Lexmark MS310d Quick Refence Manual page 25

If the supplemental light sequence matches the light sequence in the preceding illustration, then do the following.
CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot
component, allow the surface to cool before touching it.
1
Press the button on the right side of the printer, and then open the front door.
2
Pull out the toner cartridge using the handle.
3
Lift the green handle, and then pull out the imaging unit from the printer.
Warning—Potential Damage: Do not touch the photoconductor drum. Doing so may affect the print quality of
future print jobs.
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