Samsung SF-760P, SF-761, SF-761P Service Manual

MonoLaserMFP

SF-76xseries SF-760P/761/761P

MANUAL

SERVICE

MonoLaserMFP

1.Precautions

2.Productspecandfeature

3.DisassemblyandReassembly

4.AlignmentandTroubleshooting

5.SystemDiagram

6.ReferenceInformation

Contents

RefertotheservicemanualintheGSPN(seetherearcover)formoreinformation.

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.Productspecandfeature.....................................................................................................................2−1

2.1.ProductSpecication................................................................................................................2−1

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

2.1.1.1.GeneralPrintEngine......................................................................................2−1

2.1.1.2.Copier.........................................................................................................2−2

2.1.1.3.ScanSpecication.........................................................................................2−3

2.1.1.4.Fax.............................................................................................................2−4

2.1.1.5.ControllerandSoftware..................................................................................2−5

2.1.1.6.PaperHandling.............................................................................................2−6

2.1.1.7.Consumables................................................................................................2−6

2.1.1.8.MaintenanceParts.........................................................................................2−7

2.1.1.9.ReliabilityandService...................................................................................2−7

2.1.1.10.Environment................................................................................................2−7

2.1.1.11.Accessories..................................................................................................2−8

2.1.2.ModelComparisonT able..............................................................................................2−9

2.2.SystemOverview.....................................................................................................................2−10

2.2.1.FrontView.................................................................................................................2−10

2.2.2.RearView..................................................................................................................2−11

2.2.3.PaperPath..................................................................................................................2−12

2.2.4.SystemLayout............................................................................................................2−13

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

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

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

2.2.4.4.FuserUnit....................................................................................................2−17

2.2.4.5.LSU(LaserScannerUnit)...............................................................................2−19

2.2.4.6.TonerCartridge.............................................................................................2−20

2.2.5.Hardwareconguration................................................................................................2−21

2.2.5.1.Mainboard..................................................................................................2−22

2.2.5.2.OPEboard...................................................................................................2−24

Contents

2.2.5.3.Faxboard....................................................................................................2−25

2.2.5.4.SMPS/HVPSboard.......................................................................................2−26

2.2.5.5.ElectricalPartsLocation.................................................................................2−28

2.2.6.EngineF/WContolAlgorithm.......................................................................................2−30

2.2.6.1.Feeding.......................................................................................................2−30

2.2.6.2.Transfer.......................................................................................................2−30

2.2.6.3.Fusing.........................................................................................................2−31

2.2.6.4.LSU............................................................................................................2−31

2.2.7.SoftwareDescriptions..................................................................................................2−32

2.2.7.1.Softwaresystemoverview..............................................................................2−32

2.2.7.2.Architecture.................................................................................................2−32

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.ADFFrame................................................................................................................3−4

3.3.2.Stacker......................................................................................................................3−6

3.3.3.Whiteroller................................................................................................................3−6

3.3.4.OPEboard.................................................................................................................3−7

3.3.5.ADFroller.................................................................................................................3−8

3.3.6.CISunit.....................................................................................................................3−9

3.3.7.Mainboard.................................................................................................................3−9

3.3.8.Faxboard...................................................................................................................3−10

3.3.9.LeftCover..................................................................................................................3−10

3.3.10.Frontcover.................................................................................................................3−11

3.3.11.Middlecover..............................................................................................................3−12

3.3.12.Rearcover..................................................................................................................3−13

3.3.13.SMPS/HVPSboard......................................................................................................3−13

3.3.14.Fuserunit...................................................................................................................3−14

3.3.15.DriveUnit..................................................................................................................3−14

3.3.16.LSU..........................................................................................................................3−15

3.3.17.FeedSensorPBA........................................................................................................3−16

3.3.18.Pickuproller..............................................................................................................3−16

3.3.19.Motor........................................................................................................................3−17

3.3.20.Transferroller.............................................................................................................3−18

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

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

Contents

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

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

4.1.3.JAMremoval..............................................................................................................4−4

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

4.1.5.PeriodicDefectiveImage..............................................................................................4−8

4.1.6.Usefulmanagementtools..............................................................................................4−9

4.1.6.1.UsingSamsungEasyPrinterManager(WindowsandMacintoshonly)....................4−9

4.1.6.2.UsingSamsungPrinterStatus(Windowsonly)...................................................4−11

4.1.6.3.UsingSmartPanel(Linuxonly).......................................................................4−12

4.1.7.UpdatingFirmware......................................................................................................4−13

4.1.8.Techmode.................................................................................................................4−14

4.2.Troubleshooting......................................................................................................................4−18

4.2.1.Procedureofcheckingthesymptoms...............................................................................4−18

4.2.1.1.BasicCheckList...........................................................................................4−19

4.2.2.ErrorCodeandTroubleshooting.....................................................................................4−20

4.2.3.Imagequalityproblem..................................................................................................4−27

4.2.4.Othererrors................................................................................................................4−32

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

1.Precautions

Inordertopreventaccidentsanddamagestotheequipmentpleasereadtheprecautionslistedbelowcarefullybefore servicingtheproductandfollowthemclosely.

1.1.Safetywarning

1)Onlytobeservicedbyafactorytrainedservicetechnician.

Highvoltagesandlasersinsidethisproductaredangerous.Thisproductshouldonlybeservicedbyafactorytrained servicetechnician.

2)UseonlySamsungreplacementparts.

Therearenouserserviceablepartsinsidetheproduct.Donotmakeanyunauthorizedchangesoradditionstothe productasthesecouldcausetheproducttomalfunctionsandcreateanelectricshocksorrehazards.

3)LaserSafetyStatement

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

1.Precautions

•Wavelength:Max.800nm(785-10/+15)

•Beamdivergence

-Paraller:Max.13degrees(10-4/+3)

-Perpendicular:Max.35degrees(31-6/+4)

•Maximumpowerofenergyoutput:12mW

WARNING

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

Whenusingthisproduct,thesebasicsafetyprecautionsshouldalwaysbefollowedtoreduceriskofre,electricshock, andpersonalinjury.

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.Takecarenottocutordamagethepowercableorplugswhenmovingthemachine.

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.

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

•TakecarenottoscratchthegreensurfaceofOPCDrumUnit.IfthegreensurfaceoftheDrumCartridgeis scratchedortouchedtheprintqualitywillbecompromised.

1.Precautions

1.2.5.Disregardingthiswarningmaycausebodilyinjury

1)Becarefulwiththehightemperaturepart.

Thefuserunitworksatahightemperature.Usecautionwhenworkingontheprinter.W aitforthefuserunitto 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.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.

2.Productspecandfeature

2.1.ProductSpecication

2.1.1.ProductOverview

1)Speed

•Upto20ppminA4(21ppminLetter)

2)PrintingResolution

•Upto600x600dpi

3)Processor

•433MHz

4)PrinterLanguageEmulation

•SPL

5)Memory

•64MB

6)Interface

•HighspeedUSB2.0

7)Tonercartridge

•Initial:0.7K

•Sales:1.5K

2.1.1.1.GeneralPrintEngine

ItemSpecication

EngineSpeed

WarmuptimeFromSleepLessthan30seconds

FPOT

ResolutionUpto1,200x1,200dpieffectiveoutput

SimplexUpto20ppminA4(21ppminLetter)

DuplexManualDuplex

FromReadyLessthan8.5seconds

FromSleepLessthan15.5seconds

2.1.1.2.Copier

ItemSpecication

CopySpeedSimplextoSimplexUpto20ppminA4(21ppminLetter)

FCOT(B&W)FromReadyLessthan14seconds(fromplaten)

Text•Scan:600x300dpi,Printing:600x600dpi@ADF

Text/Photo•Scan:600x300dpi,Printing:600x600dpi@ADF CopyResolution

Photo•Scan:600x600dpi,Printing:600x600dpi@ADF

OriginalTypeFactoryDefaultText/Photo

2.Productspecandfeature

Max.Original size

BasicCopy

ADFLegal(8.5"x14")

MultiCopy1~99

AutomaticPaperSelectionNo

ManualPaperSelectionNo

DuplexCopyNo

DarknessControl11Levels

Reduce&Enlarge25%to400%

2.Productspecandfeature

2.1.1.3.ScanSpecication

ItemSpecication

ScanMethodColorCIS

CompatibilityTWAIN,WIA

Linearity,Halftone15seconADF@300dpi

ScanSpeed

Resolution

ScanSize

ScanDepth

Gray26seconADF@300dpi

Color

Optical600x600dpi

Enhanced4,800x4,800dpi

Max.DocumentWidthMax.216mm(8.5")

EffectiveScanWidthMax.208mm(8.2")

Max.DocumentLength356mm(14")

EffectiveScanLength348mm(13.7")

ColorInternal:16bitx3,External:8bitx3

Mono

•256Color300dpi:70seconADF

•TrueColor300dpi:70seconADF

•1bitforLineart&Halftone

•8bitsforGrayscale

2.Productspecandfeature

2.1.1.4.Fax

ItemSpecication

CompatibilityITU-TG3,ECM

CommunicationSystemPSTN/PABX

ModemSpeed33.6Kbps

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

CompressionMH/MR/MMR/JBIG/JPEG(TxOnly)

ColorFaxYes(Txonly)

ECMYes

Std203x98dpi

Resolution

(Mono)

Fine203x196dpi

S.Fine300x300dpi

HandsetYes(ChinaOnly)

OnhookDialYes

SearchYes(PhoneBook)

SpeedDial200locations

GroupDial100Groups

Telephone

Features

TADI/FYes

Tone/PulseY es

PauseYes

AutoRedialYes

LastNumberRedialYes

CallerIDYes

ExternalPhoneInterfaceYes

2.Productspecandfeature

2.1.1.5.ControllerandSoftware

ItemSpecication

Processor433MHz

Memory

PrinterLanguagesSPL

FontsWindowsFonts

PrintDriver

Std.64MB

Max.64MB

DefaultDriverSPL

InstallSPL

SupportingOS

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

Linux

•RedHatEnterpriseLinuxWS4,5(32/64bit)

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

•SuSELinux10.1(32bit)

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

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

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

•SuSELinuxEnterpriseDesktop10,11(32/64bit)

•Debian4.0,5.0(32/64bit)

10.04(32/64bit)

MacOSX10.4~10.7

Windows2000/XP(32/64bits)/Vista(32/64bits)/2003

WHQL

Compatibility

TWAINYes

WIAYes

ScanDriver

SupportingOS

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

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

Linux

•RedHatEnterpriseLinuxWS4,5(32/64bit)

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

•SuSELinux10.1(32bit)

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

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

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

10.04(32/64bit)

•SuSELinuxEnterpriseDesktop10,11(32/64bit)

•Debian4.0,5.0(32/64bit)

MacOSX10.4~10.7

ItemSpecication

WiredNetworkN/A

WirelessNetworkN/A

2.Productspecandfeature

Application

Interface

SamsungEasyPrinter Manager

ParallelN/A

USBHighspeedUSB2.0

Yes

2.1.1.6.PaperHandling

ItemSpecication

StandardCapacity150-sheetMultiPurposeTray@80g/m²

Max.Capacity150-sheet@80g/m²

Printing

StandardCassetteTrayN/A

Multi-purposeTray (Bintype)

Max.Size216x356mm(8.5"x14.02")

Min.Size76x183mm(3.0"x7.2")

Capacity

Mediasizes

Mediatype

•PlainPaper:150sheets@80g/m²

•Envelop:1sheet@80g/m²

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

Plain,Thin,Cotton,Recycled,Archive,Colored,Pre-Printed,Label,Bond, Thick,Envelopes,Cardstock

Mediaweight16~43lb(60to163g/m²)

SensingN/A

OptionalCassetteTrayN/A

OutputStacking

DuplexSupportingN/A

PrintableAreaNon-PrintableArea3mm(0.12")fromedge(Top,Bottom,Left,Right)

CapacityFace-Down:100sheets@80g/m²

OutputFullsensingN/A

2.1.1.7.Consumables

ItemSpecication

PartnameMLT -D101S TonerCartridge

Averageyield•AverageCartridgeYield1,500standardpages

(Shipswith700pagesStarterTonerCartridge)

NOTE

DeclaredyieldvalueinaccordancewithISO/IEC19752.

2.Productspecandfeature

NOTE

Dependingontheoptions,percentageofimagearea,andjobmodeused,thetonercartridge’slifespanmaydiffer.

2.1.1.8.MaintenanceParts

ItemPartCodeLife*

FuserUnit•JC91–01075A(220V)

•JC91–01074A(110V)

TransferRollerJC66–02709A30,000Pages

Pick-UpRollerAssyJC93–00525A30,000Pages

FrictionPadJC93–00522A30,000Pages

ADFFeedrollerJB97-01620A20,000Pages

ADFRubberpadJB73-00100A20,000Pages

WhiterollerJB97-01207A30,000Pages

NOTE

*Itwillbeaffectedbytheoperatingsystemused,computingperformance,applicationsoftware,connectingmethod,media, mediasizeandjobcomplexity .

30,000Pages

2.1.1.9.ReliabilityandService

ItemsSpecication

PrintingV olume(SETAMPV)75sheets/month

MPBF20,000sheets

MTTR30min.

SETLifeCycle30,000sheetsor5years(whichevercomesrst)

2.1.1.10.Environment

ItemSpecication

Dimension(WxDxH)

WeightMachinewithconsumables6.4Kg

NoiseLevel*

TemperatureOperation10~32°C(50~90°F)

HumidityOperation20~80%RH

Powerrating**

Machine(notincluded handset)

Readymode26dB(A)

PrintmodeLessthan50dB(A)

CopymodeLessthan51dB(A)

ScanmodeLessthan51dB(A)

110voltmodelsAC110-127V

220voltmodelsAC220-240V

362x260x280mm(14.25x10.24x11.02inches)

ItemSpecication

AverageoperatingmodeLessthan310W

2.Productspecandfeature

PowerConsumption

ReadymodeLessthan30W

PowersavemodeLessthan3.5W

PoweroffmodeLessthan0.45W(0.1W***)

*SoundPressureLevel,ISO7779.Congurationtested:basicmachineinstallation,A4paper,simplexprinting.

**Seetheratinglabelonthemachineforthecorrectvoltage(V),frequency(hertz)andtypeofcurrent(A)foryourmachine.

***Forthemachinethathasapowerswitch.

2.1.1.11.Accessories

ImageItemRemark

Powercord

Quickinstallationguide

SoftwareCDThesoftwareCDcontainstheprinterdriversandsoftware

applications.

Misc.accessoriesMiscellaneousaccessoriesincludedwithyourmachinemay

varybycountryofpurchaseandspecicmodel.

Handset

2.Productspecandfeature

2.1.2.ModelComparisonTable

Samsung

SF-760P

Image

Speed(A4)20ppm18ppm18ppm

FPOT

(fromready)

Processor433MHz66MHz400MHz

Memory64MB16MB64MB

EmulationGDIGDIGDI

Paper

Capacity

Noise50dBA49dBA51dBA

Input150Bin250CST150Bin

Output100sheet50sheet100sheet

lessthan8.5seclessthan9seclessthan8.5sec

Samsung

SF-650P

M1212nf

TonerCartridge1.5K(0.7K)1.5K/2,5K(1K)1.6K(0.7K)

2.2.SystemOverview

Thischapterdescribesthefunctionsandoperatingprincipalofthemaincomponent.

2.2.1.FrontView

NOTE

•Thisillustrationmaydifferfromyourmachinedependingonyourmodel.Therearevarioustypesofmachine.

•Somefeaturesandoptionalgoodsmaynotbeavailabledependingonmodelorcountry.

2.Productspecandfeature

1Documentfeederwidthguides

2Documentfeederinputtray

3Documentfeeder

4Paperwidthguides

5Tray

6Outputtray

7Outputsupport

8Documentfeederoutputtray

9One-touchdial

10Controlpanel

11T opcover

12Innercover

13Tonercartridge

14Handset

15Scanunit

2.Productspecandfeature

2.2.2.RearView

NOTE

•Thisillustrationmaydifferfromyourmachinedependingonyourmodel.Therearevarioustypesofmachine.

•Somefeaturesandoptionalgoodsmaynotbeavailabledependingonmodelorcountry.

1Extensiontelephonesocket(EXT)

2Telephonelinesocket(Line)

3USB

4Powerreceptacle

2.2.3.PaperPath

Thefollowingdiagramdisplaysthepaththepaperfollowsduringtheprintingprocess.

[ADF]

2.Productspecandfeature

[Engine]

2.Productspecandfeature

2.2.4.SystemLayout

ThismodelconsistsoftheADFparts,engineparts,hardwareparts,rmware.Theenginepartsconsistsofthemechanical partscomprisingFrame,TonerCartridge,DriveUnit,Transferroller,Pickupunit,Fuser,Bin-tray.Thehardwareparts consistsofthemainboard,SMPS/HVPSboard,OPEboard,PCinterface.

1Pinchroller

2Whiteroller

3OPE

4Scansensorlever

5Docsensorlever

6Guide-DocL,R

7ADFupperframe

8Rearstacker

9ADFlowerframe

10ADFroller

11CISunit

2.Productspecandfeature

12Exitroller

13ADFstackerTX

14Exitroller1

15Fuserunit

16Tonercartridge

17Transferroller

18Feedroller

19Pickuproller

20Plate-Bottom

21LSU

2.Productspecandfeature

1 Paper width guide

2 Tray

2.2.4.1.FeedingPart

Itisconsistsofabin-typetray,pick-uproller,frictionpadandpartsrelatedtopaperfeedinitialization.

1)InputTray

Thismodelhasabin-typetray.

Ittakesacenterloadingmethodandapplies‘frictionpadseparatingmethod.’

ThesideguidecanbeadjustedforvarioustypesofpapersfromA6tolegalsizepaper .Ithasapaperdetectingfunction, paperarrangingfunction.

2)Pick-uproller

Ithasfunctionssuchasapaperpickupfunction,drivingcontrolfunction,paperfeedingfunction,andremovingelectronic staticfunction.Pickuprollerisdrivenbyclutch.

2.Productspecandfeature

2.2.4.2.TransferRoller

ThetransferrollerdeliversthetoneroftheOPCdrumtothepaper.

•LifeSpan:Printover30,000sheets(in15~30°C)

2.2.4.3.DriveUnit

InSF-760series,thedrivingdeviceconsistsofOPC,Pick-up,Feed,Fuser,Gear-TrainconnectedwithMountingmember. Astepmotorfordrivingisassembledtotheleftframe.

•DrivingFrequency:StepMotor810PPS(1013rpm)

•Itisapowerdeliveryunitbygearing:StepMotor→Pick-up/Feeder/OPC/Fuser/Exit

2.Productspecandfeature

2.2.4.4.FuserUnit

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

1)Thermostat

Whenaheatlampisoverheated,aThermostatcutsoffthemainpowertopreventover-heating.

•ThermostatT ype:Non-ContacttypeThermostat

•ControlT emperature:195°C±5°C

2)Thermistor

Itisatemperaturedetectingsensor .

•TemperatureResistance:7kΩ(180°C)

3)Heatroller

Theheatrollertransferstheheatfromthelamptoapplyaheatonthepaper .

ThesurfaceofaheatrolleriscoatedwithTeon,sotonerdoesnotsticktothesurface.

4)Pressureroller

Apressurerollermountedunderaheatrollerismadeofasiliconresin,andthesurfacealsoiscoatedwithTeon.Whena paperpassesbetweenaheatrollerandapressureroller,toneradherestothesurfaceofapaperandispermanentlyfused.

5)HalogenLamp

•V oltage:120V(115±5%)/220V:230±5%

•Capacity:850Watt±25W

6)Itemsforsafety

•Protectingdeviceforoverheating

•Safetydevice

2.Productspecandfeature

-1stprotectiondevice:Hardwarecutsoffwhenoverheated

-2ndprotectiondevice:Softwarecutsoffwhenoverheated

-3rdprotectiondevice:Thermostatcutsoffmainpower.

-Afuserpoweriscutoffwhenafrontcoverisopened.

-Maintainatemperatureoffusercover’ssurfaceunder80°Cforuser,andattachacautionlabelatwhere

customercanseeeasilywhencustomeropenarearcover.

2.Productspecandfeature

2.2.4.5.LSU(LaserScannerUnit)

ItisthecorepartoftheLBP(LaserBeamPrinter)whichswitchesfromthevideodatareceivedtothecontrollertothe electrostaticlatentimageontheOPCdrumbycontrollinglaserbeam,exposingOPCdrum,andturningprincipleofpolygon mirror.TheOPCdrumisturnedwiththepaperfeedingspeed.TheHSYNCsignaliscreatedwhenthelaserbeamfromLSU reachestheendofthepolygonmirror,andthesignalissenttothecontroller .ThecontrollerdetectstheHSYNCsignalto adjusttheverticallineoftheimageonpaper.Inotherwords,aftertheHSYNCsignalisdetected,theimagedataissentto theLSUtoadjusttheleftmarginonpaper.Theonesideofthepolygonmirrorisonelineforscanning.

2.Productspecandfeature

2.2.4.6.TonerCartridge

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

•DevelopingMethod:Nonmagneticsinglecomponentnon-contactingmethod

•Toner:Nonmagneticsinglecomponentpulverizedtypetoner

•Thelifespanoftoner(ISO19752pattern/A4standard)

-Initialtoner:0.7K

-Salestoner:1.5K

•OPCCleaning:Collectthetonerbyusingcleaningblade

•Handlingofwastedtoner:Collectthewastedtonerinthecleaningframebyusingcleaningblade

•Classifyingdevicefortonercartridge:IDisclassiedbyCRUM

2.Productspecandfeature

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2.2.5.Hardwareconguration

TheSF–760seriesElectricalCircuitSystemconsistsofthefollowing:

•Mainboard(Systemboard)

•OPEboard

•HVPS/SMPSboard

•Faxboard

DiagramofSF–760seriesElectricalCircuit

SF-760serieshasasystemboardofintegratedenginecontrollerandvideocontroller.

Theenginecontrollercontrolsallmodulesrequiredtoprint,thatis,LSU,HVPS/SMPS,Fuser,Motoretc.Itcommunicates withthevideocontrolblockinsideCPUforprinting.Andithastheinterfaceforallvideosyncsignaltoprintout thevideodata.

ThevideocontrollerreceivesprintdatafromthehostthroughnetworkorUSBPort.Ittakesthisinformationandgenerates printablevideobitmapdata.

Themainboardisadopted433MHzC3NCPUthatisintegratedwithenginecontroller,videocontroller,SDRAM,Flash ROM.ItusesSDRAMandFlashROMinsidetheASICchip.

+ 73 hidden pages

Samsung SF-760P, SF-761, SF-761P Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

MonoLaserMFP

1.Precautions

1.1.Safetywarning

1.2.Cautionforsafety

1.2.1.Toxicmaterial

1.2.3.Handlingprecautions

1.2.4.AssemblyandDisassemblyprecautions

1.2.5.Disregardingthiswarningmaycausebodilyinjury

1.3.ESDprecautions

2.Productspecandfeature

2.1.1.ProductOverview

2.1.1.1.GeneralPrintEngine

2.1.1.2.Copier

2.1.1.4.Fax

2.1.1.5.ControllerandSoftware

2.1.1.6.PaperHandling

2.1.1.7.Consumables

2.1.1.8.MaintenanceParts

2.1.1.9.ReliabilityandService

2.1.1.10.Environment

2.1.1.11.Accessories

2.1.2.ModelComparisonTable

2.2.SystemOverview

2.2.1.FrontView

2.2.2.RearView

2.2.3.PaperPath

2.2.4.SystemLayout

2.2.4.1.FeedingPart

2.2.4.2.TransferRoller

2.2.4.3.DriveUnit

2.2.4.4.FuserUnit

2.2.4.5.LSU(LaserScannerUnit)

2.2.4.6.TonerCartridge