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2.ProductSpecications

2.2.6.3.Fusing

Thetemperaturechangeoftheheatroller’ssurfaceischangedtotheresistancevaluethroughtheuseofathermistor.

TheMainBoardusestheresistancevalueoftheThermistorandconvertsittoavoltagevaluethroughtheuseofanAD

converter,thetemperatureisdecidedbasedonthevoltagevalueread.TheACpoweriscontrolledbycomparingthetarget

temperaturetothevaluefromthethermistor.Ifthevaluefromthethermistorisoutofcontrollingrangewhilecontrollingthe

fusing,theerrorstatedinthebelowtableoccurs.

•OpenHeatError

Whentheengineoperatesthewarm-upprocess,ifthetemperatureofthexingunitisnothigherthanaspecied

temperaturewithinapredeterminedtime,theenginedenesOpenHeatError.Whenthiserrorisdetected,theengine

stopsallfunctionsandkeepstheerrorstate.Also,theengineinformstheerrorstatusofthemainsystem,soitcantake

appropriateaction;andthentheerrormessageisdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.

•LowHeatError

Whentheengineisatstand-by,printingorwarm-upmode,ifthetemperatureofthexingunitislowerthanthe

speciedtemperatureateachstateandthelowertemperaturestateismaintainedduringthespeciedtime,theengine

denesLowHeatError.Whenthiserrorisdetected,theenginestopsallfunctionsandkeepsitattheerrorstate.Also,

theengineinformstheerrorstatusofthemainsystem,soitcantakeappropriateaction;andthentheerrormessage

isdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.

•OverHeatError

Foroverallenginestate,ifthetemperatureofthexingunitishigherthanthespeciedtemperatureandthetemperature

stateisdetectedforaspecicduration,thentheenginedenesOverHeatError.Whenthiserrorisdetected,theengine

stopsallfunctionsandkeepsitattheerrorstate.Also,theengineinformstheerrorstatusofthemainsystem,soit

cantakeappropriateaction;andthentheerrormessageisdisplayedatLCDwindoworLEDinformingtheerror

statusoftheuser.

2.2.6.4.LSU

LSUreceivestheimagedatafromPVCorHPVCandmakethelatentimageonOPCsurface.Itusesthedualbeam,

LD.TheerrorsrelatedtoLSUareasfollows:

•ByLready

Whentheprintingisstarted,theenginedrivesthepolygonmotorofLSU.Afterthespeciedtimeiselapsed,ifthe

motorisnotinareadystatus,theenginedetectstheerrorthatthepolygonmotorisnotinareadystatus.Ifthiserror

happens,theenginestopsallfunctionsandkeepsitattheerrorstate.Also,theengineinformstheerrorstatusofthe

mainsystemandtheerrormessageisdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.

•ByHsync

Whenthepolygonmotorisready,theLSUsendsoutthesignalcalledHsyncandusedtosynchronizewitheachimage

line.So,iftheenginedoesnotdetectconsecutivelythesignalforaxedtime,itdenestheHsyncError.Ifthiserror

happens,theenginestopsallfunctionsandkeepsitattheerrorstate.Also,theengineinformstheerrorstatusofthe

mainsystemandthentheerrormessageisdisplayedatLCDwindoworLEDinformingtheerrorstatusoftheuser.LSU

ErrorRecovery:IftheLReadyorHsyncerrorhappens,thepaperisexitedbeforetheerrorcodeisinitiated.Theengine

modeischangedtorecoverymodeandtheengineinformsthemainsystemoftheenginemode.Theenginerechecks

theLSUerror,iftheerrordoesnotreoccurprintingisresumed.

Samsung PROXPRESS M332 SERIES Service Manual

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