> Question: for Epson Artisan 810, what is the tray type? > 1 or 2? Where might I go to find that out? Almost-certainly it's type 2. Type 1 dimensions appear to be for older wide carriage printers, and my R1800 uses the same tray as my R800. CUPS prints to CD/DVD fine on both, connected to a DLink DPR-1260 print server here, by the way.