An importantkey to nAiableoperation of your Star LaserPrinter4is
knowinghowtorespondwhentroubleoccurs.Someproblemconditionscan
behandledon the spotby theprinter operator.Othersrequireservicingby
trainedpersonnel.Thischapterwillexplainwhentodowhat.Itwillalsohelp
youdeal withthepaper jammingandother operationalproblems.
9.1 ERRORMESSAGESDISPLAYEDONTHESCREEN
The controlpanel screen may displayavariety of messages duringthe
courseofoperationofthe StarLaserPrinter4.Youarealreadyfamiliarwith
thedisplaysequenceduringpower-up,andwhenprogrammingtheprinter.
Somemessagesprovideinformationaboutthepapersupplyin the cassette
orthe conditionoftheEP-Lcartridge.Othershaveto dowithfontsor emu-
lations.
Anotherwayof consideringerrorsisthat someofthem resultfromfailures
inhardwareorsoftware Othererrors a~ functional,meaningthateitherthe
printer operatoror the host computer hascommanded thecontroller to
performan operationthatis beyonditsdesignedcapabilities.
Ifthe printermalfunctionsforsomereason,warningmessageswill appear
onthescreen,recommendingwhatactionyoushouldtake.Themostserious
aremessagesthattellyou tocallfor repairservice.Somemessagesconcern
lessseriousconditionsthatcanbehandledby theprinteroperator.Informa-
tionmessagesrelateacommunicationproblemwiththehostcomputer,but
donot affecttheprinter’soperation.Thesemessagesa~ summarizedhere.
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