HP LaserJet P4015 Printer series - Manual (Page 154)

Restore factory settings
Use the RESETS menu to restore factory settings.
1. Press Menu .
2. Press the down arrow to highlight CONFIGURE DEVICE, and then press OK .
3. Press the down arrow to highlight RESETS, and then press OK .
4. Press the down arrow to highlight RESTORE FACTORY SETTINGS, and then press OK to reset
the product to the original factory settings.
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