Samsung MultiXpress X422x Series Administrator's Manual page 339

Cleaning the machine
4 Remove the paper dust.
Insert the paper dust stick back.
5
X422x Series/X425x Series/X430x Series K425x Series/K430x Series/K435x Series
6 Insert the waste toner container until it locks in place.
X422x Series/X425x Series/X430x Series
Close the front door. Ensure that the cover is securely closed.
7
X422x Series/X425x Series/X430x Series
If the message still appears, do step 7and 8 again.
K425x Series/K430x Series/K435x Series
K425x Series/K430x Series/K435x Series
4. Maintenance
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