Oki MB760 Service Manual page 148

[F520] Operating system start error
Classification
Other service call
Check item
Setting
[F521] Integrity check error
Classification
Other service call
Check item
Setting
[F550] encryption partition error
Classification
Other service call
Check item
Setting
[F600] F/W update error
Classification
Other service call
Check item
Setting
45641001TH Rev.1
The operating system fails to start.
1. Reboot.
2. If it has still not recovered, reinstall the system software.
3. If it still persists after step 2, perform [3] + [C] + [POWER] → 3, and
then reinstall the system software.
Notes:
User data will be deleted when [3] + [C] + [POWER] → 3 is
performed.
The program data fails to be authenticated.
Restart the equipment.
If the error is not recovered after restarting the equipment, reinstall
software following the procedure below.
1. Reinstall the system software and application program.
 P. 6-13 "6.2.3 Precautions and procedures when replacing the
HDD"
The encryption partition fails to be read and written.
• Recover the encryption key with [3] + [C] + [POWER] → 5.
The firmware fails to be updated.
1. Perform [3] + [C] + [POWER] → [1] → [START] for "Clear Error Flag in
Software Installation".
2. Reinstall the firmware in error displayed on the F600 error screen.
Oki Data CONFIDENTIAL
Error item
Measures
Error item
Measures
Error item
Measures
Error item
Measures
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