Even better, each and every particle of ink can be a network connected nano-machine, the usage of which, is available as a subscription.
If and when your subscription expires, all ink connected to your account will stop working. Ink previously used for printing, will fall off the paper.
This can be prevented, on using special HP papers, with an ink-capturing coating of nano-machines which can be separately subscribed by the owner of the product of printing.

Meaning, now you can print books with HP printers and the customers can pay you a subscription fees to keep the book alive. Alternatively, they can print on HP paper and you can pay subscription fees to HP yourself.

I call it IaaS (Information-Retention as a Service)