Same issue for me on several laptops running windows seven pro 64 bit.
Sometimes sending documents to the printer from Office applications of Acrobat reader the system crashes.
I need to disconnect and riconnect the user session in order to print again.
Very annoying.
I'm using the last printer firmware and the last driver.
Computers running 32 bit version of the operating systems don't have this issue.
Is there a way to fix this issue?
Thank you