Datamax ?-class series Maintenance Manual page 41

3.0 Overview
This chapter discusses a number of topics related to troubleshooting the printer, covering techniques
necessary for isolating and correcting printer faults. When faults are isolated to a PCB board, it is
recommended that the entire board be replaced, as it is not generally feasible to perform component level
service in the field.
3.1 Troubleshooting
The printer is designed to provide easy access to most components. Should the printer malfunction and
require service, the following procedures should be used to isolate and correct that malfunction.
3.1.1 Initial Steps
Always unplug the unit before attempting service and be sure that the printer has been placed on a
level, stable surface.
CAUTION
Perform the following preliminary troubleshooting steps to confirm that a printer problem exists:
•
Confirm that AC outlet being used to power the unit has the correct AC output voltage, and that the
voltage is within the specification for the printer (see the Operator's Manual for specifications).
•
Confirm that the unit has been installed in an area that is within acceptable environmental conditions
(see the Operator's Manual for specifications).
•
Perform a visual inspection of the unit and remove any accumulations of dirt or dust from the printer
and the printer components (see Section 2).
•
Confirm that the printer has been correctly loaded with media of an acceptable type (see the
Operator's Manual for specifications).
3.2 General Problem Resolution
Use the table below to troubleshoot general printer problems. First identify the problem, and then go
down the list of possible causes, which are listed in order of probability. If you have a display-equipped
printer, warning and error messages can be found in Section 3.3.
Troubleshooting
3-1