{HEAD ~ Each individual scanning entity} has an error corrector for correcting erroneous scanned bar code information using {TAIL ~ the locally stored printhead defect models} 
{ HEAD ~ Each individual scanning entity } has an error corrector for correcting erroneous scanned bar code information using { TAIL ~ the locally stored printhead defect models }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL