Lexmark Fuser Unit 40X7744 220-240VLexmark Fuser Unit LRP Program Type 1 A4 Fuser Return Program, 220 240V The operator panel displays message 80 Replace maintenance kit at the required maintenance intervals. You must replace the fuser at this interval to maintain print quality and printer reliability. Check the two digit type code on the fuser or check device information using the built in web server or menu page to obtain the replacement part number. There are several warnings