C3108ADeveloper - HP Developer assembly - For developing the three colored toners applied to the paper
C3966-67901Developer - Developer assembly - For developing the three colored toners applied to the paper
C3967-67901Drum - Photoconductive drum cartridge - All four colors are applied directly to drum, then transferred to the paper (30,000 pages typical life)
C3969-69001Fuser Assembly - Fusing assembly (for 110V to 127V, 60Hz operation) - Bonds toner to paper by heat
C3969-69002Fuser Assembly - Fusing assembly (for 220V to 240V, 50Hz operation) - Bonds toner to paper by heat