HP Color LaserJet CM2320 Serie Referenzhandbuch Seite 5

Make two-sided copies from two-sided documents
1 Load the first page of the document to be copied face-down
onto the flatbed scanner, and then close the scanner lid.
2 Press Start Copy Black or
control panel to start copying.
3 Flip the page on the scanner to the second side, and then close
the scanner lid.
English
Start Copy Color on the product