At first I thought it was only my printer......uninstalled the drivers, reinstalled.......etc. Then I tried to print as an XPS document and I get the same error messages. Example error message from Excel is "Your file could not be printed due to an error on Microsoft XPS Document writer". If I try the printer I get the exact same message. From Firefox I get "An unknown error occurred while printing." I have searched everywhere for a solution, I even restored as far back as I could but that was only a month ago. I can print from Notepad, both on the printer and XPS Document writer, I can also print a test page and an alignment page. Any ideas?