Antonio, don't despair. Once you get these settings figured out, you will be good to go with gazillions of prints, and your biggest complaint will then be having to buy replacement ink cartridges. I use the R3000, but do it with a PC, so my software may look a little different. But I think I can point you to settings that will get you going. The paper you have chosen is a lovely paper, with a finish that calls for a photo (not matte) black ink. In file names you will often see photo black ink designated with "PK". (The "K" stands for black.) When the printing software page calls for media type, (at least for Photoshop) you will always need to choose the Epson paper with similar characteristics. In your case, Hahnemuehle has based their profile for your paper on Epson's Ultra Premium Photo Paper Luster, so that is what you should choose in that box. And that choice will tell your printer that it will be using PK ink. Don't even think about choosing a matte paper (not Epson Enhanced Matte, for example) for any of the "gloss" papers such as you are using, and not for printing B&W either.
To help you, let's go back to the initial screen I expect you are seeing when you start the print process. I think I have a "document" box checked under Color Management. Then, for color handling, you will say to have Photoshop manage colors. I get a yellow exclamation point at that part of the screen, warning me to disable printer color management. You will do this later when you are in print settings, and choose a "No color adjustment" setting; that is because you have already said you want Photoshop to manage colors. You will put in your printer profile (the ICC profile) which I assume you got from the Hahnemuehle web site. I find these manufacturer web sites sometimes (often) confusing to navigate, and I will later tell you how to navigate this one for the information you want. I choose relative colorimetric for my rendering intent. Some would suggest "perceptual" instead. Just go ahead and choose one, and check "black point compensation." There are technical answers to these two choices which you can worry about later. Choosing one or the other won't make a real difference unless you have colors that are pushing the gamut your printer is capable of.
Choose to center your image, unless you don't want to, and my boundary box is checked (whatever that means!).
Then you will be choosing print settings, with even more choices. Photo Black Ink. Ultra Premium Photo Paper Luster under photo inks. Color (choose B&W here when you are doing B&W). Under quality options, I choose the maximum quality options available. In my drop-down box, the bottom choice is again "quality options" and I choose Super Photo with microweave on, High Speed un-checked, also Edge Smoothing un-checked. In the paper configuration box, I increase color density to between 6 & 10 for my paper (Canson Platine, 310g. This increases the ink that is laid down, and you may want to start without increasing it. I increase my drying time to the same number I use for the increased ink lay-down, so that as I increase the amount of wet, I am also increasing the drying time. My paper is 310g while yours is 315, so I would start with the settings I use for Paper thickness: 4, and Platen Gap: wide. Your "mode" at this point is "OFF (no color adjustment)" because you have already opted for Photoshop to manage colors. If you don't use "Off" here, you will get double color management, with typically disastrous (often purple) results. Show "sheet" as your source (assuming cut sheet), and set the size of your paper. Early on, you should also have set the orientation, either vertical or horizontal. When you see the image of your print size on your selected paper size, you will know if you haven't set this one right.
I'm going to such lengths because this stuff bedeviled me early on too. And printing is so much fun when you get these settings down pat that it is a shame to have to struggle with it. Now, I said I would suggest how to navigate the Hahnemuehle site, which may help you. Go to www.hahnemuehle.com
. Under Digital Fine Art, choose ICC profiles. Then choose Epson, then choose your printer, the R3000. I forget whether you choose your specific paper here or not. Certainly, you have to choose it to download the actual profile. And if Photoshop is open when you download the profile, you should restart it after installing the profile, so Photoshop can read it as it opens. Choose "Handling Instructions PK, EN". That will give you instructions for PK ink, in English. In the upper right hand corner of your screen, choose to generate the zip file. Then choose to download the zip fule. Then, they will give you a choice to OPEN or Download. If you just want to read it, choose Open. If you scroll down a bit on the document, you will see a screen shot of some of the settings we've talked about, but for the FineArtPearl paper. That is fine. All the settings will be the same except for the actual ICC profile.
Good luck. Several readers helped me on this forum today, and I hope this has helped you. --Barbara