HP LaserJet Pro MFP M429fdw
Service mode. Service menu
The Service menu is used to adjust print settings, restore factory default settings, and clean the print paper path.
2-line control panels
- From the printer control panel, press the [return] button once, then press the [cancel], and then press the [return] button twice to gain access to the Service menu.
- Open the Service menu.
Touchscreen control panels
- From the Home screen on the printer control panel, press [Home] button once, then press the [Return] once, and then press the [Home] twice to gain access to the Service menu.
- Touch the Service menu.