This product is warranted to be free from defects in materials and workmanship during the period of the warranty. If the product is defective, contact HP (or your retailer) before the end of warranty date.
HP 84 ink cartridges are warranted until the original ink is depleted or the “end of warranty” day has been reached whichever comes first.
HP 84 printheads have a limited warranty. It will perform to specifications until the “end of warranty” date marked on the printhead or when 200 ml of ink have passed through the printheads.
The end of warranty date appears on both the cartridge and the printhead (see Figure 1 below) in a year, month, day format (YYYY/MM/DD).
FIGURE 0: “End of warranty” stamped on the cartridge and printhead
A. Location of end of warranty marking on the HP 84 ink cartridge.
B. Location of end of warranty marking on the HP 84 printhead.
Warranty does not cover empty or refilled products, printer expired products, or products that have been misused or tampered with.
For complete warranty information, refer to the document titled "HP Ink Cartridges and Printheads - Limited Warranty for HP 84 Cartridges and Printheads."