80 Fuser Maintenance is displayed at 120,000 copies indicating the fuser assembly needs to be replaced to maintain the print quality and reliability of the printer. After replacing the kit, the fuser maintenance count must be reset to zero to clear the maintenance message. Compatible with: Lexmark C780dn Lexmark C780dtn Lexmark C780n Lexmark C782dn Lexmark C782dtn Lexmark C782n