Repair Information 3-1
4510-001
3. Repair Information
Handling ESD-Sensitive Parts
Many electronic products use parts that are known to be sensitive to
electrostatic discharge (ESD). To prevent damage to ESD-sensitive
parts, follow the instructions below in addition to all the usual
precautions, such as turning off power before removing logic boards:
• Keep the ESD-sensitive part in its original shipping container
(a special “ESD bag”) until you are ready to install the part into
the printer.
• Make the least-possible movements with your body to prevent
an increase of static electricity from clothing fibers, carpets, and
furniture.
• Secure the ESD wrist strap around your wrist and connect the
wrist band to the engine ground point. This discharges any
static electricity, in your body, to the printer.
• Hold the ESD-sensitive part by its edge connector shroud
(cover); do not touch the pins. If you are removing a pluggable
module, use the correct tool.
• Do not place the ESD-sensitive part on the printer cover or on a
metal table, as electrical grounding may occur, which increases
the risk of damage due to the discharge path your body could
establish through the ESD-sensitive part. (Large metal objects
can be discharge paths without being grounded.)
• When laying the ESD-sensitive part down, always return it to
the ESD-sensitive bag.
• If possible, keep all ESD-sensitive parts in a grounded metal
cabinet (case).
• Take care working with ESD-sensitive parts when cold weather
heating is used, as low humidity increases static electricity.
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