Zebra EM 220 Wartungshandbuch PDF herunterladen (Seite 49)

Rev. 1.04

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EM 220

Mobile Printer Service Manual

7. Troubleshooting

Every undesired outcome can be investigated with fault tree analysis which is one of RCA (Root Cause

Analysis). Fault tree analysis is a graphical representation of the major faults or critical failures associated

with a product, the causes for the faults, and potential countermeasures. This way user can identify possible

causes easily.

There are six undesired outcome, divided by symptom category :

z Inadequate LED response

z Printing trouble

z MSR operation

z Diagnostic (self-test / hexa-decimal dump)

z Communication interface

7-1 Inadequate LED response

E1-1 : Poor insert battery E1-2 : Poor parts E1-3 : Discharged battery E1-4 : Regulator failure

E1-5 : MCU failure E1-6 : Poor E1-7 : Cover open sensor failure E1-8 : MCU failure

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Zebra EM 220 Wartungshandbuch Seite 49