XVII
The character
colour in thermal
paper no good
Pls choose high quality
thermal paper
There is
no
response of printer
The power
adaptor not
connected
Pls check power adaptor is
connected well or
not,power switch is turn on
or not
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 slection
error
Pls set the COM baud rate
accoridng to the COM info
on self check page