Kyocera FS-2100DN Operation Manual page 245

Lock lever
9
Turn the lock lever to the lock position.
10
Close the top cover.
Note If the top cover (top tray) does not close, check that the
new toner container is installed correctly (in step 7).
After use, always dispose of the toner container and the
waste toner box in accordance with Federal, State and Local
rules and regulations.
Proceed to the next section.
7-5
Maintenance