lntelligent controller of famous factory has higher stability. MS-200 utilizes running friction force of packing film to make printing head rotate, with correct and adjustable printing position. Silica gel roller is fire-resistant and durable in use. Non contact switch adopts synchronous signaland are more stable. Inking wheel imported from the U.K. can prints more clearly with stronger adhesive force. Scope of Application lt is applicable to auxiliary code-printing of successive packing mechanical equipment like pillow type and vertical type packing machine, with wide application in medicine, food and daily chemicals industry.