I (or some small child in my household) broke the screen on my iPad, which is what I normally use for reading scientific papers. I print a few but don't like doing that for the vast majority of papers; most just aren't worth the waste of paper and ink. The iPad was satisfactory.
I cannot stand reading them on my 1440p desktop monitor. I cannot stand reading them on my 2017 Macbook Pro. So now I am looking to replace my iPad for the majority of my paper reading.
What do you use for reading sci/tech papers?
Some notes on using Dead Tree™. Depending on the font size, I print 2-4 pages per side. Be choosy on what to print, for lots of publications you can skip irrelevant chapters.
Finally, the A series of Dead Tree™ is much superior to the standard US letter size.