ISSUE
General print quality
issues - the printed
image does not look
right.
No print on the label.
Loss of printing
registration on labels.
Excessive vertical drift in
top-of-form registration.
Printing too light or too
dark over the entire
label.
Smudge marks on
labels.
Mis-registration/skips
labels.
Vertical drift in top-of-
form position.
Vertical image or label
drift
The barcode printed on
a label does not scan.
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CHICAGO • ATLANTA • DALLAS • LOS ANGELES • MINNEAPOLIS • NYC/PHILA • SEATTLE • MEXICO • CANADA
PAGE 6 OF 18
TROUBLESHOOTING
POSSIBLE CAUSE
The printhead is dirty.
You may be using the
wrong power supply.
The printhead has worn out.
The platen (drive) roller
may need cleaning or
replacement.
Media has been loaded
incorrectly.
The platen (drive) roller is
dirty.
The media is loaded
incorrectly.
The media or ribbon is not
designed for high-speed
operation.
Improper label format.
Improper label format.
The platen (drive) roller is
dirty.
The platen (drive) roller is
dirty.
The media is loaded
incorrectly.
Incompatible media.
There is not enough
blank space around the
barcode.
There is a void or missing
print in a barcode, text or
graphic in a printed form.
Voids can look like a white
bar area in a barcode.
1-800-295-5510
Clean the printhead. See Cleaning the Printer.
Verify you are using the power supply that came with this
printer.
Replace the printhead. The printhead is a consumable item
and will wear over time due to friction between the media
and printhead. Using unapproved media may shorten
printhead life or damage your printhead.
Clean or replace the platen (drive) roller.
The media printable surface must face up towards the
printhead. Follow the instructions for Loading Media Roll.
Clean the printhead and platen roller. See Cleaning the
Printer.
Load media correctly. See Loading Media Roll.
Replace supplies with those recommended for high-speed
operation.
Check your label format and correct it as necessary.
Check your label format and correct it as necessary.
Clean the printhead and platen roller. See Cleaning the
Printer.
Clean the printhead and platen roller. See Cleaning the
Printer.
Ensure that the media is loaded correctly. See Loading
Media Roll and Printing a Test Label.
You must use media that meets the printer specifications.
Ensure that the inter-label gaps or notches are 3 to 4 mm
and consistently placed.
Leave at least 1/8 in. of blank space around the barcode
(referred to as the quiet zone) and other printed areas on
the label and between the barcode and the edge of the
label. This requirement varies by barcode type.
Perform Cleaning the Printer to remove contaminants on the
printheads. Reprint and test the barcode.
Use the Printer and Network Configuration Reports from
Cleaning the Printer to see if the printhead has damaged
printhead elements. Verify that the large black bar on the
bottom of the printed test label does not have any streaks
or voids after thoroughly cleaning the printhead.
uline.com
RESOLUTION
0518 IH-6323