The packaging materials used to protect ink cartridges enable a shelf life of at least 18 months past the manufacturing and shipping dates. Not all HP printers have expiration dates on ink cartridges.

You should be able to find third-party ink for your HP printer. (Hewlett Packard) ... It sells ink cartridges for many HP printers, and Smart Ink says its cartridges provide 100% chip recognition.

Hewlett-Packard has prompted an onslaught of complaints after disabling printers of customers who try to use ink from rival companies. HP has released a new ‘firmware’ update which blocks customers ...

Hewlett-Packard, or HP, have disabled the printers of customers who used ink cartridges from cheaper rival companies. This sparked an outrage after they issued a 'firmware' update blocking ...

He says if this doesn’t fix it, the problem is with the ink cartridges, not the printer. I am skeptical. I turn the printer back on. John asks me to print a test page. IT WORKS!