunicateswiththevideocontrolblockinsideCPUforprinting.Andithastheinterfaceforallvideosyncsignal
toprintoutthevideodata.

ThevideocontrollerreceivesprintdatafromthehostthroughnetworkorUSBPort.Ittakesthisinformationandgenerates
printablevideobitmapdata.

Themainboardadoptsthe533MHzCPU,onboardDDR2memory(128MB)toperformprintingjobssuccessfully .

Copyright©1995-2012SAMSUNG.Allrightsreserved.2-20

2.Productspecicationanddescription

2.2.5.1.Mainboard

Chorus3–Next(C3N)chipisadoptedasthemainprocessor.Itsprocessspeedis533MHz.Itisintegratedenginecontroller,
videocontroller,scancontroller.

DDR2128MBisadoptedforhighspeeddataprocessing.Boothas16MBSPI+4MBSPI.

USBistheembeddedtypeandwirednetworksupports100Mfullduplex.

[Mainboarddiagram]

Main P ro c e s s or

Ch o r u s 3-Ne xt

533 MHz

DDR3

128 MB(6 4 Mx1 6 bit)

Loc a l Bus

US B_D P /DM.

FAX PBA

S PI # 1

16MB

S e r ia l No r

4MB

S e r ia l No r

S PI # 2

S PI # 3

WLAN

P BA

10 0B a s e d TX

OP E PBA

UAR T

EE P ROM

(64KB)

I2C

S CAN

S ca n Bus

2-21Copyright©1995-2012SAMSUNG.Allrightsreserved.