Step 1: Open the left side of the machine. （There are lids that can be opened on the left and right sides of the machine. Note: It’s on the left）

Step 2: Turn the active knob. The speed is usually set to 5-10.

If you want to know how to adjust the printing speed of the machine, you can refer to this video: https://www.subli-star.com/help-center/technical-videos/adjust-printing-speed-of-dtf-machine/