It is recommended that the maintanance kit be installed every 85,000 pages (based on an average of 3 pages per job and approximately 5% print coverage per colour) to maintain the print quality and reliability of the device.
HP Fusing assembly, Laser, 200000 pages, Color LaserJet 2700, Color LaserJet 3000, Color LaserJet CP3505, Color LaserJet 3600, Color..., 3.53 lbs (1.6 kg)