Paper isn't required due to the cost of ink
No, really. I bought a new HP Deskjet only a year ago. One official HP cartridge for it yields less than 200 pages of A4.
I have a pack of 500 sheets of A4 paper that I bought from Tesco for about 3 quid. I don't think I'll be running out *paper* any time soon since I can't really afford to print stuff due to the cost of the ink...
In fact I'd go as far to say that the paper I have bought will outlast the printer.