... printer,Receipt printer,57mm and 44mm Paper width,RS232 interface,TTL interface, Parallel interface Dot matrix printer Dot matrix bill printer Dot matrix ... and paper nearly end sensors function Serial(RS-232C , TTL) interface / Parallel interface Easy to use and simple to maintain Abundant figure/ ... T3 receipt printer , 44mm or 57mm Paper width , RS232 interface , TTL interface , Parallel interface