Canon iPF6400S User Manual page 835

iPF6400S
If the printer has a Spectrophotometer Unit, look under
•
the Spectrophotometer Unit to check the position of the
Note
Maintenance Cartridge before removing it.
4
Keep the used Maintenance Cartridge level as you
put it in the plastic bag that was in the box, as shown.
5
Expel excess air from the plastic bag as you seal the
zipper. Fold the bag in half.
User's Guide
Replacing the Maintenance Cartridge
835