Fuser Unit compatible with models FK-1152 and FK-1150.Designed for use with printers M2040dn, P2235dw, P2040dw, M2540dw, M2040, P2235, P2040, M2540, M2635, M2635dw, M2640idw.Replaces worn or damaged fuser components to restore print performance.Installs directly into the printer without modification.consistent heat and pressure during printing process.