HP Instant Ink is a subscription service that lets you pay a monthly fee based on the number of pages you print instead of buying ink cartridges outright. It automatically monitors your printer’s ink levels and sends you new cartridges before you run out, requiring a compatible HP printer and an HP Smart account to manage the service[1][3].

To use HP Instant Ink, you must maintain an email account and an HP Smart account, managing the subscription through your online dashboard. HP is allowed to update your printer’s firmware remotely to support the service. Promotions may occur occasionally with additional terms[1].

The HP Smart app (available on desktop and mobile) supports managing your printer, including monitoring ink levels and managing your Instant Ink subscription. It also offers printing, scanning, and troubleshooting features[3][4].

However, some users have reported issues such as delayed cartridge delivery, limitations on using non-subscription cartridges, and disputes over page counting methods. For example, pages with printing errors may count against your monthly page limit, and canceling the subscription requires transitioning to buying cartridges yourself to continue printing. These concerns have led to some customer frustration and pending legal actions[2][4].

For official support, start with the HP Instant Ink website and the HP Smart app for account and service management, troubleshooting, and customer service contact options[1][3].