Samsung CLP-775ND Service Manual

ColorLaserPrinter

CLP-775NDseries

MANUAL

SERVICE

ColorLaserPrinterContents

1.Precautions

2.Productspecandfeature

3.DisassemblyandReassembly

4.AlignmentandTroubleshooting

5.SystemDiagram

6.ReferenceInformation

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

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

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

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

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

2.1.2.3.PaperHandling.............................................................................................2−3

2.1.2.4.Reliability&Service.....................................................................................2−4

2.1.2.5.Consumables................................................................................................2−4

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

2.1.2.7.Environment................................................................................................2−6

2.1.2.8.Packing&Accessory.....................................................................................2−6

2.1.2.9.Options.......................................................................................................2−6

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

2.2.SystemOverview.....................................................................................................................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.FeedingSection............................................................................................2−12

2.2.4.2.FuserUnit....................................................................................................2−13

2.2.4.3.DriveUnit...................................................................................................2−14

2.2.4.4.LSU(LaserScannerUnit)...............................................................................2−15

2.2.4.5.PTB(PaperTransferBelt)Unit........................................................................2−16

2.2.4.6.TonerCartridge.............................................................................................2−17

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

2.2.5.1.MainPBA...................................................................................................2−19

2.2.5.2.SMPSboard.................................................................................................2−21

2.2.5.3.HVPSBoard................................................................................................2−23

Contents

2.2.5.4.HVPSsubboard...........................................................................................2−25

2.2.5.5.FuserDriveBoard.........................................................................................2−26

2.2.5.6.OPEBoard...................................................................................................2−27

2.2.5.7.Sensor.........................................................................................................2−28

2.2.6.SoftwareDescriptions..................................................................................................2−30

2.2.6.1.Overview.....................................................................................................2−30

2.2.6.2.Architecture.................................................................................................2−30

2.2.6.3.DataandControlFlow...................................................................................2−31

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.Replacingamaintenanceparts....................................................................................................3−6

3.3.1.FuserUnit..................................................................................................................3−6

3.3.2.Pick-Uproller.............................................................................................................3−7

3.3.3.RetardRoller..............................................................................................................3−8

3.3.4.DustCleaningKit........................................................................................................3−9

3.4.DisassemblyProcedure.............................................................................................................3−10

3.4.1.Cover........................................................................................................................3−10

3.4.2.FrontCover................................................................................................................3−13

3.4.3.OPEUnit...................................................................................................................3−14

3.4.4.MainPBA..................................................................................................................3−14

3.4.5.HVPSboard...............................................................................................................3−15

3.4.6.SMPSBoard...............................................................................................................3−15

3.4.7.HVPSSubBoard(ACBoard)........................................................................................3−16

3.4.8.FuserControlBoard.....................................................................................................3−17

3.4.9.LSU..........................................................................................................................3−18

3.4.10.ClutchPick-UpandClutch-Feed....................................................................................3−19

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

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

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

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

4.1.3.JAMRemoval.............................................................................................................4−3

4.1.3.1.ClearingPaperJams......................................................................................4−3

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

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

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

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

Contents

4.1.6.2.UsingSamsungPrinterStatus(Windowsonly)...................................................4−10

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

4.1.7.UpdatingFirmware......................................................................................................4−14

4.1.7.1.UpdatethermwarebyusingtheUSBport........................................................4−14

4.1.7.2.Updatethermwarebyusingthenetwork..........................................................4−15

4.1.8.TechMode.................................................................................................................4−17

4.1.8.1.ToentertheTechMode..................................................................................4−17

4.1.8.2.TechModeMenuMap...................................................................................4−18

4.1.8.3.TechModeMenudescription...........................................................................4−19

4.2.Troubleshooting......................................................................................................................4−24

4.2.1.ProcedureofCheckingtheSymptoms.............................................................................4−24

4.2.1.1.BasicCheckList...........................................................................................4−25

4.2.2.Errorcodeandtroubleshooting......................................................................................4−26

4.2.3.Imagequalityproblems................................................................................................4−60

4.2.4.Othererrors................................................................................................................4−64

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.AcronymsandAbbreviations.....................................................................................................6−2

6.2.1.Acronyms..................................................................................................................6−2

6.2.2.ServiceParts...............................................................................................................6−4

6.3.TheSamplePatternfortheTest..................................................................................................6−7

6.3.1.A4ISO19798StandardPattern......................................................................................6−7

6.4.Selectingalocation..................................................................................................................6−8

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edasaClassIlaserproductconformingtotherequirementsof IEC/EN60825-1:2014.ClassIlaserproductsarenotconsideredtobehazardous.Thelasersystemandprinterare designedsothereisneveranyhumanaccesstolaserradiationaboveaClassIlevelduringnormaloperation,user maintenanceorprescribedservicecondition.

1.Precautions

•Wavelength:800nm

•Beamdivergence

-Parallel:11degrees

-Perpendicular:35degrees

•Maximumpowerofenergyoutput:12mW

WARNING

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

Whenusingthisproduct,thesebasicsafetyprecautionsshouldalwaysbefollowedtoreduceriskofre,electric shock,andpersonalinjury.

4)Lithiumbatterynotreplaceablebyuser

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)Usecautionwheninsertingorremovingthepowerconnector.Whenremovingthepowerconnector,gripitrmlyand pull.Thepowerconnectormustbeinsertedcompletely ,otherwiseapoorcontactcouldcauseoverheatingpossibly leadingtoare.

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

8)Ensurethatthepowersocketsandplugsarenotcrackedorbrokeninanyway.Anysuchdefectsshouldberepaired immediately.T akecarenottocutordamagethepowercableorplugswhenmovingthemachine.

9)Usecautionduringthunderorlightningstorms.Samsungrecommendsthatthismachinebedisconnectedfromthe powersourcewhensuchweatherconditionsareexpected.Donottouchthemachineorthepowercordifitisstill connectedtothewallsocketintheseweatherconditions.

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

11)Donotpositiontheproductindirectsunlight.Thiswillcausethetemperatureinsidetheproducttorisepossiblyleading totheproductfailingtoworkproperlyandinextremeconditionscouldleadtoare.

12)Donotinsertanymetalobjectsintothemachinethroughtheventilatorfanorotherpartofthecasing,itcouldmake contactwithahighvoltageconductorinsidethemachineandcauseanelectricshock.

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.

6)Ensurethatthemachineisinstalledandusedinproperareatomeetthetemperatureandhumidityspecications.

•IfthemachineisstoredatbelowzeroCelsiusforalongtime,donotusethemachineinstantlyaftermovement.It canmalfunction.Takecareofthemachinestorage.IfthemachineisstoredatbelowzeroCelsiusforalongtime, keepthemachineatroomtemperatureandinstallit.

1.2.4.AssemblyandDisassemblyprecautions

ReplacepartscarefullyandalwaysuseSamsungparts.Takecaretonotetheexactlocationofpartsandalsocablerouting beforedismantlinganypartofthemachine.Ensureallpartsandcablesarereplacedcorrectly.Pleasecarryoutthefollowing proceduresbeforedismantlingtheproductorreplacinganyparts.

1)Checkthecontentsofthemachinememoryandmakeanoteofanyusersettings.Thesewillbeerasedifthemain boardornetworkcardisreplaced.

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.T ake carewhenworkingwiththeCovers(especiallythetopcover)openaslightisadmittedtotheOPCareaandcan damagetheOPCDrum.

•TakecarenottoscratchthegreensurfaceofOPCDrumUnit.IfthegreensurfaceoftheDrumCartridgeis scratchedortouchedtheprintqualitywillbecompromised.

1.Precautions

1.2.5.Disregardingthiswarningmaycausebodilyinjury

1)Becarefulwiththehightemperaturepart.

Thefuserunitworksatahightemperature.Usecautionwhenworkingontheprinter.W aitforthefusertocool downbeforedisassembly.

2)Donotputngerorhairintotherotatingparts.

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

3)Whenyoumovetheprinter.

Thisprinterweighs6kgincludingtonercartridgeandcassette.Usesafeliftingandhandlingtechniques.Usethelifting handleslocatedoneachsideofthemachine.Backinjurycouldbecausedifyoudonotliftcarefully .

4)Ensuretheprinterisinstalledsafely .

Theprinterweighs6kg,ensuretheprinterisinstalledonalevelsurface,capableofsupportingitsweight.Failuretodo socouldcausetheprintertotiporfallpossiblycausingpersonalinjuryordamagingtheprinter .

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cations

2.1.1.ProductOverview

1)Speed

•33(Color)/33(Black)ppminA4(35/35ppminLetter)

2)Processor

•600MHz

3)PrinterLanguage

•PS3,PCL5c,PCL6,PDF1.4

4)Memory

•384MB(Standard)/896MB(Max)

5)Interface

•HighSpeedUSB2.0

•10/100/1000BaseTXnetworkconnector

•802.11b/g/nwirelessLAN(Optional)

•IEEE1284Parallel(Optional)

•HDD250GB(Optional)

6)Tonercartridge

•Initial:3.5K(K)/3.5K(CMY)

•Sales:7K(K)/7K(CMY)

7)PaperHandling

•Maximum1,600SheetsPaperCapacity(500shcassette,500sh SCFx2EA,100MP)

2.1.2.Specications

•ProductSpecicationsaresubjecttochangewithoutnotice.Seebelowforproductspecications.

2.1.2.1.GeneralPrintEngine

ItemsSpecication

2.Productspecandfeature

Simplex

EngineSpeed

Duplex

Warm-uptimeFromSleep≤25sec

FromReady≤10sec

FPOT(B&W)

FromSleep≤28sec

FromReady≤11sec

FPOT(Color)

FromSleep≤30sec

Optical600x600dpi

Resolution

Support

•B&W:Upto33ppminA4(35ppminLetter)

•Color:Upto33ppminA4(35ppminLetter)

•B&W:Upto14ppminA4(14ppminLetter)

•Color:Upto14ppminA4(14ppminLetter)

•PCL

•Best:9,600x600effectiveoutput

•Normal:2,400x600dpi

•Draft:600x600dpi

•PostScript3

•Best:9,600x600effectiveoutput

•Normal:1,200x600dpi

•Draft:600x600dpi

2.1.2.2.ControllerandSoftware

ItemsSpecication

Processor600MHz

Memory

PrinterLanguagesPS3,PCL5,PLC6

Fonts93scalable,1bitmapPCL,136PS

Std.384MB

Max896MB

2.Productspecandfeature

ItemsSpecication

Driver

Application

Interface

UserInterface

DefaultDriverPCL6

SupportingOS

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

ManagementToolEasyPrintManagement

NetworkManagementSetIP ,SyncThruWebAdminService4.0

IEEE1284ParallelOptional

USBHi-SpeedUSB2.0

WiredNetworkEthernet10/100/1000BaseTX

WirelessNetworkOptional

LCD4–LineLCD

LED1StatusLED

Windows2000/XP(32/64bits)/Vista(32/64bits)/2003 Server(32/64bits)/2008Server(32/64bits)/Win7/2008R2

•VariousLinuxOS

•RedHat8~9,

•FedoraCore1~4

•Mandrake9.2~10.1

•SuSE8.2~9.2

•MacOS10.3~10.6

Server(32/64bits)/2008Server(32/64bits)/Win7/2008R2

2.1.2.3.PaperHandling

ItemsSpecication

StandardCapacity500-sheetTray@80g/m²,100–sheetMPTray

Max.Capacity

Printing

StandardCassette Tray

MPTray

Max.Size216x356mm(8.5"x14")

Min.Size76x127mm(3.0"x5")

Capacity500sheets@80g/m²

Mediasizes76x127mm(3”x5”)~216x356mm(8.5”x14”)

MediatypesPlainpaper

Mediaweight16~43lb(60~163g/m²)

SensingPaperEmpty

Capacity100-sheet@80g/m²

MediasizesA4148.5x210~Legal216x356(8.5”x14”)

Mediatypes

1600sheets@80g/m²(500–sheetbasicTray,500–sheetSCFTrayx2,100–sheet MP)

PrinterDefault,PlainPaper,Thick,Thin,Cotton,ArchivePaper,Bond,Card Stock,Labels,Preprinted,ColorPaper,Envelope,Recycled

Mediaweight16~58lb(60to220g/m²)

SensingPaperEmpty

2.Productspecandfeature

ItemsSpecication

Capacity500sheets@80g/m²

MediasizesA5148.5x210mm~Legal216x356mm(8.5"x14")

OptionalCassette Tray

MediatypesPlainpaper

Mediaweight16~43lb(60~163g/m²)

SensingPaperEmpty

OutputStackingFace-Down

Duplex

2.1.2.4.Reliability&Service

PrintingV olume(SETAMPV)1800Pages,1080/720pages(Colorandmonoprints)

2.1.2.5.Consumables

250sheets@80g/m²(BaseLinePaper:SamsungPremium/Xerox4200)NN Condition

SupportingStandard

MediasizesA4,Letter,Legal,Ocio,Folio

MediatypesPalinpaperonly

Mediaweight16~32lb(60~120g/m²)

ItemsSpecication

MaxMonthlyDuty120,000pages

MPBF65,000pages

MTTR<30min.

TonerCartridge

PaperTransferBelt(PTB)

ItemsSpecication

CLT-C609S(Cyan)

Model

Yield

ModelCLT-T508

Yield50Kpages

CLT-M609S(Magenta)

CLT-Y609S(Y ellow)

CLT-K609S(Black)

•Initial(CMYK):AverageCartridgeYield3.5Kstandardpages.

•Sales(CMYK):AveragecartridgeY ield7Kstandardpages

DeclaredcartridgeyieldinaccordancewithISO/IEC19798.

2.Productspecandfeature

2.1.2.6.Maintenancepart

Items

FuserUnit

Pickup-Roller(Tray1)

Main

Set

RetardRoller(Tray1)

Pickup-Roller(MPT)

FrictionPad(MPT)

DustcleaningKit

PartCode

(PartName)

JC96-05454B

(Fuser,110V)

JC96-05455B

(Fuser,220V)

JC73-00340A

(RUBBER-PICKUP)

JC90-01063A

(CASSETTE-RETARD)

JC66-03043A

(ROLLER-RUBBER P/UPMP)

JC73-00132A

(RPR-FRICTIONP AD MP)

JC93-00399A

(FRAME-REGICLEANING)

Life

[LowStatus]

F:PrepareFuserunit

100K

Pages

100K

Pages

100K

Pages

100K

Pages

100K

Pages

100K

Pages

A:Preparenewfuserunit

[EmptyStatus]

F:ReplaceFuserunit

A:Replacewithnewfuserunit

N/A

F:ReplaceRetardroller

A:ReplacewithnewTray1Retardroller

N/A

F:ReplaceDustCleaning

A:ReplacewithnewDustCleaningkit

UIWarningMessage

F:First,A:After"OK"Button

Pickup-Roller(Tray2)N/A

ForwardRoller(Tray2)

SCF1

RetardRoller(Tray2)

Pickup-Roller(Tray3)N/A

ForwardRoller(Tray3)

SCF2

RetardRoller(Tray3)

JC97-02259A

(MEAUNIT -ROLLER PU)

JC97-02259A

(MEAUNIT -ROLLER PU)

JC97-02259A

(MEAUNIT -ROLLER PU)

JC97-02259A

(MEAUNIT -ROLLER PU)

200K

Pages

100K

Pages

200K

Pages

100K

Pages

N/A

F:ReplaceRetardroller

A:ReplacewithnewTray2Retardroller

N/A

F:ReplaceRetardroller

A:ReplacewithnewTray3Retardroller

2.Productspecandfeature

2.1.2.7.Environment

ItemsSpecication

OperatingEnvironment

AcousticNoiseLevel (SoundPower/Pressure)

InputV oltage110-127V AC,50/60Hzor220-240VAC,50/60Hz

PowerConsumption

Dimension(WxDxH)SET446x481x464mm(17.6x18.9x18.3inches)withoutoptionaltray

WeightSETwithconsumables30.4kg(67lbs)

Temperature15℃~32.5℃

Humidity10%~80%

PrintingLessthan54dBA

StandbyLessthan35dBA

SleepBackGroundLevel

ReadyLessthan60Wh

A VG.Lessthan750Wh

Max/PeakLessthan1000Wh

SleepLessthan8Wh

2.1.2.8.Packing&Accessory

ItemAccessory

DriverInstallCD-ROM

PowerCable

USBCable(CIS/China/Korea/India)

In-Box

QuickInstallGuide

WarrantyRegistrationCard

User’sManual(HTML)

InitialTonerCartridge(CMYK)

2.1.2.9.Options

ItemsModelNameRemark

MemoryML-MEM170512MB

SecondCassetteFeederCLP-S775500–sheetCassette

WirelessNetworkML-NWA65L

HardDiskML-HDK425250GB

IEEE1284BParallelML-PAR100

2.Productspecandfeature

2.1.3.ModelComparisonTable

SamsungCLP-775NDSamsungCLP-770NDHPP1505n

Image

Mono/ColorSpeed(A4)33ppm/33ppm32ppm/32ppm30ppm/30ppm

Processor600MHzDualCore800MHz516MHz

Memory(Std/Max)384MB/896MB256MB/768MB256~512MB/1024MB

PrintLanguagePCL5/6,PS3,PDF1.4PCL5/6,PS3,PDF1.4PCL5/6,PS3,PDF1.4

PaperInput

DuplexStdStdStd

Interface

Size(mm)446x481x464mm446x481x464mm513x490x358mm

TonerCartridge

(Mono/Color)

500Cassette,100MP

500x2SCF

HighSpeedUSB2.0

GigabitEthernet

USBHost

7K/7K7K/7K10.5K/7K

500Cassette,100MP

500x2SCF

HighSpeedUSB2.0

GigabitEthernet

USBHost

250Cassette,100MP

HighSpeedUSB2.0

GigabitEthernet

USBHost

500SCF

2.2.SystemOverview

Thischapterdescribesthefunctionsandoperatingprincipalsoftheprinter.

2.2.1.FrontView

2.Productspecandfeature

Thisillustrationmaydifferfromyourmachinedependingonitsmodel.

1OutputTray8FrontCoverHandle

2OutputSupport9FrontCover

3PaperLevelIndicator10ControlPanel

4OptionalTray*11Multi-PurposeTrayPaperWidthGuide

5Tray112TonerCartridge

6Multi-PurposeTray13PaperTransferBelt(PTB)

7Multi-PurposeTrayHandle

*:Thisisanoptionfeature.

2.Productspecandfeature

2.2.2.RearView

Thisillustrationmaydifferfromyourmachinedependingonitsmodel.

1ControlBoardcover6NetworkPort

2Powerreceptacle7USBPort

3Power-Switch8Externaldeviceinterface(EDI)*

4Handle9IEEE802.11b/g/nWirelessLAN**

5IEEE1284ParallelConnector

*:ExternaldeviceinterfaceforSamsungandthirdpartysolutions.

**:Thisisanoptionalfeature.

2.2.3.PaperPath

Cassette Feed

SCF1 Feed

SCF2 Feed

Simplex

Pass

Duplex Pass

Exit Pass

MP Feed

Cassette Feed

SCF1 Feed

SCF2 Feed

Simplex

Pass

Duplex Pass

Exit Pass

MP Feed

Cassette Feed

SCF1 Feed

SCF2 Feed

Cassette Feed

SCF1 Feed

SCF2 Feed

Simplex

Pass

Duplex Pass

Exit Pass

MP Feed

Simplex

Pass

Simplex

Path

Duplex Pass

Exit Pass

MP Feed

Duplex PassDuplex Path

Exit Pass

MP Feed

Exit Path

MP Feed

Thefollowingdiagramdisplaysthepaththepaperfollowsduringtheprintingprocess.

2.Productspecandfeature

2.2.4.SystemLayout

Thismodelconsistsofthemechanicalpartsandhardwareparts.MechanicalpartsconsistsofFrame,Feeding,Developing, Driving,Transferring,Fusing.Hardwarepartsconsistsofthemaincontrolboard,SMPSboard,HVPSboard,Fuser controlboard,operationpanel,PCInterface.

NoNameNoName

1LSU10OPEUnit

2TonerCartridge(K)11FuserUnit

3TonerCartridge(C)12PaperTransferUnit(PTB)

4TonerCartridge(M)13Mainboard/SMPSboard/FuserDrive

5TonerCartridge(Y)14Pick-UpRoller

6Tray1(BasicTray)15RetardRoller

7SCFUnit(Optional)16RetardRoller

8Pick-UpRoller17Pick-UpRoller

9ExitRoller

Board(FDB)

2.Productspecandfeature

2.2.4.1.FeedingSection

Itisconsistsofabasiccassette,anMPtrayforsupplyingdifferenttypesofmedia(envelope,label,specialpaper)and partsrelatedtopapertransferring.

1)Tray1(BasicT ray)

Thismodelhasacassettetypetray.

Ittakesacenterloadingmethodandapplies‘semiretardseparatingmethod.’

Ithasapaperexistencesensingfunction,paperarrangingfunction.

Inthefrontside,thereisapaperlevelindicator.

2)Pick-uproller

ItistostarttheinitializationofpaperfeedoutoftheCassetteTray,andsubsequenttransporttotheRegistrationRollers. ThePick-uprollerisdrivenbyasolenoid.

3)RegistrationRoller

ItisusedatheprimaryRegistrationRoller,whichisusedtotimethepaperwiththevisiblytonerimageontheTransfer Belt;itisusedasanantiskewdeviceaswell.

4)MPTray

Themulti-purposetraycanholdspecialsizesandtypesofprintmaterial,suchaspostcards,notecards,andenvelopes.It isusefulforsinglepageprintingonletterheadorcoloredpaper.

5)SCF(SecondCassetteFeeder ,2nd/3rdtray)

SCFistheoptionunitofCLP-775ND.Thisadditionallystoresandautomaticallyfeedsprintingpaper .Itsfunctionisthe sameastheCassette(1sttray).ThisSCFcanbeinstalleduntilMax.2ea.

2.Productspecandfeature

2.2.4.2.FuserUnit

ThisunitconsistsofHeatRoller,aThermostat,andThermistors,etc.Itfusesthetonerthatwastransferredbythetransfer rollerontothepaper,byapplyingpressureandhightemperaturetocompletefusingprocess.

•FusingType:[DualLampHeating,800W/500W]

•HeatRoller:PipeT ype(LampInside)

1)Thermostat

Whenaheatlampisoverheated,aThermostatcutsoffthemainpowertopreventover-heating.

•ThermostatT ype:Non-Contacttype

2)Thermistor

Itisatemperaturedetectingsensor .

3)FuserBelt

Thefuserbelttransferstheheatfromthelamptoapplyaheatonthepaper .Thesurfaceofthefuserbeltiscoatedwith Teon,sotonerdoesnotsticktothesurface.

4)Pressureroller

Apressurerollermountedunderaheatrollerismadeofasiliconresin,andthesurfacealsoiscoatedwithTeon.Whena paperpassesbetweenaheatrollerandapressureroller,toneradherestothesurfaceofapaperandispermanentlyfused.

2.Productspecandfeature

2.2.4.3.DriveUnit

Thisproducthavemanymotors.ThesemotorsdrivethePTBunit,fuserunit,feederunit,exitunit,etc.

NoMotorFunction

1BLDCMotorForFuserUnit

2BLDCMotorForOPCDriveUnit

3BLDCMotorForDEVEDriveUnit

4StepMotorForFeedDriveUnit

2.Productspecandfeature

OP C Drum

Photo Diode

LD Driver circit

Prote ctor panel

LD(La s er Diode)

Polygon Mirror

Polygon Motor

Motor Driver

2.2.4.4.LSU(LaserScannerUnit)

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

TroubleFailureAnalysis

PolygonMotorErrorTheRotationofPolygonMotorcannotreachstable.

HsyncErrorThoughtherotationofPolygonMotorreachstable,thesignalofHsyncisnotoccurred.

2.Productspecandfeature

2.2.4.5.PTB(PaperTransferBelt)Unit

Thisunitconsistsofatransferbelt,transferroller,duplexunit.wastetonertank,etc.Thetransferbeltcarriestheprinting paperthroughOPCdrumsofeachcolors.AsthepaperandtransferbeltpassbetweenthetransferrollerandtheOPC drum,thenegativelychargedtonerimagesformedonOPCdrumaretransferredtotheprintingmediumpaperbypositive biasappliedtothetransferroller .Thetonerimagestransferredtothepaperismelteddownandxedonthepaperby thefusingsystem.

•BeltCleaning:CollectthetonerbyusingRubberBlade

•Managementofwastedtoner:TheW asteT onerT ankisequipped.

•LifeSpan:50,000images(DeclaredyieldvalueinaccordancewithISO/IEC24712)

•TransferV oltageControl:ADCControlonConductiveSpongeRoller

2.Productspecandfeature

2.2.4.6.TonerCartridge

Byusingtheelectronicphotoprocess,itcreatesavisualimage.EachtonercartridgeconsistsoftheOPCunitandthe developingunit.TheOPCunithasOPCdrumandchargingroller,andthetonercartridgeunithastoner,supplyroller, developingroller,andblade(Doctorblade)

•Developingmethod:Non-magneticone-componentnon-contactingmethod

•Toner:Nonmagneticone-componentpulverizedtoner

•Theexpectedlifeoftonercartridge:7,000(YMCK)pages(N/N,Simplex,ISO/IEC24712standardpages)

•OPCCleaning:CollectthetonerbyusingCleaningBlade

•MethodofTonersupply:Toneriscarriedtothedevelopingrollerbysupplybelt.

2.2.5.HardwareConguration

LP E C 3

ASIC En gin e Co n trol

DDR 2

32b it SO DIMM MODULE

M U X

SMPS TYPE5 ( STAG E3)

PO WER

CO RD

FUS ER Lam p Co nt rol

Moto r

-O PC BLDC

-DEVE BLDC

-FU SER BLDC

-FE ED STEP MOTO R

S ole no id/C lut c h

-CS T Pic kup S ole noid

-DEVE K Clutc h

- REG I Clu tch

-Fu se r Fa n

-Re ar Fa n

P TB UNIT

ACR s en s or L/R

LSU

-2 Po lyg on Moto r

-2 Bea m 4 LD

-LSU Tem p

FUS ER UNIT

Th ermis tor1

Th ermis tor2

800 W lam p

Th ermo sta t

500 W lam p

S CF UNIT (OP TION)

HVPS

5VS

S ATA

US B HUB

EE PRO M

M2451 2

WLAN

ED I

Fla s h Me m ory

32 M

Co ver Switc h

24VS1

24V1

Se n s or

-FC F Emp ty

-CS T Dete ct

-Fe ed Se ns or

-Exit Se ns o r

-Re gi Se ns or

-P- size S en so r

Ca s se tt e

-MP Pic kup So lenoid

-MP Emp ty Sen s o r

24V1/24 V2 /24V3

5V_SMPS

DE VICE

US B

RE S E T IC

DC Co nv er ter

Re gu lat o r

SC L0_C 4 SD A0_C 4

ADDR

DATA

GIGA BIT

RTL82 11D

1W MICOM

n POWE R_O FF

n KEY_PO WER _SW

n SLEE P_2 4V_OFF

SC F_R XD SC F_T XD

PANE L_RX D

PANE L_TX D

FU SER CONT ROL

FU SER BIAS

SC L_B ELT SD A_B ELT

AN_C TD1_P AN_C TD2_P ADC_ CTDL ED

Se n s or -Ana log

-TEMP_ IN

-Hum id ity/TEMP_OUT

OUT BIN SENS O R

OP Pa n e l

MAIN P BA

Ch o ru s

OP TION

DEVE CRUM IF PB A

DEVE Y C RUM

DEVE M CR UM

DEVE C CRUM

DEVE K CRUM

CL K_LP EC

n RES ET

n F_R ESE T

PWM Con ’

SATA I/ F

US B Hos t

DE VICE

US B

3.3 V

1.1 V 1 .8V

Sy s tem

C4 Lp ec 3

VDDQ VTT

1.8 .V 0.9 V

MCLK

SS CG

UCLK

SATA_CLK

SS CG

RTC CLK

12Mh z

15Mh z

32. 768K hz

12Mh z

VCLK

SC L_DE V

SD A_DE V

P a ra llel pwr

CR UM

CTD s en so r

SUB_AC

-HVPS F an

TheCLP-775NDElectricalCircuitSystemconsistsofthefollowing:

•Mainboard

•SMPSboard

•HVPSboardandHVPSsubboard

•FuserDriveboard

•OPEboard

CLP-775NDBlockDiagram

2.Productspecandfeature

111

2.2.5.1.MainPBA

TheCLP-775NDsystemcontrollerconsistsofamaincontrollerandanenginecontrollerinone-board.Themaincontroller usesaARMScorechipasmainprocessors,whicharededicatedforprintingseveralinternaloperatingblocksthrough systemprogramsstoredinFlashMemory.TheenginecontrollerhasanenginecontrolSoC,whichincludesmotordrivers, PWMdrivers,LSUdrivers,sensors,high-voltagedrivers,andotherdrivingunitsformechanicalparts.

NOConnectorNOConnectorNOConnector

1DEVEBLDC12pin12FUSERTHERMISTOR6pin23NETWORKJACK

2OPCBLDC10pin13PTL8pin24DCJACK

3PTB14pin14FANRear3pin25MHV12pin

4FEEDMotor6pin15BASEDIMM26SCFI/F18pin

5FUSERBLDC15pin16OPTIONDIMM27HDDSA TA7pin

6HUMIDITYsensor8pin17Chorus4asic28FUERHEATCTL6pin

7DEVECRUM7pin1832MBFlashmemory29HDDPWR2pin

8HVPSInterface23pin19WLAN30LSUTemp2pin

9HVPSInterface30pin20LPEC3ASIC31LSU32pin/34pin

10Coveropen2pin21HOSTJACK32LSUPWR10pin

11OUTBINSensor3pin22USBJACK33SMPS28pin

CPU

1)ARMv5TEcompliantcore800MHz(I-Cache:32KB,D-Cache:32KB)

Memory

1)ROM

•NorFlashused(32MB)

•InterfaceWithChorus4ROMController

2)SDRAM

•Size:CLP-775ND(DDR2):Default384MB(Option512MB)

3)EEPROM

•Size:512KB

•InterfaceWithSPGPV4I2CController

4)SDRAM

•Size:256Byte

2.Productspecandfeature

I/OInterface

1)USB

•DEVICE:HighSpeedUSB2.0(Highspeed480Mbps)

•Host:J-SCRIBEEnablerKit(Fullspeed12Mbps)

2)N/WEmbedded

•Chorus4WithMIIInterface

•ActiveLED(Y ellow)/LinkLED(Green)

3)PWM

•HighV oltageControlWithDuty

•MainMotorClock

4)I2CInterface

•NVRAM(systeminformation+networkinformation)

•CRUM

2.Productspecandfeature

24V Fuse

5V Fuse

Varistor

2.2.5.2.SMPSboard

SMPS(SwitchingModePowerSupply)BoardsupplieselectricpowertoaMainBoardandotherboardsthroughaMain Controllerby+5V ,+24Vfrom110V/220Vpowerinput.Ithassafetyprotectionmodesforovercurrentandload.

•Specication

-AC110V(90V~135V)/AC220V(180V~270V)

-OutputPower:192W/Max.270W

-DC5V:24W~30W/DC24V :168W~240W

■Connection

1INPUT_AC(FuserDriveBoard)

2OUTPUT_5V,24V(MainPBA)

INPUT_24V_Control(MainPBA)

+ 104 hidden pages

Samsung CLP-775ND Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

ColorLaserPrinter

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

2.1.2.1.GeneralPrintEngine

2.1.2.2.ControllerandSoftware

2.1.2.3.PaperHandling

2.1.2.4.Reliability&Service

2.1.2.5.Consumables

2.1.2.6.Maintenancepart

2.1.2.7.Environment

2.1.2.8.Packing&Accessory

2.1.2.9.Options

2.1.3.ModelComparisonTable

2.2.SystemOverview

2.2.1.FrontView

2.2.2.RearView

2.2.3.PaperPath

2.2.4.SystemLayout

2.2.4.1.FeedingSection

2.2.4.2.FuserUnit

2.2.4.3.DriveUnit

2.2.4.4.LSU(LaserScannerUnit)

2.2.4.5.PTB(PaperTransferBelt)Unit

2.2.4.6.TonerCartridge

2.2.5.1.MainPBA

2.2.5.2.SMPSboard