Brother MFC 7840W - Manual (Page 176)

162
Consumable items
D
1 Approx. cartridge yield is declared in accordance with ISO/IEC 19752.
2 Drum yield is approximate, and may vary by type of use.
Toner Cartridge Life Starter Toner Cartridge:
Approx. 1,000 pages
1
Standard Toner Cartridge:
TN-330:
Approx. 1,500 pages
(Letter)
1
High-Yield Toner Cartridge:
TN-360:
Approx. 2,600 pages
(Letter)
1
Drum Unit DR-360: Approx. 12,000 pages
(Letter)
2