This is the method of adjusting the belt, the printer uses adaptive adjustment of the belt tensioner. There are fixing screws on the back of each seat belt tensioner. Please loosen all fixing screws and adjust the belt tension automatically by moving the print head according to the video below (please move the print head in the direction shown in the video and tighten the screws after adjustment). Please refer to the photos and videos in the link below.
1.Please loosen all the all secure screws.
2.Belt Adjustment
Belt Adjustmeng Video