Oki MB760 Service Manual page 139

[F109_0] key consistency error (Consistency check operation error)
Classification
Other service call
Check item
Setting
SRAM board (for SYS board)
SYS board
Replacement part
SRAM board
CU board
[F109_1] key consistency error (sRam encryption aes key data damage)
Classification
Other service call
Check item
Setting
[F109_2] key consistency error (signature Check public key damage)
Classification
Other service call
Check item
Setting
45641001TH Rev.1
Key consistency error - Key consistency check on each key data fails.
Reboot the equipment.
If it cannot be recovered, reinstall the software in the following procedure.
1. Install the system firmware.
2. If the error cannot be solved after installing the system firmware,
reinstall the system software and application program.
 P. 8-15 "8.3.2 Update procedure"([A] Update procedure)
If the error is not cleared after the software reinstallation, replace the
SRAM board.
 P. 6-22 "6.2.5 Precautions and procedure when replacing the SRAM
board (for the SYS board)"
If the error is not cleared after this (see above), replace the SYS board.
 P. 6-18 "6.2.4 Precautions and Procedures when replacing the SYS
board"
Key consistency error - AES key data used for SRAM encryption are
damaged.
Reboot the equipment.
If it cannot be recovered, reinstall the software in the following procedure.
1. Install the system firmware.
2. If the error cannot be solved after installing the system firmware,
reinstall the system software and application program.
 P. 8-15 "8.3.2 Update procedure"([A] Update procedure)
Key consistency error - Public key data used for Integrity Check are
damaged.
Reboot the equipment
If it cannot be recovered, reinstall the software in the following procedure.
1 Install the system firmware.
2. If the error cannot be solved after installing the system firmware,
reinstall the system software and application program.
 P 8-15 "8.3.2 Update procedure"([A] Update procedure)
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