User Guide

NVRAM initialization
CAUTION Initializing the NVRAM resets the serial number, the event log, the page counts,
the EIO card, and the embedded print server. Initializing the NVRAM also 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 printer so that the computers can
recognize the printer. Initialize the NVRAM only when absolutely necessary. In most
situations, use a cold reset rather than a NVRAM initialization to reset printer settings (this will
retain the values in the service menu).
NOTE Before performing a NVRAM initialization, print a menu map and a configuration page
(see
Menu map and Configuration page). Use the information on the configuration page to
reset any customer-set printer configuration values that the NVRAM initialization procedure
changes. Make note of the total page count, maintenance count, and the serial number.
To initialize NVRAM
1 Turn the printer power off.
2 Remove any installed accessories (for example, a stapler/stacker).
3
For HP Laserjet 4200/4300 Series printers: Hold down
( S ELECT button), and then turn the
printer power on.
For HP Laserjet 4250/4350 Series printers: Turn the printer power on, and then hold down
(S ELECT button) when the memory count begins.
4
Continue holding down
until all three printer control-panel lights flash once and then remain
on. This might take up to 10 seconds.
5
Press
( U P A RROW button).
6 Press the P
AUSE /R ESUME button (LJ 4200/4300) or the M ENU button (LJ 4250/4350). The display
should show SKIP DISK LOAD.
7
Press
until NVRAM INIT is highlighted.
8
Press
. The printer initializes NVRAM and then continues its power-on sequence.
326 7 Troubleshooting