Having investigated the variety of options over the last few days, here is want I've decided to do.
I looked into getting the part (ink supply system) and found several possible suppliers with pricing around $145.00 and with shipping would total about $200. Looking at the service the manual repair looks straight forward and doable but I have decided I cannot find justification with putting more money into a 5 year old printer.
I was already beginning to think about moving to the P800 even before this failure so that is want I have decided to do. I found the printer for $1149 and with the $300 of Epson rebates the net cost will be $849. I will continue to use the 3880 for Matte printing until my full set of ink runs out and then dispose of the 3880 at that time.
Best of luck to all having similar issues and decisions to make.
Roy
You can get the part shipped from China for about $145, but I understand being hesitant to undertake the investment in an old printer. When you get ready to dispose of it, offer it here instead of trashing it. So far the P800 ink chips haven't been broken so the 3880 may be the last 17" Epson that you can print Piezography on.
I really like my P800, especially the new black inks. I do not like its new paper path. Instead of using the rear feed you need to use the front feed for thicker media. I've had it mangle a few sheets, whereas the 3880 never did that even when it didn't feed straight. I've printed fewer than 25 sheets with the front feed and I've had it destroy two of them (one was a sheet cut from a roll, so not perfectly flat and I'll take the blame for that one). That could get expensive. It's also much slower. I'd say it's a poor trade off for the ability run roll paper with no cutter.