A method of reading and decoding scrambled and encoded two dimensional data represented on a sheet of media as a dot matrix includes the step of detecting a data area on the sheet of media by detecting targets on {HEAD ~ the sheet} of {TAIL ~ media} 
of
A method of reading and decoding scrambled and encoded two dimensional data represented on a sheet of media as a dot matrix includes the step of detecting a data area on the sheet of media by detecting targets on { HEAD ~ the sheet } of { TAIL ~ media }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL