What's wrong with the engraving machine without cutting the knife?
1 first check the engraving machine knife pressure, and then check the lettering machine trolley to the main line. It's best to measure the power supply. Determine the front of the normal, you can determine the motherboard problem. Pickup lettering machine sales, accessories, services, personal profiles
When you turn on the machine, you'll get a knife next time. You can make sure the sports car is in line and the line is OKThen you have to check the power supply and the motherboard circuit under the knife. In general, no knife is related to the motherboardI suggest changing the motherboard and try it out
