Lexmark CX331 User Manual page 136

Maintain the printer
3
Remove the used print cartridge.
4
Unpack the new print cartridge.
Warning—Potential Damage: Do not expose the underside of the print cartridge to direct light. Extended
exposure to light may cause print quality problems.
Warning—Potential Damage: Do not touch the underside of the print cartridge. Doing so may affect the
quality of future print jobs.
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