You have run into a common problem. Which you are not to blame because you
likely lacked knowledge. Neither is trisquel. I think a lot of people here
have faced it. I write this as an explanation.
Trisquel is free software. One part is having access to the source code.
Trisquel and people here a strict on that. They will say, if your hardware
has no free software drivers then get hardware, that has. They likely will
not tell you how to get non free software on your computer in order to get a
piece of hardware working.
From trisquel's point of view, epson is the wrongdoer. If epson would make
the driver source software public, you would probably get to connect your
hardware to trisquel.
If you want to use free software, about programs and hardware you will have
to investigate your options and then choose among them available. Fx many
older hp, I do not know about the new models, printers will work with
trisquel.
Fx if you want a notebook, people here will tell you to buy a thinkpenguin
computer. If you do not want one, then it gets difficult. In advance you
cannot know if you buy a windows computer and install trisquel that the
hardware devices will work.
If you are located in the eu and buy hardware on the internet from a shop
located in the eu, by law you got 14 days to return the item and get a
refund. You pay for returning the item. You may buy a notebook. Install and
test trisquel. Preferable on an usb 3 memory flash stick. If the hardware
devices work, then keep the notebook. Likely the seller cannot tell you if
trisquel will work.
Among other brands, I was told not to get a lenovo. The lowest priced
notebook I found was a lenovo. I bought it. I installed free software debian
8. To my knowledge it works. Except the sdcard reader. Wifi works. It seems
the notebook is fast. It does not get hot. Fan runs.
If you private message supertramp83 maybe he can get your hardware to work.
If he wants to.