HP LaserJet 3055 - Manual (Page 349)

Control panel message Description Recommended action
55.1 Error The all-in-one has experienced an internal
hardware 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.
If a surge protector is being used, remove
it. Plug the all-in-one directly into the wall
socket. Use the power switch to turn the all-
in-one on.
If the error persists, contact HP Customer
Care. See
HP Customer Care or the
support flyer that came in the all-in-one box.
57 Fan Error The all-in-one has experienced a problem
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.
If the error persists, contact HP Customer
Care. See
HP Customer Care or the
support flyer that came in the all-in-one box.
79 Error Turn off then on The all-in-one has experienced an internal
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.
If you have recently installed a memory
DIMM in the HP LaserJet 3390/3392 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 wall
socket. Use the power switch to turn the all-
in-one on.
If the error persists, contact HP Customer
Care. See
HP Customer Care or the
support flyer that came in the all-in-one box.
Table 13-2 Critical error messages (continued)
ENWW Control-panel messages 331