I am currently researching printing costs for assorted sizes. It is easy enough for the paper products, but I am having problems finding results for ink costs. I am looking at purchasing either an Epson 7800 or 9800.

I recall seeing a reference made by Michael to ink costs per square inch for the 7800 but I noticed his calculations were based on a 52 square inch print. This has me a little confused as I can not find a standard size that will give me final number. Any help will be greatly appreciated.