I have an HP Officejet Pro 8620 and when printing from Ubuntu it has recently started to put out a blank page before each print job and it will no longer print duplex (both sides of the page). When printing the second page it is also upside-down from the first. The settings for duplex are set properly in the Ubuntu print settings when printing. Not seeing any errors in the OS and everything works normally from a Windows 10 PC. So far my research and troubleshooting has turned up nothing, not sure where to go from here on finding the issue.