Lexmark Optra C710 Service Manual page 71

5016-001
Error Code
963 Memory
Error
964 Emulation
Error
965 Emulation
Error
975 Network
Card X
976 Network
Card X
978 Network
Card X
979 Network
Card X
990 Coupling
Operation Error
991 Coupling
Sensor Error
992 High Voltage
Leakage
Action
Indicates that the DRAM installed in slot 3 on the
controller board is defective. Replace the DRAM SIMM.
If this does not fix the problem, replace the controller
board assembly. Go to the
Assembly Removal" on page
Indicates that the download emulation CRC has failed. A
checksum failure was detected in the emulation header
or emulation file. Replace the code overlay SIMM.
Indicates that the download emulation is outdated. Time
stamps indicate that the download emulation and
controller code are incompatible.
• Disable the download emulation.
• Program the download emulation into the code
overlay SIMM.
• If the above steps do not fix the problem, replace the
code overlay SIMM and re-download the emulation.
Indicates that a failure has occurred with the network
card installed in slot x (x=1, 2 or 3).
Indicates an unrecognizable network card x. Replace
network card x.
Indicates that a bad checksum has been detected while
programming network card x. Replace network card x.
Indicates that flash parts failed while programming
network card x. If this is a network model printer, replace
the controller board. Go to the
Assembly Removal" on page
A failure has occurred in the coupling operation. Go to
the "Coupling Unit Service Check" on page
Coupling sensor 1 and 2 have turned on simultaneously.
Go to the "Coupling Unit Service Check" on
page 2-42.
The high voltage leakage detection circuit has detected
leakage in the high voltage system. Go to the
Voltage Leakage Detect Service Check" on
page 2-58.
"Controller Board
4-19.
"Controller Board
4-19.
Diagnostic Information
2-42.
"High
2-5