Canon W6400 Series Service Manual page 101

15) Remove the screw and detach the ink tube unit from the carriage.
b) Assembling the ink tube unit
If replacing the ink tube unit, turn on the power when the printhead and ink tank are not installed, and then install the printhead and ink tank by following
the messages and refill the ink.
Cable mount
F-4-21
Setscrew
F-4-22
Setscrew
Cable cover
Ink tube unit
Chapter 4
4-11