Oce CS120 Reference Manual page 122

.
IMPORTANT
•
When shaking the toner bottle, be careful not to pull the shutter out accidentally.
6
.
IMPORTANT
•
The shape of the toner bottle opening and the toner supply port is different for each
color. If the toner bottle does not seem to fit the port securely, check again to make
sure that the toner bottle color and the color indicated for the toner supply port
match.
Adding Toner