After pouring through the archives and learning everything I can about techniques (overwhelming!) I decided to go for it today and start printing canvas on my Epson 3880.
Previous tests on 8.5x11 with various leaders and backing were getting frustrating so I was hoping to figure out the technique for feeding the sheet alone through back feeder. From everything I read and watched, it looked like standing behind the printer while feeding was going to be the key to making this work.
Purpose was to create 13x19 gallery wraps, so I was printing 17x24 sheets cut from a roll. I used a rotary cutter and was able to get nice square edges. Canvas is Hahnemühle Monet and I'm printing from Lightroom (only giving the print command after loading a piece of canvas of course).
Standing behind the printer, I placed the leading edge of the canvas into the rear single sheet feeder. Once I got close to the point where it starts to grab and pull the sheet in, I spread all my fingers across the canvas and pushed as close to the rollers as possible with even pressure. After a couple try's, I got a feeling for timing the pause when it is about to pull the sheet and then applied stronger pressure at the moment it began pulling. The key seems to be if strong pressure is on the canvas at that first instant it starts to pull, it will grab without a problem. First attempts took maybe 3 tries before getting an acceptable feed (either didn't grab or "skewed" error on display), but by second and third canvas printed I got it down and pretty much get a good feed every time now.
Not sure if the larger canvas made the difference (more rollers grabbing?) or if the stiffer Monet is the key, but sure happy to be getting canvas prints without a hassle. And of course the prints from this printer on the canvas are stunning!
Hope someone finds this helpful.