Are you sure the paper size was set to 13x19 (Super A3/B 329mx483mm)?
I've had the 1280 freeze before but it's never spit the print out...Mine was caused by a slow System (for USB anyways). I took off the Epson Status Monitor and I haven't had a problem since. Not sure why this worked though.
Now, I just can't tell how much ink is left until it runs out.
...update: Now it's happening to me. I just installed Epson Status monitor 3 (to check my ink levels) and it happened about 1/4 of the way through a 5x7 print - twice!!!
I've contacted Epson Tech support and am awaiting a response.
After removing Status monitor, the same thing is still happening. The print preview is showing the whole image but only part is being printed.
Tried going back to Photoshop 6, was trying out photoshop 7, and the image prints out completely.
Anybody else having problems with PS 7 and the 1280?