... parts, like printer head, pin, head cable, guide, main board, power board, carriage, RDA, ribbon mask, tractor, gears... 2) ... roller, transfer roller, separation pad, pick up roller, format board, power board, scanner, and fuser unit... 3) Barcode (Label) printer ... parts: scanner head, mother board, power board, main motor, belt, platen roller, sensor, ribbon supply tube ...