Looking at the R2000
Do remember that with larger printers, the amount left in the larger cartridge can be a smaller proportion of the full cart.
I've never seen this worked out in any detail. I've weighed new and used carts and suspect that this is the case, but since I only get the printers for a few weeks to review, I've never thought the data robust enough to publish.
bye for now
|Steamin' Mad by ahrensjt|
from Angered Subjects (Street Photography)
|Smile by Olymguy|
from Ultra Asian Indian Female Faces
|Space Shuttle Cockpit- by vbuhay|
from Aircraft Control Stick