User's Manual

11.General Troubleshooting
1: Why serial port printer printing messy code?
A: Ensure the baud rate setting in the PC is same as the printer baud rate. ( we can
see printer baud rate from self test page)
2: Self printing test is ok,but printer does not work after driver installation.
A: Recheck the installation according to above installation wizard and see if we
selected the right port or ask service center for advice if needed.
3: Malfunction of paper feeding?
A: Use soft brush to clean the paper sensor and try again or send it to the service
center for repair.
4．Malfunction of the indicator light
A: Check the cable connecting way / adapter / power cord / switch on or off? Or
contact the service center for repair.
5．Messy code printing except Arabic numeral printing.
A: language switching incorrectly,please turn on the SW-4 switch on the DIP
switches.
6．Red indicator keep flashing during the printing.
A: Usually it is due to the high temperature of the print head. If printing
stopped,please contact the service center for repair.