User guide

Print Quality Problems
110
57512L-004 110PAX4/R110PAX4 User Guide 6/29/11
Printing too light or
too dark over the
entire label
The media or ribbon is not
designed for high-speed
operation.
Replace supplies with those recommended for
high-speed operation.
You are using an incorrect
combination of media 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.
You are using ribbon with
direct thermal media.
Direct thermal media does not require ribbon. To
check if you are using direct thermal media,
perform the label scratch test in When to Use
Ribbon on page 37.
Incorrect or uneven printhead
pressure.
Set the pressure to the minimum needed. See
Printhead Pressure Adjustment on page 97.
Smudge marks on
labels
The media or ribbon is not
designed for high-speed
operation.
Replace supplies with those recommended for
high-speed operation.
Misregistration/skips
labels
The print engine is not
calibrated.
Recalibrate the print engine.
Improper label format. Use correct label format.
Misregistration and
misprint of one to
three labels
The platen roller is dirty. See Clean the Printhead and Platen Roller
on page 93.
Media does not meet
specifications.
Use media that meets specifications.
Vertical drift in
top-of-form position
The print engine is out of
calibration.
Calibrate the print engine.
Normal tolerances of
mechanical parts and
print engine modes.
Note • A vertical drift of
± 4 to 6 dot rows
(approximately 0.5 mm)
is within normal
tolerances.
1. Calibrate the print engine. See Calibrate
Media and Ribbon Sensor Sensitivity
on page 77.
2. Adjust the label top position setting. See
Adjust Label Top Position on page 82.
The platen roller is dirty. Clean the platen roller. See Clean the Printhead
and Platen Roller on page 93.
Table 11 • Print Quality Problems (Continued)
Problem Possible Cause Recommended Solution