HP Officejet 7500A Wide Format e-All-in-One Printer - E910a - Manual (Page 173)

Ink cartridge warranty information
The HP cartridge warranty is applicable when the product is used in its designated HP printing device.
This warranty does not cover HP ink products that have been refilled, remanufactured, refurbished,
misused, or tampered with.
During the warranty period the product is covered as long as the HP ink is not depleted and the end
of warranty date has not been reached. The end of warranty date, in YYYY/MM format, may be found
on the product as indicated:
Warranty information 169