A method and apparatus for correcting skew of an advancing sheet responsive to the detection of one or the other of aligned fiducial marks located near each of {HEAD ~ the opposite side edges} adjacent {TAIL ~ the sheet leading edge} 
A method and apparatus for correcting skew of an advancing sheet responsive to the detection of one or the other of aligned fiducial marks located near each of { HEAD ~ the opposite side edges } adjacent { TAIL ~ the sheet leading edge }
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 HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL