Epson EPL-5900 Service Manual page 11

When removing a Board from its conductive bag or conductive
case, do not touch the pins of the ICs or the printed pattern.
Place it in position by holding only the edges of the Board.
When touching the PWB, wear a wrist strap and connect its cord
to a securely grounded place whenever possible. If you cannot
wear a wrist strap, touch a metal part to discharge static
electricity before touching the PWB.
Note that replacement of a PWB may call for readjustments or
resetting of particular items.
HANDLING OF OTHER PARTS
The magnet roller generates a strong magnetic field. Do not bring it
near a watch, floppy disk, magnetic card, or CRT tube.
HANDLING OF THE PC DRUM
* Only for Products Not Employing an Imaging Cartridge.
During Transportation/Storage:
Use the specified carton whenever moving or storing the PC
Drum.
The storage temperature is in the range between -20°C and
+40°C.
In summer, avoid leaving the PC Drum in a car for a long time.
Handling:
Ensure that the correct PC Drum is used.
Whenever the PC Drum has been removed from the copier,
store it in its carton or protect it with a Drum Cloth.
The PC Drum exhibits greatest light fatigue after being exposed
to strong light over an extended period of time. Never, therefore,
expose it to direct sunlight.
Use care not to contaminate the surface of the PC Drum with oil-
base solvent, fingerprints, and other foreign matter.
Do not scratch the surface of the PC Drum.
Do not apply chemicals to the surface of the PC Drum.
Do not attempt to wipe clean the surface of the PC Drum.