7.1 Replacing Consumables 125
Drum Cartridge
The drum cartridge consists of a photosensitive drum (drum) and a development unit. An
electric charge is first projected to the drum and develops a print image on the drum's
surface. For information on when and how to replace the drum cartridge, refer to "Life of
Consumables" (P. 183) and "Replacing the Drum Cartridge" (P. 129).
Fuser Unit
The fuser unit is a component in the printer that uses heat and pressure to fuse toner onto
paper. The fuser unit becomes very hot when the printer is in use, so do not touch it. When
you replace the fuser unit, also replace the feed roller for the tray 1 at the same time.
For information on when and how to replace the fuser unit, refer to "Life of Consumables"
(P. 183) and "Replacing the Fuser Unit" (P. 132).
Product Name Product Code
Page Yield
(Reference Value)
Drum cartridge CT350604 Approx. 20,000 pages
Product Name Product Code
Page Yield
(Reference Value)
Fuser unit 220V EL300689 Approx. 50,000 pages
Fuser unit 110V for Taiwan EL300690 Approx. 50,000 pages