Cleaning and Maintenance 7-5
Access the Developer Assemblies by removing the Top Main Cover, Right and Left 
Side Covers, Door C, the Imaging Unit, and the Developer Frame Assembly. Use the 
following steps to install the Long-Life Maintenance Kit.
Caution
Allow adequate time for the Fuser to cool before servicing the printer.
1. Switch printer power Off and disconnect the power cord.
2. Remove the Top Cover
3. Open the Door A.
4. Open Door C.
5. Remove the Toner Cartridges.
Note
After removal of the Top Main Cover, re-install the Toner Cartridges to reduce 
the amount of toner spillage and contamination.
6. Remove 2 screws (self-tapping, plastic 10 mm) that secure the Top Main Cover.
7. Release the 2 hooks at the rear of the cover.
8. Hold Door C open slightly. Pull out and remove the Top Main Cover toward the 
back of the printer.
9. Replace and lock the four Toner Cartridges into their respective holders.