HP LaserJet Enterprise 700 color MFP M775 series - Manual (Page 114)

5. In the Booklet layout drop-down list, click
the Left binding or Right binding option.
The Pages per sheet option automatically
changes to 2 pages per sheet.
Click the OK button to close the Document
Properties dialog box.
6. In the Print dialog box, click the OK button to
print the job.
100 Chapter 5 Print ENWW