Lexmark MS711 - Page 249

Error code Description Action
940.xx RIP to engine communication failure—the zero
crossing signal used for fuser control in the low voltage
(LV) power supply has failed, or the wrong low voltage
power supply has been installed.
Go to “LVPS service check” on page 244.
948.xx Failed engine card—pel clock check failed.
Replace the controller board.
Go to “Controller board removal” on page 492.
949.xx Failed engine card—delay line calibration failure.
Replace the controller board.
Go to “Controller board removal” on page 492.
950.xx NVRAM mismatch failure—mismatch between
controller board EEPROM and control panel mirror.
".xx" codes:
• 00-29— mismatch between system and mirror
• 30-60—mismatch between secure and system
Go to “NVRAM mismatch failure service check” on
page 258.
952.xx A recoverable NVRAM Cyclic Redundancy Check (CRC)
error occurred—n is the offset at which the error
occurred.
POR the printer.
953.xx NVRAM chip failure with mirror part
Replace the controller board.
Go to “Controller board removal” on page 492.
954.xx NVRAM chip failure with system part
Replace the controller board.
Go to “Controller board removal” on page 492.
955.xx The Code ROM or NAND flash failed the Cyclic
Redundancy Check (CRC) or the NAND experienced an
uncorrectable multi-bit failure.
Replace the controller board.
Go to “Controller board removal” on page 492.
956.xx RIP card failure—processor failure
Replace the controller board.
Go to “Controller board removal” on page 492.
956.01 Processor Overtemp
Replace the controller board.
Go to “Controller board removal” on page 492.
957.xx RIP card failure—ASIC failure
Replace the controller board.
Go to “Controller board removal” on page 492.
958.xx Controller Board NAND Failure—printer has
performed more than 100 shift and reflash operations
as a result of ECC bit corrections.
Replace the controller board.
Go to “Controller board removal” on page 492.
959.01 Controller verification failure of smart chip boot code
Upgrade firmware. If that fails, replace the controller
board.
Go to “Controller board removal” on page 492.
959.02 Failure to authenticate Signature Verification Code
Upgrade firmware. If that fails, replace the controller
board.
Go to “Controller board removal” on page 492.
4063
Diagnostic information
249