HP Officejet Pro K550 Printer - Manual (Page 32)

Printing on both sides (duplexing)
You can print on both sides of a sheet of media, either automatically by using the optional automatic
two-sided printing accessory (duplex unit), or manually by turning the media over and feeding it into
the printer again.
Guidelines for printing on both sides of a page
● Always use media that conforms to the printer specifications. See Understanding specifications
for supported media .
● Specify duplex options in your application or in the printer driver.
● Do not print on both sides of transparencies, envelopes, photo paper, glossy media, or paper
lighter than 16 lb bond (60 g/m
2 ) or heavier than 28 lb bond (105 g/m 2 ). Jams might occur with
these media types.
● Several kinds of media require a specific orientation when you print on both sides of a page,
such as letterhead, preprinted paper, and paper with watermarks and prepunched holes. When
you print from a computer running Windows, the printer prints the first side of the media first.
When you print from a computer using the Mac OS, the printer prints the second side first. Load
the media with the front side facing down.
● For auto-duplexing, when printing finishes on one side of the media, the printer holds the media
and pauses while the ink dries. Once the ink dries, the media is pulled back into the printer and
the second side is printed. When printing is complete, the media is dropped onto the output tray.
Do not grab it before printing is complete.
● You can print on both sides of supported custom-sized media by using the printer's manual
duplex capabilities. For a list of supported custom-sized media, see
Understanding specifications
for supported media .
To perform duplexing (Windows)
1. Load the appropriate media. See Guidelines for printing on both sides of a page and Loading
media .
2. For auto-duplexing, make sure the duplex unit is properly installed. See Installing the duplex unit .
3. With a document open, click Print on the File menu, and then click Setup, Properties, or
Preferences.
4. Click the Finishing tab.
5. Select the Print on Both Sides check box. For auto-duplexing, ensure that Use Auto-Duplex
Unit is selected.
NOTE If Use Auto-Duplex Unit is not available, click the Effects tab, and ensure that
Minimize Margins is cleared.
6. To automatically resize each page to match the document's onscreen layout, ensure Preserve
Layout is selected. Clearing this option may result in unwanted page breaks.
24 Chapter 3 Using the printer ENWW