Oki MC573dn User Manual page 166

While setting consumables, be careful not to hit them to the LED head.
14
Close the output tray (b) slowly and push the center of the output tray for
confirmation.
15
Hold the handle (B) to close the scanner unit (a).
Do not close the scanner unit vigorously. It may cause the document feed roller of ADF to fall and get in the way
of loading documents.
If the document feed roller of ADF has fallen, open and close the ADF cover.
16
Please recycle image drums.
If you must dispose of an image drum, put it in a plastic bag or similar container and dispose of it in accordance
with your municipality's ordinances or guidelines.
- 166 -
8. Maintenance