3100cn drum replacement

http://support.euro.dell.com/support/edocs/systems/3100cn/en/UG/section21.html#1093955

How to replace the Drum Cartridge
CAUTION: Before performing any of the following procedures, read and follow the safety instructions in your Owner's Manual.

Dell cartridges are available only through Dell. You can order more online at http://www.dell.com/supplies or by phone. To order by phone, see your Owner's Manual.

Dell recommends Dell drum cartridges for your printer. Dell does not provide warranty coverage for problems caused by using accessories, parts, or components not supplied by Dell.
NOTE: Remove any print jobs from the center output tray and close the multipurpose feeder cover before opening the top cover or front door.
NOTE: First pull the optional duplex module back if it is installed.

1. To open both covers on the printer, grab the notch in the front door and pull forward. Lift the top cover and push back.

2. To remove the used drum cartridge, push up the lever on the right side of the printer.

3. Grab the drum cartridge by the handle, and pull it up and out.

CAUTION: Do not touch inside the printer with your hands. Some parts may be hot. Allow time for the printer to cool before attempting to remove parts in this area.

4. Remove the protective sheet from the drum cartridge.

CAUTION: Do not touch the drum at the bottom of the drum cartridge.

5. To insert the drum cartridge, push up the lever on the right side of the printer. With the lever in the upright position, hold the drum cartridge by the handle, align the arrows on the drum cartridge with the corresponding arrows on the printer and guide the cartridge in until it snaps into place.

6. Pull down the lever on the right to lock the drum cartridge in place.

7. Close the top cover.