1)The competive qulity 2)The proper price 3)The punctual deliverytime 4)The best after-sale service ... sensor, 6" sensor, raster sensor,new contact stripe, raster, data cable, Auto Paper feeder, Light Electricity Switch, power fan, suction fun ... , carriage station, carriage frame, carriage frame cover, USB printing cable, Printing cable, USB printer cable(U solt), power line, copper loop, white pads ...