HP (Hewlett-Packard) LJ 4000T Printer User Manual


 
96 Chapter 2 Service mode EN
Resetting the printer
Cold reset/EIO card reset
Note
This feature sets all system parameters to the factory defaults.
To perform a cold reset:
1 Turn the printer off.
2 Press and hold G
O.
3 Turn the printer back on, and continue to hold G
O until the Attention
light turns on.
4 Release G
O.
The device lights begin cycling from front to rear. The cold-reset
process runs until completion, when the device is in the Ready
state.
NVRAM initialization
This feature re initializes NVRAM and sets all system parameters to the
factory defaults. During the NVRAM initialization process, all button
presses are ignored.
To perform an NVRAM initialization:
1 Turn the printer off.
2 Press and hold G
O.
3 Turn the printer back on, and continue to hold G
O until the Attention,
Ready, and Go lights turn on.
4 Release G
O.
The device lights begin cycling from front to rear. The NVRAM
initialization runs until completion, when the device is in the Ready
state.