Digital BW, The Print

Bought a 1280 2 months ago, ran 150 beautiful prints from it until a paper
feed problem developed and I sent it back last week. The replacement came
less than 24 hours later in a box labled "refurbished product". New one
printed fine for two days on a dual G4, os X running Pshop under 9.2-- then
a couple days ago I started a print, the printer put down about a one inch
strip and spit the paper out. Re-install of the EPSON driver for X, the one
for 9, and every conceivable memory and pref tweak didn't change result.
I can print from non-photoshop apps with the EPSON driver fine, and with
Pshop and the EPSON drivers fine, but not with piezo and the epson driver.
Now, to make it more puzzling, I can print from my pc laptop running pshop
6, piezo 604, and the current 1280 driver if I only print letter size.
Anything larger and same thing, a strip of ink and out goes the paper.
Two hours of long-distance tech support with epson has not given us any
resolution, just lots of wasted paper. I never mentioned running third party
inks with a chipped cis, never mentioned the piezo export plugin. Has anyone
had this problem? Has anyone ever said to epson "I don't care what the
problem is, I don't like this printer, I want a new one"?
Thanks,
Dennis Craven