The Axiom Maintenance Kit for HP LaserJet 4100 (C8057 - 69001) is designed to ensure optimal performance and longevity of your printer. This kit includes a refurbished fuser assembly that has been thoroughly cleaned and tested, ensuring it meets or exceeds original specifications. It is compatible with the HP LaserJet 4100 printer and comes with a 30 - day limited warranty. The maintenance kit is essential for maintaining print quality and reliability, making it a valuable addition to your printing setup.