HP LaserJet Enterprise MFP M634, M635, M636 - Installation Guide

The high-speed USB port is disabled by default and must be

enabled from the printer control panel. Open the Settings menu,

and then select General > Enable Device USB > Enabled.

Windows: Do not connect the USB cable until prompted during

the software installation in the next step. If the network cable was

connected in step 7, proceed to step 11.

Mac: Connect the USB cable now.

NOTE: The cables are not included with the printer.