Check the paper feed tray and printing area. Also as well as roller assembly for anything stuck that might cause an obstrcution.
Are you sure you removed all the orange packing materials and tape?
EB
EOS 1D, EOS 1D MK IIn, EOS 1D MK III, EOS 1Ds MK III, EOS 1D MK IV and EOS 1DX and many lenses.
