"Without any license or any payment to authors or publishers, [Internet Archive] scans print books"
That's a lie, unless they are alleging that those print books were stolen, they were bought and paid for. That is how print books work, for the most part?
That is not how digital lending libraries work. You must only lend out the number of copies you own. Similarly, you can’t buy a movie and set up a free streaming site. IA has no legal leg to stand on