HP LaserJet Pro M521 Multifunction Printer series - Manual (Page 67)

Manually print on both sides (Windows)
For paper sizes and types that the automatic duplexer does not support, use manual duplex printing. To
use this option, the product must be configured to enable manual duplexing. The first five steps of the
following task need to be performed only one time. After that, you can manually print on both sides by
starting with step 6.
1. Windows XP, Windows Server 2003,
and Windows Server 2008 (using the
default Start menu view): Click Start,
and then click Printers and Faxes.
Windows XP, Windows Server 2003,
and Windows Server 2008 (using the
Classic Start menu view): Click Start,
click Settings, and then click Printers.
Windows Vista: Click the Windows icon in
the lower-left corner of the screen, click
Control Panel, and then click Printers.
Windows 7: Click the Windows icon in the
lower-left corner of the screen, and then click
Devices and Printers.
2. Right-click the print-driver icon, and then select
Printer properties.
3. Click the Device Settings tab.
4. Expand the list of Installable options, and
in the drop-down list next to Allow Manual
Duplexing: select Enabled.
5. Click the OK button.
ENWW Print tasks (Windows) 53