Sometimes, instead of appearing under "Printers," the UP-D897 appears under "Unspecified" devices in the Control Panel.
To confirm the is working:
When Windows 10 was released, many legacy device drivers were rendered obsolete. Sony eventually released updated drivers, but because this printer is categorized under "Medical Systems" rather than consumer electronics, the drivers are not always featured prominently on the main Sony support landing pages. sony up-d897 driver for windows 10
This isolates the legacy driver from Windows 10 and guarantees 100% functionality. instead of appearing under "Printers
If B fails: