HP Instant Ink support requires having an HP Smart Account and a compatible HP printer connected to the service. Customers manage their service and payments through the HP Instant Ink dashboard accessed via their HP Smart account. HP remotely updates printer software or firmware as needed to maintain the service, and users must have an active email account to receive notices and information from Instant Ink[1]. For detailed support or specific issues, customers typically start by visiting the HP Instant Ink website, logging into their account, or checking FAQs related to service availability and printer compatibility[1].