246 Replacing Consumable Products
Replacing a developer cartridge before the end of its service 
life
Use the following procedure to replace a developer cartridge 
before the end of its service life.
1. Make sure that Ready or Sleep is displayed in the LCD panel.
2. Select Change Toner X (The letters C, M, Y, or K appear in 
place of X, indicating the colors Cyan, Magenta, Yellow, and 
Black.) in the Reset Menu on the control panel.
3. While the cartridge X you selected above moves to the 
cartridge replacement position, Please Wait appears on the 
LCD panel. 
4. Replace Toner X appears in the LCD panel when the 
cartridge to be replaced reaches the cartridge replacement 
position.
5. See “Developer Cartridge” on page 242 for replacement 
instructions.
Photoconductor Unit
Prepare a new photoconductor unit for replacement when you 
see a message informing you to do so.
Handling precautions
Always observe the following handling precautions when 
replacing the photoconductor unit.
❏ When replacing the photoconductor unit, avoid exposing it 
to room light any longer than necessary.