Lexmark 4021 User Manual page 138

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Maintaining the printer
3
Unlock the photoconductor unit.
4
Remove the photoconductor unit.
5
Unpack the new photoconductor unit.
Warning—Potential Damage: Do not expose the photoconductor 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 print
quality of future print jobs.
6
Install the photoconductor unit.
138

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