Ricoh M126 Service Manual page 246

Error
953.xx NVRAM chip failure with mirror
NVRAM chip failure with system
954.xx
part.
The code ROM or NAND flash failed
the Cyclic Redundancy Check or the
955.xx
NAND experienced an uncorrectible
multi-bit failure.
956.00 RIP card failure: processor failure
956.01 Processor overheated
957.xx RIP card failure: ASIC failure
The machine has performed more
than 100 "shift and reflash"
958.xx
operations as a result of ECC bit
corrections
Firmware or controller board errors
Controller verification failure of
959.01
pensive boot code
Failure to authenticate Signature
959.02
Verification Code
Signature Verification Code failed to
959.03
authenticate a code partition.
959.04 Jump to unverified address
959.05 Unknown boot failure
959.20 Controller hardware failure
SM
Description
6-41
Messages and Error Codes
Action
Replace the engine board. See
"Engine Board Service Check" in
"Troubleshooting".
Replace the controller board. See
"Controller Board Service Check" in
"Troubleshooting".
Call the next level of support to update
the firmware, or replace the controller
board. See "Controller Board Service
Check" in "Troubleshooting".
Update firmware and call the next level
of support, or replace the controller
board. See "Controller Board Service
Check" in "Troubleshooting".
Update firmware and call the next level
of support, or replace the controller
board. See "Controller Board Service
Check" in "Troubleshooting".
Replace the controller board. See
M126/M127/M128