Samsung ML-3750ND Service Manual

MonoLaserPrinter

ML-3750ND

MANUAL

SERVICE

MonoLaserPrinter

1.Precautions

2.ProductSpecications

3.DisassemblyandReassembly

4.AlignmentandTroubleshooting

5.SystemDiagram

6.ReferenceInformation

Contents

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cations........................................................................................................................2−1

2.1.Specications..........................................................................................................................2−1

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

2.1.2.Specications.............................................................................................................2−1

2.1.2.1.GeneralPrintEngine......................................................................................2−1

2.1.2.2.ControllerandSoftware..................................................................................2−2

2.1.2.3.PaperHandling.............................................................................................2−4

2.1.2.4.Consumables................................................................................................2−5

2.1.2.5.ReliabilityandService...................................................................................2−5

2.1.2.6.Maintenancepart...........................................................................................2−5

2.1.2.7.Environment................................................................................................2−5

2.1.3.ModelComparisonTable..............................................................................................2−7

2.2.ProductDescription..................................................................................................................2−8

2.2.1.FrontView.................................................................................................................2−8

2.2.2.RearView..................................................................................................................2−9

2.2.3.PaperPath..................................................................................................................2−10

2.2.4.Systemlayout.............................................................................................................2−11

2.2.4.1.FeedingPart.................................................................................................2−12

2.2.4.2.Tonercartridge.............................................................................................2−14

2.2.4.3.Fuserunit....................................................................................................2−16

2.2.4.4.LSU(LaserScanningUnit).............................................................................2−17

2.2.5.HardwareConguration................................................................................................2−18

2.2.5.1.Mainboard..................................................................................................2−19

2.2.5.2.OPEboard...................................................................................................2−21

2.2.5.3.DIMMPBA-Optional...................................................................................2−22

2.2.5.4.SCFboard-Optional.....................................................................................2−22

2.2.5.5.SMPSboard.................................................................................................2−23

2.2.5.6.HVPSboard.................................................................................................2−24

2.2.6.EngineF/WControlAlgorithm......................................................................................2−25

iCopyright©1995-2011SAMSUNG.Allrightsreserved.

Contents

2.2.6.1.Feeding.......................................................................................................2−25

2.2.6.2.Transfer.......................................................................................................2−25

2.2.6.3.Fusing.........................................................................................................2−26

2.2.6.4.LSU............................................................................................................2−26

2.2.7.SoftwareDescriptions..................................................................................................2−27

2.2.7.1.Softwaresystemoverview..............................................................................2−27

2.2.7.2.Architecture.................................................................................................2−27

2.2.7.3.DataandControlFlow...................................................................................2−28

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.Mainboard.................................................................................................................3−6

3.3.3.HVPSboard...............................................................................................................3−6

3.3.4.SMPSboard...............................................................................................................3−7

3.3.5.LaserScanningUnit(LSU)...........................................................................................3−7

3.3.6.Fuserunit...................................................................................................................3−8

3.3.7.MainDriveunit...........................................................................................................3−9

3.3.8.Feeddriveunit............................................................................................................3−10

3.3.9.Pickup/Regi./MPClutch.............................................................................................3−11

3.3.10.Pickuproller..............................................................................................................3−11

3.3.11.TransferRoller............................................................................................................3−12

3.3.12.MPunit.....................................................................................................................3−12

3.3.13.OPEboard.................................................................................................................3−13

3.3.14.Bin-fullsensor............................................................................................................3−13

3.3.15.Regi_Feed_Emptysensor..............................................................................................3−14

3.3.16.Cassetteroller(Retardroller).........................................................................................3−15

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

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

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

4.1.2.UnderstandingTheStatusLED......................................................................................4−2

4.1.3.Clearingpaperjams.....................................................................................................4−3

4.1.4.Usefulmenuitemforservice.........................................................................................4−7

4.1.5.PeriodicDefectiveImage..............................................................................................4−9

4.1.6.Usefulmanagementtools..............................................................................................4−10

4.1.6.1.UsingSamsungEasyPrinterManager(Windowsonly)........................................4−10

Copyright©1995-2011SAMSUNG.Allrightsreserved.ii

Contents

4.1.6.2.UsingSamsungPrinterStatus(Windowsonly)...................................................4−12

4.1.6.3.UsingSmartPanel(MacintoshandLinuxonly)..................................................4−13

4.1.6.4.UsingSyncThruWebService(SWS)................................................................4−14

4.1.7.UpdatingFirmware......................................................................................................4−16

4.1.7.1.UpdatethermwarebyusingtheUSBport........................................................4−16

4.1.7.2.Updatethermwarebyusingthenetwork..........................................................4−17

4.1.8.TechMode.................................................................................................................4−19

4.2.Troubleshooting......................................................................................................................4−22

4.2.1.Procedureofcheckingthesymptoms...............................................................................4−22

4.2.1.1.BasicCheckList...........................................................................................4−23

4.2.2.ErrorCodeandTroubleshooting.....................................................................................4−24

4.2.3.Imagequalityproblem..................................................................................................4−36

4.2.4.Othererrors................................................................................................................4−42

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.TheSamplePatternfortheTest..................................................................................................6−8

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

iiiCopyright©1995-2011SAMSUNG.Allrightsreserved.

1.Precautions

Inordertopreventaccidentsandtopreventdamagetotheequipmentpleasereadtheprecautionslistedbelowcarefully
beforeservicingtheprinterandfollowthemclosely .

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.

1.Precautions

•Wavelength:800nm

•Beamdivergence

-Paraller:12degrees

-Perpendicular:35degrees

•Maximumpowerofenergyoutput:15mW

WARNING

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

Whenusingthisproduct,thesebasicsafetyprecautionsshouldalwaysbefollowedtoreduceriskofre,electricshock,
andpersonalinjury .

Copyright©1995-2011SAMSUNG.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,bentsharplyaroundcornersorpowercablemaybe
damaged.Donotplaceobjectsontopofthepowercable.Ifthepowercableisdamageditcouldoverheatandcausea
re.Exposedcablescouldcauseanelectricshock.Replacethedamagedpowercableimmediately,donotreuseor
repairthedamagedcable.Somechemicalscanattackthecoatingonthepowercable,weakeningthecoverorexposing
cablescausing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)
cangetashockbytheelectricdischarge.

1-2Copyright©1995-2011SAMSUNG.Allrightsreserved.

WhenreplacingtheSMPSboard,pleasewait5minutesafterunpluggingthepowercord,thenreplaceit.Y ou

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.T akecaretonotetheexactlocationofpartsandalsocable
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.T akecarenottoexposetheOPCDrumeither
todirectsunlightortouorescentorincandescentroomlighting.Exposureforaslittleas5minutescandamage
thesurfaceofthephotoconductivepropertiesandwillresultinprintqualitydegradation.Takeextracarewhen
servicingtheproduct.RemovetheOPCDrumandstoreitinablackbagorotherlightproofcontainer.Take
carewhenworkingwiththeCovers(especiallythetopcover)openaslightisadmittedtotheOPCareaandcan
damagetheOPCDrum.

•TakecarenottoscratchthegreensurfaceofOPCDrumUnit.IfthegreensurfaceoftheDrumCartridgeis
scratchedortouchedtheprintqualitywillbecompromised.

Copyright©1995-2011SAMSUNG.Allrightsreserved.1-3

1.Precautions

1.2.5.Disregardingthiswarningmaycausebodilyinjury

1)Becarefulwiththehightemperaturepart.

Thefuserunitworksatahightemperature.Usecautionwhenworkingontheprinter.Waitforthefuserunitto
cooldownbeforedisassembly.

2)Donotputngersorhairintotherotatingparts.

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©1995-2011SAMSUNG.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©1995-2011SAMSUNG.Allrightsreserved.1-5

2.ProductSpecications

2.ProductSpecications

2.1.Specications

2.1.1.ProductOverview

1)Speed

•35ppminA4/37ppminLetter

2)Processor

•533MHz

3)PrinterLanguages

•PCL6/5e,PostsScript3,IBMProPrinter,EPSON

4)Memory(Std/Max)

•128MB/512MB

5)Interfaces

•HighSpeedUSB2.0

•10/100/1000BaseTXnetworkconnector

•IEEE1284Parallel(Optional)

6)Tonercartridge(Initial/Sales)

•7K/7K,15K

2.1.2.Specications

•ProductSpecicationsaresubjecttochangewithoutnotice.

2.1.2.1.GeneralPrintEngine

ItemSpecication

SimplexUpto35ppminA4(37ppminLetter) EngineSpeed

DuplexUpto17ipminA4(18ipminLetter)

Warm-uptimeFromSleep15sec

FromReadyAsfastas8sec FPOT

FromSleepAsfastas15.5sec

ResolutionUpto1,200x1,200dpieffectiveoutput

2-1Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.1.2.2.ControllerandSoftware

ItemSpecication

ProcessorSamsung533MHz

2.ProductSpecications

Memory

PrinterLanguagesPostScript3,PCL6/5e,IBMProPrinter,EPSON

Fonts93scalable,1bitmap,136PostScript3fonts

Driver

Std128MB

Max512MB

Flash16MB

DefaultDriverPCL

InstallPCL6/PS3

SupportingOS

Windows2000/XP(32/64bits)/Vista(32/64bits)/2003
Server(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008Server
R2(64bits)

VariousLinuxOS:

•RedHatEnterpriseLinuxWS4,5(32/64bit)

•Fedora4,5,6,7,8,9,10,11,12(32/64bit)

•SuSELinux10.0,10.1(32bit)

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

•Mandriva2005,2006,2007,2008,2009,2009.1(32/64bit)

•Ubuntu5.04,5.10,6.06,6.10,7.04,7.10,8.04,8.10,9.04,

9.10(32/64bit)

•SuSELinuxEnterpriseDesktop10,11(32/64bit)

•Debian4.0,5.0(32/64bit)

MacOS10.3~10.6

UNIXOS:

•SunSolaris9,10(x86,SPARC)

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

•IBMAIX5.1,5.2,5.3,5.4

WHQLWindows2000/XP(32/64bits)/Vista(32/64bits)/2003

Server(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008Server
R2(64bits)

Compatibility•PCL6:Win2000/XP(32/64bits)/2003Server(32/64bits)/

Vista(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008
ServerR2(64bits)

•PS3:Win2000/XP(32/64bits)/Vista(32/64bits)/2003

server(32/64bits)/2008Server(32/64bits)/7(32/64bits)/2008
ServerR2(64bits)PPD,MacPPD,LinuxPPD(Withinthe
scopeofSupportingOS)

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-2

2.ProductSpecications

ItemSpecication

WiredNetwork

Protocol•[TCP/IP]

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

•[Others]

HTTPs,IPPs,802.1x(EAP-MD5,EAP-MSCHAPv2,
PEAP,TLS),IPSec

SupportingOS•[Windows]

•MicrosoftWindows2000/XP(32/64bits)/

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

•[Mac]

•MacOS10.3~10.6

•[Linux]

•RedHat8~9(32bit)/EnterpriseLinuxWS4,5(32/64bit)

•FedoraCore1~7(32/64bit)

•SuSE8.2~10.2/EnterpriseDesktop9~10(32/64bit)

•Madrake9.2~10.1(32/64bit)

•Mandriva2005~2007

•Ubuntu6.06~7.04

•Debian3.1~4.0[Novell]-Netware5.x,6.x(TCP/IPOnly)

•[Novell]

•Netware5.x,6.x(TCP/IPOnly)

•[Unix]

•SunSolaris8,9,10(SP ARC/x86)

•IBMAIX5.x(6.1)IBMLinux(SystemP)

•HP-UX11i(PA-RISC/IA-64)

(11.11/11.20/11.22/11.23/11.31)

ProtocolN/A WirelessNetwork

SupportingOSN/A

EasyPrinterManagerforWindows/Macintosh/LINUX Application

NetworkManagementSyncThruWebAdminService5.0

Interface

UserInterface

2-3Copyright©1995-2011SAMSUNG.Allrightsreserved.

ParallelOption

USBHi-SpeedUSB2.0

WiredNetworkGigabit(Internal)

WirelessNetworkN/A

LCD2-Line

LEDNavigation,ECO,Power,Status

KeyNavigationkeys,ECO,NumericKeypad,Power,Cancel

2.1.2.3.PaperHandling

ItemSpecication

StandardCapacity250-sheetCassetteTray,50-sheetMultiPurposeTray@80g/m²

Max.Capacity820sheets@80g/m²(850sheets@75g/m²)

2.ProductSpecications

Printing

Multi-purposetray

StandardCassetteTray

OptionalCassetteTray

•Max.Size:216x356mm(8.5"x14")

•Min.Size:76x127mm(3.0"x5.0")

Capacity

Mediasizes

Mediatype

Mediaweight16~58lb(60to220g/m²)

SensingPaperEmpty

Capacity250sheets@80g/m²(250sheets@75g/m²)

Mediasizes

MediatypesPlainPaper,Thin,Thick,Recycled,Bond,Cardstock,Archive

Mediaweight16~43lb(60to163g/m²)

SensingPaperEmpty

Capacity520sheets@80g/m²(550sheets@75g/m²)

MediasizesA4,A5,A6,Letter,Legal,Folio,Ocio,Executive,ISOB5,JISB5

MediatypesPlainPaper,Thin,Thick,Recycled,Bond,Cardstock,Archive

•PlainPaper:50sheets@80g/m²(50sheets@75g/m²)

•Envelop:5sheets

A4,A5,A6,Letter,Legal,Folio,Ocio,Executive,ISOB5,JISB5,
3"x5",Envelope(Monarch,No.10,DL,C5,C6),Custom

Plain,Thin,Thick,Thicker,Cotton,Colored,Envelope,Transparency ,
Pre-Printed,Recycled,Labels,Bond,Cardstock,Archive

A4,A5,A6,Letter,Legal,Folio,Ocio,Executive,ISOB5,JISB5,
Custom

Mediaweight16~43lb(60to163g/m²)

SensingCSTOpen,PaperEmpty

Capacity

OutputStacking

OutputFullsensingYes

SupportingBuilt-in

MediasizesA4,Letter,Ocio,Folio,Legal

Duplex

MediatypesPlainPaper,Thin,Thick,Recycled,Bond

Mediaweight16~32lb(60to120g/m²)

PrintableAreaNon-PrintableArea

•Face-Down:150sheets@80g/m²

•Face-Up:1sheet

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

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

Right)

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-4

2.ProductSpecications

2.1.2.4.Consumables

ItemSpecication

Toner

DrumYieldN/A

Black•Standard:AverageCartridgeYield7Kstandardpages.

KeyElectronickey(CRUM)Only

LifedetectTonergaugesensorbydotcount

2.1.2.5.ReliabilityandService

ItemSpecication

RecommandedAMPV1500sheets/month

MaxAMPV3500sheets/month

Max.MonthlyDuty80,000sheets/month

MPBF45,000sheets

MTBF35months

MTTR30min.

•HighYield:A veragecartridgeYield15Kstandardpages.

(Shipswith7,000pagesStarterTonerCartridge)

DeclaredcartridgeyieldinaccordancewithISO/IEC19752.

2.1.2.6.Maintenancepart

ItemPartCodeLife

TransferrollerJC66-02842AApprox.100,000Pages

FuserUnit•JC91-01023A(110V)

•JC91-01024A(220V)

Pick-upRollerJC73-00340AApprox.90,000Pages

ReverseRollerJC90-01032AApprox.60,000Pages

Approx.90,000Pages

2.1.2.7.Environment

ItemSpecication

Temperature10Cto32C OperatingEnvironment

Humidity20%to80%

AcousticNoiseLevel

(SoundPower/Pressure)

Printing52dBA

StandbyBackGroundLevel(Lessthan26dBA)

SleepBackGroundLevel

2-5Copyright©1995-2011SAMSUNG.Allrightsreserved.

ItemSpecication

2.ProductSpecications

PowerConsumption

ReadyLessthan60W

AverageLessthan550W

Powersave/PowerOffLessthan1.5W/Lessthan0.1W

Dimension(WxDxH)Set366x368x272.9mm(14.40x14.48x10.74inches)withoutoptional

tray

WeightSet(Includetoner

10.24kg(22.58lbs)

cartridge)

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-6

2.ProductSpecications

2.1.3.ModelComparisonTable

Samsung

ML-3750ND

Image

Speed35ppm(A4)/37ppm

(Letter)

Processor533MHz600MHz600MHz400MHz

Memory
(Std/Max)

EmulationPCL6/5e,PS3PCL6/5e,PS3PCL6PCL6/PS3

MP/Cassette50/25050/25050/25050/250

SCF520sheets520sheets500sheets550sheets

DuplexStd.Std.Std.Std.

TonerYield7K/15K2K/5K/10K2.3K/6.5K3.5K/9K

Interface•HighspeedUSB

128/512MB128/384MBP2055dn(128/384MB)

2.0

•Ethernet

10/100/1000Base
TX

Samsung

ML-3710ND

35ppm(A4)/37ppm
(Letter)

•HighspeedUSB

2.0

•Ethernet

10/100/1000Base
TX

HP

P2050series

33ppm(A4)38ppm(A4)

P2055d(64/320MB)

•HighspeedUSB

Lexmark

E360dn

32/288MB

•HighspeedUSB

2.0

•Ethernet

•Ethernet10/100

10/100/1000Base
TX(P2055dn)

2.0

BaseTX

Noise52dB52dB55dB53dB

2-7Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.2.ProductDescription

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Thischapterdescribesthefunctionsandoperatingprincipalofthemaincomponent.

2.2.1.FrontView

2.ProductSpecications

1Outputtray

2Controlpanel

3Controlboardcover

4Frontcover

5Paperlevelindicator

6Optionaltray

7Tray1

8Multi-purposetray

9Multi-purposetraypaperextension

10Paperwidthguidesonamulti-purposetray

11Outputsupport

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-8

2.ProductSpecications

|

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2.2.2.RearView

1NetworkPort

2USBport

3USBport2*(ML-3753NDonly)

4IEEE1284parallelconnectorpowersupplyjack

5Power-switch

6Powerreceptacle

7Duplexunit

8Rearcover

9Traybackcover

*TwoUSBportsallowyoutoconnectaprintertotwoseparatecomputers.Printerdriversneedtobeinstalledonboth
computersforthisoperation.DoubleconnectionsfromaprintertoasinglecomputerthroughtheUSBportscanresultin
seriousdamagetotheprinterandcomputer.

2-9Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.2.3.PaperPath

[1]

S implex [2] Duplex [3] MP

Thefollowingdiagramdisplaysthepaththepaperfollowsduringtheprintingprocess.

2.ProductSpecications

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-10

2.ProductSpecications

1

2

3

4

7

6

8

5

11

10

9

2.2.4.Systemlayout

ThismodelconsistsoftheEngineparts,HardwareandFirmware.Theenginepartsconsistsofthemechanicalparts
comprisingFrame,Duplex,Tonercartridge,Driveunit,Transferroller,Fuser,Cassette.TheHardwarepartconsistsofthe
maincontrolboard,powerboard,operationpanel,PCInterface.

1LSU(LaserScanningUnit)

2TonerCartridge

3Regi.Roller

4MP

5FeedRoller

6Pick-UpRoller

7Cassette

8DuplexUnit

9Fuser

10ExitRoller1

11ExitRoller2

2-11Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.ProductSpecications

2.2.4.1.FeedingPart

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

1)Cassette

ThepapertraysconsistoftheMaintrays,Optionaltrays(SCF),andoneMulti-Purpose(MP)tray .Thebasiccassetteis
locatedonfrontsideofthemachineandallowsfeedingofcommonpaper.PapersizeissetusingtheSizeGuidesineach
tray.AdjustthePaperlength/widthguidestomatchthepapersize.

2)Pickup/Retard(Reverse)roller

Whenpickuptakesplace,thepickuprollerrotatestoseparateandtransportthepaper.Thepickuprollerrotateswhenthe
pickupclutchisactivated.Thereverserollerservetomakesurethatasinglesheetofpaperismovedtothepaperpath,
andthepaperismovedasfarastheregistrationrollerbytheworkofthefeedroller.Thefollowingisadiagramofthe
pickupsection:

3)Registrationroller

Itisusedasanantiskewdevice,andtosetupproperregistrationtimingwiththatofthetonedimageonthedrum.Italsois
usedforjamdetectiontoensurepaperhasleftthepapertray.

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-12

2.ProductSpecications

4)MPTray

Themulti-purposetraycanholdspecialsizesandtypesofprintmaterial,suchaspostcards,notecards,andenvelopes.
Itisusefulforsinglepageprintingonletterheadorcoloredpaper.Ituses3rollersfeedingmethodtofeed50sheets
ofgeneralpapers.

5)DuplexUnit

Ithaspapertransferringfunction,paperguidefunction,jamremovingfunction.Itisdesignedforbasicattachment,andthe
duplexfeedingtakesasidefeedingmethod.UsablepapersareA4,letter,andlegalsizepaper.Forremovingajamoccurred
inafrontpart,itisdesignedtoopenacassetteandaguide.Itisdesignedtoopenarearcovertoremoveajaminarearpart.
Ifafaceuptrayisopen,theduplexoptioncannotbeused.

6)OptionCassette

Itisthesamemethodwiththemaincassette,andthecapacityis520sheets.Ithasaseparatedrivingmechanism.Itis
designedforacommonusewithamaincassette.

2-13Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.2.4.2.Tonercartridge

1)Printingprocessoverview

2.ProductSpecications

ThismonoprintingsystemincludestheLSUwithalaserbeams,atonercartridgeandtransferroller .

Thismachineusessingletonercartridgeandduallaserbeamsformonoprinting.ThetonercartridgeconsistsofDrum
unitandDevelopmentunit.TheDrumunithasanOPCdrum,cleaningblade.

TheOPCdrumischargedwithanegativevoltagebythescorotronandisexposedbythelightfromtheLSU(Laser
Scanningunit).ThelightproducedbyalasercreatesalatentimagebydischargingonthesurfaceoftheOPCdrum.The
negativelychargedtonersareattractedtothelatentimageduetoandelectriceld.Thetoners(realimage)ontheOPCdrum
aremovedtothetransfermediabythepositivebiasappliedtothetransferroller.

1)ChargingtheOPCdrum:Thescorotrongivesthedrumnegativecharges.

2)Laserexposure:LightproducedbyalaserdiodeirradiatesthechargedOPCthroughthelensandmirrors.

3)Development:Thismachineusesadual-componentdevelopmentsystem.Themagneticrollercarriesnegatively
chargedtonertothelatentimageonthedrumsurface.

4)Transfer:ThetransferrollersoppositetheOPCdrumstransfertonerfromthedrumstothetransfermedia(e.g.paper,
OHPlm,etc).

5)CleaningforOPCdrum:Thecleaningbladeremovesremainingtonersonthedrumsurfaceafterimagetransfer
tothepaper.

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-14

2.ProductSpecications

2)TonerCartridge

Byusingtheelectronicphotoprocess,itcreatesavisualimage.Inthetonercartridge,theOPCunitandthedeveloping
unitareinabody.TheOPCunithasOPCdrumandchargingroller,andthetonercartridgeunithastoner,supplyroller,
developingroller,andblade(Doctorblade).

•Operationcondition:T emp10~30℃,Humidity20~85%RH

•DevelopingMethod:Nonmagnetic1elementcontactingmethod

•Toner:Nonmagnetic1elementshattertypetoner

•Thelifespanoftoner(ISO19752pattern/A4standard)

-Initialtoner:7K

-Salestoner:7K/15K

•TonerResidualSensor:DotcountwithCRUM

•OPCCleaning:Collectthetonerbyusingcleaningblade

•Handlingofwastedtoner:Collectthewastedtonerinthecleaningframebyusingcleaningblade

•OPCDrumProtectingShutter:None

•Classifyingdevicefortonercartridge:IDisclassiedbyCRUM.

aChargeRoller

bDrumOPC

cCleaningBlade

fSupplyRoller

gChargeCleaningRoller

hAgitator1

dDoctorBlade

eDeveloperRoller

2-15Copyright©1995-2011SAMSUNG.Allrightsreserved.

iAgitator2

2.ProductSpecications

Pressure Roller

Pressure Roller2

Halogen Lamp

Heat Roller

Thermistor

Thermostat

2.2.4.3.Fuserunit

Itisconsistedofahalogenlamp,heatroller,pressureroller,thermistorandthermostat.Itsticksthetoneronapaperby
heatandpressuretocompletetheprintingjob.

1)Thermostat

Whenaheatlampisoverheated,aThermostatcutsoffthemainpowertopreventover-heating.

•ThermostatType:Non-Contacttype

•ControlTemperature:170℃±5℃

2)Thermistor

Itisatemperaturedetectingsensor .

•TemperatureResistance:7(180℃)

3)Heatroller

Theheatrollertransferstheheatfromthelamptoapplyaheatonthepaper.

ThesurfaceofaheatrolleriscoatedwithTeon,sotonerdoesnotsticktothesurface.

4)Pressureroller

Apressurerollermountedunderaheatrollerismadeofasiliconresin,andthesurfacealsoiscoatedwithT eon.When
apaperpassesbetweenaheatrollerandapressureroller,toneradherestothesurfaceofapaperpermanently.

5)HalogenLamp

•V oltage:120V,115±5%/220V ,230±5%

•Capacity:850Watt±25W

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-16

2.ProductSpecications

OPC Drum

Photo Diode

LD Driver circit

Protector panel

LD(Laser Diode)

Polygon Mirror

Polygon Motor

Motor Driver

2.2.4.4.LSU(LaserScanningUnit)

ItisthecorepartoftheLBPwhichswitchesfromthevideodatareceivedtothecontrollertotheelectrostaticlatentimage
ontheOPCdrumbycontrollinglaserbeam,exposingOPCdrum,andturningprincipleofpolygonmirror.TheOPCdrumis
turnedwiththepaperfeedingspeed.The/HSYNCsignaliscreatedwhenthelaserbeamfromLSUreachestheendofthe
polygonmirror,andthesignalissenttothecontroller.Thecontrollerdetectsthe/HSYNCsignaltoadjusttheverticallineof
theimageonpaper.Inotherwords,afterthe/HSYNCsignalisdetected,theimagedataissenttotheLSUtoadjusttheleft
marginonpaper.Theonesideofthepolygonmirrorisonelineforscanning.

2-17Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.2.5.HardwareConguration

MAIN

C3N

533 MHz

FUSER Unit

ThermoS tat

Thermisto r1

Exit

Sen sor

Regi
Clutch

Pickup
Clutch

Front
Cover
Micro
Switch

24V

5V_SMP S

FUSER ON

Relay

24VS

3.3V

3.3V_Co ver_Op en1

3.3V_Co ver_Op en3.3V

DEVELOPER Unit

FAN

MAIN

FAN

SMPS

OPC MHV

DEV

Supp ly

THV

Varistor

T

D

S

DRUM

M

Main

Motor

MT

BLDC

Se rial Flas h

16MB

DDR3 1 DIMMP BA

Defa ult x1 6 128 MB(1Gb 1e a)

Opt ion x16 5 12MB(2Gb*2e a)

EEP ROM(I2C CH0 )

EEP ROM

24C51 2(Sys +NW)

SP I

000

000

00

000

00

00

00

00

00

00

00

00

000

000

000

00

00

SOL

C
R
U
M

0000

0000

RTL8211 E
Giga_ PHY

25MHz

FUSER

BIAS

INLET

MP

Clutch

Pap er

Size/Binful

Sen sor

Clock

Gene rato r

ASM3P28 63A

12MHz

MAINCLK

USB CLK

REF

0

0

USB 2 .0

Device

INLET

FUSER

SOL

HVPS

SMPS

24VS

EMPTY

Sen sor

REGI

Sen sor

MP

Sen sor

FEED

Sen sor

LSU MOTOR

Lase r Diod(Dua l Beam )

UART

Option

SCF

ECO

Canc el

Powe r

Statu s_LED

EC

O

C
ance

l

Na
vi

_K
E

Y

LCD

Relay

SYS TEM RAM

SO _DIMMCo n.

204 pin

Eras er

LED

SOL

5V

Usb

USB/P ara llel

0

DC-DC 3 CH

5V to 3 .3V,1.5V,1 .2V

2 Lin e LCD

I2C

3.3V/1.2 V

1.5V

Rea r Cove r

Micro Switch

PANEL

LSU

uart

Option

PARALLEL

(Parallel to US B)

DIMM_P BA

00

LDO

5V to 1 .8V

1.8V

TheML-3750seriesElectricalCircuitSystemconsistsofthefollowing:

•Mainboard

•OPEboard

•SMPSboard

•HVPSboard

•SCFboard(Optional)

DiagramoftheML-3750SeriesElectricalCircuit

2.ProductSpecications

TheMainControllercontrolsallmodulesrequiredtoprint,thatis,LSU,HVPS,SMPS,FAN,Fuser,etc.

TheMainControllerreceivesprintdatafromthehostthroughnetworkorUSBPort.Ittakesthisinformationandgenerates
printablevideobitmapdata.EngineandVideoControllerarenotseparated.

TheMainControlleradoptstheChorus3N(533MHz)CPU,onboardDDR3memorytoperformprintingjobssuccessfully.

TheOPEControllerdisplaysthestatusofthesystemusing16x2lineLCDinresponsetouseractionsortheMaincontroller.

TheHVPSsupplieshighvoltagefordevelopingProcess.HighVoltagecontrolledbyPWMsignalfromCPU.

TheSMPSmakes+5Vand+24VDCfrom220Vor110AC.

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-18

2.ProductSpecications

MAIN

C3 N

53 3 MHz

S e rial F las h

16 MB

DDR3 1 DIMM PBA

De fa u lt x16 1 28 MB(1 Gb 1 e a )

Op tion x16 512 MB(2Gb *2e a)

EE P RO M(I2C C H0)

EE P RO M

24C 512(S ys+NW)

S P I

RTL82 11 E
Giga _PHY

25MHz

Clock

Ge nera tor

ASM3P 2863 A

12 MHz

MAIN CLK

USB C LK

REF

US B 2 .0

De vice

S YSTEM R AM

S O_DIMM Con.

20 4pin

US B/P a ra llel

DC-DC 3 CH

5V to 3.3V,1.5 V,1.2V

I2C

3.3 V/1.2 V

1.5 V

DIMM_PBA

LDO

5V to 1.8V

1.8 V

2.2.5.1.Mainboard

ML-3750seriesMainboardiscomposedwithbelowcomponents.

•Chorus3N:T ogeneratetheprintablevideodataandcontrolengineEmbeddedUSB2.0device,Hostchannel

•Systemmemory-1CHDIMMPBADDR3128MB(Default)

•GigaEthernetPHY:Networkprinting

•SerialFlash(16MB):Programmemory

TheMainControllermanagesanElectro-photographysystem,controlstheVideoDataofprintingimagesfromMainBoard
toLSU,provideshigh-voltagesandPWMs,adjuststemperatureinthefusingsystem,readssensorsignalsandcontrols
SCFoption.

TheMaincontrolleralsocontrolsOPEandGigaN/WPHY ,USBDevice.

[Mainboarddiagram]

2-19Copyright©1995-2011SAMSUNG.Allrightsreserved.

[Mainboardimage]

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2.ProductSpecications

•Connection

1HVPS

2PaperEmpty,Regi,Feed

sensor

3OPE

4CRUM

5THERMISTOR

6OutbinFullSensor&Rear

Cover

7N/W

8USBDevice

•Information

-PartCode:JC92-02469A

-PBAName:PBA-MAIN

9ParallelOptionDCsupply

10Debug

11ExitSensor

12F ANSMPS

13Airtemperature

14MainMotor&Clutch

15SCF

16SMPSSignal

17SMPSPower

jack

18MP

19LSU

20F ANMAIN

21DDR3SODIMM

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-20

2.ProductSpecications

2.2.5.2.OPEboard

TheOPEboardiscomposedofanOPEMICOM(STM8SP103K3MAFTR),twostatusLED,ECOLED,powerLED,four
navigationLED,16x2lineLCDandsomekeys.OPEcommunicateswithmaincontrollerviaUART .

[OPEboarddiagram]

[OPEboardimage]

•Information

-PartCode:JC92-02468A

-PBAName:OPE-LCD

2-21Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.ProductSpecications

2.2.5.3.DIMMPBA-Optional

TheDIMMPBAisasystemmemorymoduleofthemainboard.Itisusedfortheoperatingsystem,somesystemapplication
programs,anditstoressomeprintdatafromtheUSBandNetworkport.TherearetwokindsofDIMMPBA.Oneis128
MB(default),theotheris512MB(optional).Toinstallthe512MBmemory,youhavetoremovethe128MBmemory.

•Information

-JC92–02473A:128MB(Default)

-CLP-MEM370:512MB(Optional)

2.2.5.4.SCFboard-Optional

TheSCFPBAistheSCFcontrolboard.ItuseUARTcommunicationwithmaincontroller.S3F443FXisusedasa
microcontroller.

•Information

-PartCode:JC82–00192A

-PBAName:A/SASSY -PBASCFMAIN

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-22

2.ProductSpecications

2.2.5.5.SMPSboard

TheSMPS(SwitchingModePowerSupply)BoardsupplieselectricpowertotheMainBoardandotherboardsthrougha
MainController.Thevoltageprovidedincludes+5V ,and+24Vfroma110V/220Vpowerinput.

[SMPSboardimage]

•Specication

GeneralInput/OutputV oltage

-AC110V(90V~135V)

-AC220V(180V~270V)

-OutputCurrent
▪+5V:1.6A
▪+24V:1.8A

-OutputPower
▪+5V:8.16W
▪+24V:43.2W

-HeatLampCapacity:850W

•Information

110V220V

PartCodeJC44-00095DJC44-00096D

PBANameSMPSV1SMPSV2

•Connection

1INPUT_AC

2Fuser_ACOutput

3SMPSControlSignal(fromEnginePBA)

4OUTPUT_5V&24V(toDCPOWERPBA)

2-23Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.ProductSpecications

2.2.5.6.HVPSboard

HighV oltagePowerSupply(HVPS)boardgenerateshigh-voltagechannelswhichincludesMHV,DEV ,BLADE,SUPPL Y,
OPC,THVandFUSERBIAS.

•Connection

•Information

-PartCode:JC44-00197A

-PBAName:HVPS

1MainInterface

2MHV(-1240V)

3DEV(-338V)

4BLADE(-389V)

5SUPPLY(-489V)

6OPC(-51V)

7THV(+1315V,-1000V)

8FUSERBIAS(240V)

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-24

2.ProductSpecications

2.2.6.EngineF/WControlAlgorithm

2.2.6.1.Feeding

Iffeedingfromacassette,thedriveofthepickuprolleriscontrolledbycontrollingtheclutch.Theon/offoftheclutchis
controlledbycontrollingthegeneraloutputportortheexternaloutputport.Whilepapermoves,occurrenceofJam
isjudgedasbelow.

ItemDescription

JAM0•Afterpickingup,paperdoesnotreachtheFeedSensorwithinapredeterminedtime.

•Afterpickingup,ifthefeedsensorisnoton,re-pickupwillbeinitiated..Afterre-pickingup,ifthe

feedsensorisnotonaftercertaintime,itisJAM0.

•Eventhoughthepaperreachestothefeedsensor,thefeedsensordoesnotdetecttheleadedgeof

thepaper.

JAM1•Aftertheleadingedgeofthepaperpassesthefeedsensor,thetrailingedgeofthepaperdoesnotclear

thesensorafterpredeterminedperiodoftime.

•Aftertheleadingedgeofthepaperpassesthefeedsensor,thepapercannotreachtheexitsensor

afterpredeterminedperiodoftime.

*Thepaperexistsbetweenthefeedsensorandtheexitsensor.

JAM2•Thetrailingedgeofthepaperdoesnotcleartheexitsensorwithinapredetermined.

2.2.6.2.Transfer

Thechargingvoltage,developingvoltageandthetransfervoltagearecontrolledbyPWM(PulseWidthModulation).The
eachoutputvoltageischangeableduetothePWMduty.Thetransfervoltageadmittedwhenthepaperpassesthetransfer
rollerisdecidedbyenvironmentconditions.Theresistancevalueofthetransferrollerischangedduetothesurrounding
environmentortheenvironmentoftheset,andthevoltagevalue,whichchangesduetotheenvironment,ischangedthrough
theADconverter.Thevoltagevalueforimpressingtothetransferrollerisdecidedbythechangedvalue.

2-25Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.ProductSpecications

2.2.6.3.Fusing

Thetemperaturechangeoftheheatroller’ssurfaceischangedtotheresistancevaluethroughtheuseofathermistor.
TheMainBoardusestheresistancevalueoftheThermistorandconvertsittoavoltagevaluethroughtheuseofanAD
converter,thetemperatureisdecidedbasedonthevoltagevalueread.TheACpoweriscontrolledbycomparingthetarget
temperaturetothevaluefromthethermistor.Ifthevaluefromthethermistorisoutofcontrollingrangewhilecontrollingthe
fusing,theerrorstatedinthebelowtableoccurs.

•OpenHeatError

Whentheengineoperatesthewarm-upprocess,ifthetemperatureofthexingunitisnothigherthanaspecied
temperaturewithinapredeterminedtime,theenginedenesOpenHeatError.Whenthiserrorisdetected,theengine
stopsallfunctionsandkeepstheerrorstate.Also,theengineinformstheerrorstatusofthemainsystem,soitcantake
appropriateaction;andthentheerrormessageisdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.

•LowHeatError

Whentheengineisatstand-by,printingorwarm-upmode,ifthetemperatureofthexingunitislowerthanthe
speciedtemperatureateachstateandthelowertemperaturestateismaintainedduringthespeciedtime,theengine
denesLowHeatError.Whenthiserrorisdetected,theenginestopsallfunctionsandkeepsitattheerrorstate.Also,
theengineinformstheerrorstatusofthemainsystem,soitcantakeappropriateaction;andthentheerrormessage
isdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.

•OverHeatError

Foroverallenginestate,ifthetemperatureofthexingunitishigherthanthespeciedtemperatureandthetemperature
stateisdetectedforaspecicduration,thentheenginedenesOverHeatError.Whenthiserrorisdetected,theengine
stopsallfunctionsandkeepsitattheerrorstate.Also,theengineinformstheerrorstatusofthemainsystem,soit
cantakeappropriateaction;andthentheerrormessageisdisplayedatLCDwindoworLEDinformingtheerror
statusoftheuser.

2.2.6.4.LSU

LSUreceivestheimagedatafromPVCorHPVCandmakethelatentimageonOPCsurface.Itusesthedualbeam,
LD.TheerrorsrelatedtoLSUareasfollows:

•ByLready

Whentheprintingisstarted,theenginedrivesthepolygonmotorofLSU.Afterthespeciedtimeiselapsed,ifthe
motorisnotinareadystatus,theenginedetectstheerrorthatthepolygonmotorisnotinareadystatus.Ifthiserror
happens,theenginestopsallfunctionsandkeepsitattheerrorstate.Also,theengineinformstheerrorstatusofthe
mainsystemandtheerrormessageisdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.

•ByHsync

Whenthepolygonmotorisready,theLSUsendsoutthesignalcalledHsyncandusedtosynchronizewitheachimage
line.So,iftheenginedoesnotdetectconsecutivelythesignalforaxedtime,itdenestheHsyncError.Ifthiserror
happens,theenginestopsallfunctionsandkeepsitattheerrorstate.Also,theengineinformstheerrorstatusofthe
mainsystemandthentheerrormessageisdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.LSU
ErrorRecovery:IftheLReadyorHsyncerrorhappens,thepaperisexitedbeforetheerrorcodeisinitiated.Theengine
modeischangedtorecoverymodeandtheengineinformsthemainsystemoftheenginemode.Theenginerechecks
theLSUerror,iftheerrordoesnotreoccurprintingisresumed.

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-26

2.ProductSpecications

P r in te r /MFP

HOS T

S o ftwa re

Driv e r

Web -b a s ed
App lic atio n

S ta n d -a lo n e

App lic atio n

Fi rm wa r e

App lic atio n

(Em ula tio n)

Ker n e l

2.2.7.SoftwareDescriptions

2.2.7.1.Softwaresystemoverview

Thesoftwaresystemofthismodelisconstructedwith

•HostSoftwarepartthattheapplicationsoftwareoperatedinWindowandWebEnvironment

•FirmwarepartsthatisaEmbeddedsoftwarecontrolsprintingjob.

2.2.7.2.Architecture

HostSoftwareismadeupof

1)GraphicUserInterfaceoffersthevariouseditingfunctionstouserinHost.

2)DrivertranslatesthereceiveddocumenttoaPrintingCommandlanguagewhichprintercanunderstandandtransfers
datatospooler.

3)Stand-aloneApplicationoffersthevariousprintingapplicationsuchasEasyPrinterManager,PrinterStatusinWindow
system.

4)Web-based-ApplicationoffersthesamefunctionsasStand-aloneApplicationinWebenvironment.

Firmwareismadeupof

1)Application(Emulation)thatisainterpretertranslatesdatareceivedfromHosttoaprintinglanguage(PCL,PS,GDI,
etc.)tobeabletomaketheusertotakesameoutputasoriginallyonewhatcomposedinHost.

2)KernelcontrolsandmanagethewholeprocedureincludingControlowandPrintingJobbeforetransferringtoEngine
system.

2-27Copyright©1995-2011SAMSUNG.Allrightsreserved.

2.2.7.3.DataandControlFlow

Drive r

- PCL3, PS 3

Web -b as e d

- Do c ument Manag e m e nt

S ys te m

- Netwo rk Ad m inis tration

- S ta tus Monito r

- Re m o te Co ntrol Pa ne l

S t a n d -a lo n e

- P rinter S etting Utility

- Netwo rk Ad m inis tration

- S ta tus Monito r

Q

Q

p

p

s

s

uu

N

N

p

p

o

o

jj

u

u

p

p

s

s

Netwo r k

Interfa c e

App lic a tio n

KERNEL

App lic a tio n

(Em ulatio n )

- P CL

- P S 3

En g in e

US B

Ho s t Firm w a re

2.ProductSpecications

TheaboveBlockDiagramisexplainedthat:

HostSideismadeupof

1)DriverthatisWindowsapplicationsoftwaretranslateprinteddatatooneofprinterlanguageandcreatespoolerle.

2)Web-basedApplicationthatofferavariousprinteradditionalfunctions,managementofprintingjob,printer
administration,StatusmonitortomonitoringtheprinterstatusbyrealtimeinW eb,independentenvironmentonOS.

3)Stand-aloneApplicationthatisasimilarWindowsoftwareassameasabove2.

4)PortMonitorthatmanagesthenetworkcommunicationbetweenspoolerandNetworkInterfaceCard,orvarious
additionalapplicationandNetworkInterfaceCard,(thisis,atrst,makecommunicationlogicalport,managethedata,
transferthemfromspoolertonetworkport,andoffertheresultofprinting).

FirmwareSideismadeupof

1)NetworkInterfaceCardisthatrelaythecommunicationbetweenHostandkernelusingvariousnetworkprotocol.

2)Kernelisthatmanagestheowcontrolofemulationprocedure,receivingdatafromHostorNetworkcardandprinting
withengine&renderingjob.

Copyright©1995-2011SAMSUNG.Allrightsreserved.2-28

2.ProductSpecications

3)Emulationisthatinterpretsthevariousoutputdatafromselectedemulation.

4)Engineisthatprintsrenderedbit-mapdatatopaperwithrequiredsizeandtypebyKernel.

Andthen,forJobSpoolingfunctionforMulti-User,Multi-PrintingthatisoccurredinNetworkprintingandvarious
additionalprintingfunctions,thisKernelusemax.10Queuingsystemsinamemory.

InPrinting,thetwoproceduresare

1)CaseofusingUSBPort

•AfteruserstarttoprintthewanteddocumenttoPCLstringorcompressedGDIbit-mapdata,theDrivertranslates
theallgraphicdataoftheclientPCandsenddatatohostspooler.Andthenthespoolersendsthedatastreamto
theprinterviaUSBport.

•KernelreceivesthisdatafromHost,andthenselectemulationttodataandstartselectedone.Afteremulationjob
end,Kernelsendstheoutputbit-mapdatatoEngineusingPrinterVideoController(byclocktypeforLSU).

•Engineprintthereceiveddatatorequiredpaperwiththesequentialdevelopingprocess.

2)CaseofusingNetworkInterfaceCard

•AfteruserstarttoprintthewanteddocumenttoPCLstringorcompressedGDIbit-mapdata,Drivertranslatethe
allgraphicdataofitandsenddatatohostspooler.

•Ifso,PortmonitormanagingnetworkportreceivesdatafromspoolerandsendsadatastreamtotheNetwork
InterfaceCard.

•NetworkinterfacecardreceivesitandsendtoKernelpart.

•KernelreceivesthisdatafromHost,andthenselectemulationttodataandstartselectedone.Afteremulationjob
end,Kernelsendstheoutputbit-mapdatatoEngineusingPrinterVideoController(byclocktypeforLSU).

•Engineprintthereceiveddatatorequiredpaperwiththesequentialdevelopingprocess.

2-29Copyright©1995-2011SAMSUNG.Allrightsreserved.

3.DisassemblyandReassembly

3.DisassemblyandReassembly

3.1.Precautionswhenreplacingparts

3.1.1.Precautionswhenassemblinganddisassembling

•UseonlyapprovedSamsungspareparts.Ensurethatpartnumber,productname,anyvoltage,currentortemperature

ratingarecorrect.Failuretodosocouldresultindamagetothemachine,circuitoverload,reorelectricshock.

•Donotmakeanyunauthorizedchangesoradditionstotheprinter,thesecouldcausetheprintertomalfunctionand

createelectricshockorrehazards.

•Takecarewhendismantlingtheunittonotewhereeachscrewgoes.Thereare19differentscrews.Useofthewrong

screwcouldleadtosystemfailure,shortcircuitorelectricshock.

•DonotdisassembletheLSUunit.Onceitisdisassembleddustisadmittedtothemirrorchamberandwillseriously

degradeprintquality .Therearenoserviceablepartsinside.

•Regularlychecktheconditionofthepowercord,plugandsocket.Badcontactscouldleadtooverheatingandrfe.

Damagedcablescouldleadtoelectricshockorunitmalfunction.

3.1.2.PreautionswhenhandlingPBA

StaticelectricitycandamageaPBA,alwaysusedapprovedanti-staticprecautionswhenhandlingorstoringaPBA.

•PrecautionswhenmovingandstoringPBA

1)PleasekeepPBAinaconductivecase,anti-staticbag,orwrappedinaluminumfoil.

2)DonotstoreaPBAwhereitisexposedtodirectsunlight.

•PrecautionswhenreplacingPBA

1)Disconnectpowerconnectorsrst,beforedisconnectingothercables.

2)Donottouchanysolderedconnections,connectorterminalsorotherelectronicpartswhenhandlinginsulatedparts.

•PrecautionswhencheckingPBA

1)BeforetouchingaPBA,pleasetouchothergroundedareasofthechassistodischargeanystaticelectricalcharge
onthebody.

2)TakecarenottotouchthePBAwithyourbarehandsormetalobjectsasyoucouldcreateashortcircuitorgetan
electricshock.TakeextracarewhenhandlingPBAswithmovingpartsttedsuchassensors,motorsorlampsas
theymaygethot.

3)Takecarewhentting,orremoving,screws.Lookoutforhiddenscrews.Alwaysensurethatthecorrectscrewis
usedandalwaysensurethatwhentoothedwashersareremovedtheyarerettedintheiroriginalpositions.

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-1

3.DisassemblyandReassembly

3.1.3.ReleasingPlasticLatches

Manyofthepartsareheldinplacewithplasticlatches.Thelatchesbreakeasily;releasethemcarefully.

Toremovesuchparts,pressthehookendofthelatchawayfromtheparttowhichitislatched.

3-2Copyright©1995-2011SAMSUNG.Allrightsreserved.

3.DisassemblyandReassembly

3.2.Screwsusedintheprinter

Thescrewslistedinthetablebelowareusedinthisprinter.Pleaseensurethat,whenyoudisassembletheprinter,youkeep
anoteofwhichscrewisusedforwhichpartandthat,whenreassemblingtheprinter,thecorrectscrewsareusedinthe
appropriateplaces.

PartCodeLocationDescriptionQty

6002-000440DUPLEXSCREW-T APPING;PWH,+,2,M3,L8,ZPC(BLK),SWRCH18A5

6003-000196SCREW-T APTYPE;PWH,+,B,M3,L10,NIPLT ,SWRCH18A20

6003-000261SCREW-T APTYPE;BH,+,-,B,M3,L6,ZPC(WHT),SWRCH18A,-2

6003-000269

6003-000196MPSCREW-T APTYPE;PWH,+,B,M3,L10,NIPL T,SWRCH18A2

6003-000196SCREW-T APTYPE;PWH,+,B,M3,L10,NIPLT ,SWRCH18A5

6003-000269SCREW-T APTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,-3

6003-000282

6003-000269DRIVESCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,-6

6003-000196SCREW-T APTYPE;PWH,+,B,M3,L10,NIPLT ,SWRCH18A38

6003-000261SCREW-T APTYPE;BH,+,-,B,M3,L6,ZPC(WHT),SWRCH18A,-3

6003-000301

6006-001078FRAME-ETCSCREW-T APTYPE;PH,+,WSP ,B,M3,L10,ZPC(WHT),SWRCH18A1

6003-000282LSUSCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-5

6003-000196COVER-TOPSCREW-TAPTYPE;PWH,+,B,M3,L10,NIPL T ,SWRCH18A3

6003-000196COVER-FRONTSCREW-TAPTYPE;PWH,+,B,M3,L10,NIPL T,SWRCH18A2

6003-000264MPGUIDE-TRAYSCREW-T APTYPE;PWH,+,-,B,M3,L6,ZPC(WHT),SWRCH18A,-1

6003-000282CARTRIDGE-TONERSCREW-T APTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-5

6003-000196OPESCREW-TAPTYPE;PWH,+,B,M3,L10,NIPLT,SWRCH18A5

FRAMEMAIN

SCREW-T APTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,-3

FUSER

SCREW-T APTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-4

FRAME-ETC

SCREW-T APTYPE;BH,+,S,M4,L6,ZPC(WHT),SWRCH18A1

6003-000196MAINLINESCREW-TAPTYPE;PWH,+,B,M3,L10,NIPL T ,SWRCH18A9

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-3

3.DisassemblyandReassembly

3.3.ReplacingtheMainSVCparts

3.3.1.Cover

1.Removethecassette.

2.Openthefrontcover.Removethetonercartridge.

4.Toremovethetopcover,rst,remove2screws.

5.Opentherearcover.Remove2screws.

3.Removethefrontcoverbyreleasingbothhooks.

3-4Copyright©1995-2011SAMSUNG.Allrightsreserved.

6.Unplugaconnectoronthemainboard.

3.DisassemblyandReassembly

7.Liftupandreleasethetopcover.

8.Closetherearcover.Removetheduplexunit.

10.Removetheleftcoverbyreleasinghooks.

11.Removetherightcoverbyreleasinghooks.

9.Removetherearcoverbyreleasingbothhooks.

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-5

3.DisassemblyandReassembly

3.3.2.Mainboard

1.Removetherightcover.(Referto3.3.1Cover)

2.Unplugallconnectorsonthemainboard.

3.Remove4screws.

3.3.3.HVPSboard

1.Removetherightcover.(Referto3.3.1Cover)

2.Remove5screws.

3.UnplugallconnectorsontheHVPSboard.

4.Releasethemainboard.

4.ReleasetheHVPSboard.

3-6Copyright©1995-2011SAMSUNG.Allrightsreserved.

3.3.4.SMPSboard

3.DisassemblyandReassembly

1.Removetherightcover.(Referto3.3.1Cover)

2.UnplugallconnectorsontheSMPSboard.

3.Remove4screws.

3.3.5.LaserScanningUnit(LSU)

1.Removethetopcover.(Referto3.3.1Cover)

2.Unplug2atcablesfromtheLSU.

3.Remove3screws.

4.ReleasetheSMPSboard.

4.ReleasetheLSU.

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-7

3.DisassemblyandReassembly

3.3.6.Fuserunit

CAUTION

Thetemperaturegetshighinthevicinityofthefuserunit.
Whenreplacingit,youmaygetburned.Beforereplacing
it,makesurethatfuserunithascooled.

1.OpentheFrame-Rearbypushingbothgreenpoints.

2.RemovetheFrame-Rearbyreleasingbothhooks.

3.Removetheexitsensorholderafterremoving2screws.

4.Remove4screws.

CAUTION

Whenreassemblingthefuserunit,donotforgetto
tightenthesescrews.

5.Releasethefuserunit.

3-8Copyright©1995-2011SAMSUNG.Allrightsreserved.

3.3.7.MainDriveunit

1.Removetheleftcover.(Referto3.3.1Cover)

2.RemovetheBarcoupler.

3.Removethemaindriveunitafterremoving6screws.

3.DisassemblyandReassembly

NOTE

Whenreassemblingthemaindriveunit,tighten6screws
inorderasshownabove.

4.Unplugtheconnectorfromthemainmotor.

5.Releasethemaindriveunit.

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-9

3.DisassemblyandReassembly

3.3.8.Feeddriveunit

1.Removethemaindriveunit.(Referto3.3.7)

2.Releasethefeeddriveunitafterremoving2screwsand

1E-ring.

3-10Copyright©1995-2011SAMSUNG.Allrightsreserved.

3.DisassemblyandReassembly

3.3.9.Pickup/Regi./MPClutch

1.Removethefeeddriveunit.2.Fortheclutchtorequirereplacement,unplugthe
connectorthenreplaceit.

3.3.10.Pickuproller

1.Removethecassetteandduplexunit.

2.Pullthesmalltapdown,thenreleasethepickuproller.

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-11

3.DisassemblyandReassembly

3.3.11.TransferRoller

1.Removethetopcover.(Referto3.3.1Cover)

2.ReleasetheLSUbracketafterremoving4screws.

3.Pushthetransferrollerholdertothecenterandrelease

it.

3.3.12.MPunit

4.Removethetransferroller.

1.Removethefront/top/rightcover.

2.Remove4screws.

3.SeparatetheMPlowerfromtheMPupper.

3-12Copyright©1995-2011SAMSUNG.Allrightsreserved.

3.3.13.OPEboard

1.Removethetopcover.(Referto3.3.1Cover)

2.ReleasetheOPEboardafterremoving4screws.

3.DisassemblyandReassembly

3.3.14.Bin-fullsensor

1.Removethetop/leftcover.(Referto3.3.1Cover)

2.Releasethebin-fullsensorafterunpluggingthe

connector.

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-13

3.DisassemblyandReassembly

3.3.15.Regi_Feed_Emptysensor

1.Removethecassetteandduplexunit.

2.RemovethePLATE-FRAMEBOTTOMafterremoving

4screws.

3.Removethesensorcoverafterremoving2screws.

5.Removethesensorcoverafterremoving2screws.

6.Unplugtheconnectorthenreleasetheemptysensor.

4.Forthesensortorequirereplacement,unplugthe

connectorthenreplaceit.

3-14Copyright©1995-2011SAMSUNG.Allrightsreserved.

3.3.16.Cassetteroller(Retardroller)

3.DisassemblyandReassembly

1.Removethecassette.

2.OpentheCOVER-CASSETTE.

3.ReleasetheRetardroller.

Copyright©1995-2011SAMSUNG.Allrightsreserved.3-15

4.AlignmentandTroubleshooting

vv

e

e

w

w

x

x

y

y

}

}

|

|

{

{

zz

~

~

v

v

u

u

4.AlignmentandTroubleshooting

4.1.AlignmentandAdjustments

Thischapterdescribesthemainfunctionsforservice,suchastheproductmaintenancemethod,thetestoutputrelatedto
maintenanceandrepair,Jamremovingmethod,andsoon.

4.1.1.ControlPanel

1DisplayShowsthecurrentstatusandpromptsduringanoperation.

2MenuEntersmenumodeandscrollsthroughtheavailablemenus.

3OKConrmstheselectiononthedisplay .

4BackSendsyoubacktotheuppermenulevel.

5NumerickeypadUsethekeypadtoenternumbersandcharacters.ItisusefulforenteringIP

6CancelStopsanoperationatanytime.

7PowerYoucanturnthepoweronandoffwiththisbutton.

8StatusLEDShowsthestatusofyourmachine.

9EcoEntersecomodetoreducetonerconsumptionandpaperusage.

10ArrowsNavigatesavailablevaluesbymovingtothenextorpreviousoptions.

4-1Copyright©1995-2011SAMSUNG.Allrightsreserved.

addresses.

4.1.2.UnderstandingTheStatusLED

ThecoloroftheStatusindicatesthemachine’scurrentstatus.

StatusDescription

OffThemachineisoff-line.

BlinkingThemachineisreceivingdatafromthecomputerorthemachineisprintingdata. Green

OnThemachineison-lineandcanbeused.

4.AlignmentandTroubleshooting

Red

Blinking•Aminorerrorhasoccurredandthemachineiswaitingfortheerrortobe

cleared.Checkthedisplaymessage.Whentheproblemiscleared,the
machineresumes.

•Smallamountoftonerisleftinthecartridge.Theestimatedcartridge

lifeoftonerisclose.Prepareanewcartridgeforreplacement.Y oumay
temporarilyincreasetheprintingqualitybyredistributingthetoner.

On•Atonercartridgehasalmostreacheditsestimatedcartridgelife*.

•Thecoverisopened.Closethecover.

•Thereisnopaperinthetray .Loadpaperinthetray.

•Themachinehasstoppedduetoamajorerror.

•Apaperjamhasoccurred.

*Estimatedcartridgelifemeanstheexpectedorestimatedtonercartridgelife,whichindicatestheaveragecapacityof
print-outsandisdesignedpursuanttoISO/IEC19752.Thenumberofpagesmaybeaffectedbyoperatingenvironment,
printinginterval,graphics,mediatypeandmediasize.Someamountoftonermayremaininthecartridgeevenwhen
redLEDisonandtheprinterstopsprinting.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-2

4.AlignmentandTroubleshooting

0

0

0

0

4.1.3.Clearingpaperjams

NOTE

Toavoidtearingthepaper,pullthejammedpaperoutslowly
andgently.

Intray1

1)Openandclosethefrontcover.Thejammedpaperis
automaticallyejectedfromthemachine.

Ifthepaperdoesnotexit,gotothenextstep.

2)Pullouttray1.

Inoptionaltray2

3)Removethejammedpaperbygentlypullingitstraight
out.

Ifthepaperdoesnotmovewhenyoupull,orifyou
donotseethepaperinthisarea,checkthefuserarea
aroundthetonercartridge.

4)Inserttray1backintothemachineuntilitsnapsinto
place.Printingautomaticallyresumes.

1)Pulloutoptionaltray2.

2)Removethejammedpaperfromthemachine.

Ifthepaperdoesnotmovewhenyoupullorifyoudo
notseethepaperinthisarea,stopandgotothenext
step.

3)Pulltray1half-wayout.

4)Pullthepaperstraightupandout.

5)Insertthetraysbackintothemachine.Printing
automaticallyresumes.

4-3Copyright©1995-2011SAMSUNG.Allrightsreserved.

Inthemulti-purposetray

0

0

0

0

x

x

4.AlignmentandTroubleshooting

1)Ifthepaperisnotfeedingproperly ,pullthepaperout
ofthemachine.

Insidethemachine

NOTE

Thefuserareaishot.Takecarewhenremovingpaperfrom
themachine.

1)Openthefrontcoverandpullthetonercartridgeout.

2)Openandclosethefrontcovertoresumeprinting.

2)Removethejammedpaperbygentlypullingitstraight
out.

3)Replacethetonercartridgeandclosethefrontcover.
Printingautomaticallyresumes.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-4

4.AlignmentandTroubleshooting

0

0

0

x

x

0

0

0

0

0

vv

v

v

e

e

ww

e

e

xx

Intheexitarea

1)Openandclosethefrontcover.Thejammedpaperis
automaticallyejectedfromthemachine.

Ifyoudonotseethejammedpaper,gotothenextstep.

2)Gentlypullthepaperoutoftheoutputtray.

Ifyoudonotseethejammedpaperorifthereisany
resistancewhenyoupull,stopandgotothenextstep.

3)Opentherearcover.

4)Removethejammedpaperasshowninthefollowing
gure.

5)Closetherearcover.Printingautomaticallyresumes.

4-5Copyright©1995-2011SAMSUNG.Allrightsreserved.

Intheduplexunitarea

0

0

0

0

x

x

0

0

0

0

0

vv

v

v

e

e

ww

e

e

xx

4.AlignmentandTroubleshooting

1)Pulltheduplexunitoutofthemachine.

2)Removethejammedpaperfromtheduplexunit.

3)Inserttheduplexunitintothemachine.

4)Opentherearcover.

5)Removethejammedpaperasshowninthefollowing
gure.

Ifthepaperdoesnotcomeoutwiththeduplexunit,
removethepaperfromthebottomofthemachine.

6)Closetherearcover.Printingautomaticallyresumes.

Ifyoustilldonotseethepaper,gotothenextstep.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-6

4.AlignmentandTroubleshooting

4.1.4.Usefulmenuitemforservice

a)Monitoringthesupplieslife.

Toviewthesupplylifeindicators,followthestepsbelow:

1)PressMenuonthecontrolpanel.

2)PressSystemSetup>OK>Maintenance>OK.

3)PressSuppliesInfo>OK.

4)PressOKtoselecttheoptionyouwant.

b)Printingareport

Thisproductprovidesseveralprintablereportsformaintenancepurposes.

Thesereportscanbeusedtoaidthediagnosisofprintqualityproblems.

•Demopage(Menu>Information>Demopage)

Youcanprintthedemopagetocheckwhetheryourmachineisprintingproperlyornot.

•Congurationreport(Menu>Information>Conguration)

Youcanprintareportonthemachine’soverallconguration.ItshowsvariousSWversionandcurrentmachine
settingstatus.

•SuppliesInformationreport(Menu>Information>SuppliesInfo.)

Youcanprintsupplies’informationpage.Itshowsconsumableunitlifestatusandtonerusingstatus.

•UsageCounter(Menu>Information>UsageCounter)

Youcanprintausagepage.Theusagepagecontainsthetotalnumberofpagesprinted.

c)Maintenancemenu

Thismenuallowsyoutomaintainyourmachine.(Menu>Systemsetup>Maintenance)

•CleanDrum:CleanstheOPCdrumofthecartridgebyprintingasheet.

•CleanFuser:Cleansthefuserbyprintingasheet.

•CLREmptyMsg.:Thisoptionappearsonlywhentonercartridgeisempty.

•SuppliesInfo.:Thisitemallowsyoutocheckhowmanypagesareprintedandhowmuchtonerareleftinthecartridge.

•TonerLowAlert:Iftonerinthecartridgehasrunout,amessageinformingusertochangethetonercartridgeappears.

Youcansettheoptionforthismessagetoappearornot.

•PaperStacking:Ifyouuseamachineinahumidarea,oryouareusingthedampprintmediacausedbyahigh

humidity,theprintoutsontheoutputtraymaybecurledandmaynotbestackedproperly .Inthiscase,youcansetthe
machinetousethisfunctiontoletprint-outsstackedrmly.But,usingthisfunctionwillmaketheprintspeedslow.

4-7Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

1 High 3

2 High 2
3 High 1

4 Nor m al

0

4,000 m

(13,123 ft)

3,000 m

(9,842 ft)

2,000 m

(6,561 ft)

1,000 m

(3,280 ft)

4

3

2

1

d)Altitudeadjustment

Printqualityisaffectedbyatmosphericpressure,whichisdeterminedbytheheightofthemachineabovesealevel.The
followinginformationwillguideyouonhowtosetyourmachineforthebestprintquality.

Beforeyousetthealtitudevalue,determinethealtitudewhereyouare.

1)EnsurethatyouhaveinstalledtheprinterdriverwiththeprovidedPrinterSoftwareCD.

2)Double-clicktheSmartPaneliconontheNoticationAreainLinux.Y oucanalsoclickSmartPanelonthestatus
barinMacOSX.ForWindowsuser,selectStart>ProgramsorAllPrograms>SamsungPrinters>SamsungEasy
PrinterManager.

3)ClickPrinterSetting.

NOTE

Ifyourmachineisconnectedtothenetwork,youcansetthealtitudeviaSyncThru™W ebService.

4)ClickSetting>AltitudeAdjustment.Selecttheappropriatevaluefromthedrop-downlist,andthenclickApply.

NOTE

YoucanalsosetthealtitudeinSystemSetup>AltitudeAdj.optiononthemachine’sdisplay.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-8

4.AlignmentandTroubleshooting

1

3

8

2

7

4

6

5

4.1.5.PeriodicDefectiveImage

Ifanimagedefectsappearsatregularintervalsontheprinted-paper,itisduetoafaultyordamagedroller.Refertothetable
belowandchecktheconditionoftheappropriateroller.

NoRollerDescription

11stPressurerollerBackground

22ndPressurerollerBackground

3HeatrollerBlackspotandfuserghost

4Chargeroller26.7mmBlackspot

5Developerroller36.78mmHorizontalband

6OPCdrum75.49mmWhiteandBlackspots

7Supplyroller69.57mmHorizontalband

8TransferrollerGhost,Damagedimage

BandPeriod
(mm)

PhenomenonDefectivepart

Fuserunit

Tonercartridge

4-9Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

4.1.6.Usefulmanagementtools

4.1.6.1.UsingSamsungEasyPrinterManager(Windowsonly)

NOTE

•ForWindows,InternetExplorer6.0orhigheristheminimumrequirementforSamsungEasyPrinterManager.

SamsungEasyPrinterManagerisanapplicationthatcombinesSamsungmachinesettingsintoonelocation.Samsung
EasyPrinterManagercombinesdevicesettingsaswellasprintingenvironments,settings/actionsandlaunching.Allof
thesefeaturesprovideagatewaytoconvenientlyuseyourSamsungmachine.SamsungEasyPrinterManagerprovidestwo
differentuserinterfacesfortheusertochoosefrom:thebasicuserinterfaceandtheadvanceduserinterface.Switching
betweenthetwointerfacesiseasy:justclickabutton.

UnderstandingSamsungEasyPrinterManager

Toopentheprogram:

•SelectStart>ProgramsorAllPrograms>SamsungPrinters>SamsungEasyPrinterManager>SamsungEasy

PrinterManager.

TheSamsungEasyPrinterManagerinterfaceiscomprisedofvariousbasicsectionsasdescribedinthetablethatfollows:

NOTE

Thescreenshotmaydifferdependingonoperatingsystemyouareusing.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-10

4.AlignmentandTroubleshooting

NoAreaDescription

1PrinterListTheprinterlistdisplaystheinstalledprintericonsonyourcomputer.

2PrinterInformationThisareagivesyougeneralinformationaboutyourmachine.Youcancheck

information,suchasthemachine’smodelname,IPaddress(orPortname),
andmachinestatus.

NOTE

User’sGuidebutton:ThisbuttonopensTroubleshootingGuidewhenan
erroroccurs.Y oucandirectlyopenthenecessarysectionintheuser’sguide.

3ApplicationInformationIncludeslinksforchangingtotheadvancedsettings,preference,help,and

about.

4QuicklinksDisplaysQuicklinkstomachinespecicfunctions.Thissectionalsoincludes

linkstoapplicationsintheadvancedsettings.

5ContentsAreaDisplaysinformationabouttheselectedmachine,remainingtonerlevel,

andpaper.Theinformationwillvarybasedonthemachineselected.Some
machinesdonothavethisfeature.

6OrderSuppliesClickontheOrderbuttonfromthesupplyorderingwindow.Y oucanorder

replacementtonercartridge(s)fromonline.

Advancedsettingsuserinterfaceoverview

Theadvanceduserinterfaceisintendedtobeusedbythepersonresponsibleformanagingthenetworkandmachines.

•DeviceSettings

Youcancongurevariousmachinesettingssuchasmachinesetup,paper,layout,emulation,network,andprint
information.

•AlertSettings

Thisismenuincludessettingsrelatedtoerroralerting.

-PrinterAlert:Providessettingsrelatedtowhenalertswillbereceived.

-EmailAlert:Providesoptionsrelatingtoreceivingalertsviaemail.

-HistoryAlert:Providesahistoryofdeviceandtonerrelatedalerts.

•JobAccounting

Providesqueryingofquotainformationofthespeciedjobaccountinguser.Thisquotainformationcanbecreatedand
appliedtodevicesbyjobaccountingsoftwaresuchasSyncThru™orCounThru™adminsoftware.

4-11Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

4.1.6.2.UsingSamsungPrinterStatus(Windowsonly)

TheSamsungPrinterStatusisaprogramthatmonitorsandinformsyouofthemachinestatus.

NOTE

•TheSamsungPrinterStatuswindowanditscontentsshowninthisuser’sguidemaydifferdependingonthemachine
oroperatingsysteminuse.

•Checktheoperatingsystem(s)thatarecompatiblewithyourmachine.

SamsungPrinterStatusoverview

Ifanerroroccurswhileoperating,youcanchecktheerrorfromtheSamsungPrinterStatus.SamsungPrinterStatusis
installedautomaticallywhenyouinstallthemachinesoftware.

YoucanalsolaunchSamsungPrinterStatusmanually.GotothePrintingPreferences,clicktheBasictab>Printer
Statusbutton.

TheseiconsappearontheWindowstaskbar:

IconMeanDescription

NormalThemachineisinreadymodeandexperiencingnoerrorsorwarnings.

WarningThemachineisinastatewhereasofterrorhasoccurred.Forexample,atonerlowstatus,

whichmayleadtotoneremptystatus.

ErrorThemachinehasatleastoneharderror,suchasoutofpaper,fusererror,etc.Machine

doesnothaveabilitytocometoreadywithoutcustomerintervention.

1TonerLevelY oucanviewtheleveloftonerremainingineachtonercartridge.Themachine

andthenumberoftonercartridge(s)shownintheabovewindowmaydiffer
dependingonthemachineinuse.Somemachinesdonothavethisfeature.

2AlertSettingsSelectthesettingsyouwantfromtheoptionswindow.

3OrderSuppliesYoucanorderreplacementtonercartridge(s)fromonline.

4TroubleshootingY oucandirectlyopenthetroubleshootingsectionintheuser’sguide.

5CloseClosethewindow .

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-12

4.AlignmentandTroubleshooting

4.1.6.3.UsingSmartPanel(MacintoshandLinuxonly)

SmartPanelisaprogramthatmonitorsandinformsyouofthemachine’sstatus,andallowsyoutocustomizethemachine’s
settings.ForMacintosh,SmartPanelisinstalledautomaticallywhenyouinstallthemachinesoftware.ForLinux,you
candownloadSmartPanelfromtheSamsungwebsite.

NOTE

•TheSmartPanelwindowanditscontentsshowninthisuser’sguidemaydifferdependingonthemachineoroperating
systeminuse.

•Checktheoperatingsystem(s)thatarecompatiblewiththismodel.

SmartPaneloverview

Ifanerroroccurswhileoperating,youcanchecktheerrorfromtheSmartPanel.Y oucanalsolaunchSmartPanelmanually.

•Macintosh:ClickthisicontheSmartPanelicononthemenubar.

•Linux:Double-clicktheSmartPaneliconintheNoticationArea.

1TonerLevelYoucanviewtheleveloftonerremainingineachtonercartridge.Themachineandthe

numberoftonercartridge(s)shownintheabovewindowmaydifferdependingonthe
machineinuse.Somemachinesdonothavethisfeature.

2BuyNowY oucanorderreplacementtonercartridge(s)fromonline.

3User’sGuideYoucanviewtheonlineUser’sGuide.

NOTE

ThisbuttonopenstheTroubleshootingGuidewhenanerroroccurs.Youcandirectly

openthetroubleshootingsectionintheuser’sguide.

4PrinterSettingY oucancongurevariousmachinesettingsinthePrinterSettingsUtilitywindow.Some

machinesdonothavethisfeature

NOTE

Ifyouconnectyourmachinetoanetwork,theSyncThru™WebServicewindow

appearsinsteadofthePrinterSettingsUtility.

ChangingSmartPanel‘ssettings

Right-clickinLinuxontheSmartPaneliconandselectConguresmartpanel.Selectthesettingsyouwantfromthe
Conguresmartpanelwindow.

4-13Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

4.1.6.4.UsingSyncThruWebService(SWS)

SWSisanembeddedwebserverinthemachine.Thiswebserverinformsyouofmachineconguration,version,statusand
allowsyoutocustomizethemachine’ ssettings.Youcancontactthisserverviawiredandwirelessnetworkusingyour
webbrowserintheremoteplace.

Connectingpreparations

•WiredorWirelessNetworkconnectionisestablished.

•Browser(Ex>InternetExplorer)ProgramonyourPCnetworkconnected

SWSoverview

SyncThruW ebService(SWS)

•acceptsHTTPrequestviaport80asnormalwebservers.

•providesinterfacetousersinformationofnetworkedprintersandallowtocongurethesettingofprinters.

•isabletoprovidemorecomplicatedoptionsthanLocalUIforprinterconguration.

ConnectionProcedure

1)OpentheW eb-browserandinputIPaddressofmachine.Click“Login”.

2)Log-inAdminMode.(ID:admin,PW:sec00000)

3)Selectpagestocheckthecongurationandcustomizethesettings.

CAUTION

Please,changeSWSDefaultIDandPasswordforsystemsecurityincaseofyourrstconnection.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-14

4.AlignmentandTroubleshooting

NOTE

Ifthemachinesupports‘DirectPrint’,youcanenablethisfunctionusingtheSWSmenu.Thedefaultcongurationis
‘Disabled’foryoursecurity .

Firstly,youhavetologintoSWS.

1)Click‘DirectPrintConguration’inthepopupwindowswhenclicking‘DirectPrint’.

2)Inthe‘Services’Menu,check‘DirectPrint’.

Or,

1)Click‘SystemSecurity’inthe‘Security’menu.

2)Select‘FeatureManagement’intheleftframe.

3)Inthe‘Services’Menu,check‘DirectPrint’.

4-15Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

4.1.7.UpdatingFirmware

Thischapterincludesinstructionsforupdatingtheprinterrmware.Youcanupdatetheprinterrmwarebyusingone
ofthefollowingmethods:

•UpdatethermwarebyusingtheUSBport.

•UpdatethermwarebyusingtheNetwork.

4.1.7.1.UpdatethermwarebyusingtheUSBport

Upgradingpreparations

•usblist2.exe:T oolwhichsendsrmwaredatatoprinter .

•Firmwareletoupdate.

UpgradeProcedure

1)Turnthemachineoff.

2)ConnectUSBcabletoprinter .

3)Turnthemachineon.Checkiftheprinteristhereadystatus.

4)DragthermwareleandDropdownontheusblist2.exe.

Andthenrmwareupdatewillbestartedautomatically.

5)Whenupgradingiscompleted,machineisautomaticallyre-booting.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-16

4.AlignmentandTroubleshooting

4.1.7.2.Updatethermwarebyusingthenetwork

Upgradingpreparations

•WiredNetworkconnectionisestablished.

•Firmwareletoupdate

UpgradeProcedure

1)OpentheW eb-browserandinputIPaddressofmachine.Click“Login”.

2)Log-inAdminMode.(ID:admin,PW:sec00000)

3)SelectMaintenancemenuandclick“upgradewizard”

4-17Copyright©1995-2011SAMSUNG.Allrightsreserved.

4)Selectrmwareleusing“browser”buttonandpressnextbutton.

5)SyncThruwillcheckverifyrmwareleandcompareversionandpressnextbutton.

4.AlignmentandTroubleshooting

6)Machinestartsupgrading.SyncThruwillreturnhomepageafterupgradingiscompleted.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-18

4.AlignmentandTroubleshooting

4.1.8.TechMode

Inservice(tech)mode,thetechniciancancheckthemachineandperformvarioustesttoisolatethecauseofamalfunction.
WhileinTechmode,themachinestillperformsallnormaloperations.

a)EnteringTechmode

1)Press“Menu>#>1>9>3>4”onthecontrolpanelcontinuously.

2)PressMenu.

3)Select“T echMode”.

b)Techmodemenu

Depth1Depth2Depth3Depth4

Fuser

PickupRoller

CounterReset

MPTray

RetardRoller

DataSetup

TransferLevelLevel0~3

DensityLevelLevel0~3

TonerLowLevel[1~30]:10%*

Off*

PaperSubstitution

On

SuppliesInfoPrinting…

EventLogPrinting…

JobDutyReportPrinting…

Report

DensityReportPrinting…

FrameJIGPrinting…

UsageCounterPrinting…

103-Time

Tray1

Tray2

Tray1

Tray2

105-Duty

NVMReadWrite

EDCMode

4-19Copyright©1995-2011SAMSUNG.Allrightsreserved.

NVMInitializeInitializeNow

TestRoutines

106-Deve

107-Transfer

109-TempOffset

110-LDPower

100-Motor

101-Clutch

102-Sensor

105-MHVBias

106-DevBias

107-TransferBias

4.AlignmentandTroubleshooting

Depth1Depth2Depth3Depth4

109-FuserHeater EDCModeTestRoutines

112-ACR

c)DataSetup

•CounterReset

ThismenucanresetthecountsfortheFuserorPickuprollerorTransferroller.Whenreplacingtheseparts,you
mustdothismenu.

•TonerLowLevel

Thefunctionistosetupthetimetoinformtonerlowstatus.Thisfunctioncanprovideuserconvenienceforreplacing
thetonercartridge.

•PaperSubstitution

BetweenA4andLettersizepaper,printjobcanbeexecutedwithoutpapermismatchmessage,whenthesetting
valueis“On”.

d)Report

•SuppliesInfo

Itshowsconsumableunitlifestatusandtonerusingstatus.

•EventLog

Itshowsvariouskindsoferrorswhichcanbeoccurredinmachine.Italsostorehistoryerrorcounthowmanyerrorsare
issued.

•JobDutyReport

Itshowsprintingusagebyprintjobduty.

•DensityReport

Itshowsimagedensitycontrolhistory.

•UsageCounter

Itcontainsthetotalnumberofpagesprinted.

e)EDCmode

•NVRAMRead/Write

Thismenucanchangeacongurationvalueforenginermware.

CodeLCDMeaningDefaultMax/Min

109-00000000-ReadyTempT argetTemperatureduringstandbymode.100~15

109-00100010-PrintTempT argetTemperatureduringrunmode.50~10

•TestRoutines

Thismenucanperformtheoperationtestforthemaincomponents.

CodeLCDMeaning

100-0000MainBLDCMotorMainBLDCMotorisOn/OffOn[Off]Engine

100-0010MainBLDCMotorDetectifMainBLDCMotorrunsatnormalspeedReadyHigh[Low]Engine

100-0260SMPSFanRunStart/StopdeveloperfanrunOn[Off]Engine

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-20

State
Displayed

Related
Components

4.AlignmentandTroubleshooting

CodeLCDMeaning

101-0000BypassFeedClutch

EngagesdrivetopickupapaperfrombypassTray(MP
Tray).

State
Displayed

On[Off]Engine

101-0010T1Pick-UpClutchEngagesT1pickupclutchfromtray1.On[Off]Engine

101-0020T2Pick-UpClutchEngagesT2pickupclutchfromtray2.(Optional)On[Off]Engine

101-0050RegistrationClutchEngagesdrivetoregistartionroller.On[Off]Engine

101-0190Out-BinFullSensorDetectwhenapaperisatDuplexReadysensor.High[Low]Engine

102-0010

102-0080

102-0280

T1PaperEmpty
Sensor

T2PaperEmpty
Sensor

BypassPaperEmpty
Sensor

DetectwhenpaperisinTray1.High[Low]Engine

Detectwhenpaperisintray2.High[Low]Engine

DetectswhenpaperisinBypassTray(MPTray).High[Low]Engine

102-0290FeedSensorDetectwhenapaperisatFeedsensor.High[Low]Engine

102-0300

T2FeedSensor(or
DoorOpen)

DetectwhenapaperisatT2Feedsensor.(optional)High[Low]Engine

102-0360Regi.SensorDetectwhenapaperisatRegi.sensor.High[Low]Engine

102-0370ExitSensorDetectwhenapaperisatExit.sensor.High[Low]Engine

Related
Components

105-0030BlackMHVBiasBlackMHVbiasvoltageonatnormaldrivelevelOn[Off]Engine

106-0030BlackDevBiasBlackDevbiasvoltageonatnormaldrivelevelOn[Off]Engine

107-0030BlackTHVBiasBlackTHVbiasvoltageonatnormaldrivelevelOn[Off]Engine

107-0031BlackTHV(-)BiasBlackTHVbiasvoltageonatnormaldrivelevelOn[Off]Engine

107-0070BlackTHVBiasReadDetectwhattheTHVvalueisontheTHVRoller

109-0000FuserTemperatureADetectswhatthetemperatureAisonfuser.

Numeric
3digits

Numeric
3digits

109-0040FuserFanRunFuserFanMotorOn/OffOn[Off]Engine

109-0050FuserBiasFuserbiasvoltageonatnormaldrivelevelOn[Off]Engine

110-0000

LSUMotor1Run
Ready

DetectsifLSUmotor1runsatnormalspeed.High[Low]Engine

110-0060LSUMotor1RunLSUMotor1On/OffOn[Off]Engine

110-0110LSULDPower4LSULD4PowerOn/Off(black)On[Off]Engine

Engine

Engine

4-21Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

Power On

Red LED on /
Error message
is displayed.

OPE LED

Green OK?

Print (test page)

Printing

quality is

nomal?

Refer to "Solution

of Image Problem"

See the troubleshooting
for error code

END

- No Power

- Power Module error

- Main PBA

OPE LED

ON?

4.2.Troubleshooting

4.2.1.Procedureofcheckingthesymptoms

Beforeattemptingtorepairtheprinterrstobtainadetaileddescriptionoftheproblemfromthecustomer.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-22

4.AlignmentandTroubleshooting

4.2.1.1.BasicCheckList

1)CheckthePower.

•Checkthatthepowerswitchisturnedon.

•Checkthatthepowercableispluggedintotheoutletandtheprinter.

•Checkthevoltageofthepoweroutlet.

2)ChecktheLEDofPanel.

•IsthereOPELEDON?

›Ifnotcheckpowercable,switchSMPSorMainboard.

•IstheabnormalLamp?

›ChecktheMainboardandcableharness.

3)CheckthePaperPath

•IsthereaPaperJam?

›Removeanypaperfragmentscaughtinthepaperpath.

•PaperJamoccursrepeatedlyataspecicpointinthePaperPath

›Openthefusercover,Jamclear.

›Dismantlethemachineandcarefullyinspecttheregionwherethejamoccurs.

(Especially,checkifpaperfragmentsarecaughtintheFuser

4)PrinttheInformationPage(Conguration).

•Tryprintingatestpagefromacomputer.

›Ifthereisanerrorcheckcablesanddriverinstallation.

5)CheckthePrintQuality.

•IsthereareaPrintQualityProblem?

›Refertoimagequalityproblemsection.

6)Checkconsumables(toneretc.).

•UsingthekeysprinttheTestPattern.

›Expectedlifeofvariousconsumableparts,comparethiswiththeguresprintedandreplaceasrequired

4-23Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

4.2.2.ErrorCodeandTroubleshooting

MessagesappearontheSmartPanelprogramwindoworonthecontrolpaneltoindicatemachinestatusorerrors.Refer
tothetablesbelowtocorrecttheproblem.

ErrorCodeErrorMessageTroubleshootingpage

A1-1110Error#A1-1110:Turnoffthenon.Page4–25

C1-1110PreparenewcartridgePage4–26

C1-1120ReplacenewcartridgePage4–26

C1-1140ReplacenewcartridgePage4–26

C1-1411InstalltonerPage4–26

C1-1512NotCompatibleTonercartridge.Page4–27

H1-1210PaperjaminTray2.Page4–27

H1-1252PaperisemptyinTray2.Page4–27

M1-1110PaperJaminTray1.Page4–28

M1-1610PaperJaminMPtray.Page4–28

M1-5112Paperisemptyintray1.Page4–29

M1-5612PaperEmptyinMPTray.Page4–30

M2-1110PaperJaminsidemachine.Page4–31

M2-2110PaperJaminsidemachine.Page4–31

M2-2310PaperJambottomofduplex.Page4–32

M3-1110PaperJaminexitarea.Page4–32

M3-2130Outputbinfull.Removepaper.Page4–32

S2-4110Dooropen.Closeit.Page4–33

S6-3123NetworkProblem:IPConict.Page4–33

S6-3128802.1xNetworkError.Page4–34

U1-2320Error#U1-2320Turnoffthenon.Page4–34

U1-2330Error#U1-2330Turnoffthenon.Page4–34

U1-2340Error#U1-2340Turnoffthenon.Page4–34

U2-1111Error#U2-1111Turnoffthenon.Page4–35

U2-1113Error#U2-1113Turnoffthenon.Page4–35

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-24

4.AlignmentandTroubleshooting

►ErrorCode

A1–1110

►Errormessage

Error#A1-1110:Turnoffthenon.

►Symptom

HarnessorMainBLDCmotororMainboardisdefective./OPCcouplerinthetonercartridgehasoverloaded.

►Troubleshootingmethod

1)Turnthemachineoffthenon.Iftheerrorpersists,refertothefollowing.

2)Checkifthemotorconnectorisconnectedproperly.Reconnectit.

3)OPCcouplerhasoverloaded.Afterremovingthetonercartridge,rotatetheOPCcoupler.

Ifthereisanydamage,theOPCcouplercan’trotatewell.Replacethetonercartridge.

4)ThemainBLDCmotorisdefective.

a)Unplugtheconnectorfromthemotorcarefully.

b)ReplacethemainBLDCmotorwithnewone.

5)Iftheproblempersists,replacethemainboard.

4-25Copyright©1995-2011SAMSUNG.Allrightsreserved.

►ErrorCode

C1–1110

C1–1120

C1–1140

►Errormessage

Preparenewcartridge.

Replacenewcartridge.

Replacenewcartridge.

►Symptom

Theremainingtonercartridgeislessthan10%/Thetonercartridgeisattheendofitslife..

►Troubleshootingmethod

Printthesupplyinformationreport.
Checktheliferemainingofthetonercartridge.
Ifitslifeisattheend,turnthemachineoffandreplacethetonercartridgewithnewone.

4.AlignmentandTroubleshooting

►ErrorCode

C1-1411

►Errormessage

Installtoner.

►Symptom

Thetonercartridgeisnotinstalled.

►Troubleshootingmethod

1)Turnthemachineoffthenon.

2)Removethetonercartridge.Thoroughlyrollthecartridgeveorsixtimestodistributethetonerevenlyinsidethe
cartridge.Andreinstallthetonercartridge.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-26

4.AlignmentandTroubleshooting

►ErrorCode

C1-1512

►Errormessage

NotCompatibleTonercartridge.

►Symptom

Tonercartridgeisnotcompatible.

►Troubleshootingmethod

1)Printthesupplyinformationreport.Checkinformationofthetonercartridge.

2)IfthetonercartridgeisnotaSamsunggenuinetonercartridge,replacewithnewone.

►ErrorCode

H1-1210

►Errormessage

PaperjaminTray2.

►Symptom

Apaperjamwasdetectedinthefeedareaofthetray2.

►Troubleshootingmethod

1)Paperwasinsertedabnormallyorwasnotloadedinthecassetteproperly.

2)PickUpunithasaproblem.

►ErrorCode

H1-1252

►Errormessage

PaperisemptyinTray2.

►Symptom

Thereisnopaperinthetray2./Actuator-PaperEmptyorphotosensorisdefective.

►Troubleshootingmethod

1)Loadthepaperinthetray2.

2)IftheActuator-PaperEmptyisdefective,replaceit.

3)IfthePhotoSensorisdefective,replaceit.Checkiftheconnectorisconnectedproperly.

4)Iftheproblempersists,replacetheMainBoard.

4-27Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

►ErrorCode

M1-1110

►Errormessage

PaperJaminTray1.

►Symptom

Thejammedpaperhasoccurredinthetray1.

►Troubleshootingmethod

1)Clearthejammedpaper.Iftheproblempersists,checkthefollowing.

2)WhilepushingthePaperEmptySensor,sendtheprintingdata.Checkifthepickuprollerisrotatingnormally.

3)Checkifthereisanyobstaclesinthepaperpath(fromPick-UptoFeedSensor).Thefeedrollershouldbe
especiallychecked.

4)PrintouttheSuppliesInformation.ChecktheTray1RollerLifeandTray1TorqueLimiterLife.Ifthelifecameto
theend,replacetherelativeroller.

►ErrorCode

M1-1610

►Errormessage

PaperJaminMPtray .

►Symptom

ThejammedpaperhasoccurredintheMPtray.

►Troubleshootingmethod

1)Clearthejammedpaper.Iftheproblempersists,checkthefollowing.

2)WhilepushingthePaperEmptySensor,sendtheprintingdata.Checkifthepickuprollerisrotatingnormally.

3)Checkifthereisanyobstaclesinthepaperpath(fromPick-UptoFeedSensor).Thefeedrollershouldbe
especiallychecked.

4)PrintouttheSuppliesInformation.ChecktheTrayRollerLifeandTrayT orqueLimiterLife.Ifthelifecametothe
end,replacetherelativeroller.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-28

4.AlignmentandTroubleshooting

►ErrorCode

M1-5112

►Errormessage

Paperisemptyintray1.

►Symptom

Thereisnopaperinthetray1./Actuator-PaperEmptyorphotosensorisdefective.

►Troubleshootingmethod

1)Loadthepaperinthetray1.

2)IftheActuator-PaperEmptyisdefective,replaceit.

3)IfthePhotoSensorisdefective,replaceit.Checkiftheconnectorisconnectedproperly.

4)Iftheproblempersists,replacetheMainBoard.

4-29Copyright©1995-2011SAMSUNG.Allrightsreserved.

►ErrorCode

M1–5612

►Errormessage

PaperEmptyinMPTray.

►Symptom

ThereisnopaperintheMPtray./Actuator-PaperEmptyorphotosensorisdefective.

►Troubleshootingmethod

1)LoadthepaperintheMPtray.

2)IftheActuator-PaperEmptyisdefective,replaceit.

3)IfthePhotoSensorisdefective,replaceit.Checkiftheconnectorisconnectedproperly.

4.AlignmentandTroubleshooting

4)Iftheproblempersists,replacetheMainBoard.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-30

4.AlignmentandTroubleshooting

►ErrorCode

M2-1110

►Errormessage

PaperJaminsidemachine.

►Symptom

Apaperjamwasdetectedatthefeedsensor.

►Troubleshootingmethod

1)Removethejammedpaper.Iftheerrorpersists,checkthefollowings.

2)Checkifthefeedsensorconnectorisconnectedproperly.

3)CheckiftheRegirolleriscontaminatedorwornout.Ifyes,replaceit.

4)Checkifthereisanyobstaclesorcontaminationinthepaperpath.Ifyes,cleanorremoveit.

►ErrorCode

M2-2110

►Errormessage

PaperJaminsidemachine.

►Symptom

Apaperjamwasdetectedintheduplexarea.

►Troubleshootingmethod

1)Removethejammedpaper.

2)Removethecontaminationorobstaclesinthepaperpath.

3)Checkiftheduplexunitisinstalledproperly .

4-31Copyright©1995-2011SAMSUNG.Allrightsreserved.

►ErrorCode

M2-2310

►Errormessage

PaperJambottomofduplex.

►Symptom

Apaperjamwasdetectedinthebottomofduplex.

►Troubleshootingmethod

1)Removethejammedpaper.

2)Removethecontaminationorobstaclesinthepaperpath.

3)Adjustthepaperguideproperly.

4)Checkiftheexitsensorisassembledproperly.Reassembleit.

►ErrorCode

M3–1110

4.AlignmentandTroubleshooting

►Errormessage

PaperJaminexitarea.

►Symptom

Apaperjamwasdetectedintheexitarea.

►Troubleshootingmethod

1)Removethejammedpaper.

2)Checkifthereisanyobstaclesorcontaminationinthepaperpath.Ifyes,cleanorremoveit.

►ErrorCode

M3-2130

►Errormessage

Outputbinfull.Removepaper.

►Symptom

Themachinedetectedthattheoutputtrayhasgotfullorthebin-fullsensorisdefective.

►Troubleshootingmethod

1)Removethepaperontheoutputtray .

2)CheckiftheBin-fullSensorconnectorisconnectedproperly.ReconnectitorreplacetheBin-fullsensor.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-32

4.AlignmentandTroubleshooting

►ErrorCode

S2-4110

►Errormessage

Dooropen.Closeit.

►Symptom

Doorisopenorthecoveropenswitchisdefective.

►Troubleshootingmethod

1)Checkifthefrontdoorisclosedcorrectly .

2)Checkifthereardoorisclosedcorrectly .

3)CheckiftheconnectionbetweenthemainboardandHVPSboardiscorrect.

4)CheckifthecoveropenswitchonHVPSboardisoperatedproperly .Ifitisdefective,replacetheHVPSboard.

►ErrorCode

S6–3123

►Errormessage

NetworkProblem:IPConict.

►Symptom

IPaddressconictswiththatofothersystem./Thereisnoresponsewhencheckingthepingtest.

►Troubleshootingmethod

Changethemachine’sIPaddress.

•Set-uptheIPaddressinthisorder,Network->TCP/IP(IPv4)->STA TIC.

•IncaseofDHCPorBootp,rebootthemachinetoreceiveanewIPaddress.

4-33Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.AlignmentandTroubleshooting

►ErrorCode

S6–3128

►Errormessage

802.1xNetworkError.

►Symptom

Theconrmationwasrequestedforwiredport,theserverhasrejected./Theconrmationprotocolisnotthesameor
userinformation(ID/Password)iswrong.

►Troubleshootingmethod

Checkthesetting-upfor802.1xconrmationserver.

•Re-entertheserverinformationandconrmationprotocol.

•Re-entertheuserinformation.

►ErrorCode

U1–2320

U1–2330

U1–2340

►Errormessage

Error#U1-2320Turnoffthenon.

Error#U1-2330Turnoffthenon.

Error#U1-2340Turnoffthenon.

►Symptom

Thetemperaturecontroloffuserunitisabnormal.(U1–2320:OpenHeatError/U1–2330:LowHeatError/U1–2340
:OverHeatError)

►Troubleshootingmethod

1)Turnthemachineoff.Re-installthefuserunit.Thenturnthemachineon.Istheerrormessageisdisappeared?

2)Iftheproblempersists,turnthemachineoffandremovethefuserunit.

a)Checkifthefuserconnectorisconnectedproperly.

b)Checkiftheinputvoltageisnormal.

c)Checkifthethermistoristwistedorcontaminated.

3)Afterconrmingcontinuityinthefuserconnectorandtheproblemstillexists;orderanSMPS/HVPSandFuser
Unitandinstallasisnecessary .

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-34

4.AlignmentandTroubleshooting

►ErrorCode

U2-1111

U2-1113

►Errormessage

Error#U2-1111Turnoffthenon.

Error#U2-1113Turnoffthenon.

►Symptom

LSUMotordoesnotworknormally .

►Troubleshootingmethod

1)ExecutetheLSUmotortestinEDCmode.CheckLSUmotoroperationsound.

2)Ifthereisnosound,removetherightcover.CheckiftheLSUharnessisconnectedonthemainboardproperly.
(picture-1)

3)IfitisOK,removethetopcover.CheckiftheLSUharnessisconnectedonLSUboardproperly.(picture-2,3)

4)CheckiftheLSUharnessisdefective.(picture-4)

5)ReconnecttheLSUharnessandthenexecutetheLSUmotortestagain.

6)Iftheproblempersists,replacetheLSU.

7)IftheproblempersistsafterreplacingLSU,replacethemainboard.

4-35Copyright©1995-2011SAMSUNG.Allrightsreserved.

4.2.3.Imagequalityproblem

1)VerticalBlackLineandBand

Description:Straightthinblackverticallineoccursintheprintedimage.

CheckandcauseSolution

4.AlignmentandTroubleshooting

•Damageddeveloprollerinthetonercartridge.

DeformedDoctor-bladeorcleaning-blade.

•Scratchedsurfaceofthechargerollerinthetoner

cartridge.

Partlydepressionordeformationonthesurfaceofthe
transferroller.

2)VerticalWhiteLine

Description:Whiteverticalvoidsoccursintheprintedimage.

CheckandcauseSolution

Foreignmatterstucksontothewindowofinternallensesof
LSUmirror.

Replacethetonercartridge.

Replacethetransferroller.

CleantheLSUwindowwithrecommendedcleaner(IP A).
Cleanthewindowwithacleancottonswab.

ThelifeofthetonercartridgehasbeenexpiredReplacethetonercartridge.

Someforeignsubstancesareonthewindowofthetoner
cartridgeframe.

Ifthefuserisdefective,voidsoccurperiodicallyatthetop
ofablackimage.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-36

Removetheforeignmatteroftheexposurewindow.

Opentherearcover.Reinstallthefuserunit.

4.AlignmentandTroubleshooting

3)HorizontalBlackBand

Description:Darkofblurryhorizontalstripesoccurintheprintingperiodically.

CheckandcauseSolution

Badcontactsofthevoltageterminalstotonercartridge.CleaneachvoltageterminaloftheCharge,Developing,

tonercartridgeandTransferroller.(removethetoner
particlesandpaperparticles)

Therollersofdevelopermaybestained.

—OPCDrum=75.49mm

—ChargeRoller=26.7mm

—DevelopingRoller=36.78mm

4)BlackandWhitespot

Description:Darkorblurryblackspotsoccurperiodicallyintheprinting.

CheckandcauseSolution

Ifdarkorblurryblackspotsoccurperiodically,therollersin
thetonercartridgemaybecontaminatedwithforeignmatte
orpaperparticles.(Chargeroller:26.7mminterval/OPC
drum:75.49mminterval)

Replacethetonercartridge.

CleaneachvoltageterminaloftheCharge,Developing,
tonercartridgeandTransferroller.(removethetoner
particlesandpaperparticles)

Iffadedareasorvoidsoccurinablackimageatintervalsof

75.49mm,theOPCdrumsurfaceisdamaged.

Ifablackimageispartiallybroken,thetransfervoltageis
abnormalorthetransferroller’slifehasexpired.

Replacethetonercartridge.

•Ifthetransferroller’slifeisexpired,replaceit.

•Cleantheinsideofthesetagainstthepaperparticles

andforeignmatterinordernottocausethetrouble.

4-37Copyright©1995-2011SAMSUNG.Allrightsreserved.

5)Lightimage

Description:Theprintedimageislight,withnoghost.

CheckandcauseSolution

Tonercartridgelifeisexpired.Replacethetonercartridge.

HVPSterminaliscontaminated.Cleanthecontaminatedterminal.

TheoutputfromtheHVPSisabnormal.ReplacetheHVPSboard.

6)DarkorBlackpage

Description:Theprintedimageisdarkorblack.

4.AlignmentandTroubleshooting

CheckandcauseSolution

Checkifthehighvoltageterminaliscontaminated.Cleanthehighvoltageterminal.

Thechargingrollerisdefective.Replacethetonercartridge.

TheoutputfromtheHVPSisabnormal.ReplacetheHVPSboard.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-38

4.AlignmentandTroubleshooting

7)UnevenDensity

Description:Printdensityisunevenbetweenleftandright.

CheckandcauseSolution

•Thepressureforceontheleftandrightspringsofthe

transferrollerisnoteven.

•Thespringsaredamaged.

•Thetransferrollerisimproperlyinstalled.

Thetonerlevelisnotevenonthetonercartridgerollerdue
tothebadblade.

8)Background

Description:Lightdarkbackgroundappearsinwholeareaoftheprinting.

CheckandcauseSolution

Doesrecyclepaperbeused?Usetheproperpapers.

1)RemovethetransferrollerAssy.

2)CheckifthetransferrollerAssyhasanywrongpart.

3)ReplacethetransferrollerAssy.

Replacethetonercartridge.

ThelifeofthetonercartridgehasbeenexpiredReplacethetonercartridge.

TheoutputfromtheHVPSisabnormal.ReplacetheHVPSboard.

4-39Copyright©1995-2011SAMSUNG.Allrightsreserved.

9)Ghost

Description:Ghostoccursat75.49mmintervalsoftheOPCdrum.

CheckandcauseSolution

Thehighvoltageterminaliscontaminated.Cleanthehighvoltageterminals.

ThelifeofthetonercartridgehasbeenexpiredReplacethetonercartridge.

Thelifeofthetransferrollerhasbeenexpired.Replacethetransferroller.

10)Stainsonbackofpage

Description:Thebackofthepageisstained.

4.AlignmentandTroubleshooting

CheckandcauseSolution

Transferrolleriscontaminated.Replacethetransferroller.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-40

4.AlignmentandTroubleshooting

11)Blankpage

Description:Thebackofthepageisstained.

CheckandcauseSolution

Thegroundcontactofthetonercartridgeisbad.Cleanthegroundterminalofthetonercartridge.Ifthe

problempersists,replacethetonercartridge.

LSUisdefective.ReplacetheLSU.

TheconnectionbetweenthemainboardandHVPSboard
isbad.

Reconnecttheharness.IfthemainboardorHVPSboard
isdefective,replaceit.

12)Partialimagevoid

Description:Thepartialvoidoccursintheprintedpage.

CheckandcauseSolution

Theprinterisnotinstalledonatground.Installtheprinteronatground.Print10samplepagesfor

test.

Thedevelopercirculationinthetonercartridgeisbad.

1)Shakethetonercartridge2~3timesfromrighttoleft.
Reinstallthetonercartridge.Print10samplepages
fortest.

2)Iftheproblempersists,replacethetonercartridge.

Thecontactbetweentonercartridgeandtransferrolleris
bad.

4-41Copyright©1995-2011SAMSUNG.Allrightsreserved.

Checkifthetonercartridgeandtransferrollerareinstalled
properly.

4.AlignmentandTroubleshooting

4.2.4.Othererrors

1)Multi-feeding

•Description:Multiplesheetofpaperarefedatonce.

CheckandcauseSolution

PickclutchorRegiclutchdoesnotworkproperly.Replacethedefectiveclutchifnecessary.

Pickup/Forward/Retardrolleriswornoutorcontaminated.Cleanorreplacethedefectiveroller .

2)No-Power

•Description:Whensystempoweristurnedon,LEDandLCDontheoperatorpaneldonotcomeon.

CheckandcauseSolution

TheconnectionbetweenmainboardandOPEboardisbad.Reconnectorreplacetheharness.

HVPS/SMPSoutputisabnormal.ReplacetheHVPS/SMPSboard.

Copyright©1995-2011SAMSUNG.Allrightsreserved.4-42

5.SystemDiagram

MAIN

C3 N

53 3MHz

FUSE R Unit

Therm oSta t

Therm istor1

Exit

Se nso r

Reg i

Clutch

Pickup
Clutch

Front
Cove r
Micro

Switch

24V

5V_S MPS

FUSE R ON

Rela y

24VS

3.3 V

3.3V_C over_O pen 1

3.3V_C over_O pen3 .3V

DEVELOPE R Unit

FAN

MAIN

FAN

SMP S

OPC MHV

DEV

Sup ply

THV

Varistor

T

D

S

DRUM

M

Main

Motor

MT

BLDC

Se rial Flas h

16MB

DDR3 1 DIMM PB A

Defa ult x1 6 128 MB(1Gb 1e a)

Op tion x16 5 12MB(2Gb*2e a)

EEP ROM(I2C C H0)

EEP ROM

24C5 12(S ys+NW)

SP I

000

000

00

000

00

00

00

00

00

00

00

00

000

000

000

00

00

SOL

C
R
U
M

0000

RTL821 1E
Giga _PHY

25MHz

FUSE R

BIAS

INLET

MP

Clutch

Pa per

Size /Binful

Se nso r

Clock

Gen era tor

ASM3P2 863A

12MHz

MAINCLK

USB CLK

REF

0

USB 2. 0

Device

INLET

FUSER

SOL

HVP S

SMPS

24VS

EMPTY

Se nso r

REGI

Se nso r

MP

Se nso r

FEED

Se nso r

LSU MOTOR

Lase r Diod(Dua l Bea m)

UART

Option

SCF

ECO

Can cel

Powe r

Sta tus_ LED

EC

O

C
anc e

l

Na
vi

_K
E

Y

LCD

Rela y

S YSTE M RAM

SO_ DIMM Con .

20 4p in

Eras er

LED

SOL

5V

Usb

USB/P ara llel

0

DC-DC 3CH

5V to 3.3V,1. 5V,1. 2V

2 Lin e LC D

I2C

3.3 V/1.2V

1.5 V

Rea r Cove r

Micro Switch

PANEL

LSU

ua rt

Option

PARALLEL

(Para llel to USB)

DIMM_P BA

00

LDO

5V to 1.8V

1.8 V

5.SystemDiagram

5.1.BlockDiagram

5-1Copyright©1995-201 1SAMSUNG.Allrightsreserved.

5.2.ConnectionDiagram

MAIN

FUS ER Unit

Therm oSta t

Therm istor1

Pa perE xit

Se nso r

Re gi

Clutch

Picku p
Clutch

Fron t

Cove r

Micro

Switch

24 V

5V_S MPS

FUS ER ON

Re lay

24 VS

3.3 V

3.3V_C over_ Open 1

3.3V_C over_ Open3. 3V

DEVELOP ER Unit

FAN

MAIN

FAN

S MPS

OP C MHV

DEV

Su pply

THV

Varistor

T

D

S

DRUM

M

Main

Motor

MT

BLDC

S e rial Fla s h

16M

0

000

000

000

00

00

00

0

0

00

00

00

0

000

000

000

00

SOL

C
R
U
M

RTL8211E
Giga _PHY

25MHz

FUS ER

BIAS

INLET

MP

Clutch

Pa per

Size /Binful

Se nso r

Clock

Ge nera tor

ASM3P 2863A

12 MHz

MAIN CLK

USB CLK

REF C LK

INLET

FUSER

THERM_1

1

2

CN6(2mm)

THERM

MOT_DIR

PWM_MOT

MOT_R

E

ADY

MOT_EN

GND

MOT_BREAK

GND

GND

24VS

24VS

24VS

Pickup _CLT

24VS

Reg i_CLT

123

45678

9

10

111213

14

CN22(2mm )

MAINMOTOR/CLUTCH

SOL

3.3V

GND

PEAP ER_EXIT

123

CN23(2mm )

P_EXIT
SENSO R

VBUS
DM
DP
GND

1
2
3
4

CN14

USB_IF

MX0P
MX0N
MX1P
MX2P
MX2N
MX1N
MX3P
MX3N

3.3V
LED1

3.3V
LED0

1
2
3
4
5
6
7
8

9
10
11
12

CN11

NETWORK_IF

GND5VnKEY_PO WER_S W

RXD

nRS T

TXD

CN1

(1.5mm )

12345

6

3.3V_LSU

nHsyn c

GND

VDO_1_P

VDO_1_N

GND

nSH_ 1

nSH_ 2

GND

VDO_2_P

VDO_2_N

GND

nLD_ON

L

D_PO WER

N.C

CLK_LSU_MOT

nREADY_LSU

nLSU_MOT_ EN

GND

24VS

123456789

1011121314151617181920

CN7(F FC 1m m)

LSU_IF

HVPS

123456789

101112

13

1

4

151617

18

1

9

20

123456789

10

24VS
GND
THV_READ
nTHV_EN
PWM_THV
PWM_DEV_DC
PWM_MHV
PWM_FUS ER_BIAS
GND
GND

3.3V

3.3V_Co ver_O pen

1

2

3
4
5
6
7
8

9
10
11
12

CN13

(2mm )

HVPS

5V_SMP S
GND
24V
GND

1

2

3

4

CN13

(3.96

mm

)

SMPS

SMPS

3.3V_S MPS
GND

24V

GND

1

2

3
4

CN

SMPS

GND

24V OFF

Rela y

24VS

Fus er ON

1

2

3
4
5

CN

SMPS

GND
24V OFF
Rela y

24VS

Fus er ON

5
4
3
2
1

C
N15

(2mm )

SMPS

24VS

GND
GND
24VS

1

2

3

CN12

(2mm)

MAINFAN

24VS
GND

1

2

CN21

(2mm )

SMPS FAN

12
11
10

9
8
7
6
5
4
3
2
1

GND
CLK
DIO

3.3V_CR UM

1

2

3
4

CN5

(2mm)

C
R
UM

EMPTY

Se nso r

REG I

Se nso r

MP

Se nso r

3.3VS

GND

P_E mpty

SENS

3

.

3

VS

GND

REGI_S ENS

3

.

3

VS

GND

FEED_ SENS

1

2345678

9

CN4(2mm)

SENSO R

24VS

MP_CLT

3.3VS

GND

MP_S ENS

12345

CN10
(2mm)

MP

FEE D

Se nso r

3,3V

GND

Outbin_ full

3.3V_C_ OPE N1

3.3V_C_ OPE N2

1

2

3
4
5

CN8(1.5m m)

Cover O

p

en/outb in full

24VS
GND
THV_READ
nTHV_EN
PWM_THV
PWM_DEV_DC
PWM_MHV
PWM_FUS ER_BIAS
GND
GND

3.3VS

3.3V_Co ver_O pen

CN24 (1 .5mm)

SCF _IF

3.3V_LSU

nHsyn c

GND

VDO_1_P

VDO_1_N

GND

nSH_ 1

nSH_ 2

GND

VDO_2_P

VDO_2_N

GND

nLD_ON

LD

_

POWE R

N.C

CLK_LSU_MOT

nREADY_LSU

nLSU_MOT_ EN

GN

D

24VS

LSU

(Dua l Be am)

24V
24V
24V

3.3V

3.3V

3.3V
nRS T_SCF
SCF _TXD
SCF _RXD
N.C
nSC F_OP T
N.C
N.C
GND
GND
GND
GND
GND

1

2

3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18

OPTION

SCF

ECO

Ca ncel

Po wer

Sta tus_ LED

65432

1

E

CO

Ca n

ce
l

Po wer

Sta tus_

L
ED

Na
vi

_K
E

Y

LCD

Re lay

5V

Eras er_LED

1

2

CN9

(1.5mm)

Erase r

SOL

5V
N.C
GND
5V

1
2
3
4

CN16

DC JACK

5V

Us b

C3 N

53 3 MHz

0

US B 2 .0

De vice

EEPROM

24C 512(S ys+NW)

Era ser

LED

Option

PARALLEL

(Pa rallel to US B)

2 Lin e LC D

PANEL

AIR_TEMP

1

2

CN18

(1.5mm)

SET_Te mp

Re ar Co ver

Micro Switch

DDR3 1 DIMM P BA

De fa u lt x1 6 1 28MB

Op tion x16 5 12 MB

CN 1 7

SO_

DIMM

204p in

DIMM_PBA

5.SystemDiagram

Copyright©1995-2011SAMSUNG.Allrightsreserved.5-2

6.ReferenceInformation

6.ReferenceInformation

Thischaptercontainsthetoolslist,listofabbreviationsusedinthismanual,andaguidetothelocationspacerequiredwhen
installingtheprinter.AdenitionoftestpagesandWirelessNetworkinformationdenitionisalsoincluded.

6.1.ToolforTroubleshooting

Thefollowingtoolsarerecommendedsafeandeasytroubleshootingasdescribedinthisservicemanual.

DVM(DigitalVoltMeter)

Standard:Indicatesmorethan3digits.

Driver

Standard:“-”type,“+”type(M3long,M3short,M2long,
M2short).

Tweezers

Standard:Forgeneralhomeuse,smalltype.

CleaningEquipments

Standard:AnIPA(IsopropylAlcohol)drywipetissueora
gentleneutraldetergentandlint-freecloth.

VacuumCleaner

SpringHook

Standard:Forgeneraluse

CottonSwab

Standard:Forgeneralhomeuse,formedicalservice.

6-1Copyright©1995-2011SAMSUNG.Allrightsreserved.

Software(Driver)installationCDROM

6.ReferenceInformation

6.2.Glossary

Thefollowingglossaryhelpsyougetfamiliarwiththeproductbyunderstandingtheterminologiescommonlyusedwith
printingaswellasmentionedinthisuser’sguideandservicemanual.

802.11

802.11b/g/n

Accesspoint

ADF

AppleTalk

BITDepth

BMP

BOOTP

802.11isasetofstandardsforwirelesslocalareanetwork(WLAN)communication,developedby
theIEEELAN/MANStandardsCommittee(IEEE802).

802.11b/g/ncansharesamehardwareandusethe2.4GHzband.802.11bsupportsbandwidthupto11
Mbps,802.11nsupportsbandwidthupto150Mbps.802.11b/g/ndevicesmayoccasionallysuffer
interferencefrommicrowaveovens,cordlesstelephones,andBluetoothdevices.

AccessPointorWirelessAccessPoint(APorW AP)isadevicethatconnectswirelesscommunication
devicestogetheronwirelesslocalareanetworks(WLAN),andactsasacentraltransmitterand
receiverofWLANradiosignals.

AnAutomaticDocumentFeeder(ADF)isascanningunitthatwillautomaticallyfeedanoriginal
sheetofpapersothatthemachinecanscansomeamountofthepaperatonce.

AppleTalkisaproprietarysuiteofprotocolsdevelopedbyApple,Incforcomputernetworking.It
wasincludedintheoriginalMacintosh(1984)andisnowdeprecatedbyAppleinfavorofTCP/IP
networking.

Acomputergraphicstermdescribingthenumberofbitsusedtorepresentthecolorofasinglepixelin
abitmappedimage.Highercolordepthgivesabroaderrangeofdistinctcolors.Asthenumberofbits
increases,thenumberofpossiblecolorsbecomesimpracticallylargeforacolormap.1-bitcoloris
commonlycalledasmonochromeorblackandwhite.

AbitmappedgraphicsformatusedinternallybytheMicrosoftWindowsgraphicssubsystem(GDI),
andusedcommonlyasasimplegraphicsleformatonthatplatform.

BootstrapProtocol.AnetworkprotocolusedbyanetworkclienttoobtainitsIPaddressautomatically .
Thisisusuallydoneinthebootstrapprocessofcomputersoroperatingsystemsrunningonthem.The
BOOTPserversassigntheIPaddressfromapoolofaddressestoeachclient.BOOTPenables'diskless
workstation'computerstoobtainanIPaddresspriortoloadinganyadvancedoperatingsystem.

CCD

Collation

ControlPanel

Coverage

CSV

DADF

DefaultThevalueorsettingthatisineffectwhentakingaprinteroutofitsboxstate,reset,orinitialized.

DHCP

DIMM

ChargeCoupledDevice(CCD)isahardwarewhichenablesthescanjob.CCDLockingmechanismis
alsousedtoholdtheCCDmoduletopreventanydamagewhenyoumovethemachine.

Collationisaprocessofprintingamultiple-copyjobinsets.Whencollationisselected,thedevice
printsanentiresetbeforeprintingadditionalcopies.

Acontrolpanelisaat,typicallyvertical,areawherecontrolormonitoringinstrumentsaredisplayed.
Theyaretypicallyfoundinfrontofthemachine.

Itistheprintingtermusedforatonerusagemeasurementonprinting.Forexample,5%coverage
meansthatanA4sidedpaperhasabout5%imageortextonit.So,ifthepaperororiginalhas
complicatedimagesorlotsoftextonit,thecoveragewillbehigherandatthesametime,atoner
usagewillbeasmuchasthecoverage.

CommaSeparatedValues(CSV).Atypeofleformat,CSVisusedtoexchangedatabetween
disparateapplications.Theleformat,asitisusedinMicrosoftExcel,hasbecomeadefactostandard
throughouttheindustry,evenamongnon-Microsoftplatforms.

ADuplexAutomaticDocumentFeeder(DADF)isascanningunitthatwillautomaticallyfeedand
turnoveranoriginalsheetofpapersothatthemachinecanscanonbothsidesofthepaper.

ADynamicHostCongurationProtocol(DHCP)isaclient-servernetworkingprotocol.ADHCP
serverprovidescongurationparametersspecictotheDHCPclienthostrequesting,generally,
informationrequiredbytheclienthosttoparticipateonanIPnetwork.DHCPalsoprovidesa
mechanismforallocationofIPaddressestoclienthosts.

DualInlineMemoryModule(DIMM),asmallcircuitboardthatholdsmemory.DIMMstoresall
thedatawithinthemachinelikeprintingdata,receivedfaxdata.

Copyright©1995-2011SAMSUNG.Allrightsreserved.6-2

6.ReferenceInformation

DLNA

DNS

DotMatrixPrinter

DPI

DRPD

Duplex

DutyCycle

ECM

TheDigitalLivingNetworkAlliance(DLNA)isastandardthatallowsdevicesonahomenetworkto
shareinformationwitheachotheracrossthenetwork.

TheDomainNameServer(DNS)isasystemthatstoresinformationassociatedwithdomainnamesin
adistributeddatabaseonnetworks,suchastheInternet.

Adotmatrixprinterreferstoatypeofcomputerprinterwithaprintheadthatrunsbackandforth
onthepageandprintsbyimpact,strikinganink-soakedclothribbonagainstthepaper,muchlikea
typewriter.

DotsPerInch(DPI)isameasurementofresolutionthatisusedforscanningandprinting.Generally ,
higherDPIresultsinahigherresolution,morevisibledetailintheimage,andalargerlesize.

DistinctiveRingPatternDetection.DistinctiveRingisatelephonecompanyservicewhichenablesa
usertouseasingletelephonelinetoanswerseveraldifferenttelephonenumbers.

Amechanismthatwillautomaticallyturnoverasheetofpapersothatthemachinecanprint(or
scan)onbothsidesofthepaper .AprinterequippedwithaDuplexUnitcanprintonbothsidesof
paperduringoneprintcycle.

Dutycycleisthepagequantitywhichdoesnotaffectprinterperformanceforamonth.Generallythe
printerhasthelifespanlimitationsuchaspagesperyear.Thelifespanmeanstheaveragecapacity
ofprint-outs,usuallywithinthewarrantyperiod.Forexample,ifthedutycycleis48,000pagesper
monthassuming20workingdays,aprinterlimits2,400pagesaday.

ErrorCorrectionMode(ECM)isanoptionaltransmissionmodebuiltintoClass1faxmachines
orfaxmodems.Itautomaticallydetectsandcorrectserrorsinthefaxtransmissionprocessthat
aresometimescausedbytelephonelinenoise.

Emulation

Ethernet

EtherTalk

FDI

FTP

FuserUnit

Gateway

Emulationisatechniqueofonemachineobtainingthesameresultsasanother.Anemulator
duplicatesthefunctionsofonesystemwithadifferentsystem,sothatthesecondsystembehaveslike
therstsystem.Emulationfocusesonexactreproductionofexternalbehavior,whichisincontrast
tosimulation,whichconcernsanabstractmodelofthesystembeingsimulated,oftenconsidering
itsinternalstate.

Ethernetisaframe-basedcomputernetworkingtechnologyforlocalareanetworks(LANs).Itdenes
wiringandsignalingforthephysicallayer,andframeformatsandprotocolsforthemediaaccess
control(MAC)/datalinklayeroftheOSImodel.EthernetismostlystandardizedasIEEE802.3.It
hasbecomethemostwidespreadLANtechnologyinuseduringthe1990stothepresent.

AsuiteofprotocolsdevelopedbyAppleComputerforcomputernetworking.Itwasincludedinthe
originalMacintosh(1984)andisnowdeprecatedbyAppleinfavorofTCP/IPnetworking.

ForeignDeviceInterface(FDI)isacardinstalledinsidethemachinetoallowathirdpartydevice
suchasacoinoperateddeviceoracardreader.Thosedevicesallowthepay-for-printservice
onyourmachine.

AFileTransferProtocol(FTP)isacommonlyusedprotocolforexchanginglesoveranynetwork
thatsupportstheTCP/IPprotocol(suchastheInternetoranintranet).

Thepartofalaserprinterthatfusesthetonerontotheprintmedia.Itconsistsofaheatrollerand
apressureroller.Aftertoneristransferredontothepaper,thefuserunitappliesheatandpressure
toensurethatthetonerstaysonthepaperpermanently,whichiswhypaperiswarmwhenitcomes
outofalaserprinter.

Aconnectionbetweencomputernetworks,orbetweenacomputernetworkandatelephoneline.Itis
verypopular,asitisacomputeroranetworkthatallowsaccesstoanothercomputerornetwork.

Grayscale

Halftone

HDD

6-3Copyright©1995-2011SAMSUNG.Allrightsreserved.

Ashadesofgraythatrepresentlightanddarkportionsofanimagewhencolorimagesareconverted
tograyscale;colorsarerepresentedbyvariousshadesofgray .

Animagetypethatsimulatesgrayscalebyvaryingthenumberofdots.Highlycoloredareasconsistof
alargenumberofdots,whilelighterareasconsistofasmallernumberofdots.

HardDiskDrive(HDD),commonlyreferredtoasaharddriveorharddisk,isanon-volatilestorage
devicewhichstoresdigitally-encodeddataonrapidlyrotatingplatterswithmagneticsurfaces.