Zebra ZM400 - Manual (Page 113)

105 Troubleshooting
Print Quality Problems
3/27/07 ZM400/ZM600 User Guide 79695L-001 Rev. A
Print Quality Problems
Table 16 identifies problems with print quality, the possible causes, and the recommended
solutions.
Table 16 • Print Quality Problems
Problem Possible Cause Recommended Solution
General print quality
issues The printer is set at the
incorrect print speed. For optimal print quality, set the print speed to
the lowest possible setting for your application
via control panel, the driver, or the software. See
Adjust Print Speed on page 63 . You may want to
perform the FEED Self Test on page 116 .
You are using an incorrect
combination of labels and
ribbon for your application. 1. Switch to a different type of media or ribbon
to try to find a compatible combination.
2. If necessary, consult your authorized Zebra
reseller or distributor for information and
advice.
The printer is set at an incorrect
darkness level. For optimal print quality, set the darkness to the
lowest possible setting for your application via
the control panel, the driver, or the software. See
Adjust Print Darkness on page 62 . You may
want to perform the FEED Self Test on page 116
to determine the ideal darkness setting.
The printhead is dirty. Clean the printhead. See Clean the Printhead
and Platen Roller on page 90 .
Incorrect or uneven printhead
pressure. Set the printhead pressure to the minimum
needed for good print quality. See
Adjust
Printhead Pressure on page 53 .
The printhead is improperly
balanced. Call a service technician.
Long tracks of
missing print on
several labels Print element damaged. Call a service technician.