Epson AcuLaser C4000 Owner's Manual page 13

Do not dispose of used toner cartridges, photoconductor
units, fuser units, or transfer units in fire, as they can explode
and cause injury. Dispose of them according to local
regulations.
Wait for at least one hour before using a toner cartridge or a
fuser unit after moving it from a cool to a warm environment
to prevent damage from condensation.
When removing the photoconductor unit, avoid exposing it
to room light for more than five minutes. The unit contains a
green-colored light-sensitive drum. Exposure to light can
damage the drum, causing dark or light areas to appear on
the printed page and reducing the service life of the drum. If
you need to keep the unit out of the printer for long periods,
cover it with an opaque cloth.
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 oil 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, salty air, or
corrosive gases (such as ammonia). Avoid locations subject to
extreme or rapid changes in temperature or humidity.
Be sure to keep all consumable components out of the reach
of children.
Do not leave jammed paper inside the printer. This can cause
the printer to overheat.
Avoid using outlets that other appliances are plugged into.
Use only an outlet that meets the power requirements of this
printer.
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