4.2 Mechanism Fine Adjustment to Avoid Ribbon Wrinkles 
 
Ribbon wrinkle is related to the media width, thickness, print head pressure balance, ribbon film characteristics, print darkness 
setting…etc. In case the ribbon wrinkle happens, please follow the instructions below to adjust the printer parts. 
 
Ribbon Tension Adjustment Knob has 5 positions for adjustment. Use screw driver to change the ribbon tension position.