HP LaserJet P4015 Printer series - Manual (Page 186)

11. Turn the product on.
12. If a jam message persists, a sheet is still jammed in the product. Look for the jam in another location.
See
Jam locations on page 161 .
After clearing all jams, you need to send the print job again because the product power has been turned
off.
174 Chapter 10 Solve problems ENWW