HP LaserJet Pro MFP M127fw - Manual (Page 30)

6. Retrieve the printed stack from the output bin,
and place it with the printed-side facing down,
top edge first in the input tray.
7. At the computer, click or tap the OK button to
print the second side of the job.
8. If prompted, touch or press the appropriate
control panel button to continue.
22 Chapter 3 Print ENWW