Lexmark Optra C710 Service Manual - Page 71

5016-001 Error Code Action 963 Memory Error 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 "Controller Board Assembly Removal" on page 4-19. 964 Emulation Error 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 Replace the code overlay SIMM. 965 Emulation Error Indicates that the download emulation is outdated.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. 975 Network Card X Indicates that a failure has occurred with the network card installed in slot x (x=1, 2 or 3). 976 Network Card X Indicates an unrecognizable network card x. Replace network card x. 978 Network Card X Indicates that a bad checksum has been detected while programming network card x. Replace network card x. 979 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 "Controller Board Assembly Removal" on page 4-19. 990 Coupling Operation Error A failure has occurred in the coupling operation. Go to the "Coupling Unit Service Check" on page 2-42. 991 Coupling Sensor Error Coupling sensor 1 and 2 have turned on simultaneously. Go to the "Coupling Unit Service Check" on page 2-42. 992 High Voltage Leakage The high voltage leakage detection circuit has detected leakage in the high voltage system. Go to the "High Voltage Leakage Detect Service Check" on page 2-58. Diagnostic Information 2-5