You don't know how glad I was to find this post of your's, as I recently got the R3000, and am wanting to use Canson's Baryta Photographique paper for my clients prints.
When I got the R3000, I also ordered multiple paper sample packs to find the paper I liked and wanted to use. I used Canson, Hahnemühle, Epson's own papers, and Museo. The two winners were Canson's Baryta Photographique, and Hahnemühle's Fine Art Baryta. Because of the feel of Canson's Baryta, how it feels coated and smooth on both front and back, I am wanting to use that for my client's Portraiture Print orders, whereas Hahnemühle's Baryta back just feels like heavy paper stock in the hand... and since client's prints will be handled more by them, handing them out, showing, etc., why I prefer Canson's. And will just leave Hahnemühle's for my Fine Art Prints that will just be hung and never handled, and most likely matted anyway prior to them getting them. I also think Hahnemühle's Baryta is a little too textured than I like for client's prints, but is perfectly acceptable for hanging only purposes.
So, ordered a box of Canson's Baryta Photographique at 13" x 19", got it yesterday, and did some prints today, and very disappointingly and frustratingly got exactly what you described, the printer heads scraping the tops of the paper!
First print (I was printing two different 8" images on the paper, one on top, one on the bottom), it started 2 7/8" down from the leading edge, about 5 3/4" in and continues for an 1 3/8", then nothing, but then got two more, starting again 10 7/8" down, 4" in and 6 3/4" in, and both continue for about an inch and half, and 2 inches, respectively.
I did the same thing and went in and increased the Platen Gap from 'Standard' to 'Wide', that helped a bit, it removed it completely from the top, but the two remained on the bottom.
So, went back again and increased the Paper Depth, to from '3' to '4', and since I am wasting paper here, since I got a non-scraped image this time on the top image, I moved the bottom image to the top position, and added a couple smaller images to the bottom... the bottom images printed perfectly fine... but the same two scrape marks on the top image, in the same positions within the image.
I contacted Epson, and they just told me it must be the paper. Great, gee thanks.
I will go at it again tomorrow, and try moving the depth up to '5', and hopefully I get the unproblematic results that Canson says they received at that setting, even though you said it never did for you... that really disappoints me, as well as you having completely dumped Canson and went with Hahnemühle's... I don't want to use Hahnemühle for my clients for the reason I cited, I just don't like the feel of the paper in my hand compared to Canson's, as well as the texture compared to Canson's smoother finish.
Nobody replied to Mark's post, has no one else encountered any issues with this printer / paper combination? I know from watching the Camera to Print to Screen tutorials, that Mr. Reichmann likes also Canson' Baryta Photographique, and in the video, he sets up and uses the R3000, I wonder if he has encountered any issues with the two... sir, if you ever frequent these posts, I would certainly love to learn! :-) I want to use this paper!
Thanks for any help, or suggestions someone may offer.
All the best to you,