CAUSE:A NVRAM Data error.
SOLUTION: Restore NVRAM Data. When NVRAM data error is detected, restoring the backup data from Flash ROM on MFPC board is possible with the following procedure:
1. Press [Stop] > [0] > [7] > [1] > [3] > [9].
Will be shown on the control panel.
2.Press the on the control panel.
Note : This CD3XX error code may appear again and require the NVRAM Data restore procedure to be performed several times before clearing the error code(s) completely. By pressing , the data restore can be initiated. Restoring data takes a very short time.
3.When restore is finished, the control panel displays the message to power OFF the Main SW.
4. Power switch OFF/ON.
5.If restore failed, the trouble code will be shown again. If any trouble is detected, bring onto the control panel.The actual restore is only possible when a NVRAM data error is detected.