I'm wondering if anyone can help. I cannot get my HP Deskjet 2542 to scan using my 2012 Imac. I was able to do a workaround a few months ago when I had to scan a lot of documents to buy our new house. But now, it's utterly impossible. I've reinstalled drivers a few times and done all the "solutions" I could find, but it still won't scan. I finally upgraded from Mavericks (it wasn't working with Mavericks, so this was my last resort) to Yosemite today, in hopes it would work, but still, the same problem. What can I do? This printer/scanner is only about 6 months old, and goodness knows where the receipt even is.