Installing the duplex unit

You can print on both sides of a sheet of paper automatically when the optional automatic two-sided printing accessory (duplex unit) is installed on the printer. The duplex unit comes with the HP Officejet Pro K550dtn and HP Officejet Pro K550dtwn printers. For information on using the duplex unit, see Printing on both sides (duplexing). See also Accessories for ordering information.

To install a duplex unit

1.Push the buttons on the rear access panel and remove the panel from the printer.

2.Slide the duplex unit into the printer until the unit locks into place. Do not press the buttons on either side of the duplex unit when installing the unit; use them only for removing the unit from the printer.

10 Chapter 2 Installing the accessories

ENWW