Canon BJC-85 User Manual page 240

I BJ cartridge does not return to the home position after installation
After the BJ cartridge is installed in the printer, the cartridge holder does not return to the
home position.
After replacing the BJ cartridge or an ink tank, the cartridge holder does not return to the
home position. When the CARTRIDGE button is pressed, the printer beeps but the POWER
light remains flashing.
Make sure the BJ cartridge is installed correctly
Turn the printer off, wait a few seconds, turn it back on, and then re-install the BJ cartridge.
Replacing a BJ Cartridge
If the BJ cartridge and holder do not return to the home position, then remove the
BJ cartridge and install another BJ cartridge.
Note
It takes approximately 2 seconds for the printer to recognize a newly
installed BJ cartridge. During this time, the cartridge holder will not return
to the home position, even after you press the CARTRIDGE button.
Home position is on the right.
Problems and Solutions
Troubleshooting 239