Diagnostic information 2-21
5025-2xx, 4xx
957.xx Service
System Board
Controller board failure. ASIC failure.
958.xx Service
NAND Failure
Printer has performed more than 100
“shift and reflash” operations as a
result of ECC bit corrections.
959.01 Service
Invalid Firmware
Controller verification failure of system
boot code
Update firmware or replace the controller
board. See “Controller board removal”
on page 4-19.
959.02 Service
Invalid Firmware
Failure to authenticate Signature
Verification Code.
Update firmware or replace the controller
board. See “Controller board removal”
on page 4-19.
959.03 Service
Invalid Firmware
Signature verification Code failure to
authenticate a code partition.
Update firmware or replace the controller
board. See “Controller board removal”
on page 4-19.
959.04 Service
Invalid Firmware
Jump to unverified address. Update firmware or replace the controller
board. See “Controller board removal”
on page 4-19.
959.05 Service
Invalid Firmware
Unknown Boot Failure. Update firmware or replace the controller
board. See “Controller board removal”
on page 4-19.
959.20 Service
System Board
System hardware failure. Replace the controller board. See
“Controller board removal” on
page 4-19.
959.21 Service
System Board
System did not respond to command
request.
Replace the controller board. See
“Controller board removal” on
page 4-19.
959.22 Service
System Board
Challenge Secret Failure. ASIC/SP mismatch. Replace the controller
board. See “Controller board removal”
on page 4-19.
959.23 Service
System Board
System self test failure during
initialization.
Replace the controller board. See
“Controller board removal” on
page 4-19.
959.24 Service
System Board
EEPROM Retention Error (write
failure)
Replace the controller board. See
“Controller board removal” on
page 4-19.
959.25 Service
System Board
Insufficient device space during
hardware programming.
Replace the controller board. See
“Controller board removal” on
page 4-19.
959.26 Service
System Board
Incremental counter reset exceeds
maximum value.
Replace the controller board. See
“Controller board removal” on
page 4-19.
959.27 Service
System Board
Increment count failed due to
maximum value limit.
Replace the controller board. See
“Controller board removal” on
page 4-19.
959.28 Service
System Board
Invalid SP memory configuration. Replace the controller board. See
“Controller board removal” on
page 4-19.
Service error messages (1xx, 9xx) (continued)
Error code Description Action
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