r Align the slot of the BJ cartridge with the yellow guide, and gently insert the cartridge as far back as it goes.
r The BJ cartridge will be slightly tilted when you insert it.
Lower the lock lever.
r Press the blue lock lever down completely; do not use excessive force.
r The BJ cartridge is now positioned and locked. If you cannot lower the cartridge lock lever, remove the BJ cartridge and then try inserting it again.