I bought this new WC3335 from Amazon.ca and just got it two days ago. I'm still fighting with this error code.
I loaded some letter size plain white paper, from different supplyer, I tried different paper types (plain, recycled, lightweight) by both tough pad and CentreWare Internet Service but doesn't work. But I have no problem for printing.
That fault code is a Paper Tray 1, 2, or Bypass Tray Paper Mismatch issue. I would check to make sure the paper size, type and orientation in the tray matches EXACTLY to what is showing on the print driver. Then you can try powering off and back on. Hopefully this helps resolve that fault code.