How to override expiration date on ink hp l7580

SOURCE: officejet d135 - "Supply Expired" error message

HP, in order to sell more ink, monitors the expiration date of the cartridges installed. Solution is either to buy a new unexpired cartridge from HP or to disable the date monitoring built in to the printer. This latter is done by removing the button cell located inside the D135 printer on the left hand side or by simply slipping a thin piece of plastic between button cell and metal contact. You will no longer have date function on printer, but it won't object to expired cartridges either.

SOURCE: 8250 HP INK EXPIRED MESSAGE

I had same problem, and i solved it.
I opened my hp 8250 and removed it`s battery. It is located on left side of the printer, on the main board. You need to remove plastic covers , and then remove 3 screws holding board. You can move board just enough to get damn battery out of there. Now it works perfect!
I can send you some piccs if you need help.
Regards
Sasa

SOURCE: Keeps stating ink expired

i guess your printer has reach the printing warranty.. try to search in the web on how to reset your printer, ^^

SOURCE: Expire dates on ink cartridge

I've found a site that has the photos for disassembly!

http://hpphotosmart8250.blogspot.com/

Regards,
Louis

SOURCE: how to reconfigure ink cartridge

Change your system date to backward and you can use it again