Mid-level boot key sequences
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Initialize Disks
Use this item to initialize the optional hard drive.
Access the mid-level boot key sequences
1. Turn off the device.
2. Turn the device on and immediately hold down the Start button on the control-panel keypad as
soon as the control-panel display backlight illuminates.
3. Continue to hold down the Start button until all three control-panel LEDs remain illuminated.
Release the Start button.
4. Press the 5 button to access the mid-level service mode function.
5. Press 6 to select the mid-level service mode function (Initialize Disks).
High-level boot key sequences
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Skip Disk Load
Use this item to initialize the device without accessing the hard disk.
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NVRAM Initialization
CAUTION Initializing the NVRAM resets the serial number, the event log, the page counts,
and the EIO card (initializing the NVRAM resets Service menu values to factory defaults).
Use the service menu to restore the serial number and page counts. Also reconfigure any
computers that print to this device so that the computers can recognize the device. Initialize
the NVRAM only when absolutely necessary. In most situations, use a cold reset rather than
a NVRAM initialization to reset device settings (doing so will retain the values in the
Service menu).
All HP Jetdirect settings will be lost. Be sure to print a configuration page before performing
NVRAM initialization. Make a note of the IP address on the Jetdirect page that prints with
the configuration page. You must restore the IP address after NVRAM initialization. See
Configuring and verifying an IP address on page 79.
NOTE Before performing a NVRAM initialization, print a menu map and a configuration
page. See
Use information pages on page 76. Use the information on the configuration page
to reset any customer-set device configuration. Take special note of the engine cycles
count, maintenance count, and the serial number.
If an HP LaserJet analog fax accessory 300 is installed, performing an NVRAM initialization
can cause the MFP to violate local telephone regulations. Reset the language and country/
region after performing NVRAM initialization. For more information, see the HP LaserJet
Analog Fax Accessory 300 Service Manual.
Use this item to initialize the device NVRAM. NVRAM initialization resets the following settings and
information:
●
All menu settings are reset to factory values, including the fax header and company name.
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All faxes in memory are erased.
504 Chapter 6 Troubleshooting ENWW
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