Epson EPL-5900L, Reference Manual

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3
❏
When removing or installing a photoconductor unit, prevent
the light-sensitive drum from exposure to light for any longer
than necessary. The light-sensitive drum is the green cylinder
visible through the openings in the unit. Overexposing the
drum might cause abnormally dark or light areas to appear
on the printed page and may shorten the service life of the
unit.
❏
Be careful not to scratch the surface of the drum. When you
remove the photoconductor unit from the printer, always
place the unit on a clean, smooth surface. Avoid touching the
drum, since oils from your skin can permanently damage its
surface and affect print quality.
❏
To get the best print quality, do not store the photoconductor
unit in an area subject to direct sunlight, dust, salt air, or
corrosive gases (such as ammonia). Avoid locations subject to
extreme or rapid changes in temperature or humidity.
❏
Wait for at least one hour before using a developer cartridge
or a photoconductor unit after moving it from a cool to a warm
environment to prevent damage from condensation.