Canon imagePROGRAF iPF6400SE User Manual page 596

Ink Level Detection
4
After checking the message, press the ▶ button.
5
Press ▲ or ▼ to select Yes, and then press the OK button.
6
Check the message and press the ▶ button.
7
Check the message and press the ▶ button.
8
Press ▲ or ▼ to select Yes, and then press the OK button.
9
A confirmation message about updating ink information is shown on
the Display Screen. After checking the message, press the ▶ but-
ton.
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iPF6400SE
User's Guide