Don and his brother have the same printer and Don has non stop driver issues with it. HP has given him another model, but he's learned that Windows update may be at fault for corrupted drivers for a wide variety of printers. Leo's never heard it and doesn't buy it. In fact, HP hasn't been a great printer company for a long time. It's possible that drivers could have gotten screwed up, but it's very common for companies to pass the buck and blame someone else for their problems.
Leo also thinks that Don's problem is that the print spool file is getting corrupted in Windows and that's fairly common with older versions of Windows. He recommends upgrading to a newer version of Windows. That usually solves the issue.