Canon LBP PX II Supplies

The HP 92274A cartridge has an approximate yield of 3350 pages.

A "Supply Problem" message on the LBP PX II usually points to a chip-communication hiccup rather than an empty cartridge. Power-cycle the printer (off for 30 seconds, then on), reseat the cartridge until it clicks into place, and gently clean the gold chip contacts with a dry cloth. If the message returns, a replacement HP 92274A will clear it.