Maintenance - Printronix ThermaLine T5000r User Manual

Chapter 2

Maintenance

Table 7. Troubleshooting the Validator
Symptom
The printed bar codes are
causing error conditions.
(continued)
Maintenance
WARNING
Class 2 laser light. Do not stare into the laser beam or a
reflected image of the laser beam.
WARNING
Using controls, making adjustments, or performing
procedures other than those specified herein may result in
hazardous radiation exposure.
The validator is a self-contained unit that requires only periodic
cleaning. Every so often, power down the printer and use a
household glass cleaner and a dry, lint-free cloth to clean the glass.
If the problem with the printer is not fixed by one of these
troubleshooting methods, call your authorized service
representative or the Printronix Customer Support Center. See
"Contact Information" on page 95.
94
Solution
Bar code spacing.The validator requires a
•
minimum distance of 1/2 inch or 20 times
the minimum element width, whichever is
greater, between bar codes.
• Printer speed. See "Print Speed Limits" on
page 74. If problems persist, decrease the
Print Speed in the MEDIA CONTROL menu.
Be sure the bar code is not printing on the
•
extreme edges of the label.
Clean the printhead. See "Cleaning" in the
•
Quick Setup Guide .
Check that paper and ribbon are clean,
•
unwrinkled, and installed correctly.
Check the number of bar codes being
•
validated concurrently. The validator can
track the performance of up to four bar
codes at one time.