Some HP printheads and ink cartridges come in packaging that is marked with an “install-by” date. Install-by dates are being removed from HP packaging, however, to avoid confusion with the more important 'Warranty Ends' date. Here are some facts about date markings on HP ink supply products:
HP printheads and ink cartridges can be installed after the install-by date. The Warranty Ends date, which is marked on all HP ink supplies products, indicates the period during which the product is warranted to be free from defects. On packaging that is marked with both an Install-by and a Warranty Ends date, the Warranty Ends date is always 6 to 12 months after the Install-by date. The Warranty Ends date will continue to appear on all HP ink supplies products, but Install-by dates are being removed. For further information please visit this link:
https://support.hp.com/us-en/document/c01770210#:~:text=The%20Warranty%20Ends%20date%2C%20which,after%20the%20install%2Dby%20date.
Answered by: HP Team Grant
Date published: 2023-05-17