Lexmark Optra C710 Service Manual - Page 223
Repair Information, Handling ESD-Sensitive Parts
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5016-001 4. 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. Repair Information 4-1