6.3 Troubles Occur During Printing
Coloured stripe in the paper
Install the roll paper
incorrectly
Check if the roll paper is installed
Use recommended thermal roll
paper
The thermal head or print
roller is dirty
Clean the thermal head or print
roller
Increase the print density level
Open the printer cover, check the
paper path and remove jammed
paper
Vertical print words missing
The thermal head or print
roller is dirty
Clean the thermal head or print
roller
Contact your dealer for assistance