英文翻譯封面(英文原文)

CONTENTTOC\o"1-5"\h\z\o"CurrentDocument"IMPORTANTINSTRUCTIONS 3\o"CurrentDocument"Beforeplanningtodevelopthisproduct 3\o"CurrentDocument"Forsafety 3\o"CurrentDocument"Designingprecautions 4\o"CurrentDocument"Handlingprecautions 4\o"CurrentDocument"Beforepurchase 5\o"CurrentDocument"INSTRUCTIONS 6\o"CurrentDocument"GENERALSPECIFICATIONS 7\o"CurrentDocument"Thermalhead 9\o"CurrentDocument"GeneralSpecifications 9\o"CurrentDocument"ThermalHeadConstruction 9\o"CurrentDocument"HeadDivisionProcessing 10\o"CurrentDocument"PrintDataandPrintPosition 10\o"CurrentDocument"HeadResistance 11\o"CurrentDocument"HeadEnergizingPulseWidth 11PulseWidthtoDrivingVoltage 11EnergizingPulseWidthCorrectionwithtemperature 12Relationshipofappliedenergytothermalrecordingpaper 13Relationshipofenergizationpulsewidthtoenergizationpulsecycle 14Appliedenergyandmotordrivecycleindarknessadjusting 14\o"CurrentDocument"SpecificationsofThermistor 15\o"CurrentDocument"ElectricCharacteristicsofThermalHead 16\o"CurrentDocument"TimingChart 18\o"CurrentDocument"PeakCurrent 18\o"CurrentDocument"PrecautionsonUsingThermalHead 18\o"CurrentDocument"PAPERFEED 20\o"CurrentDocument"SpecificationsofSteppingMotor 20\o"CurrentDocument"Exampleofdrivercircuit 21\o"CurrentDocument"Excitingsequence 22\o"CurrentDocument"MotorTiming 22\o"CurrentDocument"Accelerationcontrol 23\o"CurrentDocument"Motorcurrentcontrol 25\o"CurrentDocument"PLATENOPENSENSOR 26\o"CurrentDocument"GeneralStandards 26\o"CurrentDocument"ExampleofRecommendedCircuit 26PAPERSENSOR 27\o"CurrentDocument"TypeofSensor 27\o"CurrentDocument"GeneralStandards 27\o"CurrentDocument"DesignatedCircuit 28\o"CurrentDocument"CONNECTINGTERMINAL 29\o"CurrentDocument"ThermalHeadTerminal 29\o"CurrentDocument"SensorTerminal 31PlatenOpenSensor 32\o"CurrentDocument"MotorTerminal 32\o"CurrentDocument"PAPERINSERTION 33\o"CurrentDocument"ManualPaperInsertion 33\o"CurrentDocument"CONTROLSYSTEM(PRINTDRIVINGSYSTEM) 34\o"CurrentDocument"VariableDivisionDrivingSystem 34\o"CurrentDocument"FixedDivisionDrivingSystem 36\o"CurrentDocument"OtherPrintDrivingSystems 371IMPORTANTINSTRUCTIONSBeforeplanningtodevelopthisproductTheshapeandspecificationsofthisproductdescribedinthismanualaresubjecttochangewithoutpriornoticebecauseofimprovementstotheproduct.Therefore,youmayberequestedtocontactourbusinesspersonnelofCITIZENSYSTEMSJAPANCO.,LTD.Formoreinformationonthisproduct.ForsafetyPrecautionsagainstheatingwhenusingthermalheadThethermalheadheatsupduringprintingorimmediatelyafterprinting.Theexteriorcaseshouldbedesignedsothatitdoesnotallowtheusertotouchthethermalheaddirectly.Andtakemeasurestomeetthesituation;forexample,indicatethewarningsetcsotheusercanbecarefulnottotouchit.Also,designtheexteriorcaseconsideringtheradiatingofheatofthermalheadsothattheincreaseofheadtemperaturesisminimized.PrecautionswhencleaningtheheadWhentheheadiscleanedwiththeheadcleaningmechanismofthisprinter,indicatethewarningsetcthattheusershouldwaittocleantheheaduntilthethermalheadtemperaturesfallsfully.ThermalheadabnormallyheatingThethermalheadmayrunoutoforder(duetoCPUmalfunctionetc)becauseofthemechanismofprintingbygivingheattothethermalrecordingpaper.Heatingthethermalheadmaycauseburningorfireandyoumaygetburntifyoutouchtheheatedthermalhead.Toavoidthissituationbesuretoadoptanabnormalitydetectioncircuitintegralashardwarethatbreaksthecurrenttothethermalheadinabnormalsituations.PrecautionsagainstheatingwhenusingpaperfeedmotorApartofthepaperfeedmotorisexposedtotheframeoftheprinter.Thepaperfeedmotorheatsupduringprintingorimmediatelyafterprinting.Theexteriorcaseshouldbedesignedsothatitdoesnotallowtheusertotouchthepaperfeedmotordirectly.Andtakemeasurestomeetthesituation;forexample,indicatethewarningsetcsotheusercanbecarefulnottotouchit.Thepaperfeedmotorofthisprinterisnotequippedwiththetemperaturedetectionmechanismofathermistoretc.Thusdesigntheexteriorcaseconsideringtheradiatingofheatofpaperfeedmotorsothattheincreaseofpaperfeedmotortemperaturesisminimized.PaperfeedmotorabnormallyheatingThepaperfeedmotormayrunoutoforder(duetoCPUmalfunctionetc).Heatingthepaperfeedmotormaycauseburningorfireandyoumaygetburntifyoutouchtheheatedpaperfeedmotor.Toavoidthissituationbesuretoadoptanabnormalitydetectioncircuitintegralashardwarethatbreaksthecurrenttothepaperfeedmotorinabnormalsituations.PrecautionswhendesigningtheexteriorcasearoundthepaperfeedgearThepaperfeedgearisexposedsotheexteriorcaseshouldbedesignedsothatitdoesnotallowtheusertotouchthefeedgearresultingininjuriesetc.DesigningprecautionsForusingthermalhead,seeSection4.11ThermalHeadUsingPrecautions.Fordesigningexteriorcase,seeSection12ExteriorCaseDesigningPrecautionsTopreventdamagetothethermalheadcausedbystaticelectricity,usethetapfortheearthtothethermalheadandconnecttheearthwiththeframeground.MinimizethewiringresistanceasmuchaspossiblebetweenpowersourceandFFCterminalandmotorconnector.Donotapplythecurrentwhentherecordingpaperisoutorwhentheheadisup.Doingsomayaffecttheprintqualityorbreakthethermalhead.Controltheprinterwiththepaperandhead-upsensors.Donotallowstaticelectricitytoenterthesignalterminalsthatisbroughtbytransferringtherecordingpaper.Connectbetweentheframegroundandthesignalgroundthroughtheresistanceofapprox.1M.Designtheexteriorcasesothatitcanshutoutforeignmattersuchasdustandpaperchips.HandlingprecautionsIfpaperotherthantherecommendedrecordingpaperisused,theprintquality,theprinter'slifeetcmaynotbeguaranteed.Also,thepaperwithinallowablerangeofpaperwidthshouldbeused.DonotimposeshockontheheadPCBsurface(heatingelementsurface)(includingnoforeignmatterentering).Topreventdamagetotheheatingelement,ICetccausedbystaticelectricity,takecarenottobechargedwithelectricityandbesuretoearththehumanbody.Donotplacetheprinteronasurfacecoveredwithdirtanddust.Doingsowillaffecttheprinter'slife.Useacottonswabdippedinethanol,methanolandIPAetcanddabitlightlytoremovebuilt-upsubstancesstucktotheheatingelementsurface.Donottouchtheheadsurfacedirectlywiththehand,tweezersetc.Havetheheadupduringtransportingorstoringforlongperiods.Leavingthethermalheadmakingcontactwiththeplatenmaycausedeformationoftheplatenandvariationofprintdensity.Applyingthecurrenttothethermalheadwhiletheprinteriscondensingmaycauseabreakdown.Iftheprinteriscondensing,fullydryittoperformprinting.Whenyouprintabarcode,theprintdirectionagainstthepaperfeeddirectionshouldbespecifiedasfollows.1.5BeforepurchaseThemodelnameofthisprinterisshownbythepurposeofuse.Thecodeofthemodelnameissetinthefollowing.Besuretoconfirmthemodelnamebeforepurchase.LT22AAAAA① ②③④⑤⑥MeansLT2200series.Meansdrivevoltage.1:-2:24VMeansprintermechanismtype0:Standardtype(Separatedspecificationisavailable)1:ClamshellMeanspaperpath.H:CurlpathMeanspaperpressure.brank：Standardpaperpressure(60—105卩m)A:Thickpaperpressure(110—150卩m)MeanspapercutterC:Installpapercutterblank：NotinstallpapercutterWhenthedigit⑤isablank,thedigit⑥willbeshittingtotheposition⑤.2INSTRUCTIONSThisprinterissmall-sizedandlightweight,employingthethermaldotlineprintingsystemwithalinethermalhead,thathasbeendevelopedasterminalssuchasPOSterminals,measuringinstruments,medicalequipment,anddatacommunicationsequipment.[Features]Small-sizedandlightweight.Easytoloadthethermalrecordingpaper.High-speedprinting(maximumspeed:1200-dotlinepersecond).Clearprintingwithhighresolutionof8dot/mmPaperwidthof58mm.Withsimplemechanism,longerprinthead'slifeandhighreliabilityareensured.Thankstoheadcleaningmechanism,themaintenanceoftheheadissimple.Compatibleformanykindsofpapersuchasnormalpaper,highsensitivitypreservationpaper,two-colorpaperand2copiespaper.3GENERALSPECIFICATIONSTable3-1GeneralSpecificationsItemSpecificationNote1.PrintingmethodThermaldotlineprinting2.Totaldots432dot/Line3.Dotdensity8dot/mm4.Printwidth54mm5.PrintingspeedMAX.1200dot-line/sLessthan288dotsperdotlineatsimultaneouslyenergizingandprintingenergyof0.16mJorless6.Paperfeedpitch0.125mmPeronemotorstep7.SensorHeadtemperatuerPaperpresenceHeadupThermistorPhoto-sensorPhoto-sensor8. VoltagerangeVpsystemVddsystemDC24V±10%DC5V±5%9.CurrentConsumptionHead(Vp)Max:approx4.9A(288dotsprintingatonetime)Average:approx0.46A(12.5%print)Atmaxvoltage,minresistanceand25°CAt24V,averageresistanceand25CMotor(Vp)Settingcurrent:approx.0.3A/phase10.Recommendedthermalrecordingpaper.WidthThicknessPapermakerandbrand80mm60?150卩Nipponpaperindustries:TF50-KS-E2DMitsubishipapermills:HP220AB-1Mitsubishipapermills:P220ACNipponpaperindustries:TC98KS-T1Nipponpaperindustries:TF11KS-ETNotethatthemodelvariesaccordingtothethicknessofpapertouse11.PaperthicknessNormalpaper60~105卩mLT2221HThickpaper110~150卩mLT2221HA12.Paperfeedforce100gformore13.Paperholdingforce100gformore14.Printhead,slifePulse-resistanceWear-resistance100millionormore(12.5%print),Underroomtemperatureof25C,andallowablehumidity

100kmormoreRatedenergyandrecommendedpaper(TF50-KS-E2D)15.EnvironmentOperationTemperature:0?50°CHumidity:35?85%RHPrintingguaranteedat5to40CNocondensationStorageTemperature:-20?60CHumidity:10?90%RHTobestoredinhead-upcondition16.Vibration-resistance1G,at5to100Hzx,yandzaxes,onehoureach17.Shock-resistance60G11ms6directions,onetimeeach18.Externaldimensions91.5(W)x58(D)x20(H)mm4ThermalheadGeneralSpecificationsTable4-1GeneralSpecifficationsofThermalHeadItemSpecificationNote1.Printwidth54mm2.Totaldots432dots/mm3.Dotdensity8dots/mm4.Paperfeedpitch0.125mm5.Resistance1500Q±3%6.Strobes37.Datatransfer1DATAinputtype8.Max.numberofdotsat simultaneouslyenergizing288dots9.Driver310.voltageVpDC24V±10%VddDC5V±5%PrintqualitywillbeaffectedwhenVddis4.5Vorlessbecausethestandardperformancecannotbedemonstrated.11.Pulsewidth0.469msTemperature25°C.When144dotsareactivatedatonetime.Energy0.16mJ/dot.12.Pulsefrequency0.833ms(Min.)13.Energy0.16mJ/dotPulsefrequency0.833msThermalHeadConstructionThethermalheadconsistsoftheheatingelementsandtheheaddrivertocontrolanddrivetheheatingelements.TheserialprintdatainputfromDATAIN(DI)synchronizewiththeCLOCK(CLK)andtransferredtotheshiftregister,andstoredinthelatchregisterbytheLATCH(LAT)signal.Headenergizingsignal(printcommandSTB1to3)turnsthegateon,andtheheatingelementcorrespondingtothestoreddataisenergized.VHGND12&481L12J3M15J6JZJ&19DOT#576DOT#1STB4STB3STB2STB100。LiiMl144OUTPUTSEACILATLATCHREGISTERDICLKDOVddTMTM0SHIFTREGISTER211020THERMISTOR3OkQB:395OKConnectorEachSTBIireisduIled-idwithinthedrigIC.Figure4-1EquivalentCircuitThermalHeadHeadDivisionProcessingThethermalheadhasthreestrobes.TherelationshipbetweenstrobeandenergizingheatingelementisshownonTable4-2.Table4-2strobeandheatingelementSTR.No.HeatingelementNo.Dots/STR11~1441442145?2881443289?432144PrintDataandPrintPositionThedataof432bits(Nos.1to432)transferredbyDATAIN(DI)areprintedonthepositionshowninfigure4-2.MotorRecordingPaperPrintsideDirectionofpaperfeedPrintermechanismFigure4-2PrintDataandPrintPositionHeadResistanceTheaverageresistancevalueofthethermalheadis1500Q±3%.HeadEnergizingPulseWidth4.6.1PulseWidthtoDrivingVoltageToensureuniformityofdensitycontroltheheadenergizingpulsewidthaccordingtotheheaddrivingvoltage.Calculatetheheadenergizingpulsewidthbythefollowingformula.Vp2XEavTg(25:=Eo。-Rcom+Rav+Kie+RleadVp2XEavTon(25):Headenergizingpulsewidth(ms)at25°CEo<Note1>:standardappliedenergy0.16(mJ)Vp:Headdrivingvoltage(V)

Rav:Headaverageresistance(1500Q)N:ActivateddotsatatimeRcom:0.075(Q)Ric:70(Q)Rlead:14(Q)<Note1>Theenergyinthecaseofthedesignatedthermalrecordingpaper.<Note2>Theheadenergizingpulserectanglewaveof1pulseasthenecessityofenergizingtimeTable4-3ExampleofHeadPulseCalculation(ms)HeaddrivingVoltage(Vset)(ms)21.6V0.57924.0V0.46926.4V0.387Temperature25°CWhen144dotsareactivatedatonetime.Energy0.16mJ4.6.2EnergizingPulseWidthCorrectionwithtemperatureDetectthetemperaturebythethermistormountedonthehead,andcorrecttheenergizingpulsewidthaccordingtotheenvironmentoftheprinterandtheincreaseintemperatureofthethermalheadtocontroltheenergytobeapplied.Whenthetremistortemperatureexceeds65°C,itstopstheoperation.Makecorrectionswiththefollowingformula.tx : Headenergizingpulsewidth(ms) attemperatureinuse(Tx)t25 : Headenergizingpulsewidth(ms) at25C oftemperatureinuseT25 : Roomtemperature(25C)Tx : Temperatureinuse(C)C:Temperaturecorrectioncoefficientty沱25C:C=0.8%/CxtY<25C:C=1.5%/CxTable4-4RelationshipBetweenTemperatureandEnergizingPulseWidthandThermistorCharacteristics.Temperature(°C)ThermistorHeadenergizingpulsewidthtx(ms)Resistance(KQ)21.6V24.0V26.4V0100.990.7960.6450.533577.850.7530.6100.5041060.570.7090.5740.475

1547.530.6660.5390.4462037.610.6220.5040.4172530.000.5790.4690.3873024.110.5560.4500.3723519.510.5330.4310.3564015.890.5090.4130.3414513.030.4860.3940.3255010.750.4630.3750.310558.920.4400.3560.294607.450.4170.3380.279656.250.3940.3190.263Over65°CDonotuseinthisrange.*Thevaluesonthetablearebasedontheheatingelementresistance1500□,printingenergy0.16mJ/dotandsimultaneouslyenergizing144dots.RelationshipofappliedenergytothermalrecordingpaperItisnecessarytochangetheappliedenergydependingonthecolordevelopingcharacteristicofpapertobeused.E=EXPP0Ep:Appliedenergyforeachrecommendedpaper(mJ)Eo:Standardappliedenergy0.16(ms)P:CompensatingratebythethermalrecordingpaperThefollowingtableshowsthecompensatingratefortherecommendedpaper.Table4-5AppliedenergyforthethermalrecordingpaperPapertypePapervendorThicknessCompensatingratebythethermalrecordingpaperPMax. ratingenergyEpMAXMax. motordrivefrequency(Motordrivecycle)TF50-KS-E2D(Normalpaper)NipponpaperIndustries67um1.000.210mJ1200PPS(0.833ms)HP220AB-1(Long lifepaper)Mitsubishipapermills75um1.000.210mJ1200PPS(0.833ms)P220AC(Normalthickpaper)Mitsubishipapermills105pm1.150.200mJ1040PPS(0.962ms)TC98KS-T1(Overcoatedpaper)NipponpaperIndustries125pm1.350.216mJ960PPS(1.042ms)TF11KS-ET(NormalthickNipponpaperIndustries145um1.100.200mJ1040PPS(0.962ms)paper)<Note>Whenyouuse2colortypedevelopingpaperorthermalcopypaper,pleasecontactus.RelationshipofenergizationpulsewidthtoenergizationpulsecycleSetanenergizationpulsewidthfortheenergizationpulsecycleyouuse.Theprintqualityshouldbeimprovedbycorrectingtheenergizationpulsewidthbythefollowingcalculatingformulawhenusingthemotoracceleratingtableordivideddrivingoperation.t=tXFXFXtX:Headenergizationpulsewidth(ms)attheoperatingtemperature(Tx)F:Correctionfactorbytheenergizationpulsecycle2.05-0.87/AA:Energizationpulsecycleperonedotline(ms)Table4-6ExampleofcorrectionofenergizationpulsecycleMotordrivefrequency(pps)Energizationpulsecycle(ms)Energizationpulsewidth(ms)3003.3330.8394002.5000.7985002.0000.7576001.6670.7177001.4290.6768001.2500.6359001.1110.59410001.0000.55311000.9090.51312000.8330.469AppliedenergyandmotordrivecycleindarknessadjustingItisnecessarytochangetheappliedenergyandthemotordrivecycledependingonthecolordevelopingcharacteristicofpapertobeused.Inaddition,ifitisNecessarytoincreasetheappliedenergytochangetheprintdarkness,setthemotordrivecyclewhichiscontrolledbytheappliedenergy(printheadenergizationpulsewidth)byreferringtothefollowingformulainordertokeeptheprintheadlifeandprintquality.Mstep=txoXNstb+K(T.B.D)<Note>MstepM0.833msMstep:Motordrivecycle(ms)txo:Printheadenergizationpulsewidth(ms)attheoperatingtemperature(Tx)

Nstb:DividednumberofprintheadenergizationK:Energizationpausetimeundertheconditionofcontinuousenergizationwiththesamedot.0.25ms*IfthereisnocontinuousenergizationattheoperationofconstantDivideddriveorthesamedotoperation,thevalueKshallbezero.4.7SpecificationsofThermistorElectriccharacteristics(1)Resistance30kQ±5%at25°C(2)Bconstant3,950K+2%Rating(1)Temperature(inuse)range—2。?+80°C(2)ThermaltimeconstantWithin30s(intheair)RelationshipbetweentemperatureandresistanceRx=Rx=RzXEXPBXILTx+273Rx:ResistanceattemperatureinuseTx(°C)R25: 30kQ±5%(at25C)B: 3,950K±2%Tx:Centigradetemperature(C)EXP(x):etothexthpower(naturallogarithm)

TbirpexatureCOFigure4-3TermalCharacteristicsofThermistor4.8曰ectricCharacteristicsofThermalHeadTable4-7ElectricCharacteristicsofThermalHeadItemSignalMinimumStandardMaximumUnitConditionAverageresistanceRav145515001545QOutputpowersourcevoltageVp24.026.4VStandardcondition onprintPowersourcevoltageVdd4.755.005.25VPowersourcecurrentIdd—一24mAfDI=fcLK/2InputvoltageHVIH0.8Vdd一VddVSTR,DILA,CPLVIL0一0.2VddVInputcurrent(DI)HIIHDI一一0.5卩AVIH=5VLIILDI一一-0.5卩AVIL=0VInput currentHIIHSTB一一0.5卩A

(STB)(LOW-ACTIVE)LIILSTB—一-30卩AInput current(CLK)HIIHCLK——2卩ALIILCLK——-2卩AInput current(LAT)HIIHLAT——2卩ALIILLAT——-2卩AOutputvoltage(DO)HVDOH4.45一一VOPEN,Vdd=4.5VLVDOL——0.05VOutputvoltageofdriverVOL-(1.0)一VClock frequency(max)FCLK一一5.0MHzClockpulseTwCLK120.0——nsDatasetuptimetsetupDI50.0——nsDataholdtimetholdDI50.0——nsDataoutdelaytimetdDO————500.0nsLatchpulsewidthtwLAT100.0——nsLatchsetuptimetsetupLAT200.0——nsLatchholdtimetholdLAT50.0——nsStrobesetuptimetsetupSTB300.0——nsStrobetodriveroutputdelaytimeTdo一一5.0卩sTimingCharttwCUKCLOCK(CLK)LDwHiBht:HotwCUKCLOCK(CLK)LDwHiBht:HoId:THROUGHDATAIN(DI)STROBE(STR)[JRIVEROUTDATAOUT(DO}LA1CHH.A)Figure4-4TimingChartPeakCurrentThepeakcurrentattheheaddrivingwillbeshownonthefollowingtabledependingonthenumberofdotsenergizedatonetime.Becarefulthatthevoltagedoesnodroponthewiringroute.Table4-8HeadPeakCurrentNumberofdotsenergizedatonetimePeakcurrentTheoretical1442.5A2884.9ABasedonaverageresistance1455Q、voltage26.4V、andtemperature25°CPrecautionsonUsingThermalHeadWhencontinuousprintingisperformed,thesupplyenergyshouldbereducedsothatthesubstratetemperaturemonitoredthroughthethermistorwillbelowthemaximumtemperature.Poweronandoffsequencemustbeinthefollowingordertopreventthedotelementdamage:TurnonApplythelogicsupplyvoltage(Vdd)firstandtheprintheadsupplyvoltage.TurnoffSwitchofftheprintheadsupplyvoltagefirstandturnthelogicsupplyvoltageoff.PleasekeepSTBsignalto“Disable"duringandnoprintingcondition.HeatelementsandIC'sshallbeanti-electrostaticinordertopreventtheelectrostaticdestruction.Donottouchtheconnectorpinsbynakedhands.Theprintheadsubstratesurfaceiscoatedwithglassandmechanicalstressorshock(includingdustscratchdamage)shouldbeavoidedtopreventdamage.Whentheprintheadoperationisfinished,printsupplyvoltage(includingthechargedvoltagewithcapacitor)shouldbereducedtogroundlevelandremaineduntilnextprintheadoperation.Condensationshouldbeavoided.Ifcondensationoccurred,donotswitchontheprintheadpoweruntilcondensationdisappeared.Externalforceshallnotbeappliedtotheconnectorwhenitispluggedinorout.Printqualitywouldbedegradedifpaperresiduewerestuckontheheatelementarea.Forsuchacase,pleaseusecottonswabwithethanol,methanolandIPAetctocleanup.Donotusethesandpaperdestroyingtheheatelements.Ifprintingsound,forexamplestickingsound,occurredpleasereviewandadjustandtheelectricalpulseprogramtoeliminatethesound.Pleaspayattentionthatthepaperuseddosenotincludebadfactoraffecttheprintheadlife.5PAPERFEED-Rotatingthemotorshaftclockwiselookingfromthemotorgearside(normalrotation)feedstherecordingpaperinthenormaldirection.-Drivethemotorwith2-2phaseexcitation.Onestepofthemotordrivingsignalfeedspaperby0.125mm(correspondingto1dotpitch).■Becarefulnottoabnormallyheatthemotor;decreasethecurrentoftheconstant-currentcircuitiftheperiodofprintingisslow,i.e.themotordrivingperiodperpulseismorethan2.5msusethenon-excitedstateifthemotorexcitationismorethan2.5ms.■Whenthemotorisstartedfromastandstill(non-excitedstate),firstexciteonestepthesamephaseasthestoppingstep,thenshifttotheprintingsequence.Atthistime,topreventdeteriorationoftheprintqualitycausebyabacklashofthepaperfeeddrivesystem,feedthepaper10-dotlinesforward.Drivethemotorat1200pps(periodof0.833ms)whenthepaperisfed.(Usetheaccelerationtableinthepaperdriveoperation.)Drivethemotoratperiodof8mswhenthepaperisfedautomatically.Otherwise,thepaperoutwillincreasethefrictionbetweentheheadandtheplaten.Donotdrivethemotorwithoutpaperexceptforautomaticpaperfeeding(exceptfortheheadup).■Thedrivingperiodneedstobechangedaccordingtotheconditionsinuse.SeeSection4.6.5.Toavoidheatgenerationofthemotor,havethemotornon-excitedduringoperationotherthanthepaperfeed(includingprinting).Themotormustbeoperatedunder90degreeCtemperaturewiththemotorsurface.(Thisprinterdoesnothaveatemperaturesensoronthemotorsurface,thereforeasensormustbeprovidedbyanunitmanufacturer.)■Whentheoperatingtimeexceedthevalue2.5ms,operatethemotorbycurrentcontroltohavelowertheacousticnoisefromthemotor.■Useamotordriverwithlowvoltage(0.3Vorso)preventingvoltagedrop.5.1SpecificationsofSteppingMotorTable5-1SpecificationsofsteppingmotorItemSpecificationsTypePMtypesteppingmotorPhase4phaseDirvesystemBipolarconstantcurrentchopperdirveExcitationsystem2-2phaseexcitationWindingresistance/phase17±7%Q/phaseInsulationclassClassB(Exceptforleads)LeadsU1061AWG28RatedvoltageDC24VSettingcurrentApprox.0.3A/phaseDrivingfrequency1200ppsExampleofdrivercircuitRecommendedmotordrivercircuitIC1(ALEGROtypeA3967SLB,distributedbySankenElectricCo.,Ltd.)hasthebuilt-incircuittocontrolexitingsequence.ItcontrolsthemotortoinputaclocksignaltothedriverIC1.Figure5-1ExampleofsteppingmotordrivercircuitV1歸Figure5-1ExampleofsteppingmotordrivercircuitV1歸B2OUTIBOUT2AOUT2HkdRC1DIRSTEPRC2=7 _=二..三EFRESETREFPFD-ZEN-ZE*]EftDDShDShD3EN3E2Recommendedthevalueofthepart:ECl=100uF/35V,EC2=10uF/16V,Cl=0.22uF/5OV,C2=0.22uF/16VRl=15kQ±l%,R2=10kQ±l%,R2=R4=22kQ,R5=R6=30kQR7=R8=0.5Q±1%,C3=C4=680pFCalculationoftheappliedcurrenttothemotor:Vref=(R2/(Rl+R2))*VCCITRIpMAX=(Vref/8RS)*0.7=(10K/(15K+1OK)*5=(2V/(8*0.5))*0.7=2V=0.35A>^RS=0.5Q*Formoredetails,pleaserefertotheapplicationnoteoftypeA3967SLBdistributedbySankenElectricCo.,LtdTheexplanationofthesignalinthedrivercircuitFunctionTerminalname

FunctionDIRterminalSelectsthedirectionofmotorrotationSTEPterminalActivates1stepoperation*ENALOW:Motorexitedstate/HIGH:Motornonexitedstate*RSTSetthesequencertotheHopeStatebyinputtingLOWlevelsignal.CRD0,1ItcontrolstheapplycurrenttothemotorbychangingthereferencevoltageofthemotordriverIC.ExcitingsequenceTable5-2ExcitingsequenceSequenceSignalnameABABStep1HighHighLowLowStep2LowHighHighLowStep3LowLowHighHighStep4HighLowLowHighidotlineThemotorwillbeturnedonestepatthetimeofrisingedgeoftheSTEPinputwaveformwiththemotordriverIC.Figure5-2InputvoltagewaveformMotorTimingStoppingstepExcitethemotorfor10mswiththesamephaseasthelastphaseoftheprintingstep.StandstillInastandstill,leavethemotornon-excitednottopreventheatgeneration.Evenunderthenon-excitedcondition,therecordingpaperwillnotslipowingtotheholdingtorqueofthemotorandtheplatenloadedwiththeheadpressure.StartingstepTorestartthemotoratastoppingstep,shifttoaccelerationstepimmediately.Torestartthemotorfromastandstill(non-excitedstate),first10msthesamephaseasthestoppingstep,thenshifttotheprintingsequence.Atthistime,topreventdeteriorationoftheprintqualitycausebyabacklashofthepaperfeeddrivesystem,feedthepaper10-dotlinesforward.Usea125ppstorunthemotorwhiletheheadisdownwhenthepaperisout.Figure5-3MotortimingAccelerationcontrolItisnecessarytoperformtheaccelerationcontroltohavethepaperfeedforceatmotorstarttimeinthemotoroperation.Tooperatethemotor,accelerateittothemotordrivespeedaccordingtothetable5-3.Table5-3Accelerationtable(2-2phaseexitedat1200pps)StepNo.Motordrivefrequency(pps)Motordrivecycle(us)1300333323712695

34312320448320705529189065721748761216348650153896851460107191391117511332127821279138111233148411189158681152168951117179211086189461057199711030209951005211019981221042960231064940241086921251108903261129886271150870281170855291190840301200833*Whenthemotordrivefrequencyislessthan640PPSandthemotordrivecycleisgreaterthan1560us,theaboveaccelerationcontrolisnotneededtoperformbecauseoftheautostartedfrequencyrange.5.6Motorcurrentcontro