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26 Chapter 1 – Control-panel messages EN
Fatal error secondary codes
Control-panel light
pattern
Fatal error
secondary message
Recommended
action
General fatal error (79) l Turn the power off
and back on.
l If the error persists,
turn off the power.
Remove all
accessories (for
example, DIMM,
EIO card). Turn on
the printer.
l Replace the
formatter.
l Replace the engine
controller.
l Replace the power
supply.
Engine communication
error (55)
Status log code: 40055
l A printer error has
occurred. Press G
O
to clear the error
message.
l Check the
connections to the
formatter and the
engine controller
assembly.
l Replace the
formatter.
l Replace the engine
controller.
l Replace the power
supply.