Service Manual
Page 418
... mailbox, and optional input trays. 3 Consumables: % of life remaining-shows the percentage of the maximum rated life remaining for the transfer kit, fuser kit, and drum kit. For HP Color LaserJet 8550 printer models (except for the MFP model), estimates of the amount of toner remaining in each of the four cartridges are also shown. 4 Memory-shows the total...
... mailbox, and optional input trays. 3 Consumables: % of life remaining-shows the percentage of the maximum rated life remaining for the transfer kit, fuser kit, and drum kit. For HP Color LaserJet 8550 printer models (except for the MFP model), estimates of the amount of toner remaining in each of the four cartridges are also shown. 4 Memory-shows the total...