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