For that info I would recommend you call the Support Dept: 1-800-821-2797.
my wonderful Workcentre 7125 showed today suddenly 0% cyane toner level - last week was by over 70%...
Ok, I changed the cartridge with an new original one - same again, 0%.
Now I want to try to reset the NVM memory.
Does anyone know the right NVM code for the 7125 and the cyane cartridge?