Lexmark XM1342 User Manual page 137

Maintain the printer
3
Twist the blue latch, and then remove the toner cartridge from the used imaging unit.
4
Unpack the new imaging unit, and then insert the toner cartridge until it clicks into place.
Warning—Potential Damage: Do not expose the imaging unit to direct light for more than 10 minutes.
Extended exposure to light may cause print quality problems.
Warning—Potential Damage: Do not touch the photoconductor drum. Doing so may affect the quality of
future print jobs.
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