Zebra ZD420 - Page 96

88
Troubleshooting
Printing Issues
1/13/2016 ZD420 User’s Guide 212485-001 Rev. A
Loss of printing
registration on
labels. Excessive
vertical drift in top-
of-form
registration.
The platen (drive) roller is
dirty.
Clean the printhead and platen roller.
Cleaning the Printhead on page 115 and
Platen Cleaning and Replacement
on page 124
The media type is set
incorrectly.
Set the printer for the correct media type
(gap/notch, continuous, or mark). See Run a
SmartCal Media Calibration on page 40. or if
it still skips labels try a Manual Media
Calibration on page 109.
The media is loaded
incorrectly.
Load media correctly. See Loading Roll
Media on page 32.
Long tracks of
missing print on
several labels
Printhead element
damaged.
Call a service technician.
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.
Smudge marks on
labels
The media is not designed
for high-speed operation.
Replace supplies with those recommended
for high-speed operation.
Mis-registration/
skips labels
The printer is not calibrated. Calibrate the printer. See Run a SmartCal
Media Calibration on page 40. or if it still
skips labels try a Manual Media Calibration
on page 109.
Improper label format. Check your label format and correct it as
necessary.
Vertical drift in
top-of-form
position
The printer is out of
calibration.
Calibrate the printer. See Run a SmartCal
Media Calibration on page 40.
The platen (drive) roller is
dirty.
Clean the printhead and platen roller. See
Cleaning the Printhead on page 115 and
Platen Cleaning and Replacement
on page 124
Table 2 • Printing Issues (Continued)
Issue Possible Cause Recommended Solution