I did fill the 1800 carts via the vacuum method, tedious, as per the included instructions. I had tiny bubbles in the circular thingy and was never able to get them all out. Is that an issue? I did let them sit in the printer for 1/2 hour before printing.
Brian & tjncooke, I picked the printer up Friday evening and will lug it up to my studio today. They didn't give me a printout of the repairs, said it would be e-mailed, but he said they had replaced the print head, wiper, ink tubes(?), and maybe something else. He said I would have to create a paper profile for the thicker paper, 13mil matte Epson, from now on. I was able to print on this paper before the problem without issue. I think I'll contact Epson anyway about this and the length of time it was out. I have an open house this coming Friday & Saturday so it's good to have it back.
tjncooke, The first 3880 I bought was a refurb unit from Epson ebay and it arrived damaged. I thought for only $100 more with a rebate I would just get a new unit from B&H.
Thank you everyone for the advice and input,