c 7 TROUBLESHOOTING AND MAINTENANCE

The followingsectionon troubleshootingandmaintenanceis intendedonly as a brief guide. Remember that your printer is a highly sophisticated electronicdevice,whichalso containshigh voltageinside.For that reason, only carry out thoseoperationsthat ate describedin this chapter.

CAUTION: Anyattemptto carryoutoperationsotherthanthosedescribed heremayresultin electricshockand/ordamageto theprinter. Whencarryingoutanyrepairsor maintenance,alwaysfollow the instructionscarefidly.

TROUBLESHOOTING

Yourprinter is a reliablepiece of precisionmachinery,which shouldnot causeyouanytrouble,providedthatitisusedandtreatedsensibly.However, if you do experiencea minorproblem,the few tips belowshouldhelp you avoidhavingto makean unnecessaryservicecall.Thefollowingtablegives you ideason whereto look in this sectionif you experienceproblems:

Region of fault Description

Power supply

Power is not beingsuppliedtotheprinter

Printing Theprinterdoesnotprin~orstopsprinting

Theprintisfaintoruneven

Dotsaremissing in charactm or graphics

Whileusing application software, fonts orcharactm cannotbeprinted The printout is not what is expected when running a program

Paper feeding Single sheets do not feed properly (without ASF) Continuous pap& does not feed properly with the tractor feed The ASF is not operating or is not feeding paper properly

Paper park(switching between continuous paper and cut she&a) is not working properly

Text is being printed all on one line, or with extra blank lines

Page length and margin settings are not what is expected.

Remember- it is betternotto attemptoperationsor ~pairs aboveyourlevel of competence.Otherwise,you run the risk of damagingthe printer.

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Star Micronics LC-20 user manual Troubleshooting and Maintenance