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


 
28 Chapter 1 Control-panel messages EN
Bad fuser error (50)
Status log code: 40050
l Be sure that the
fuser is installed
correctly and that it
is fully seated.
l Reseat the fuser
cables.
l Replace the fuser.
l Replace the engine
controller assembly.
l Replace the power
supply.
Formatter internal RAM
or ROM error
l Turn the printer off,
and then turn it back
on.
l Replace the
formatter.
Fan motor error (58)
Status log code: 40058
l Turn the printer off,
and then turn it back
on.
l Turn the printer off,
and then reseat the
connection between
the fan and the
formatter.
l Replace the fan.
l Replace the engine
controller assembly.
Fatal error secondary codes (continued)
Control-panel light
pattern
Fatal error
secondary message
Recommended
action