Schmoe,
A few months ago I received a P800 with a dead nozzle and did a printer exchange with Epson. As I understood it, their policy is to exchange for a new machine if the problem occurs, and they are notified, within the first 30 days; after 30 days, the exchange will be for a refurb or a new printer, at Epson's discretion. So I would not delay getting the exchange set up. They will send you shipping labels and instructions on packing, and they will tell you what to do with the inks. I submitted the rebates (new purchase rebate, loyalty rebate) on the exchanged machine, not the originally purchased one; I managed to cram the original and exchange serial numbers, and the exchange number, onto the rebate forms and received the checks for both within the time window Epson specified.
Good luck,
Mark Gunion