Printronix M4L - Troubleshooting Sensor and Paper Out; Media Holder and Advancement Problems; Tear Mode and Paper Detection Failures

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Problem Possible Cause Recovery Procedure
Mediaholdersdon’tslide
opentoallowremovalor
installationofrollmedia.
Mediaholderlockinglever(s)wereaccidently
movedtothelockposition.
Rollmedia‐Placelockingleversinunlocked(full
up)position.NOTE:Lockingleversshouldonlybe
usedforfanfoldmedia.
NOTE:Iffanfoldmediaisneverused,lockinglevers
canberemovedfromthemediaholdersby
removing2Phillipsheadscrews.
Mediawillnotadvancewhen
printjobissentorwhenthe
FormFeedkeyispressed.
Leftsideofmediacoverisnotcompletely
closed.
Verifyleftsideofmediacoveriscompletely
closed.NOTE:Coveropenswitchislocatedunder
rightsideofcover.
TearMode‐Mediadoesnot
tearproperlyagainstthetear
bar.
Peel‐Coverincorrectlyplacedinforward
positionandisinterferingwithTear‐Off.
SlidethePeelCovertowardthebackoftheprinter
whenTearmodeisused.
Printerdoesnotdetecta
paperout“NoPaper”fault
conditionwhenanactual
paperoutconditionexists,
causingalossofprintedlabels
aftertheendofthemedia
roll.
CalibrateSensorviaConfigurationUtilityor
Power‐OnUtilitywasneverperformed.
NOTE:UnlessasuccessfulCalibrateSensoris
performed,
theprintermaybeabletodetectTOF
butnotabletodetectanactualpaperout(no
paper)condition.
CalibrateSensorwasperformed,butPaper
HeightandGapvalueswereneverentered
whenThresholdDetectionwassettoAUTO.
CalibrateSensorwasperformed,butPaper
HeightorGapvaluesentereddidnotmatch
theinstalledmedia.
InConfigurationUtility,ifThresholdDetection=
AUTO,doaCalibrateSensor(AutoCalibrate)
makingsurebothPaperHeightandGapvaluesare
enteredandmatchtheactualheightofthe
installedmediaandMarkorGapheightpriorto
enablingCalibrate.
CalibrateSensorwasperformed,butthe
MaximumLengthvalueenteredwasthesame
orlessthanthePaperHeightvalue.
MakesurepriortoenablingCalibratethatthe
MaximumLengthvalueintheCommonmenu=
10.00inch(default)orissettoavalue1.0inchor
greaterthanthe
actualPaperHeightinstalled.
CalibrateSensorwasperformed,butthe
correctMediaTypewasnotselected.
PriortodoingaCalibrateSensor,makesure the
MediaTypeselected(GAP,BlackMarkor
Continuous)matchesthemediatypeinstalled.
CalibrateSensorwasperformed,butano
paper(paperout)conditionwasnottested
priortorunningaprintfile.
AfterdoinganAutoCalibrateandbeforesendinga
printfile,removethemediafromtheprinterand
closethemediacovertoverifytheLCDshowsa
‘NoPaper’fault.
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