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Power On Self-Test
The printer performs a self diagnostic test each time it is powered up. If any
faults are detected at that time, an error message will be displayed on the
LCD.
Should problems arise with printing or print quality, the printer is equipped
with a set of internal diagnostic tests which may be used to aid in isolating
problem areas. Use the six key pad on the Secondary Operator's Panel to
access the Advanced/Diagnostic levels of the built-in menu system.
Access to this level is controlled by the setting of DIP Switch S3–1 on the
Printer Controller PCBA (see page 2–2) or additionally, when using the LP+,
IGP/PGL or IGP/VGL emulations, by simultaneous depression of the SHIFT
and
keys on the Secondary Operator's Panel when in the OFF LINE mode.
The built-in diagnostic function provides tests for the proper operation of the
printer as well as the capability to print configuration labels (reports printer
set-up parameters) and test labels (checks for possible print defects).
Error Messages
The printer performs a Power On Self Test (POST) every time power is
turned on. The POST tests the condition of sensors and performs a RAM test
and ROM checksum test. If errors are detected, an error message is sent to
the LCD. ROM and RAM tests are performed only during the POST.
Sensor errors will generate error messages any time they occur. Should a
sensor error condition persist after an alarm clear, the LCD will continue to
display the error message until the condition is corrected.
Preparing for 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 the malfunction.
Troubleshooting
6–3
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Table of Contents
Troubleshooting
