The printer can automatically print on both sides of a sheet of paper when the auto-duplex unit
is attached to the back of the printer.
For instructions on installing and using the auto-duplex unit, see
“Using the auto-duplex unit”
“Printing on both sides (duplexing)”
– Push these buttons in to remove the auto-duplex unit from the printer.
– Remove this cover to clear any jammed paper from the auto-duplex unit.
Rear cover release buttons
The auto-duplex unit is a standard part in the hp deskjet 9670. It may be purchased separately
in some countries/regions (see
“HP supplies and accessories”