[villagetinker]

WOW! Try Goggling your printer and see if there is a factory reset. Sometimes there is a hidden button or a combination of buttons at power on that will reset the printer. I cannot believe they would shut down your printer. Thanks for the warning, looks like HP will be off my list for a replacement printer.
If this is a new purchase, and HP is resistant to turn it back on, check with your credit company and dispute the purchase. If the "remote turn off" was not called out in the instant ink plan, then a call to the FL Attorney General may be in order as HP is depriving you of a service (your printer) that you paid for.