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Make sure the battery is fully
charged
Recharge or replace a new
battery
Check if front door is closed
completely
Close front door completely
Check if supply is loaded correctly
Reload the supply
Check for dust or adhesive
accumulation on the print head.
Clean the print head
Check if print density is set
properly.
Adjust the print density and print
speed.
Poor Print
Quality
Check print head test pattern to
determine if head element is
damaged
Run printer self-test and check
the print head test pattern if there
is dot missing in the pattern
Gap/black mark sensor is not set
properly
Calibrate the gap/black mark
sensor
Make sure label size is set
properly.
Set label size correctly
Labels may be stuck inside the
printer mechanism.
Remove the stuck label.
The serial port setting is not
consistent between host and
printer.
Please reset the serial port
setting.
Paper Jam
The serial port cable pin
configuration is not correct.
Please replace the null modem
cable
Reduced
Battery life
Check battery date code, if
battery is one to two years old,
short life may be due to normal
aging.
Replace a battery.
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