Canon imagePROGRAF iPF771 User Manual page 552

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 ▶ button.
10
552
Press ▲ or ▼ to select Yes, and then press the OK button.
Ink level detection is now released.
iPF770
User's Guide