Canon imagePROGRAF iPF9400 - Manual (Page 860)

If a message for the Maintenance Cartridge replacement is shown on the Display Screen
When the Maintenance Cartridge is almost empty, the Message Lamp lights, a message to replace the Maintenance
Cartridge is displayed on the Display Screen, and you cannot print. Replace the Maintenance Cartridge with a new
one.
When to Replace the Maintenance Cartridge iPF9400
User's Guide
Maintenance and Consumables
Maintenance Cartridge
860