The printer indicates when a supply level is very
low. Actual cartridge life remaining may vary.
Consider having a replacement available to install
when print quality is no longer acceptable. The
supply does not need to be replaced now unless the
print quality is no longer acceptable. Once an HP
supply has reached "very low", HP's Premium
Protection Warranty on that supply has ended.
Non-HP Black Cartridge
* Approximate only; varies depending on types of
documents printed and other factors.