Star NX-1001 Technical Manual

form whatsoever, without STAR’s express permission is forbid- den. • The contents of this manual are subject to change without notice. • All efforts have been made to ensure the accuracy of the contents of this manual at the time of going to press. However, should any errors be detected, STAR would greatly appreciate being in- formed of them. • The above notwithstanding, STAR can assume no responsibility for any errors in this manual. © Copyright 1990-1997 Star Micronics Co.,Ltd.

It is intended for use as a reference for periodic inspections and maintenance procedures. This manual is prepared for use at a technical level and not for the general user. Model Destination NX1001 MULTI-FONT For American, Asian, and Russian market LC-20 For European and Pacific market • This manual is divided into the following sections: Chapter 1 General Specifications Chapter 2 Theory of Operation Chapter 3 Adjustments Chapter 4 Parts Replacement Chapter 5 Maintenance and Lubrication Chapter 6 Troubleshooting Chapter 7 Parts List • First edition : Jul. 1990 Second edition : Feb. 1991 Third edition : Mar.1993 Fourth edition : Aug.1994 Fifth edition : Aug.1996 Sixth edition : Aug.1997 1 5 2 3 4 7 6

. . 3. Paraiieiinterface....................................................................................................8 3 G e S p e . . . . . . . . m . . m . . 3 C o n . . . . . . . . . . u - . - . . 4 S e r ( o ........................................................................................9 4 G e S p e ............................................................................................9 4 C o S i a F u D e . . . 4 D i S e ...............................................................................................10

37.5characterspersecond(inNLQpica) Databuffer 4K byteswhennotusedfordownloadcharacters l-Linebufferwhenusingdownload Paperfeed 2.8 inches/second(duringpagefeed) Frictionandpush-tractorfeed Printingdirection Draft:bi-directionalor unidirrxxional(selectable),logicseeking NLQandgraphics:unidirectional,logicseeking Characterset Standardcharacterset 96 ASCIIcharacter IBMcharacterset 244characters(ASCII,internationalcharacters,symbols,blockgraphics) Downloadablecharacters Max. 192(draft)or 74 (NLQ) Internationalcharactersets”’ 14sets(USA,France,Germany,England,DcnmarkI,DenmarkII,Sweden,Italy SpainI, SpainII,Japan,Norway,LatinAmerica,Denmark/Norway) Dotmatrixsize Charactermatrix 9 x 11(Draft) 18X23 (NLQ) DPI Normal (8 or9) x480 60 Double (8 or9) x960 120 High-speeddouble (8 or9) x960 120 Quadruple (8 or9) x 1920 240 CRTI (8 or9) x640 80 CRTII (8 or9)x 720 90 Plotter (80r9) x576 7 Double-plotter (8 or9) x 1152 144 Linespacing 1/6inchstandard 1/8,nf72,or n/216inchprogrammable Columnwidth 80,normalpica 96,normalelite 137,condensedpica 160,condensedelite .. . . *1 In thecaseof Russianversion,theinternationalcharactersetsareehmmated. P Singlesheets 5.5- 8.5 incheswide 0.07-0.10 mmthick Fanfoldpaper 4-10 incheswide 0.07-0.10 mmthick(single-ply) Max,0.28mmthick(3-ply) -3-

Operatinghumidity:10to 80%,noncondensation Storagetemperature:–30 to 65°C(-22 to 149°F) Storagehumidity:10%to 95%(at40°C)(nocondensation) Printhead 9 pins Life: 100milliondots Ribbon Fabricribboncartridge Life: 1milliondraftcharacters Option Automaticsheetfeeder Serial-Parallelconverter(SPC-8K) P a i n Interface Centronics-compatible Synchronization Byexternalsuppliedstrobepulses Handshaking ByACKor BUSYsignals % Logiclevel I Connector I 57-30360Am~henol I Fig. 1-1ExternalDimensions –4-

N P P C R C B L / L ‘ C “a’enK P M - I C Fig. 1-2FrontViewof thePrinter a L Fig. 1-3Diagramof InternalComposition -5-

1) ExceptforRussianversion Switch Function ON OFF 1-1 Printermode Standard IBM I 1-2 I UsageofRAM I Buffer I Download 1-3 AutoLF No Yes 1-4 Autosheetfeeder Inactive Active 1-5 Pawr-out detector Enabled Disabled \ 1-6 I Oratorlowercase I Smallcam I Lowercase k 1-7 Pagelength 1-8 (See right) 1 1 Characterset (Standardmode) ‘raphics ‘wlics 2-1 Characterset (IBMmode) ‘et#2 Set#1 2-2 2-3 Internationalcharacterset (Seeright) 2-4 2) ForRussianversion I Switch \ Function I ON \ OFF I I 1-1 I Printermode I Standard I IBM I 1-2 UsageofRAM Buffer Download 1-3 AutoLF No Yes I-4 Autosheetfeeder Inactive Active I 1-5 I Parer-outdetector I Enabled I Disabled \ 14 Character/Command 1-7 (Seeright) 1-8 PageLength 11inches 12inches 2-1 Characterset Set#1 Set#2 t---i 2-2 Codepage 2-3 (See right) I 2-4 I Notused I I P l I n c s Country 2 2 2 U.S.A. ON ON ON France OFF ON ON Germany ON OFF ON England OFF OFF ON DenmarkI* ON ON OFF Sweden OFF ON OFF Italy ON OFF OFF SpainI OFF OFF OFF * Denmark/Norwaywhenswitc2-1is ON. C h ( s 1 i o Character/Command 1-6 1-7 Italiccancel ON ON Italicselect OFF ON MSBnotcontrol ON OFF MSB=l OFF OFF C p Codepage 2-2 2-3 ‘ R 1%---wl 1 I #3840IBM-Russian OFF ON Gost I OFF / OFF I -

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Fig. 1-5TimingChartsof ParallelInterface 3-2. ConnectorSignals PinNo SignalName FunctionDescription 1 STROBE Goesfromhighto low(for>0.5ps)whenactive 2 DATA1 Highwhenactive 3 DATA2 Highwhenactive 4 DATA3 Highwhenactive 5 DATA4 Highwhenactive 6 DATA5 Highwhenactive 7 DATA6 Highwhenactive 8 DATA7 Highwhenactive 9 DATA8 Highwhenactive 10 ACK 9VSlowpulseacknowledgesreceiptof data 11 BUSY Lowwhenprinterreadyto receivedata. 12 PAPER Highwhenpaperout.Canbe disabledwithDIPswitchsetting. 13 SELECT Highwhenprinterison-line 14,15 NC 16 SIGNALGND Signalground 17 CHASSISGND Chassisground(isolatedfromsignalground) 18 +5V +5VDCoutputfromprinter 19-30 GND Twistedpairgroundreturn 31 RESET Whenthisinputsignalis low,printerisreset 32 ERROR Outputs lowwhenprintercannotcontinue,due to an error 33 EXTGND Externalground 34,35 NC 36 SELECTIN Alwayshigh -8–

Whenusingtheserialinterface,theoptionalSerial-PmallelConvertermustbe connectedwiththeprinter. 4-1. G e S p e Item Specifications Interface RS-232Clevel SynchronizationSystem Asynchronous Baudrate 150-19,200 bitper second(BPS)[selectable] 150,300,600>1200,2400,4800,9600, 19200BPS Wordlength Startbit: 1bit Databit: 7 or 8 bits(selectable) Paritybit: Odd,EvenorNone(selectable) Stopbit: Morethen 1bitlength Signalpolarity Mark: Logic“l” (-3V to -15V) Space: Logic“O”(+3Vto+15V) Handshaking DTR XON/xOFF ETX/ACK Databuffer 8KB(standard) 4-2. Connector Signals and Functional Descriptions I Pin No. \Signal name I Direction Function 1 GND — Printer’schassisground. 2 TXD OUT Thispin carriesdaiafromtheprinter. 3 RXD IN Thispin carriesdatato theprinter. 4 RTS OUT Alwaysspace. Thispin is spacewhenthecomputerisreadyto senddata. 5 CTS . Thisprinterdoesnotcheckthispin. 6 NC Unused. 7 GND — Signalground. 8-10 NC Unused. 11 Thisprinterturnsthispin spacewhenit is readym receivedata. RCH OUT Thislinecarriesthe samesignalaspin20. 12– 19 NC Unused. 20 DTR OUT Theprinterturnsthispin spacewhenit is readyto receivedata. 21–25 NC Unused. –9–

I Switch ON OFF 1 8 databits 7 databits 2 Noparity Paritychecked 3 Handshakingprotocols- seetablebelow 4 5 Oddparity Evenparity 6 7 Datatransferrate– seetablebelow 8 All switchedare setON whentheprinterleavesthefactory. Protocol Switch 3 Switch 4 DTRmode ON ON I XON/XOFFmode I ON I OFF I I ETX/ACKmode I OFF I ON I Baud rate Switch 6 Switch 7 Switch 8 I 150 OFF OFF OFF I 300 OFF OFF ON 600 OFF ON OFF I 1200 \ OFF I ON I ON I 2400 ON OFF OFF 1 4800 ON OFF ON 9600 ON ON OFF I 19200 I ON I ON I ON I –10 –

C 2 T O 1. B D i .....................................................................................................1 M L B ................................................................................................1 2 D I O p .............................................................................................1 2 P a I n ................................................................................................1 2 S I n ...................................................................................................1 2 G e F C ...............................................................................................1 2 E d ...................................................................................... . . 9 2 P H D C .................................................................................1 2 P H T e D e C ......................................................1 2 C a M D C .........................................................................20 2-2-5. C a M S C .........................................................................2 2-2-6. P F M D C ....................................................................2 2 R C i ..........................................................................................................2 2 R b + L V D e ..................................................................2 2 P r C i ..................................................................................................2 3 P S U ..............................................................................................2 4 M e .........................................................................................................2 4-1. P H M e ..........................................................................................2 4 P H C a M e ..........................................................................2 4 I R F M e ................................................................................2 4 P F M e ........................................................................................2 4 D e ................................................................................................................30 l

1. Block Diagram Theblockdiagramof thisprinteris shownin Fig.2-1. DaLa (From Host Comp.tcr) 8 [ +}; 7 .~ Printer Mechamsm ~-———. IAutomat,c ~ Parallel Driver ~SheetFeederl Interface .——— —. Control Gate Array Print Head Panel DIP ~ju~ Detectors Switch !’ EPROM Driver 4 Carriage 64 KB Motor 1 RAM Paper Feed Motor I Main Logic Board Power s Unit ( AC Power Fig.2-1 BlockDiagram (1) MainLogicBoard ThisboardreceivesdatafromthehostcomputerandstoresitintheRAMin theorderofarrival.TheCPUon this boardreadsthedatafromtheRAM,andeditsit accordingto theprogramstoredin theROM. Whentheeditingis completed,variousdrivesignalsfromtheCPUare sentto theprintermechanismto perform printing. 1 2 3 4 5 6 7 CPUM50734SP G Controlsthisprinter. EPROMP.PD27C51264K-byte . Containstheprogramwhichexecutescontrolof theprinter. RAMHM62648K-byte G Usedas stackarea,workareaand databufferof theCPU. Parallelinterface Gatearray(customIC) . Inputsor outputsseveralsignals. Driver G Thedataeditedby theCPUandgatearrayare sentto theprintermechanismafterconversionto the signal fortheprintheaddrive,carriagemotordriveandpaperfeedmotordriverespectively. ControlPanelBoard . Thispanelcircuitis formanualoperationof theprinter. (2) PrinterMechanism Theprintermechanismconsistsof a printhead,carriagemotor,paperfeedmotoranddetectors. (3) PowerSupplyUnit ACpoweris convertedto 25VDCand5VDC. – 13–

2. Main Logic Board I O 2-1-1. P a I n Communicationsbetweenthehostcomputerandthisprinterarefacilitatedviaparallelconnectors.Thissectionexplains thehandshakeof thisinterface. Thedatainputcircuitof thisinterfaceis shownin Fig.2-2. CNI 1- ~ ————————————————————, DATA1I DINO] LS273 LS244 ; DO r DO ( 1 I I 1 r I I DQ AY I 1 I I I [ DATA8 DIN 7 \ CLK i D7 ii - D7 I A @ + 5V != ~ —1 STBI I STROBE I I BUSY I I I II Q I I I ACK I l— I WR Iii I GateArray I CPU L ————————— — — — — —— ——— ———— I L Fig.2-2DataInputCircuitwithParallelInterface Thefollowingisan explanationof thishandshake. (1) (2) (3) (4) (5) WhentheBUSYsignalisLOW(Ready),thehostcomputer outputs 8-bitdata 1through8 to theconnectorCN1. Pin 1carriestheS&OBE pulsesignd-hm thehost~mputer & theprinter.ThissignalisnormalIyheldHIGH by thehostcomputer.Whenthehostcomputerhasdatareadyfortheprinter,it setsthissignaltoLOWforat least 0.5p.s. Thegatearrayofthemainlogicboardreadsdata1through8atthetimeofSTROBEsignalfall,andthenturnsthe BUSYsignalandP-BUSYsignaltoLOW. WhentheBUSYsignalofthegatearrayissettoLOW,theBUSYsignalofconnectorCNlwillbeturnedtoHIGH, notifyingthehostcomputerthatdatacannotbe accepted. TheCPUisinformedviatheDOdatalinethattheP-BUSYsignalisLOW.TheCPUthensettheRDsignaltoLOW andread thedata. Uponcompletionofthedatareading,theCPUnotifiesthehostcomputerofthedatareceivablestatebysettingthe BUSYsignalofconrtectorCNIandtheACKsignaltoLOW.Thisconcludestheexpkmationoftheparallelinterface handshake.Thefollowingchartshowsthetimingchartof thehandshake. –14 –

““K uw 9 D ) I STOROBE J-Ill TT - i BUSY I I M t ( Fig.2-3TimingChartof ParallelInterface 2 - S e r ( o When the serialinterfaceis used,an optionalSerial-ParallelConverteris requiredto be installed.The converterwill changethevoltagelevel(RS-232C~ TTL)and thedatatransfermethod(Serial~ parallel). C 1 C B I R R , I 4 1 T T T I 1 T= P50 D P , D P D P D P , P D P D P , D$- P S P P 1 I I P I P B P I I M Fig.2-4 SerialInterface(in theSeriai-ParaiielConverter) – 15-

TheIC101isa dualRS-232Cdriver/receiverwhichincludesa capacitivevoltagegeneratorto supplyRS-232Cvoltage levelsfroma single5Vsupply. DatafromthehostcomputerissentfromRXDviaICIOlandisinputtotheMPU.SerialdatainputtotheMPUisconverted intoparalleldata,andoutputto themainlogicboard.Conversely,paralleldatareceivedby theMPUisconvertedthere intoserialdata,andoutputto theTXDterminalviaIC101. TheCTSterminalis hardware-connected,notsoftware-connected.(Thissignalis notchecked.) Thisprinteremploys3 differenttransfermethods,whichcan be selectedusingthedip switches.(Referto Chapter1, 4-3 (1) (2) (3) SettingDip Switches) DTRmethod TheDTRsignalisconsidereda BUSYsignalat thehandshake,andwhenthedatabuffercapacityis256bytesor less,theDTRsignalisgivena markedstatus,meaningitcannotreceivedata.Whenthecapacityofthedatabuffer increasesto 512bytesor moreduringprinting,theDTRsignalis givena spacestatus,whichindicatesthatit can receivedata. XoN/Xommethod Whena handshakeiscarriedoutwiththehostcomputer,theXoN/Xommethodmakesuseof ASCIIcodes(DCl andDC3).(DCl andDC3arecalledXONandXom,respectively.)Whentheprinterbufferisfull,DC3(ASCIIcode 19)isoutputtotheTXDterminal,andthecomputerreceivesarequesttostopdatatransfer.ThepnnteroutputsDC3 untilit (thecomputer)stopsdatatransfer.Duringprinting,whenthebufferfullstatusiscancelledanddatacanbe received,DC1(ASCIIcode17)isoutputtotheTXDterminal.WhenDC1isoutputfromtheprinter,thecomputer followsthedataformat,andbeginsdatatransfer.DatatransferwillcontinueuntilDC3isoutputagain. ETX/ACKmethod Thedatablockisconfiguredasshownbelow,buttheinitialSTXcodeisnotnecessary.Whenan STXcodeissent fromthehostcomputer,that1byteisignored.WhentheETXcodeisreceived,that 1byteisnotregardedasdata, anACKorNACKcodeissenttotheTXDterminal,andthehostcomputerisinformedthatdatareceptionhasbeen completed. Datablockform: STX DATA(8 KBor less) ETX +( — ( D B S stop B I ? 3 4 5 6 7 ( B — 1 0 1 — 1--- 0 ,; –-+ I I Fig. 2-5DataFormat –16 –

(1) DTRmethod R I I I I I I ‘ T ~ “ Ill O I , u 12 All I 2 @N F (w t e a t d b b 2 h l ) @ N E ( t e a t d b b b m (2) XoN/xoFFmethod R X X X x X();t ‘ T 1 1 1 1 1 1 II 1111 D II R I 1 O B @ N F ( t e f t d b b b l @ N E ( [ e a t d b b 1 b m (3) ETX/ACKmethod R T D R O B I A ( 1 F F F N F F– II II II v E 1111 E E E E E II I I I II I ‘1 t I I I I 11 I @ N F (w t e a t d b b 2 h l ) @ N E ( [ e a t d b b b m @ E ( t d b b e ) @ P E F E B O f Fig. 2-6DataInputTimingChartwithSerialInterface – 17–

2 General Flow C A generalflowchartof editingandprintingoperationsispresentedin Fig.2-7. POWER ON 1 I & T Read Data NO YES Control Code Data Processing Storage 4 t ( L Q Data Processing (Print out of data) or Printing NO 4 Return Action Fig.2-7GeneralFlowChartofEditingandPrinting –18 –

2-2-1. Editing Datastoredin theRAMisread outsequentiallyby theCPUand theneditedaccordingtoa functioncodethathasbeen specifiedin advance. ThiseditingtakesplacesuntiltheCR or CR+LF codeappearsor the linebufferbecomesfull. 2-2-2. P H D r C i Editedprintdatais outputto terminalQofLS273in thegatearraythroughtheCPUdatabus,asregulatedby theissue timingofa WR signal.However,as forpin9 (HD9)oftheprinthead,thedataisoutputtotheterminalQofLS74upon issueof thenextWR signaI.Whenall thedataisreceivedforprinting,an energizedtimecontrolsignalis outputfrom portP04 of theCPU.ThisallowstheprintdatatobeoutputtoHD-1-9 of thegatearray.WhentheprintdataisHIGH, thetransistorTR8willbe turnedONfor 335pS, energizingtheprintheadsolenoidto drivetheprinthead. + 5V \ D1 p H / Fig.2-8PrintHeadDrivingCircuit 2-2-3. P H T e D e C .Theprintheadtemperaturedetectioncircuitprotectsagainstdamagewhentheprintheadheatsup abnormally. Fig.2-9 showsthiscircuit. Theprintheadhasa thermistortoshowthetemperatureoftheheadsolenoids.Thisthermistors anelementthatconverts temperatureintovoltage.Itsoutputvoltageisinputto an analogpinof theCPU.TheCPUcomparesthisinputvoltage againstitsreferencevoltageVwFto findoutthetemperatureoftheheadsolenoidsandcarriesoutthefollowingoperations dependingon thetemperature. 0 Ts95“C G Normalprintoperations @ 95“C c T < 105‘C . Intervalprinting;The print head stays for approximately0.5 secondwheneverit finishes l-line. When the temperaturefallsbellow95”C,normalprintingis resumed. @ 105‘C ST . Thelinebeingprintediscompleted,thenprintingstops.Whenthethermistor’stemperaturefallsbelow105“C, intervalprintingisresumed. - 19–

willnotoperatejustbyconnectingittoa powersource.Themotoroperatesonlywhena drivepulseisfedtoit,buteven then,it turnsonlya certainangle.This steppingmotoris characterizedby 4-phasestepping.Controlof the motoris facilitatedbyphase1-2excitation.Thefollowingshowsthecarriagemotordrivecircuitandthecontrolsignalgenerated by thephase 1-2excitationmethod. + + C 1 * C p P P P Carriage MOICN Fig.2-10CarriageMotorDrivingCircuit ;ON : L ; 01 : I ; , I : I ; ,,; , 1 03 ; : ( F L R F R L ~ Fig.2-11CarriageMotorDrivingSignals Theutilizationof voltageappliedto thecarriagemotoris describedbelow: Voltageappliedtothecarriagemotorischangedbysetting Mode port P30 of the CPU to HIGH or LOW and by turning Voltage Application transistorsTR12andTR13ONor OFF. Operation: +25VDC MotorDrive WhenTR13isON,+25Vissuppliedtothecarriagemotor Standby: +5VDC HoldingBias andwhenTR13isOFF,+5Vis suppliedto themotorvia diodeD1. –20 –

2-2-5. Carriage M S C Sincethecarriagemotorisa steppingmotor,tie carriagecanbestoppedatadesiredpositionbycontrollingacceleration and deceleration.Thecarriagecan alsomovebackward. Therotationalspeedof thecarriagemotoris setby thenumberof pulsesper timeunit.Thecharacterpitch(horizontal chamctersize)in eachprintmodeis determinedby changingthisrotationalspeed(orcarriagetransferspeed). (1) Atstart-up of themotor: Thenumberofpulsesinputto themotorincreasein steps,reachinga certainfrequency. (2) To stopthemotoc Thenumberof pulsesinputto themotordecreasesin steps,in orderto graduallybringthemotorto a halt. (3) Whenprintingiscarriedout: Pulsesof a uniformpulsewidthare suppliedforprinting. 2-2-6. P F M D r C Again,a steppingmotoris employedas thepaperfeed motor,whichturnsa certainangleonlywhena drivepulseis received.This4-phasesteppingmotoriscontrolledbythephase1-2excitationmethod.Thefollowingshowsthepaper feedmotordrivecircuitand thecontrolsignalgeneratedby thephase1-2excitationmethod. Fig.2-12PaperFeedMotorDrivingCircuit -21 –

Mode Voltage Application Operation +25VDC MotorDrive Standby: +5VDC HoldingBias d Voltageto thepaperfeedmotorischangedby settingCPUportP31toLOWor HIGHandby turningtransistorsTR19 andTR18ONor OFF. WhenTR18is turnedon, +25Vis appliedto thepaperfeedmotor. WhenTR18is turnedoff, +5Vis suppliedto themotorviadiodeD3. - 22–

2 R C i T RESETsignalinitializesthecircuitelementsandpreventsoperationerrorswhenthepoweris turnedon. TheRESETsignalisoutputforapprox.34ms.whenthepoweristumedon,orwhiletheRESET(INPUT-PRIME)signal is beingoutputfromthehostcomputer. .———————— — ——— CN1 T I I / I I + 5V + .5V I A \ t I d +25V I OUT D5 1 1 I HD IC6 ~ , WD%? Do — DOR& GND J= c1 1 ) )) I r I IN-PRIME —— HDI ( HD9 I Fig.2-14ResetCircuitand ProtectionCircuit. G PowerOnReset 1 Whenthepoweristurnedon,theRESETsignalisoutputtoPin5of IC6(M51953BL)forapprox.34msec.This timelengthis determinedby externalcapacitorCl 1(0.lP.F),andit canbe calculatedby the followingformula. T = 0.34 X Cll (PF)WK. 2 ThisLOWsignaltriggersRESETcommandto theCPUandtheRESETterminal(RES)of thegatearray. 3 ResettingtheCPUandthegatearraywillignoreallthedrivesignalsforthecarriagemotor,thepaperfeedmotor and theprinthead,preventingoperationerrorsat powerON. . Resetby InputPrimeSignalfromHostComputer 1 Theinputprimesignalfromthehostcomputerisoutputtopin 31of theconnectorCN1. 2 ThisoutputsignalwillsettheterminalINIT2 oftheCPUtoLOW,executinginterruption.Then,theCPUwillbe initialized. –23 –

2 R b + V D Avoltage-detectingIC (IC6inFig.2-14)detectsmomentarydropsin voltageorunstablevoltagesupply(duetopower failures,etc.)on the+5Vline.If thevoltageon the+5Vlinefallsbelow4.25V,theRESETsignalappearsat theoutput terminalof the voltage-detectingIC. V V 91 5pAt () 5 1 + R2:: . . 1,~sv A4 GND Cd OUT VoltageA –— – —— ~ * t o V A = X ( [ w Fig.2-15EquivalentCircuitof Fig.2-16OperationalTimingChart Voltage-DetectingIC 2 PrWection Circuit Thisprinterisprovidedwitha protectioncircuitwhichshutsofftheprintheadandmotordrivingcircuitsin theeventof a CPUmalfunction.(Referto Fig.2-14) TheCPUnormallyoutputsa LOWlevelsignalfromtheterminal(JVDOUT). However,if theCPUmalfunctions,itcan notoutputthissignal. WhentheLOWlevelsigmlisnotoutputfromtheCPU,theinputterminal(Cd)ofthevoltage-detectingICgoestoLOW andtheRESETsigmlisoutputfromtheoutputterminal(OUT)ofthevoltage-detectingIC.Bythissignal,theCPUand thegatemay arereset;andtheprirtthead,thecarriagemotorandpaperfeedmotordrivingsignalsareignored,protecting theprinterfromtheCPUrunaway. –24 -

3. Power Supply Unit Fig.2-17showsthepowersupplyunit. TheACpoweris steppeddownto Vsl andVS2by thepowertransformer.TheVsl powerisfull-waverectifiedby the DB1rectifierstackand smoothedby electrolysiscapacitorC4. The smoothedDCpoweris convertedintothe stable 25V’DCpowerby thechoppercircuit,whosemaincomponentisIC1.TheVS2poweris full-waverectifiedby theDB2 rectifierstackandsmoothedbytheelectrolysiscapacitorClO.PartofthissmoothedVs20utputisconvertedintothestable 5VDCpowerby fixedvoltageIC2. VoltageRange MaximumCurrentoutput Service Typeof circuit 120VAC 0.8A Input 220VACand240VAC 0.5A 5VDC?2.5% 0.83A Forlogiccircuitdrive, Dropper Formotorholding output 25VDCti% 1.89A Forprintheaddrive, Chopper Formotorholding +25V t +5V Fig.2-17PowerSupplyUnit –25 –

Wewillexplainthechoppercircuitin termsofFig.2-18,a simplifiedversionofFig.2-17.IC1isa pulse-widthcontrol switchingregulator.It has a referencevoltagesection,oscillationsection,pulse-widthcontrolsection,and power transistors.Fig. 2-19showsan equivalentcircuitforIC1. ThechoppercircuitswitchesthepowertransistorsinIC1onandofftodivideinputvoltageVINintopulsesandsmoothes thosepulseswithchokecoilL2 andcapacitorC9to obtainthedesiredoutputvoltageVOUT. Since thepulse width control section determines theratio of thetimethatthepower transistorsareonandoff bycomp~ing the output voltage with the reference voltage, the output voltagecan be heldsteady. Inorderwords,iftheoutputvoltagefallsbelowthereferencevoltage,thepulsewidthcontrollerextendsthetimethatthe powertransistorsareon,thusraisingtheoutputvoltage.TheoutputvoltageVOUTcanbe expressedwiththefollowing equation. Vour = VIN. TON = VIN.+ TON+ TOFF TON : TOFF : T: Durationthepowertransistorsareon Durationthepowertransistorsareoff TON+ TOFF(constant) DiodeD1formsa pathwaythroughwhichtheenergyaccumulatedonchokecoilL2whilethepowertransistor dischargedwhilethepowertransistorsare off. V Ic 1 —————————._—————— ———— I PowerTransistor 1 LZ I 1— o Y o I I I I PulseGenerator I I Block I I 1 L D1 R3 I + I 4) I z C9 i i I o I o L _ – Fig. 2-18ChopperCircuit O s F C r-=w- 1 \;w’M 3 ‘ s Q- I I v ( F 1 r D Inh RF Q-- i 4 G 1 a onis Fig. 2-19 Equivalent Circuit for Voltage Regulator IC1 –26 –

4. Mechanism P M Theprintheadconsistsof 9 needlewiresand9 printsolenoids.Thefollowingexplainshoweachneedlewireoperates duringprinting. (1) Whentheprintsolenoidisenergized,theclapperisattractedbytheironcoreand theneedlewireisdriventoward theplaten. (2) Thisneedlewirehitstheplatenviatheinkribbonandpaper.Asingledotisprintedon thepaper. (3) Whentheprintsdenoidisale-energized,theneedlewireisreturnedtoitsoriginalpositionbyreboundenergyand springandclapperholder(leafspring)force. P G P I I S S N W I R C H C 1 I I G D 1o . I C B P I Fig,2-20Outlineof PrintHeadMechanism 4-2. P C M printheadcarryingmechanismconsistsmainlyofa carriage,timingbelt,carriagemotor,andhomepositiondetec- tor. (1) (2) (3) Carriage Thecarriageissupportedhorizontallyby meansofthecarriagestayandrearangle,anditmovesfromsidetoside withtheprintheadmountedaboveit. A timingbeltisclampedto thebaseof thecarriageanda plateis mounted at thebaseforhomepositiondetection. TimingBelt Thetimingbeltis suspendedbetweenthetimingpulleyof thecarriagemotorandthetimingpulleyof thetension lever,and it maintainsa constanttension. Thetimingbeltisalsoclampedtothebaseofthecarriagesothatitcanmovethecarriageaccuratelywithdriving forcefromthecarriagemotor. CarriageMotor Thecarriagemotorisa HB (Hybrid)type,four-phaseand 192-polepulsemotor,whichisdrivenbypulsesignals fromthecontrolcircuit.Therotationalratedependsonthenumberofpulsesperunittime.Byvaryingthisrotational rate (thatis,thecarriagecarryingrate),thesizeof thehorizontalletterscanbe changedin eachprintmode. –27 –

T B C M T P Fig.2-21PrintHeadCarryingMechanism 4 R M inkribbonfeedmechanismislinkedtotheprintheadcarryingmeehanismdeseribedpreviouslysothattheinkribbon is woundup automaticallywhilethecarriagemovesleftor right. Theribkm feedmechanismisdrivenbytorquefromthecarriagemotor,andcarriagemovementallowstheidlergearto rotate. Thisrotationisconveyedsequentiallyto thegearsthatworkto windtheribbon.Thecarriageis equippedwitha clutch leversothatthedirectionofcassettegearrotationremainsconstantregardlessofthedirectionof theidlergearrotation. C G f?” \ I G G t C L Fig. 2-22RibbonFeed Mechanism - 28–

4-4. Paper Feed Mechanism Thepaperfeedmotoris a PM type,four-phaseand48-polepulsemotor. Minimumpaperfeedis setat 1/216inch. Therearetwowaysoffeedingpaperavailablewiththisprinter:FrictionmethodandTractormethod.Youcanselectone of thetwomethods,usingthereleaselever. I Positionofreleaselever l Linkagebetweentractor gearand tractorclutch I Not I Linked I Platenrollerandholderroller Pressed Not Releaseleverpositiondetector Closed Open I Paperfeedingmehd I Friction I Tractor I (1) Friction Method Frictionmethodis selectedwhenthereleaseleveris position@. Withthismethod,paperispressedbetweentheplatenrollerandtheholderroller;therefore,paperisfedastherollers turn. Asthepaperfeedmotorisdriven,themotorgear,throughtheidlergear,turnstheplatengearinthepaperfeeding direction.However,sincethetractorgearandthetractorclutcharenotlinkedatthistime,thetractorunitwillnot be driven. (2) TractorMethod Tractormethodis selectedwhenthereleaseleverisposition@. Paperfeedingisfacilitatedbyrotationofthesprocketpinofthetractorunit.Whenthetractormethodis selected, the tractorgearis linkedto the tractorclutch,enablingthedriveforcegeneratedby thepaperfeed motorto be transferredto thetractorunitviatheidIergearand theplatengear. P G T G L o Fig.2-23PaperFeedMechanism –29 –

(1) (2) (3) (4) D HomePositionDetector A leafswitchis usedin thehomepositiondetector,whichis setat theleftsideof theframeunit. Open/CIOsesignalsaregeneratedaccordingto thepositionoftheshieldplatemountedat thebaseof thecarriage, and theprintingpositionisdeterminedby thesesignals. PaperOutDetector Apaperoutdetectoris locatedat thepaperinsertionslit.Whenpaperispresent,theprecisionsnap-actingswitch of thedetectoris CLOSE.Assoonaspaperrunsout,theswitchis settoOPEN,outputtinga paperemptysignal. Fig.2-24HomePositionDetector Fig.2-25PaperOutDetector BailLeverPositionDetector Upondetectingthepositionofthebaillever,theautoloadingoperationwillbeactivated.Theleafswitchis open whenthebailrollersisin contactwiththeplatenroller,andit is closedwhenthebailrolleris sepmatedformthe platenroller. ReleaseLeverPositionDetector Theleafswitchis closedwhenthereleaseleveris in thefrictionposition,andis openin thetractorposition. +5VL R D e S L Fig.2-26BailLeverPositionDetector +5V L R D S 7 L S Fig.2-27ReleaseLeverPositionDetector –30-

In thischapter,a briefexplanationisgivenof themethodsof adjustments. Followtheinstructionwhenmakingmaintenanceinspectionsorwhenreplacingpartstocorrectmalfunctions. 1. Gap AdjustmentBetweenPrintHeadand Platen............................................33 1-1. M e G B P H a P ................................................3 1 A d GapBetweenPrintHeadandPlaten..................................................33 Adjustmentof TimingBeitTension..................................................................34

M B P P - Removetheuppercaseunitaccordingtoprcxxdures describedin Chapter4. Settheindexlever 0 at steptwo. Removetheribbonguide @ . Inserta thicknessgauge @)betweentheprinthead (@ rmdtheplaten @ ,andmeasure thegap. Thismeasurementmustbe carriedoutat thecenter 0. Thestandardgapvalueis0.30to0.40mm. If thegapdoesnotliewithinthisrange,adjustitby followingtheprocedurein item1-2. Step2 Fig. 3-2Positionof AdjustmentLever A B P P Fig.3-1GapAdjustment Ifthegapdoesn~tliewithinthestandardrange,adjustitby A carryingoutthefollowingprocedures. (1) RemovetheprintermechanismacccxdingtotheprO- ceduresdescribedin Chapter4. (2) Loosenthe screw@)securingthe adjustmentlever @ andtheindexlever~. (3) Holdingtheindexlever @ atthepositionshownin Fig. 3-2, shift the adjustmentlever @ for gap adjustment. Whentheshaftisloweredtotheplatenside,thegap is reduced,and whenloweredto theoppositeside, (4) [0 Fig.3-3GapMeasurement thegap is expanded. \ \- Afteradjusting,tightenthe screw @ . Fig.3-4Gap Adjustment –33 -

Thetimingbelt tensionshouldbe set at from 14g to 18g. (Thebelt tensionmustremeasured with thedesignatedtensiongauge @) .) Afterthebelt hasbeen usedforalong time, however,it maybe difficultto maintainprescribedtensionbecauseof belt deteriorationor wear.In thesecases,makeadjustmentsby followingtheprocedureslistedbelow. (1) (2) (3) (4) (5) (6) (7) (8) (9) (lo) Removetheuppercaseunitaccordingto theproceduresdescribedin Chapter4. MovetheCarriageunit@ rightandlefttwoorthreetimesinordertofamiliarizeyourselfwiththetimingbelt @ . Settheindexlever @ at step2 as showninFig. 3-2. Movethecarriageunit @ to therightend. Setthearm @ of the tensiongauge @ 152mmaparthorn theframeL. Movethetensiongauge @) in thedirectionoftheplaten (@untilitstops.Thenplacethearm @ of thetension gaugeon thetimingbelt O . Loosenthescrew @ . Insertaflat-bladescrewdriverintothesquareholeofthetensionarm @)andadjustthebelttensionbymovingthe tensionarm @)leftorrigh~ Whenthebelthasbeenadjustedto theprescribedtension,tightenthesettingscrew @ . Ifthebeltcannotbe adjustedto theprescribedtension,replaceit withanew timingbelt @ . Fig. 3-5Adjustmentof TimingBelt- ‘ IIA @ Fig.3 TensionMeasurement -34-

disassemblyandreassembly. 1. 2. 3. 4. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Disconnecttheprinterfmm thewalloutletbeforeservicingit. Assemblyis thereverseof disassemblyunlessotherwisespecified. Afterreassembly,coatthe screwheadswithlockingsealant. Lubricationinformationis notprovidedin thischapter.Referto item2 in chapter5. UpperCase Unit..................................................................................................37 E, A PrinterMechanism..............................................................................................37 PowerSupplyUnit ..............................................................................................38 Main LogicBoard................................................................................................38 Fuses....................................................................................................................39 PrintHead ............................................................................................................39 CarriageMotorUnit ............................................................................................40 PlatenUnit ...........................................................................................................40 TractorUnit..........................................................................................................41 DetectorUnit .......................................................................................................41

(1) Turnoff thepowerswitch @ . (2) Remove G Printercover . Rearcover . Platenknob @ G Fourscrews@ (3) Movethecarriageunit @ overtothenghtsothatit alignswiththecut-outof theuppercaseunit @ . (4) Remove G Uppercase unit @ . Controlpanelboard (@ 2. Printer Mechanism (1) Remove G G G G G G G G G G Uppercase unitaccordingto the procedurede- scribedin item 1. Releaseleverspring @ Stopring @ Releaselever @ Releaseshaftunit @) Threetappingscrews@ Connectorcover @ Liftupthetaboftheconnectorcover,andslideit to therightforremoval. Printerheadcable@ Threeconnectors@ Printermechanism@ Caution in assembly: Align the A markon thereleaselever @ withthe A markon the releaseshaftunit @ to installthe releaselever @ . –37 -

(1) Remove Uppercase unit accordingto the procedurede- scribedin item 1. Connector@ Twotappingscrews @ Twotappingscrews @ Twoscrewso Powerswitch @ Powersupplyunit @ 4. Main Logic Board (1) Remove G G G G G Printer mechanismaccordingto the procedure describedin item2. Power supplyunit accordingto the procedure describedin item3. Comector @ Threetappingscrews@ Mainlogicboard @ –38 -

describedin item3. (2) Inspeet G FuseF1 @ c FuseF2 @ G FuseF3 @ Defective~ Replacefuseas follows: ACVoltage F1 120V 5’ITIA 220V1240V 630mA Destination F2,F3 1 US,UK,AS 5TT3A EC, HK,WG,LA, SU EAK3.15A Newfuseblown+ Inspectcircuit 6. Printer Head (1) Remove G G G G G G Printercover Inkribboncartridge Conneetorcover @ Twotappingscrews@ Headcable@ Printhead@) WARNING: Theprintheadbecomeshotafterprintingsowait forit tocoolbeforeremovingit. (2) Adjust . Gapbetweenprintheadandplaten Referto item1of Chapter3. –39 –

(1) Remove G G G G G Printer mechanismaccordingto the procedure describedin item2. Cordfastenerbindingtheleadwires Connector@ Twoscrews @ Carriagemotorunit @) 8. Platen Unit (1) Remove G G G G G G G G Printer mechanismaccordingto the procedure describedin item2 Twonuts @ Tractorstay @ Stopring @ Groundcontactspring @ PlatenholderR @ PlatenholderL (@ Lift the tabs @ of platen holdersR and L to allowremovalofplatenholdersR andLfromthe frame. Platenunit @ Cautionin assembly: Whenassemblingtheplatengearassembly@onthe idlergear@, aligntheteethofgearAandgemB(be sureto aligntheholes~ in thetwogears). (2) Adjust G Gapbetweenprintheadandplaten. Referto item 1of chapter3. –40 –

scribedin item 1. Stopring @ Releaselever@ Twonuts @) Twotractorbushings@) Liftthetab@of thetractorbushtoallowremowd of thetractorbushfromtheframe. Tractorunit @ Caution in assembly: . For reassembly,hold the sheetguide @ at the centerofthetractorshaftandpushtheguideinto theprinter. . Alignthemark(A or 1)on thereleaselever@ withthemark(Aor 1)on thereleasegear@ to installthereleaselever@. 10. Detector Unit (1) Remove G G G G G G G Printer mechanismaccordingto the procedure describedin item2. Cordfastenerbindingtheleadwires Sub-guide@ Liftthesub-guidetoremovethecut-out@ from theprojectionandslideit to theleftto remove. PEdetectoro Screw @ Homepositiondetector@ Connector@ –41 –

1. Maintenance........................................................................................................45 1-1. Cleaning.................................................................................................................45 1-2. Checks....................................................................................................................45 2. Lubrication...........................................................................................................46 2-1. Lubricant................................................................................................................46 2-2. LubricatingMethod...............................................................................................46 2-3 LubricatedAreas...................................................................................................46 Em

1. Maintenance In orderto maintaintheoptimumperformanceof thisprinterand topreventtrouble,maintenancemustbe carriedout accordingto thefollowingitems. 1-1. (1) (2) 1-2. Cleaning Removalof dirt Wipeoffdirtwitha softclothsoakedin alcoholorbenzine. *Note: Do not use thinner,trichleneor ketonesolventsbecausetheymaydamageplasticparts.Alsoduring cleaning,be carefulnotto moistenordamageelectronicparts,wiring,or mechanicalparts. Removalof dus~pile,etc. Vacuumcleaning(withan electriccleaner)isprefen’ed.Removealldus~etc.,insidetheprinter. *Note: Aftercleaning,checktheoil level.If it is notadequatedueto cleaning,replenishit. Checks Checksmustbecarriedoutat twolevels:a “dailycheck”whichtheoperatorcaneasilycarryoutduringoperation,and a “periodiccheck”whichanexpertshouldcan-yout. (1) Dailycheck Whenthe printeris usedon a dailybasis,checkthatthe printeris usedproperly.Makesure thatthe printeris operatingunderthebestconditions. G Is anypaperstuckin thepaperboxor printercase? G Is thecartridgeribbonsetat therightposition? . Is thereany foreignmatterinsidetheprinter?(Removeif any.) . Is theprintheadgettingexcessivelydirty? (2) Periodiccheck After6 monthsorprinting1millionlines,theperiodiccheckandlubricationmustbe carriedout. . Checkfordeformationof springs. G Checkthegapbetweentheplatenandtheprinthead. G Removedust,m etc.,aroundthedetectors. –45 -

2. Lubrication Lubricationis veryimportantto maintainoptimumperformanceandto preventtrouble. 2-1. Lubricant The type of lubricant greatly affects the performance and durability of the printer, especially in a low temperature environment. We recommend use of the grease and lubrication oils listed below for this printer. I Productname I Maker I FLOILGB-TS-OandGB-1OOI KantoChemicalsCo.,Ltd. KF96-1OOOCS andKF96-SP ShinetsuChemicalIndustry Mobil1 Mobiloil 2-2. Lubricating Method Whenlubricationiscarriedoutinassemblyanddisassembly,washpartswelltoremovedustanddirtbeforelubrication. Lubricationmustbe carriedoutregularlyonceevery6 monthsorafter1millionlineshavebeenprinted.Lubricationis necessaryirrespectiveof theregularlubricationwheneverlubricantbecomesdeficientaftercleaningorwheneverparts havebeendisassembledorreplaced. 2.1. 1.llhriontd Areas - -. ---- ------ --- --- NO. LubricatingPoint Grease/Oil 1 Rubbingsurfacesofidlergear 16x72x 0.5 andidlergearshaft GB-TS-O 2 Rubbingsurfacesof gear40 x 0.5andgearshaft GB-TS-O 3 Rubbingsurfacesof timingpulleyandpulleybushing GB-1OO 4 Rubbingsurfacesoftimingpulleyandpulleyshaft GB-TS-O 5 Rubbingsurfacesof twotractorbushingsandtractorshaft GB-TS-O 6 Rubbingsurfacesofidlergear 17x 41 x 0.3andclutchlever GB-TS-O 7 Rubbingsurfacesofidlergear 16x 1-40x 0.3andcarriage GB-TS-O 8 Rubbingsurfacesofribboncassettegearandcarriage GB-TS-O 9 Rubbingsurfacesof idlergear43 x 63 x 0.3andcarriage GB-TS-O 10 Rubbingsurfacesofrear angleandcarriage GB-TS-O 11 Rubbingsurfacesof Adjustingleverandframe GB-TS-O 12 Rubbingsurfacesof bushingandcarriagestay Mobil1 13 Rubbingsurfacesofbailrollerandshaft KF96-SP 14 Rubbingsurfacesoftimingpulleyandstopring GB-TS-O 15 Rubbingsurfacesof tractorholderandtractorcover KF96-1OOOCS 16 Rubbingsurfacesofreleaseshaftandframe GB-TS-O 17 Rubbingsurfacesofreleaseleverandtractorshaft GB-TS-O 18 Rubbingsurfacesofidlerassy711andgearcover GB-TS-O 19 Rubbingsurfacesof wavewasherandpoly-slider GB-TS-O 20 Rubbingsurfacesof idlerassyTRXandgearcover GB-TS-O 21 Rubbingsurfacesofrear angleandidlerassyTRX GB-TS-O –46 –

Repalrby PartsReplacement............................................................................59 4-1. DoesnotOperateatAllwithPoweron...............................................................59 4-2. PowerSupplyCircuitAbnormal..........................................................................60 4-3. DefectiveMotorOperation...................................................................................61 4-4. DefectivePrintHeadOperation...........................................................................62 4-5. DefectiveInterfaceOperation..............................................................................63

(1) Thefirstmethodis tomakerepairsthroughunitreplacements.Thetwodisplaycodesappearingin theflowchat aredefinedasfollows:@indicatesmainlogicboardreplacement;and@indicatesprintermechanismreplacement, to be carriedoutif problemhasnotbeencorrected. 0 MainLogicBoardReplacement @ PrinterMechanismReplacement Checkagainatthistimewhetherthereplacedunitismalfunctioning,(Thisisdonetoruleouttroublecausedbyimproper contactof connector.) Replacxxbleunitsincludethefollowing: G Powersupplyunit . Mainlogicboard . Printermechanism Inreplacingtheseunits,alwaysreferto theunitreplacementchart. (2) Thesecondmethodis to makerepairsby partsreplacementtoreplacedefectiveelementsinsidea particularunit. (Note1) Beforestartingtorepair, be sureto checkvisuallythecontactofthe connectorand themountingof theIC in theIC socket. (Note,2) Alwaystumoffpowersourceandremovepowerplugbeforereplacingany unitsor parts. (Note3) All chak itemsshownin the flowchartmustbe checked.Otherwise,newlymountedpartsor unitsmay becomedarnaged. (Note4) If, in theprocessof makingrepairs,thereisanyconfusionaboutproperprocedures,restartthejob fromthe beginning. (Note5) Be Carefulto avoidinjuryhorn staticelectricitywhenhandlingICSandmainlogicboard. -51-

UnitExchangeSequence Category Problem Details Power Main Printer Remarks supplyunit logicboard mechanism Specificdisplay lamponlywill 3 1 notglow 3g Specificswitch c onlycannotk 1 “: input j Buzzerdoesnot sound(sound 1 2 volume inadequate) % Srrangesounds duringoperation 1 2 ~ ?.? No motor B holdingpower 2 1 s (powervery weak) ~~ ;;;;~!ght 2 1 2 1 Replaceinkribbon .2 +’ Inkribbon E’ snagged 2 1 (wiresticksout) ~e Absenceofpaper 2 1 ~j notdettxted h Leverposition 1 2 notdetected Incorrectprinting 1 CheckI/Fcable Inkribbonnot g forwarded 1 ~ No operationat g DIPswitch 1 setting : 3 Faultyoperation g whenpoweris 1 a turnedon/off a% Abnormalmotor ~ operatingspeed 1 2 u (slow) Fuseblown duringoperation 3 1 2 Note:Thefigures1,2 and 3 meanthepriorityof replacement. -52-

@ * Turn power off. * Remove l/F cable. * Mount ink ribbon. * Set paper. * Move carriage to center. ] Turn power on. I YES * I See (6) and (7) waveform in item 8 of chapter 7. NO @ Replace main logic board. Replace printer @ Replace printer mechanism. mechanism. I @ NO NO I @ Replace main logic board. @ Replace printer mechanism. ,I (9 -53-

Replace main logic board NO operation is normal? *2 See (8) and (9) waveform in item 8 of chapter 7. YES NO motor drive waveform @ Replace main logic board. Replace printer @ Replace printer Turn power off. mechanism. mechanism. I I Holding paper feed switch, Self turn power on. printing: @ NO * I See (6) and (7) waveform YES in item 8 of chapter 7. NO @ Replacemainlogic board. @ Replaceprinter mechanism. Replace printer mechanism. (9 -54-

in item 8 of chapter 7. NO @ Replace main logic NO 1 *2 See (8) and (9) waveform YES I board. Replace printer @ Replace printer mechanism. mechanism. @ NO O Replace ink ribbon. @ Replace printer mechanism. Terminates self printing. @ Check host computer connection. I Turn power off and check I/F cable. o Turn power on. I Send print program from host computer. I in item 8 of chapter 7. I YES @)Replace main logic board. I @ Replace printer mechanism. I I I I Replace printer mechanism. -55-

Stop print @ Replace main logic program. board. @ Check host computer, I END o NO YES I @ Replace main logic board. @ Replace printer I mechanism Turn power off. I II G I Replace power supply unit. Replace fuse. G Remove cormqctor CN5 from main logic board. 1 Turn power on. I [0 4 *4 +25V Line +2SV*5% Pin I of CN I +5V Line +5V*2.5YC Pin 4 of CN I -56-

Turn power off. unit. I I # I I Connect connector I CN5 from I Turn power on. NO G Replace fuse. F @ Replace main logic board. @ Replace printer mechanism @ *4 +25V Line +25V*5% Pin I of CN1 +5V Line +5V~2.5T0 Pin 4 of CN 1 –57 -

YES No * YES m Check hardware or host computer print program. @ Replace I/F cable. @ Replace main logic Change I/F mode. board. 4 Y o @ -58-

4-1.Doesnot Operateat Allwith Poweron w I NO I DC Power abnormal. I See 4-2. Power Supply Circuit Abnormal. NO YES Check RESET circuit; replace parts. NO * YES Check crystal circuit; replace parts. NO b YES @ Replace CPU or ROM, @ Check ~elevant circuit. Carriage motor abnormal. 1 * 4 I *2 I Check operation. *3 See (2) waveform in item 8 of chapter 7. See (1) waveform in item 8 of cbapter 7. END *1 +25V Line +25vf570 Pin I of CN1 +5V Line +5V*2.570 Pin 4 of CN 1

(1) RemoveconnectorCN5fromthemainlogicboard. START YES Replace Fuse F1 YES Replace Transformer I I I 1 The no load voltages are below: YES I Connect the No Connector CN5 Replace Tritnsformer YES - 1 Check and replace NO (D ICI + @Dl ~ DB 1 I YES I Check and replace c IC2 I @ DB2 4 A I -60–

NO Check and replace YES c’ TR201 a’ TR19 @ CPU 1 NO 1 -1 Check and replace o TR14-17 @ CPU I 4 w 1 Check operation. 7 START NO I Check and replace YES @ TR201 @ TR 12 @ CPU 1 NO 1 Check and replace YES @ TAI I a’CPU G I 1 Replace CR-motor Check operation *4 See (8) waveform in item 8 of chapter 7. *5 See (9) waveform in item 8 of chapter 7. *6 See (6) waveform in item 8 of chapter 7. *7 See (7) wavefo~ in item 8 of chapter 7. -61 –

1 * G I Check and replace @ TR1 @ TR2 o Gate array YES Check and replace @ Gate array @) CPU I 1 Check and replace NO @ TR3-1 I 4 YES I NO Adjust gap (Refer to chapter 3.) I L Check and replace ~ Print head *8 See (4) waveform in item 8 of chapter 7. -62-

TROUBLESHOOTING 4-5. DefectiveInterfaceOperation T START YES CheckI/F cable. [ Checkandreplace @IC5 @Gatearray @CPU 4 I Check operation -63–

7 CHAPTER 7 PARTS LIST HOW TO USE PARTS LIST (1) DRWG. NO. This column shows the drawing number of the illustration. (2) REVISED EDITION MARK This column shows a revision number. Parts that have been added in the revised edition are indicated with “#”. Parts that have been abolished in the revised edition are indicated with “*”. For example, #1 : First edition → Second edition #2 : Second edition → Third edition *1 : First edition → Second edition *2 : Second edition → Third edition (3) PARTS NO. Parts numbers must be notified when ordering replacement parts. (4) PARTS NAME Parts names must be notified when ordering replacement parts. (5) Q’TY This column shows the number of the part used as indicated in the figure. (6) REMARKS When there are differences in the specifications of the fuse, destinations, etc., the differences are described in words or indicated by two letters. US .....U.S.A. EC .... EC UK ... United Kingdom HK .......Hong Kong AS .....Austraia WG ... Germany LA ... Latin America SU........ Russia The seal number of ROM is described in this column. The “**” mark of seal number is a variable representing on the software version. (7) RANK Parts marked “S” are service parts. Service parts are recommended to be in stock for maintenance. 1. Printer Assembly .................................. 66 1-1. Disassembly Drawing ....................... 66 1-2. Parts List............................................ 67 2. Printer Mechanism ............................... 69 2-1. Disassembly Drawing ....................... 69 2-2. Parts List............................................ 70 3. Sub-assembly ....................................... 71 3-1. Lower Case Unit ................................ 71 3-2. Serial-Parallel Converter (Option)..................................................... 72 3-3. Frame Unit ......................................... 73 3-4 Platen Unit ......................................... 74 3-5. Tractor................................................ 75 4. Wiring Scheme of Printer .................... 76 5. Main Logic Board .................................. 78 5-1. Circuit Diagram ................................. 78 5-2. Component Layout ........................... 82 5-3. Parts List............................................ 84 6. Power Supply Unit ................................ 87 6-1. Circuit Diagram ................................. 87 6-2. Component Layout ........................... 88 6-3. Parts List............................................ 89 7. Serial-Parallel Converter Board (Option) ................................................... 91 7-1. Wiring Scheme .................................. 91 7-2. I/F Board ............................................ 92 7-2-1. Circuit Diagram ........................ 92 7-2-2. Component Layout .................. 92 7-3-3. Parts List .................................. 92 7-3. CPU Board ......................................... 93 7-3-1. Circuit Diagram ........................ 93 7-3-2. Component Layout .................. 94 7-3-3. Parts List .................................. 94

DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 1 89060790 MECHANISM WITH HEAD DP891F 1 S 2 87801010 LOWER CASE UNIT ZL-10 1 S 3 87802010 MAIN LOGIC BOARD UNIT ZL-10 1 EXCEPT FOR HK,SU S 87802080 MAIN LOGIC BOARD UNIT ZL-10 HK 1 FOR HK S #2 87805250 MAIN LOGIC BD UNIT ZL-10 SU 1 FOR SU S 4 87803010 POWER SUPPLY UNIT ZL-10 US 1 FOR US S 87803030 POWER SUPPLY UNIT ZL-10 EC 1 FOR EC,WG,LA S 87803040 POWER SUPPLY UNIT ZL-10 UK 1 FOR UK S 87803200 POWER SUPPLY UNIT ZL-10 HK 1 FOR HK S #1 87803270 POWER SUPPLY UNIT ZL-10 AS 1 FOR AS S #2 87803620 POWER SUPPLY UNIT ZL-10 SU 1 FOR SU S 5 82040070 SUB-GUIDE 891 1 S 6 *3 83023900 UPPER CASE ZL-10 1 S #3 83023901 UPPER CASE ZL-10 1 S 7 80086660 OPERATION SHEET ZL-10 1 EXCEPT FOR SU S #2 80087070 OPERATION SHEET SPECIAL ZL-10 1 FOR SU S 8 80083060 BRAND SEAL NX-1001 1 FOR US,HK,LA,SU S 80083160 BRAND SEAL LC-20 1 FOR EC,UK,AS,WG S 9 83023920 PRINTER COVER ZL-10 1 S 10 87806010 PAPER GUIDE UNIT ZL-10 1 S 11 *2 83023930 REAR COVER ZL-10 1 S *3 83023931 REAR COVER ZL-10 1 S #3 83023933 REAR COVER ZL-10 1 S 12 83902760 PLATEN KNOB ZL-10 1 S 13 *4 80981560 INK RIBBON CARTRIDGE UP NX1000 1 FOR US,LA S #4 80980850 INK RIBBON CARTRIDGE UPC LC9 1 FOR US,LA S *4 80981160 INK RIBBON CARTRIDGE JA NX1000 1 EXCEPT FOR US,LA S #4 80982290 INK RIBBON CARTRIDGE JAN LC9 1 EXCEPT FOR US,LA S 14 87805010 RELEASE SHAFT UNIT ZL-10 1 S 15 *2 83400800 RELEASE LEVER 891F 1 S #2 83400801 RELEASE LEVER 891F 1 S 16 *3 80530840 RELEASE LEVER SPRING 891F 1 S 17 *1 83910840 CABLE HOLDER 891 1 S #1 83910841 CABLE HOLDER 941 1 S 18 *1 82900772 RIBBON HOLDER 891 1 S #1 82900773 RIBBON HOLDER 891 1 S 19 01903060 SCREW TAT 3-8 PT-FL 2 S 20 *3 01914036 SCREW TR 4-5 WS 2 EXCEPT FOR HK,SU S #3 01914036 SCREW TR 4-5 WS 2 EXCEPT FOR HK S *3 01914036 SCREW TR 4-5 WS 1 FOR HK,SU S #3 01914036 SCREW TR 4-5 WS 1 FOR HK S 21 01914034 SCREW TAT 4-8 CT-WF 3 S 22 *3 01914040 SCREW TAS 4-10C1P 2 FOR US S #3 01914031 SCREW TAT 4-12 PT-FL 2 FOR US S *2 01914031 SCREW TAT 4-12 PT-FL 2 EXCEPT FOR US S *3 01914043 SCREW TAT 4-12 PT WB 2 EXCEPT FOR US S #3 01914031 SCREW TAT 4-12 PT-FL 2 EXCEPT FOR US S 23 01914031 SCREW TAT 4-12 PT-FL 3 S 24 01914030 SCREW TAT 4-15 PT 4 S 25 04020016 STOP RING SE4.0 1 S 26 89595010 S-P CONVERTER SPC-8K UPC 1 OPTION: FOR US,LA 89595020 S-P CONVERTER SPC-8K JAN 1 OPTION: EXCEPT US,LA 27 *3 80994450 RUBBER SHEET ZL-10 1 28 #2 80087630 SILENT SALESMAN ZL-10 US 1 FOR US - 89590203 ASF SF-10DR US 1 OPTION: FOR US,LA 89590201 ASF SF-10DR WG 1 OPTION: FOR EC,WG 1-2. Parts List Printer Assembly

DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK - 89590200 ASF SF-10DR UK 1 OPTION: FOR UK #1 89590205 ASF SF-10DR AS 1 OPTION: FOR AS 89590206 ASF SF-10DR HK 1 OPTION: FOR HK,SU Printer Assembly

1 87060210 FRAME UNIT 891F 1 INC. NO.5,6,11,14,24 2 89130060 PRINT HEAD DP8901F 1 S 3 87061120 CARRIAGE MOTOR UNIT 891F 1 S 4 87067020 BAIL ROLLER SHAFT UNIT 891 1 5 83400440 BAIL LEVER R 891 1 S 6 83400460 BAIL LEVER L 891 1 S 7 87063050 PLATEN UNIT 891B 1 S 8 *2 81370521 TRACTOR STAY 891 1 #2 81370522 TRACTOR STAY 891 1 9 87066010 TRACTOR UNIT 891 1 S 10 87067010 TENSION LEVER UNIT 891 1 11 87065060 DETECTOR ASSY B 891F 1 S 12 83400790 ADJUSTING LEVER 891F 1 13 82401220 INDEX LEVER 891F 1 14 80530510 BAIL LEVER SPRING 891 2 S 15 80530571 GROUND CONTACT SPRING 921 1 S 16 01902612 SCREW TAT 2.6-16 PT 2 S 17 *1 00920503 SCREW TAT 2-5 CT 1 S #1 00926603 SCREW TAT 2.6-6 CT 1 S 18 00926603 SCREW TAT 2.6-6 CT 1 S 19 00630504 SCREW TR 3-5 2 S 20 01903018 SCREW TR 3-6 WS/WF 1 S 21 01903075 SCREW TBT 3-6 PT 1 S 22 04020016 STOP RING SE4.0 1 S 23 *2 02040403 TOOTHED NUT NHK4 4 S #2 02020401 HEXAGON NUT NH4-2 4 S 24 87060840 CARRIAGE UNIT 891F 1 - 04991204 FASTENER T18S 1 S 04991230 MINI CORD CLAMP UAMS-05-SN 4 S DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 2-2. Parts List Printer Mechanism

3. Sub-assembly 3-1. Lower Case Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 2-1 *1 83023910 LOWER CASE ZL-10 1 *3 83023911 LOWER CASE ZL-10 1 #3 83023912 LOWER CASE ZL-10 1 2-2 82011050 LOWER CASE CHASSIS ZL-10 1 2-3 83200890 HOLDER ROLLER 891F 3 2-4 81301320 ROLLER SHAFT 891 3 2-5 87801320 DETECTOR UNIT A ASSY ZL-10 1 S 2-6 82501150 RELEASE SPRING 891F 3 2-7 00926803 SCREW TAT 2.6-8 PT 1 S 2-8 00930803 SCREW TAT 3-8 PT 2 S 2-9 *2 01903064 SCREW TAT 3-5 CT 1 S *2 01903094 SCREW TAT 3-5 DT 1 S - #1 80991610 RUBBER FOOT NB24-10 2 Lower Case Unit

26-1 83024060 UPPER CASE SPC-8K 1 26-2 87590010 CPU BOARD UNIT SPC-8K 1 26-3 87590020 IF BOARD UNIT SPC-8K 1 26-4 87591020 LOWER CASE UNIT SPC-8K 1 26-5 82901600 CORD HOLDER SPC-8K 1 26-6 01903047 SCREW TAT 3-12 PT-FL 3 26-7 01903060 SCREW TAT 3-8 PT-FL 1 26-8 #2 82902150 CORD HOLDER PLATE SPC-8K 1 - 09990716 FERRITE CORE HF70RU12X5 2 3-2. Serial-Parallel Converter (Option) DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Serial-Parallel Converter

3-3. Frame Unit 1-1 83910853 GEAR COVER 891 1 S 1-2 *1 83901613 CARD HOLDER 891 1 S #1 83901614 CARD HOLDER 891 1 S 1-3 *1 83902740 CARRIAGE 891F 1 #1 87060590 CARRIAGE ASSY 891F 1 INCLUDE DRWG.NO.1-4 1-4 *1 80210480 BUSHING 12X14X10 891B 2 1-5 80902050 TIMING BELT HTD102 364X3.2 1 1-6 83100490 IDLER GEAR 43X63X0.3 1 S 1-7 83120450 RIBBON CASSETTE GEAR 891 1 S 1-8 *3 83100501 IDLER GEAR 16X1-40X0.3 1 S #3 87312460 IDLER ASSY TRX 1 S 1-9 83100541 IDLER GEAR 17X41X0.3 1 S 1-10 82210031 WAVE WASHER 891 1 S 1-11 83400410 CLUTCH LEVER 891 1 S 1-12 87060610 PAPER FEED MOTOR ASSY 891 1 S 1-13 83100510 GEAR 40X0.5 1 S 1-14 83100520 IDLER GEAR 16X72X0.5 1 S 1-15 01903064 SCREW TAT 3-5 CT 2 S 1-16 02304025 POLY-SLIDER WP4X0.25 1 S DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Frame Unit

7-1 *3 80202130 PLATEN 891B 1 #3 80202031 PLATEN 891 1 7-2 80530520 PLATEN GEAR SPRING 891 1 7-3 83100550 PLATEN GEAR A 891 2 7-4 83100560 PLATEN GEAR B 891 1 7-5 83200662 PLATEN HOLDER 891 2 S 7-6 04012502 ROLL PIN SP2.5X12 3 S 7-7 *1 04020014 STOP RING SE6.0 2 S #1 04020022 STOP RING SE6.0-SUS 2 S 7-8 #1 87063340 PLATEN GEAR ASSY 891B 1 WITH NO.7-2,3,4 S 3-4. Platen Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Platen Unit

9-1 83901620 TRACTOR HOLDER R 891 1 S 9-2 83901631 TRACTOR HOLDER L 891 1 S 9-3 *3 81380440 TRACTOR SHAFT 891 1 #3 81380442 TRACTOR SHAFT 891 1 9-4 *2 81370521 TRACTOR STAY 891 1 #2 81370522 TRACTOR STAY 891 1 9-5 83110110 SPROCKET WHEEL 891 2 S 9-6 83400311 CLAMP LEVER R 831 1 S 9-7 83400321 CLAMP LEVER L 831 1 S 9-8 *3 83901600 SHEET GUIDE 891 1 #3 83901601 SHEET GUIDE 891 1 9-9 83910861 TRACTOR COVER R 891 1 S 9-10 83910871 TRACTOR COVER L 891 1 S 9-11 83110100 TRACTOR CLUTCH 891 1 S 9-12 83100530 TRACTOR GEAR 64X0.5 1 S 9-13 *3 83200650 TRACTOR BUSHING 891 2 #3 83200651 TRACTOR BUSHING 891 2 9-14 02307050 POLY-SLIDER WP7X0.5 2 S 9-15 *3 80520350 SPRING C090-070-0130 1 S #3 80520351 SPRING C090-070-0130 1 S 9-16 04020017 STOP RING SE5.0 3 S 3-5. Tractor DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Tractor

IC1 08250001 CPU M50734SP-10 1 S IC2 08220116 EPROM 27512-150NS 1 ZL.** :EXCEPT SU S *2 08223110 MASKED ROM 1.3 ZL-10 1 :EXCEPT SU S #2 08223111 MASKED ROM 1.5 ZL-10 1 :EXCEPT SU S #2 08220116 EPROM 27512-150NS 1 ZL.**.SU :FOR SU S 09110024 IC SOCKET ICS-28-2T 1 IC3 08221002 SRAM HM6264P-100NS 1 S IC4 08240013 GATE ARRAY D65006CW-LC2 1 S IC5 08210017 TTL IC 74LS05 1 IC6 08200109 IC-RESET M51953BL 1 S TR1 07011752 TRANSISTOR 2SA1266* 1 TR2 07227853 TRANSISTOR 2SC1740SE 1 TR3-11 07320411 TRANSISTOR 2SD2041 9 S TR12 07227853 TRANSISTOR 2SC1740SE 1 TR13 07111682 TRANSISTOR 2SB1168 1 S TR14-17 07320101 TRANSISTOR 2SD2010 4 S TR18 07113871 TRANSISTOR 2SB1387TZ 1 S TR19 07227853 TRANSISTOR 2SC1740SE 1 TA1 07650036 TRANSISTOR ARRAY STA435A 1 S D1 08000044 DIODE 1SR139-100AT 1 D2 NOT USED D3 08000044 DIODE 1SR139-100AT 1 R1-2 06051034 RD RESISTOR 10 K-OHM 1/6W 2 R3-4 06054725 RD RESISTOR 4.7 K-OHM 1/6W 2 R5 06052714 RD RESISTOR 270 OHM 1/6W 1 R6 06054725 RD RESISTOR 4.7 K-OHM 1/6W 1 R7 06051025 RD RESISTOR 1 K-OHM 1/6W 1 R8 06051014 RD RESISTOR 100 OHM 1/6W 1 R9 06051025 RD RESISTOR 1 K-OHM 1/6W 1 R10-17 06054725 RD RESISTOR 4.7 K-OHM 1/6W 8 R18-19 06052714 RD RESISTOR 270 OHM 1/6W 2 R20 06051525 RD RESISTOR 1.5 K-OHM 1/6W 1 R21 NOT MOUNTED R22-25 06054725 RD RESISTOR 4.7 K-OHM 1/6W 4 R26 06051034 RD RESISTOR 10 K-OHM 1/6W 1 R27 06052224 RD RESISTOR 2.2 K-OHM 1/6W 1 R28 06051034 RD RESISTOR 10 K-OHM 1/6W 1 R29 06054725 RD RESISTOR 4.7 K-OHM 1/6W 1 R30 06058224 RD RESISTOR 8.2 K-OHM 1/6W 1 R31 06054725 RD RESISTOR 4.7 K-OHM 1/6W 1 R32 06058224 RD RESISTOR 8.2 K-OHM 1/6W 1 R33-34 06054725 RD RESISTOR 4.7 K-OHM 1/6W 2 R35-36 06052714 RD RESISTOR 270 OHM 1/6W 2 R37 06051051 RD RESISTOR 1 M-OHM 1/6W 1 R38-42 06053314 RD RESISTOR 330 OHM 1/6W 5 R43-46 06043315 RD RESISTOR 330 OHM 1/4W 4 R47-54 06051025 RD RESISTOR 1 K-OHM 1/6W 8 R55 *1 06251034 RN RESISTOR 10 K-OHM 1/6W 1 #1 06241034 RN RESISTOR 10 K-OHM 1/4W 1% 1 R56 06054725 RD RESISTOR 4.7 K-OHM 1/6W 1 R57 06051034 RD RESISTOR 10 K-OHM 1/6W 1 R58 06205611 RN RESISTOR 560 OHM 2W 1 R59 06051034 RD RESISTOR 10 K-OHM 1/6W 1 R60 06220684 RN RESISTOR 6.8 OHM 1/2W 1 R61 06051034 RD RESISTOR 10 K-OHM 1/6W 1 R62 06054725 RD RESISTOR 4.7 K-OHM 1/6W 1 5-3. Parts List DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Main Logic Board

R63 06051034 RD RESISTOR 10 K-OHM 1/6W 1 R64 06054725 RD RESISTOR 4.7 K-OHM 1/6W 1 R65-67 06051034 RD RESISTOR 10 K-OHM 1/6W 3 R68 06200274 RN RESISTOR 2.7 OHM 2W 2% 1 R69 06051014 RD RESISTOR 100 OHM 1/6W 1 R70-77 06054714 RD RESISTOR 470 OHM 1/6W 8 R201-210 06052714 RD RESISTOR 270 OHM 1/6W 10 RA1 06584729 RESIS. ARRAY 4.7K-OHM 1/8W 8EL 1 RA2 06581823 RESIS. ARRAY 1.8K-OHM 1/8W 6EL 1 RA3 06584720 RESIS. ARRAY 4.7K-OHM 1/8W 4EL 1 RA4 06581028 RESIS. ARRAY 1 K-OHM 1/8W 9EL 1 RA5 06584729 RESIS. ARRAY 4.7K-OHM 1/8W 8EL 1 C1 05152212 CERA. CAPA. 220PF 50V 1 C2 05552214 CAPACITOR 220PF 50V 1 C3 05131044 CERA. CAPA. 0.1UF 25V 1 C4 05154723 CERA. CAPA. 4700PF 50V 1 C5-6 05152234 CERA. CAPA. 0.022UF 50V 2 C7 05552214 CAPACITOR 220PF 50V 1 C8 05131044 CERA. CAPA. 0.1UF 25V 1 C9 NOT USED C10 05152234 CERA. CAPA. 0.022UF 50V 1 C11 05131044 CERA. CAPA. 0.1UF 25V 1 C12 05152234 CERA. CAPA. 0.022UF 50V 1 C13 05154714 CERA. CAPA. 470PF 50V 1 C14 05152212 CERA. CAPA. 220PF 50V 1 C15 05131044 CERA. CAPA. 0.1UF 25V 1 C16 05551044 CAPACITOR 0.1UF 50V 1 C17 05152212 CERA. CAPA. 220PF 50V 1 C18 NOT MOUNTED C19-20 05532234 CAPACITOR 0.022UF 25V 2 C21-22 05552214 CAPACITOR 220PF 50V 2 C23 05131044 CERA. CAPA. 0.1UF 25V 1 C24 05532234 CAPACITOR 0.022UF 25V 1 C25 05152234 CERA. CAPA. 0.022UF 50V 1 C26-27 NOT MOUNTED C28 05131044 CERA. CAPA. 0.1UF 25V 1 EXCEPT FOR HK,SU NOT MOUNTED :HK,SU C29 05252232 FILM CAPA. 0.022UF 50V 1 EXCEPT FOR HK,SU NOT MOUNTED :HK,SU CA1-2 05651012 CAPA. ARRAY 100PF 50V 8EL 2 DSW1 *1 09090034 DIP SWITCH KSS08-1 1 #1 09090046 DIP SWITCH EAH108L-BLK 1 DSW2 *1 09090033 DIP SWITCH KSS04-1 1 #1 09090045 DIP SWITCH EAH104L-BLK 1 XTAL1 09250035 CERA. OSCILLATOR CST10.0MT 1 LED1 08300055 LED LT-1H11A 1 LED2-10 08300058 LED LT-1E21A 9 SW1-4 09010043 PUSH SWITCH SKHHAL=S 4 CN1 09100457 CONNECTOR 57L-40360-770B-D29 1 CN2 *1 09100342 CONNECTOR 53014-0410 1 *3 09100476 CONNECTOR 53014-0470 1 #3 09100342 CONNECTOR 53014-0410 1 CN3 09100464 CONNECTOR 5062-16 1 CN4 *1 09100342 CONNECTOR 53014-0410 1 *3 09100476 CONNECTOR 53014-0470 1 #3 09100342 CONNECTOR 53014-0410 1 DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Main Logic Board

DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK CN5 09100317 CONNECTOR 5483-04A 1 CN6 09100267 CONNECTOR 5483-06A 1 CN7 09100278 CONNECTOR 5483-06A-RED 1 CN8 09100384 CONNECTOR HLEM15S-2 1 CN9 09100464 CONNECTOR 5062-16 1 80703201 CABLE UNIT 16X180 ZL-10 1 JW1 *3 80701170 WIRE 20UL1007BLK230 1 #3 87770070 CABLE UNIT 01X230 (D) 1 J1-42 93930006 JUMPER WIRE STP122 42 J43 NOT USED J44-59 93930006 JUMPER WIRE STP122 16 J60-63 NOT USED J64-96 93930006 JUMPER WIRE STP122 33 J97 NOT USED J98-99 93930006 JUMPER WIRE STP122 2 J201-205 93930006 JUMPER WIRE STP122 5 - *3 80086510 BOARD ID SEAL HK 1 FOR HK,SU Version Kind Remark 1.5 Masked ROM Except for Russian version Production ZL.1.7 EPROM Except for Russian version Maintenance ZL.1.6.SU EPROM For Russian version. Production/Maintenance Note 1: As of March, 1993 the program ROM version on IC2 is shown below.If a ROM other than those described below is mounted, the performance of the printer may differ from that described this manual. Main Logic Board

IC1 08202008 IC-REG L4960 1 S IC2 08202013 IC-REG L4941 1 S D1 08030016 SCHOTTKY DIODE ERB84-009 1 S R1 06041035 RD RESISTOR 10 K-OHM 1/4W 1 R2 06041034 RD RESISTOR 10 K-OHM 1/4W 1 R3 06242034 RN RESISTOR 20 K-OHM 1/4W 1% 1 R4 06245124 RN RESISTOR 5110 OHM 1/4W 1 C1 *3 05291044 FILM CAPA. 0.1UF 250V 1 #3 05291045 FILM CAPA. 0.1UF 275V 1 C2-3 05192224 CERA. CAPA. 2200PF 400V 2 EXCEPT FOR HK,SU NOT MOUNTED :HK,SU C4 05054782 CHEM. CAPA. 4700UF 50V 1 C5 05155614 CERA. CAPA. 560PF 50V 1 C6 05252224 FILM CAPA. 2200PF 50V 1 C7 05154714 CERA. CAPA. 470PF 50V 1 C8 05251044 FILM CAPA. 0.1UF 50V 1 C9 05043385 CHEM. CAPA. 3300UF 35V 1 C10 05024781 CHEM. CAPA. 4700UF 16V 1 C11 05152234 CERA. CAPA. 0.022UF 50V 1 C12 05022271 CHEM. CAPA. 220UF 16V 1 DB1 *3 08990220 DIODE STACK D3SB10 1 S #3 08990227 DIODE STACK D3SB20 1 S DB2 08990221 DIODE STACK 1B4B41 1 S T1 *2 09240710 TRANSFORMER 120V ZL-10-TB US 1 FOR US #2 09240711 TRANSFORMER 120V ZL-10-TB US 1 FOR US 09240720 TRANSFORMER 220V ZL-10-P EC 1 FOR EC,HK,WG,LA,SU 09240730 TRANSFORMER 240V ZL-10-P UK 1 FOR UK,AS L1 09251106 LINE FILTER SU10V-05050 1 L2 09251023 CHOKE COIL SK15BS045-300 1 F1 09990058 FUSE 5TT1A 250V 1 FOR US S 09990021 FUSE EAWK630MA 250V 1 EXCEPT FOR US S F2-3 09990054 FUSE 5TT3A 125V 2 FOR US,UK,AS S 09990050 FUSE EAK3.15A 250V 2 FOR EC,HK,WG,LA,SU S - *3 09110098 CORD SET US-PN ZX-10CL 1 FOR US #3 09110144 CORD SET US-PN HA-10 1 FOR US *3 09110099 CORD SET EC-PN ZX-10CL 1 FOR EC,WG,LA *4 09110099 CORD SET EC-PN ZX-10CL 1 FOR WG,LA #4 09110143 CORD SET EC-PN HA-10 1 FOR WG,LA #3 09110143 CORD SET EC-PN HA-10 1 FOR EC 09110067 CORD SET UK-PN LC 1 FOR UK *2 09110067 CORD SET UK-PN LC 1 FOR HK #2 09110136 CORD SET HK-PN QBA 1 FOR HK #1 09110068 CORD SET AS-PN LC 1 FOR AS #2 09110060 CORD SET SV-PN L=2M 1 FOR SU 09030019 SEESAW SWITCH T-881SBSS-A1 1 *2 04033002 SCREW RIVET 1712-3007 2 FOR IC1,2 :NOTE1 #2 01903035 SCREW TR 3-10 FL 1 FOR IC1,2 #2 82090350 TRANSISTOR HOLDER PLATE R-10 1 FOR IC1,2 04033202 RIVET 1801-0408 2 FOR RADIATION PLATE 04991204 FASTENER T18S 3 FOR US,EC,WG,LA 04991204 FASTENER T18S 2 FOR UK,HK,AS,SU 04991219 CORD BUSHING SR-4N-4 1 FOR US,SU 04991220 CORD BUSHING SR-5N-4 1 EXCEPT FOR US,SU 09990023 FUSE HOLDER UF-0033 6 80701060 WIRE 20UL1015BLK105T 2 80702240 CABLE UNIT 4X60 1 DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Power Supply Unit 6-3. Parts List

- 80703120 CABLE UNIT 4X60 ZX-10CL 1 *3 80924691 WIRE 18UL1015G/Y100TT 1 EXCEPT FOR HK,SU *4 87770060 CABLE UNIT 01X100TT A (D) 1 EXCEPT FOR HK,SU #4 80705750 CABLE UNIT 01X100TT (A) 1 EXCEPT FOR HK,SU *3 82020440 POWER CORD COVER ZL-10 1 #3 82020441 POWER CORD COVER ZL-10 1 82911110 RADIATION PLATE ZX-10CL 1 93930006 JUMPER WIRE STP122 6 DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK Note 1: This screw is retightened wuth a 1/16" hexagon screw driver. Power Supply Unit

IC101 08200125 IC-I/F LT1081CN 1 IC102 08200109 IC-RESET M51953BL 1 R101 06053324 RD RESISTOR 3.3 K-OHM 1/6W 1 C101-104 05034758 CHEM. CAPA. 4.7UF 25V 4 C105 05551044 CAPACITOR 0.1UF 50V 1 CN101 09100461 CONNECTOR DBLC-J25SAF-23L8 1 CN102 09100462 CONNECTOR 5532-08A 1 J101-108 93930006 JUMPER WIRE STP122 8 P=10mm 7-2. I/F Board 7-2-1. Circuit Diagram 7-2-2. Component Layout DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 7-2-3. Parts List

7-3-2. Component Layout [Parts side] [Solder side] 7-3-3. Parts List CPU Board DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK IC1 08250011 MASKED CPU HD63B01YF-IF 1 IC2 08221021 SRAM HM6264LFP-100NS 1 TR1 07603007 DIGITAL TRANSISTOR RTIN434C-T 1 R1 06754721 CHIP RESISTOR 4.7 K-OHM 1/10W 1 R2-4 06751021 CHIP RESISTOR 1 K-OHM 1/10W 3 R5 06754721 CHIP RESISTOR 4.7 K-OHM 1/10W 1 R6-7 06783313 CHIP RESISTOR 330 OHM 1/8W 2 R8 06754721 CHIP RESISTOR 4.7 K-OHM 1/10W 1 RA1 06564721 RESIS. ARRAY 4.7K-OHM 1/16W8EL 1 C1 05731042 CERA. CAPA. CHIP 0.1UF 25V 1 C2 05514751 TANTALUM CAPA. CHIP 4.7UF 10V 1 C3 05731042 CERA. CAPA. CHIP 0.1UF 25V 1 C4 NOT USED C5-6 05751025 CERA. CAPA. CHIP 1000PF 50V 2 XTAL1 09250039 CERA. OSCILLATOR EFO-W4914B5 1 DSW1 09090018 DIP SWITCH KSD08 1 SW1 09010047 PUSH SWITCH SKHHLS0001 1 CN1A-1B 80706070 INTERFACE CABLE SPC-8K 1 CN2 09100463 CONNECTOR 5533-08CPB 1

Printed in Japan, 80823335 ZL Distributed by OVERSEAS SUBSIDIARY COMPANIES STAR MICRONICS AMERICA INC. 70-D Ethel Road West. Piscataway, NJ 08854-5950, U.S.A Tel: 732-572-5550 Telefax: 732-572-5693 HEAD QUARTERS STAR MICRONICS CO., LTD. JAPAN 536 Nanatsushinya, Shimizu, Shizuoka, 424, Japan Tel: 0543-47-0113 Telefax: 0543-48-5013 STAR MICRONICS PTY. LTD. Unit A/107-115 Asquith Street, Silverwater, NSW 2141 Australia Tel: 02-748-4300 Telefax: 02-748-3527 STAR MICRONICS ASIA LTD. 18/F., Tower II, Enterprise Square 9 Sheung Yuet Road, Kowloon Bay Hong Kong Tel: 2796-2727 Telefax: 2799-9344 STAR MICRONICS (N.Z.) LTD. 64 Lunn Ave. Mount Wellington P.O. Box 6255, Wellesley St., Auckland, New Zealand. Tel: 570-1450 Telefax: 570-1448 STAR MICRONICS U.K.LTD. Star House, Peregrine Business Park, Gomm Road, High Wycombe Bucks, HP13 7DL U.K. Tel: 01494-471111 Telefax: 01494-473333