The fontbook test page will guide you through a series of steps and will print you a set of instructions based upon your input its very important that you follow the instructions given.
If your paper feeds into your printer then choose one of the top two choices based upon how you reinserted the paper (Normally this is with the printed text up). If your paper feeds down from the top then choose one of the bottom two choices based upon how you reinserted the paper (Normally this is with the printed text down).
A sample of printed instructions