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Your service representative will recover your used Drum Unit. Put it in a black plastic bag and store it in a box by itself.
A Drum Unit may be damaged due to exposure to light. Do not take it out of a black plastic bag until just before it is to installed.
If a Drum Unit other than for black has reached the replacement time, printing can be continued forcibly using black. Tap [Continue], and then select a desired print job.
After replacing a Drum Unit, be sure to clean the Print Head Glass for each color. For details on how to clean the Print Head Glass, refer to Here.
Handling toner and Drum Unit
Do not throw a Drum Unit into a fire. Doing so may cause hot toner to spray in all directions, which may cause burn injuries.
Be careful not to get the inside of the machine, your clothes, or hands dirty with toner.
If any toner does get on your hand, wash it off using water or neutral detergent.
If any toner gets into your eyes, immediately wash it out with water and consult your doctor.