80MM Thermal Receipt Printer User Manual
19
The printer print
light in density
The print head not
clean for a long
time
Put cotton dipped in
anhydrous alcohol and
gently wipe the printer core
ceramic parts until clean
enough
The thermal paper
is not good
Pls choose high quality
thermal paper
There is no
response on printer
The power
adaptor not
connected
Pls check power adaptor is
connected well and power
switch is on.
Printer can self test,
but can not print
online
Driver port
selection error
Pls select the correct print
driver port based on the
actual connection port
Printer serial port
does not print or
print garbled
Bit rate selection
error
Pls set COM baud rate
according to the COM info
on self test page