Brother MFC 7860DW - Manual (Page 155)

Specifications
139
D
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 Starter Toner Cartridge:
Approx. 700 pages (Letter)
1
Standard Toner Cartridge:
TN-420
Approx. 1,200 pages
(Letter)
1
High-Yield Toner Cartridge:
TN-450
Approx. 2,600 pages
(Letter)
1
Drum Unit DR-420 Approx. 12,000 pages
(Letter)
2