Lexmark E250DN - Govt Laser 30PPM Special Build Mono Taa Service Manual page 52

4512-220, -230
NVRAM failure
Error codes 950-954 indicate a problem in the NVRAM (nonvolatile random access memory). Replace the
operator panel assembly. Codes 955-959 indicate a failed controller card assembly. Replace the controller card.
Service tertiary error codes–NVRAM failure
Lights
Service secondary codes–95x
Service tertiary codes–NVRAM failure
950–Secure EEPROM data does
not match NVRAM
951–Secure EEPROM failure
952–NVRAM CRC failure
954–NVRAM chip failure
955–Code ROM or NAND failed
CRC
956–Processor failure
957–ASIC failure
958–NAND failure
959–SRAM failure
Network error
Indicates an error in the network circuitry. Replace the controller card assembly.
Service tertiary error codes–network error
Lights
Service secondary codes–97x
Service tertiary codes–network error
975–Unrecognizable network port
976–Unrecoverable software error
in network port
978–Bad checksum while
programming port
979–Flash parts failed while
programming port
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Lexmark™ E250d and E250dn
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