These images are 'printer friendly' in the sense that they're nicely laid out for printing your own manual.  They will not appear to be in any semblance of page-order until you print them and assemble the manual.  Printer geometries vary, so I can't say exactly how to load the paper in your printer for proper results, but what you want to end up with is back1 on the opposite side of front1, back2 on the back of front2, etc.
All images are 4"x10" and should fit, to scale, printed in landscape orientation on 8.5x11" paper.
Stack the 4 sheets in numerical order top to bottom with the 'back' side facing down (back4 against flat surface, front1 facing you).  Fold in half, and staple if you can.  For authenticity, trim 2.25" off what are now the top and bottom edges of the booklet and .5" off the outside edge to make a 5" wide by 4" tall manual that will look really spiffy alongside your other NES booklets. 