User Manual

92 R4Mplus User Guide
Troubleshooting
Print Quality Problems
Print Quality Problems
Table 15 • Print Quality Problems and Solutions
Issue Potential Problem Recommended Solution
General print quality issues You are using an incorrect
media and ribbon combination
for your application.
Consult your authorized reseller/
distributor for information and advice.
The printer is set at an
excessive print speed to
achieve optimal quality.
For optimal print quality, set the print
speed to a lower setting via ZPL II, the
driver, software, or front panel.
The printer is set at an
excessive darkness level to
achieve optimal quality.
For optimal print quality, set the darkness
level to a lower setting via the front
panel, the driver, or the software.
The printhead is dirty. Clean the printhead according to the
instructions in Clean the Printhead and
Platen Roller on page 83.
There is light printing (or no
printing) on the left or right
side of the label or the printed
image is not sharp.
The pressure adjustment dials need to be
adjusted. Follow the printhead pressure
adjustment instructions on Set Printhead
Pressure on page 41.
Gray lines on blank labels
with no consistent pattern
The printhead is dirty. Clean the printhead according to the
instructions in
Clean the Printhead and
Platen Roller on page 83.
Light, consistent vertical
lines running through all
labels
The printhead or platen roller is
dirty.
Clean the printhead, platen roller, or both
according to the instructions in Clean the
Printhead and Platen Roller on page 83.
Intermittent creases on the
left and right edges of the
label
There is too much pressure on
the printhead.
Reduce the printhead pressure. See Set
Printhead Pressure on page 41.
Wrinkled ribbon The ribbon is not loaded
correctly.
Load the ribbon correctly. See Load the
Ribbon on page 36.
The darkness setting is
incorrect.
Set the darkness to the lowest possible
setting for good print quality. See
DARKNESS on page 49.
Incorrect printhead pressure or
balance.
Set the pressure to the minimum required
for good print quality. See Set Printhead
Pressure on page 41.
The media is not feeding
correctly. It is walking from
side to side.
Make sure that the media guide and
media supply guide touch the edge of the
media.