Canon imagePROGRAF iPF8400S User Manual page 888

Replacing the Printhead
8
Press the OK button.
Ink begins being drawn in. When it finishes, instructions are displayed on the Display Screen.
It takes about three minutes for ink to be drawn into the system.
Replace the Printhead
1
Open the Top Cover.
2
If the Carriage Cover is dirty, use a damp cloth that you
have wrung out completely to wipe it clean.
888
iPF8400S
User's Guide