In your case, you still have seven other ink channels in the 3880. As long as they are printing perfectly, there is no reason why the printer can not be used as a Piezography printer. You could run it as a K7 printer and run matte only. Or you could run it as a baryta/glossy only printer. You would not have enough ink channels to do both at the same time.
You could still lose another channel and we could map it for K6. You can lose up to three channels and run the digital negative system. And finally when all else is lost and you have 4 or fewer channels remaining - we can turn it into a gloss overprint printer and you can buy another Epson...
We are turning a lot of discarded printers into useful b&w printers. It's almost at the point now where you can get a 7900 or a 9900 for absolutely free from very frustrated post-Epson users.
You only need 5 channels for dig neg.
You need a minimum of 6 channels for Piezography matte
best,
Jon Cone
Piezography