HP LaserJet Pro 400 color Printer M451 series - Manual (Page 157)

Restore factory settings
Restoring the factory-set defaults returns all of the product and network settings to the factory
defaults. It will not reset the page count, tray size, or language. To restore the product to the factory-
default settings, follow these steps.
CAUTION: Restoring the factory-set defaults returns all of the settings to the factory defaults, and it
also deletes any pages that are stored in the memory. The procedure then automatically restarts the
product.
1. At the control panel, press the OK button to open the menus.
2. Open the following menus:
● Service
● Restore Defaults
The product automatically restarts.
ENWW Restore factory settings 139