HP Officejet 150 Mobile All-in-One Printer - L511a - Manual (Page 94)

Media is jammed in the scanner
a.
Lift the latch to release the scanner glass.
b. Gently pull the media from behind the control panel, up and away from the
printer.
c. After all jammed media is removed from the scanner, gently lift the scanner
glass until it snaps into place.
Chapter 6
90 Solve a problem