Canon imagePROGRAF iPF6300S - Mail Box Full. Delete Unwanted Data; Mail Box Nearly Full; Maximum Jobs Stored

Mail box nearly full.
Cause Corrective Action
There is now less than 1 GB available for personal boxes on the
printer hard disk.
Delete unneeded jobs stored in Personal Boxes.
(See "Deleting Saved Jobs.") →P.736
Maximum jobs stored.
Cause Corrective Action
100 jobs are stored in the personal box. Delete unneeded jobs stored in personal boxes.
(See "Deleting Saved Jobs.") →P.736
Mail box full. Delete unwanted data
Cause Corrective Action
100 jobs are stored in the Personal Box. Press the Stop button and stop printing.
Delete print jobs from the queue.
(See "Managing the Job Queue (Deleting or Preempting Other Jobs).")
→P.724
Delete unneeded jobs stored in personal boxes.
(See "Deleting Saved Jobs.") →P.736
Error Message > Messages regarding the hard disk >
iPF6300S Mail box nearly full.
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