Method of use: 1.Using a laser printer print circuit board wiring diagram to smooth of the thermal transfer paper; 2.by making machine to 150 - 180 ℃,the side of thermal transfer paper printed circuit deposited in copper clad plate,transfer; can also be used electric iron instead of the making machine, hand transfer; 3.after printed remove the transfer paper,put the copperclad plate into the ferric chloride solution for corrosion; 4.The final cleaning with gasoline toner on the circuit board.