Since I upgraded a few days ago, I can't print anything on (any) of my printers. I have my Epson 3800 connected via Ethernet. The computer communicates with the printer (maintenance, head cleaning, ink levels), but when I send a print job, the printer icon briefly appears on the doc and then disappears. If you click on it, it has a message "looking for printer" and then it disappears. Even when I try to print from LR5, it still doesn't work. I installed the latest Epson driver with no success.
When I boot from a backup drive, and I can print fine.
I am on a Mac 10.8.5.