Canon iPF840 User Manual page 581

iPF840
• Do not touch the Linear Scale (a), Carriage Shaft (b),
or Ink Tube Stabilizer (c). Touching these parts may
Important
damage them.
3
If the ventilation duct (a) is dirty, use a damp cloth that you
have wrung out completely to wipe it clean. Move the Car-
riage out of the way manually if the Carriage is concealing
the ventilation duct, and then clean the duct.
4
Pull the Printhead Fixer Lever forward all the way to open it
completely.
5
Pull up the Printhead Fixer Cover to open it completely.
User's Guide
a
c
b
a
Replacing the Printhead
581