Canon 2161B002 User Manual page 714

Printheads
16.
With the nozzles facing down and the metal contacts toward the back, tilt the Printhead slightly
forward as you insert it in the Carriage. Carefully push the printhead rmly into the Carriage,
ensuring that the nozzles and metal contacts do not touch the carriage.
17.
Pull the Printhead Fixer Cover down toward the front to lock the Printhead in place.
18.
Push the Printhead Fixer Lever toward the back of the printer until it clicks.
700 Maintenance