Epson Action Laser Action Laser User Manual page 14

Introduction
Protect the light-sensitive drum from exposure to light. You
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should avoid exposing the drum unit to room light for any
longer than necessary. Never expose the drum to lighting any
stronger than room light. Overexposing the drum may cause
abnormally dark or light areas to appear on the printed page,
reducing the service life of the drum.
If you must expose the drum, either by taking the drum unit out
of the printer or by leaving the printer cover open, cover the
drum with a soft cloth or sheet of paper.
If you remove the drum, developer unit, or basket from the
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printer, always set them on a clean, smooth surface. Be sure not
to scratch or mar the roller on the developer unit or the surface
of the drum. Also avoid touching the drum, since oils from your
skin can permanently mar its surface and affect print quality.
Never try to force the printer's components into place. Although
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the printer is designed to be sturdy, rough handling can damage
the printer.
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Introduction