This document is for HP LaserJet M1120 and M1120n Multifunction printers.
After you turn on the printer, a Supply Memory Error message displays on the printer control panel. The toner cartridge has an e-label error or a missing e-label, and the toner cartridge might not have full contact with the printer. To resolve the issue, remove and reinsert the toner cartridge, turn the printer off and on again, or replace the toner cartridge.