In this case, 95% for sure. You have 2 different parts in the printer which is " Toner Cartridge and Drum cartidge ". it looks like one. but need to be saparated.

Such as :

Brother Laser printer (Toner , Drum cartridges)

Lexmark E260, E360, E460

Dell 2230, 2330, 3330 3333

Dell 1700, 1710, 1720

and more....