4.2.3  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 indexes for adjustment. Use flat screw driver to change the ribbon tension.