HP LaserJet Enterprise M4555 MFP Series - Software Technical Reference
Duplex Mode
In the Printer Settings section, click the Duplex Mode icon to open the Duplex Mode screen.
Figure 5-21 Duplex Mode screen
Use the Enable Duplex Mode option to print pages on both sides of the page.
1. Click the Enable Duplex Mode check box. This box is clear by default.
2. Click the Apply Now button to enable printing on both sides of the page.
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