Oki MB760 Service Manual page 209

[a] Backup sRam
Notes:
If "[A] Backup SRAM" fails, proceed to "[B] Return License".
If "[A] Backup SRAM" succeeds, proceed to "[C] Replace SRAM board".
(1) Turn the power ON while pressing [6] and the [CLEAR] button simultaneously.
(2) When "SRAM Clear Mode" appears on the LCD, key in [0] to select "0. Set Serial
Number" and then press the [START] button.
(3) Key in the serial number on the label attached to the rear cover of the equipment, and
then press the [OK] button.
(4) "Serial Number Setting completed" is displayed.
(5) Turn the power OFF.
(6) Install the USB device in the equipment, and then turn the power ON while pressing [5]
and [9] buttons simultaneously.
(7) Key in [1] to select "1. Backup SRAM Data to USB", and then press the [START]
button.
(8) Enter a password (max. 15 characters) to be set for the backup data.
(9) Restart the equipment after the backup is completed.
(10) Turn the power OFF.
[B] Return License
Notes:
When installing the Data Overwrite Enabler (GP-1070) and security mode is setting High
Security, set the security mode levlel to "1" (Low level). Then restart the equipment.
(1) Start up with the Setting Mode (08).
(2) Enter the password, and then press the [OK] button.
(If the password is not set for Service, press the [ENTER] button without entering
anything.)
(3) Key in [3840], and then press the [ENTER] button.
(4) Select the license to be returned, and then press the [REMOVE] button.
(5) Install the one-time dongle, which you used for uploading the selected license, in the
equipment, and then press the [OK] button.
(6) The Remove screen is displayed, then press the [YES] button. If this screen is not
displayed, check whether the one-time dongle is installed in the equipment properly.
(7) After 10 to 40 seconds passes, the screen for notifying the success of performance is
displayed.
Then press the [OK] button. If this screen is not displayed or the screen for notifying
the failure of performance is displayed, quit this operation by pressing the [NO]/[CLOSE]
button. Then, check whether the one-time dongle, which you used for uploading the
selected license, is installed in the equipment.
(8) Check that the returned license is not displayed on the screen.
Remarks:
If there are any other licenses to be returned, repeat from step (4).
If there is no more licenses to be returned, press the [CLOSE] button, and then turn the
power OFF.
45641001TH Rev.1
Oki Data CONFIDENTIAL
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