The side registration adjustment is made by moving the side registration guide to the designated page size of the side registration adjustment command. The side registration guide moves to the following five positions depending on the media size in order of numbers 1 to 5 and then back to 1. 1. Letter or Legal (home position) 2. A4 3. Executive 4. B5 5. A5 Figure 1-44 Side registration adjustment operation (DP) home-position sensor ENWW Duplexer 57