Hello—we have a P-800 at our college, as well as two 3800’s, one 3880, and one 9890. I have used only OEM ink so far in all, but use IJM carts with PiezoFlush to clean all but the P-800 out, and for extended periods of storage. I realize now (but not when I bought it) that the P-800 has so far proven impervious to the use of any non-epson cart, so I can’t continue this maintenance routine on it.
We have only 4 months of use on the P800 so far, and it seems reliable—no propensity to clog, unlike the 4900 we gave up on. We operate at temps from 66 to over 80˚, and whatever humidity southern Vermont wants to treat us with. I remove and shake carts every 1-2 weeks. During term-time, the machines are “on” about 15 hours/day, with varying amounts of use.
What have other users experienced with a P-800? I hope a few IJM fans & customers exist that have P-800’s…If I had known about Epson’s hard-ball tactics, I would have bought a refurb’ed 3880. Our existing one has been very reliable and trouble-free.