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6. Troubleshooting
6.1 Common Problems
The following guide lists the most common problems that may be encountered when operating
this bar code printer. If the printer still does not function after all suggested solutions have been
invoked, please contact the Customer Service Department of your purchased reseller or
distributor for assistance.
Problem
Possible Cause
Recovery Procedure
Not Printing
Check if interface cable is well
connected to the interface connector.
Re-connect cable to interface.
The port specified in the Windows
driver is not correct.
Select the correct printer port in the
driver.
No print on the
label
Label loaded not correctly.
Follow the instructions in loading
the media.
Continuous
feeding labels
The printer setting may go wrong.
Please do the initialization and
gap/black mark calibration.
Paper Jam
Gap/black mark sensor sensitivity is
not set properly (sensor sensitivity is
not enough)
Calibrate the gap/black mark
sensor.
Make sure label size is set properly.
Set label size exactly as installed paper
in the labeling software or program.
Labels may be stuck inside the
printer mechanism near the sensor
area.
Remove the stuck label.
Poor Print Quality
Top cover is not closed properly.
Close the top cover completely and
make sure the right side and left side
levers are latched properly.
Wrong power supply is connected
with printer.
Check if 24V DC output is supplied by
the power supply.
Check if supply is loaded correctly.
Reload the supply.
Check if dust or adhesives are
accumulated on the print head.
Clean the print head.
Check if print density is set properly.
Adjust the print density and print
speed.
Check print head test pattern if head
element is damaged.
Run printer self-test and check the print
head test pattern if there is dot missing
in the pattern.
