HP Color LaserJet Pro MFP M181
Service Mode. Printer resets. NVRAM initialization
NVRAM initialization
CAUTION:
Be sure to print a configuration report before performing an NVRAM initialization.
An NVRAM initialization erases all data stored in the unprotected NVRAM sections. Performing an NVRAM initialization resets the following settings and information:
- All menu settings are reset to factory default values.
- All localization settings, including language and country/region, are reset.
After performing an NVRAM initialization, reconfigure any computers that print to this printer so that the computers can recognize the printer.
- Turn the printer off.
- Perform one of the following steps:
2-line control panels:
Select and hold the right-arrow ► and the Cancel ✖ buttons simultaneously. Keep them depressed as you turn the printer on.
Touchscreen control panels:
Turn the printer on, and then, as soon as the HP logo appears, press and hold the lower right quadrant of the control panel.
M153-M154 LED control panels:
Select and hold the Resume button. Keep it depressed as you turn the printer on and hold it for 20 seconds.
M178-M181 LED control panels:
Select and hold the up arrow ▲ and the Cancel ✖ buttons simultaneously. Keep them depressed as you turn the printer on.
NOTE: It takes about 45 seconds before the NVRAM initialization process begins. - Perform one of the following steps:
2-line control panels:
When the Permanent Storage Init. message appears on the display, release the right-arrow ► and the Cancel ✖ buttons
Touchscreen control panels:
When the Permanent Storage Init. message appears on the display, release the touchscreen.
M153-M154 LED control panels:
When the Ready LED turns on, release the Resume button.
M178-M181 LED control panels:
When the Ready LED turns on, release the up arrow ▲ and the Cancel ✖ buttons. - The NVRAM initialization starts.
- When the printer has finished the NVRAM initialization, it returns to the Ready state.
Super NVRAM initialization
A super NVRAM initialization restores the printer to the “generic printer mode” in which it arrived from the factory. This means that you will have to reset the language and country/region settings when the printer starts after the initialization. A super NVRAM initialization erases all data stored in the protected and unprotected NVRAM sections.
- Turn the printer off.
- Perform one of the following steps:
2-line control panels:
Select and hold the left-arrow ◄ and the Cancel ✖ simultaneously. Keep them depressed as you turn the printer on.
Touchscreen control panels:
Turn the printer on, and then, as soon as the HP logo appears, press and hold the lower left quadrant of the control panel.
M153-M154 LED control panels:
Select and hold the Resume button. Keep it depressed as you turn the printer on and hold it for 40 seconds.
M178-M181 LED control panels:
Select and hold the down ▼ arrow and the Cancel ✖ buttons simultaneously. Keep them depressed as you turn the printer on.
NOTE: It takes about 45 seconds before the super NVRAM initialization process begins. - Perform one of the following steps:
2-line control panels:
When the Permanent Storage Init. message appears on the display, release the left-arrow ◄ and the Cancel ✖ buttons.
Touchscreen control panels:
When the Permanent Storage Init. message appears on the display, release the touchscreen.
M153-M154 LED control panels:
When the Attention LED turns on, release the Resume button.
M178-M181 LED control panels:
When the Attention LED turns on, release the down arrow ▼ and the Cancel ✖ buttons. - The super NVRAM initialization starts.
- When the super NVRAM initialization completes, the printer enters the generic printer mode.