Samsung SCX-8240NA-CAS - Manual (Page 195)

Troubleshooting_ 195
Replacing the imaging unit
The machine uses four colors and has a different imaging unit for each one:
yellow(Y), magenta(M), cyan(C), and black(K).
When the life of the imaging unit expires totally
• The status LED turns red on and the display screen shows the error
message of replacing imaging unit.
• Check the type of the imaging unit for your machine.
At this stage, the imaging unit needs to be replaced.
Click this link to open an animation about replacing the imaging unit.
1. Open the front door.
2. Hold the left/right locking levers and push outward at the same time.
Then remove the waste toner container. (CLX-9252 9352 Series)
Lift the locking lever upward. Then remove the waste toner container.
(SCX-8230 8240 Series)
3. Hold and push down the lever, and open the inner cover.