HP Officejet Pro K850dn Printer - Manual (Page 80)

Testing the paper feed
If you encounter frequent jams, perform a paper feed test to ensure that the paper path of the tray or
duplex unit is clear. The process will feed 20 blank pages.
● Printer driver
Click the Services tab, click Service this device, and then follow the onscreen instructions.
● Toolbox (Windows)
Click the Printer Services tab, click Test Paper Feed, and then follow the onscreen instructions.
● HP Printer Utility (Mac OS)
Open Information And Support, click Test Paper Feed, and then follow the onscreen
instructions.
72 Chapter 5 Maintaining and troubleshooting ENWW