Printronix L5000 Series Maintenance Manual page 27

Before servicing the printer, disconnect its power plug from the power outlet.
When performing operational checkout with the printer turned ON, use extreme
caution not to let your clothing or hair get caught in the rotating mechanisms.
Do not block or obstruct any cabinet ventilation slots.
Make sure that no foreign matter enters the printer, as injury to personnel,
equipment malfunction, or fire may result.
Do not spill any kind of liquid on the printer. If the printer surface is soiled, use
only cleaning agents and methods approved by the manufacturer.
Do not lean on or place heavy objects on top of the printer.
Do not look directly at the flash lamp.
Turn off the power immediately if the printer emits an unusual noise or smell.
Lifting and removing the top cover from the main body requires two people (one
person for the paper feed side, the other person for the paper output side).
Introduction 1–3