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