Printronix T5000 Series User Manual page 55

Table 4. Troubleshooting (continued)
Problem
The validator laser beam does not
cover the entire width of the
labels being printed.
Printing 3-mil or 5-mil x-
dimension width bar codes
constantly causes error
messages.
The printed labels look clean, but
the validator is still reporting an
error message.
The "Calibration" indicator on the
validator is flashing and/or the
printer display indicates that the
validator is out of calibration.
The error message "Ambient
light/Validator failure"
appears on the printer display.
The validator reports a quiet zone
violation when printing bar codes
with an x-dimension greater than
40 mils.
Solution
1. Make sure that the validator is located at the
right notch. Refer to Figure 3B for detail on
location of notch.
2. After locating the right notch, use "Beam
Shift" to move the beam horizontally to cover the
entire width of the labels.
The validator does not recognize x-dimensions
as small as 3-mil or 5-mil. If you have to print bar
codes this size, disable the validator to prevent
error reports. See "Enabling and Disabling The
Validator" on page 30.
The validator glass may be dirty, distorting the
report results. Power down the printer and
validator. Clean the glass using a household
glass cleaner and a dry, lint-free cloth.
Calibrate the validator. See "Calibration" on
page 22.
The validator is in an area of the room with
excessive ambient light. See "Ambient Light
Fault" on page 48.
The printer does not recognize a bar code with
an x-dimension greater than 40 mils. If you have
to print bar code this size, disable the validator
to prevent error reports. See "Enabling and
Disabling The Validator" on page 30.
Error Messages
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