Lexmark 7300 series Service Manual page 27

Code Name
120A Undefined
Error
120B Address Error
120C NVRAM Error
120D Never Error
120E Software
Detected Error
Description
Microprocessor has
encountered an abort
or undefined
instruction.
Firmware attempted to
access invalid address
space.
An error was detected
in reading or writing
NVRAM.
Stack over and under
flow error; Code error
An error condition was
detected in the
software control code.
Action
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
Diagnostic information
4418-X6X
2-7