Good morning everyone. In some cases I solved it by running Recall Standard Data for Factory Default in Process Adjustment and Quality Adjustment. I observed that it happened in cases where the batteries were already exhausted and because of persisting, cases like these happened.
The values are saved in the NVRam and in some cases, the simple procedure of changing the batteries is not enough.
Try the Recall and then perform the battery replacement procedures.
Good luck.
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