Installation instructions are NOT included with this part! This Document Feed ADF Roller Separation Holder is compatible with the following Printer Model Numbers: MFCL6900DW, MFC-L6900DW, MFC8540DN, MFC-8540DN This Roller is located in the Auto Document Feed area at the top of the printer. Don't see your model number? send a message so we can assist you in obtaining the correct part!