OKI C610 Manual De Usuario

Insert the left end of the cartridge into the top of the image 

drum unit first, pushing it against the spring on the drum 

unit, then lower the right end of the cartridge down onto the 

image drum unit.

10. Pressing gently down on the cartridge to ensure that it is 

firmly seated, push the colored lever towards the rear of the 

printer. This will lock the cartridge into place and release 

toner into the image drum unit.