{HEAD ~ The serial printer interface} 26 transfers {TAIL ~ the image data controlling code} to the serial printer 16 
transfers
{ HEAD ~ The serial printer interface } 26 transfers { TAIL ~ the image data controlling code } to the serial printer 16
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH