HP laserjet 3390, 3392 all-in-one Instruction De Maintenance
Control-panel message
Description
Recommended action
If a surge protector is being used, remove it.
Plug the all-in-one directly into the electrical
outlet. Use the power switch to turn the all-in-
one on.
Plug the all-in-one directly into the electrical
outlet. Use the power switch to turn the all-in-
one on.
57 Fan Error
The all-in-one has experienced a problem
with its internal fan.
with its internal fan.
Turn off the power by using the power switch,
wait at least 30 seconds, and then turn on the
power and wait for the all-in-one to initialize.
wait at least 30 seconds, and then turn on the
power and wait for the all-in-one to initialize.
79 Error Turn off then on
The all-in-one has experienced an internal
firmware error.
firmware error.
Turn off the power by using the power switch,
wait at least 30 seconds, and then turn on the
power and wait for the all-in-one to initialize.
wait at least 30 seconds, and then turn on the
power and wait for the all-in-one to initialize.
If you have already installed a memory DIMM
in the all-in-one, turn off the all-in-one,
remove the memory DIMM, reinstall the
DIMM to verify that it is seated properly, and
then turn on the all-in-one.
in the all-in-one, turn off the all-in-one,
remove the memory DIMM, reinstall the
DIMM to verify that it is seated properly, and
then turn on the all-in-one.
If a surge protector is being used, remove it.
Plug the all-in-one directly into the electrical
outlet. Use the power switch to turn on the all-
in-one.
Plug the all-in-one directly into the electrical
outlet. Use the power switch to turn on the all-
in-one.
Table 6-2
Critical-error messages (continued)
214
Chapter 6 Troubleshooting
ENWW