Afficio 450 camera lense alignment

Question

hi can any1 der can help me how to align the camera lense of afficio 450... bcuz i cleane it up and den wen i return it back ....the print has no copy at all and tried to align it but i can get the exact alignment sometime my alignment is good but the copy is just like der is a mirror at the top of wat i print...is der any oder way dat i can align it with exact alignment... tenk in advance....sometimes i encounter error code SC 101 ... wat it means...