Erreur 345

##345 [ TX / RX ] BJ cartridge head cleaning error. 

A. Cause: When the power is turned on after or when the BJ cartridge is installed, there is a foreign material in the carriage unit. 

Solution: Remove the foreign material in the carriage unit. 

B. Cause: The actuator malfunctions during cleaning. 

Solution: Power cycle the machine (unplug unit). 

Solution: Replace the purge unit. 

On other Canon the actuater is too the right within the purge unit. It gets gummed up with ink. So perhaps cleaning out the purge unit will help. It is part of the gears you see there.