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Chapter 3 — Troubleshooting and Maintaining the Printer
30 PF8d/PF8t Printers User’s Guide
Troubleshooting
Problem Solution or Reason
LED not green when power
is on.
Make sure connections on the power supply are securely plugged
into the AC receptacle on the printer and to an AC outlet.
LED is green but printer will
not feed.
• Label taken sensor active, label not removed.
• Make sure correct type of interface cable is securely plugged in
to both the printer and computer.
Printer seems to be working
but nothing prints.
Direct Thermal Printing
• Check that the heat sensitive side of the media faces the
printhead.
• Verify that the media is intended for direct thermal printing
by testing to see if the media is blackened by heat from a hot
object (70
°C [160°F] or higher).
Thermal Transfer Printing
• Verify that the printer is loaded with thermal transfer ribbon
and that the ink coated side faces the media surface.
Print quality is poor. Clean the printhead. If cleaning the printhead does not improve
print quality, adjust the printhead contact.
Partial labels printed. • Print carriage is not completely locked.
• Label caught on printhead. Remove label and clean
printhead.
Printer continues print or
feed when it should stop
printing.
• Label caught on the label gap sensor. Open the top cover,
remove the label and clean the printhead using the Cleaning
Card or isopropyl alcohol.
• Possible firmware problem.
Printing stops and indicator
LED glows orange.
• Possible problem with label gap sensor. Perform an auto
adjust in Auto-Sensing mode.
• Possible media jam.
• Possible firmware problem.
Label stuck on roller. Open the peel-off mechanism and peel off the stuck label while
manually rotating the roller. Do not use any sharp tools to
remove the label. Clean the peel-off mechanism using the
Cleaning Card or isopropyl alcohol.
Label taken sensor does not
hold printing until the label/
tag has been removed.
• Label/tag bend down due to excessive length and/or too thin
or soft media.
• Label or tag too short.
• Label taken sensor or cable defective.
Indicator LED flashes red
and printing is interrupted.
Overheated. Wait for the printer to cool down and the indicator
LED changes to green and printing (if halted) resumes.