I have just received several boxes of 17 x 22 Cone Type 2 310 gsm paper. I have had great difficulty getting it to load into either of my Epson 3880 printers. When one sheet did load, the print posterized in the shadows. Previously, I printed the same image file on Cone Type 2 240 gsm paper and the final print was near perfect. I have tried serval different settings in the Epson menu with no resolution. Any hints or tricks.