434 Troubleshooting ENWW
Engine resets
Cold reset
A cold reset unlocks menus that have been locked and resets variables in the control panel.
However, it does not clear the values in the Service menu (such as the serial number and page
counts).
To perform a cold reset
1 Turn the printer on.
2 As the printer performs its power-on sequence, press and hold until all three lights on the
control panel are lit.
3 When SELECT LANGUAGE appears on the display, press until COLD RESET appears on
the display.
4 Press . The printer will perform a cold reset and then continue its power-on sequence.
NVRAM initialization
CAUTION Initializing NVRAM will reset the serial number, the event log, the page counts, the calibration
settings, and the EIO card (HP 3700 only). Use the Service menu to restore the serial number and
page counts. You will also need to reconfigure any computers that print to this printer to recognize
the printer. Initialize NVRAM only when absolutely necessary. In most situations, use a Cold reset
to reset printer variables but still retain the needed values in the Service menu.
Before initializing NVRAM, print a configuration page and a supplies status page or go to the
service menu to gather the following information:
● total page count and color page count
● fuser kit count
● serial number
To initialize NVRAM
1 Turn the printer on and watch the control panel display.
2 When the display begins showing the memory count, press and hold until all three lights on
the control panel are lit.
3 Press .
4 Press M
ENU. The display should show SKIP DISK LOAD.
5 Press until NVRAM INIT is highlighted.
6 Press . The printer will initialize NVRAM and then continue its power-on sequence.
To Next Page
Loading...
