To replace the imaging drum on your printer, follow these steps:

1. Turn off the printer.
2. Unplug the power cord from the power source.
3. Carefully remove the imaging drum from the printer.
   
4. Align the new imaging drum with the printer.
5. Insert the new imaging drum into the printer.
6. Close the top cover of the printer.
7. Plug in the printer and turn on the power source.