Machine features Lead edge feeding system. ( Lead edge vacuum roller feeding system, sun feeder options. ) Top / bottom printing system. Dual slot system High quality material with suitable fittings is used for the machine. The drive gears adopt alloy steel, and then heated to ensure hardness, with grinded surface. All the lower feeding roller used a bigger diameter to increase touch area of paper, to ensure fluent processing and accurate printing. There are oilless bearings between frame and eccentric gear seat to reduce wear-out of frame and increase machine using life. We adopt no-key connection(means swelling connection) to reduce printing inaccuracy. According international security standard, all the parts with safety angle and all the motor with protective cover. All the rollers adopt superior material with hardness and thickness chrome and two times grinding, and passed balance testing. Automatic return to zero position. The machine is designed according to high requirement, reliability, safety and beautiful feature, automatic change / save order and easy to operation.