The magnetic field produced by the coil of the stepper motor interferes with {HEAD ~ the capability} of {TAIL ~ the readhead} to recognize the magnetic indicia on the check 
of
The magnetic field produced by the coil of the stepper motor interferes with { HEAD ~ the capability } of { TAIL ~ the readhead } to recognize the magnetic indicia on the check
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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH