Maintenance – Thermal Printhead Cleaning
Troubleshooting & LED Indicators
Fig-10
Power on the printer,
but the LED does not
light up
♦ Check the power connector is plugged
correctly
LED light turns red
(power/status) after
printing stops
♦ Check for software setting or program
command errors
♦ Replace with suitable label or ribbon
♦ Check if label or ribbon is all out
♦ Check if label is jammed/tangled up
♦ Check if mechanism is not closed(Thermal
Print Head not positioned correctly)
♦ Check if sensor is blocked by paper/label
Printing started, but
nothing was printed
on the label
♦ Check if label is placed upside down or if
label is not suitable for the application
♦ Select the correct printer driver
♦ Select the correct label and print type
When printing, label
is jammed/tangled up
♦ Clean the label jam, and if label is stuck on
Thermal Print Head, please remove it by using
soft cloth with alcohol
When printing, only
part of the contents
were printed
♦ Check if label or ribbon is stuck on the
Thermal Print Head
♦ Check if start position setting has errors
♦ Check if ribbon has wrinkles
♦ Check if ribbon supply shaft is creating
friction with the platen roller. If the platen roller
needs to be replaced, please contact your
reseller for more information
♦ Check if power supply is correct
When printing, part
of the label wasn’t
printed completely
♦ Check if Thermal Print Head is stained or
dusted
Printout not in
desired position
♦ Check if sensor is covered by paper or dust
♦ Check if liner is suitable for use, please
contact reseller for more information
♦ Check if label roll edge is aligned with Label
Width Guide
Unclear printout
♦ Check print darkness setting
♦ Check if Thermal Print Head is covered with
glue or stain
9
