Repair Information; Removal Precautions; Handling Esd-Sensitive Parts; Service Guidelines - Lexmark 6500E Service Manual

Repair information

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"Removal precautions" on page 59
• "Removal procedures" on page 60
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"ADF and scanner removals" on page 60

Removal precautions

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, use the following instructions 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 machine.
•
Make the least-possible movements with your body to prevent an increase of static electricity from clothing fibers,
carpets, and furniture.
• Put the ESD wrist strap on your wrist. Connect the wrist band to the system ground point. This discharges any static
electricity in your body to the machine.
•
Hold the ESD-sensitive part by its edge connector shroud (cover); do not touch its pins. If you are removing a
pluggable module, use the correct tool.
•
Do not place the ESD-sensitive part on the machine cover or on a metal table; if you need to put down the ESD-
sensitive part for any reason, first put it into its special bag.
•
Machine covers and metal tables are electrical grounds. They increase the risk of damage, because they make a
discharge path from your body through the ESD-sensitive part. (Large metal objects can be discharge paths without
being grounded.)
• Prevent ESD-sensitive parts from being accidentally touched by other personnel. Install machine covers when you
are not working on the machine, and do not put unprotected ESD-sensitive parts on a table.
•
If possible, keep all ESD-sensitive parts in a grounded metal cabinet (case).
•
Be extra careful while working with ESD-sensitive parts when cold-weather heating is used, because low humidity
increases static electricity.

Service guidelines

CAUTION—SHOCK HAZARD: Before disassembling the scanner, turn the power switch to the OFF position and
remove the power cord from the wall outlet. Disconnect all other cords and cables from the scanner before
proceeding.
•
Use caution not to drop small parts or screws inside the unit when disassembling and reassembling.
•
Do not pull the connector cable when disconnecting it. Hold the connector.
• When carrying the scanning head unit, put it in an anti-static bag.
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Keep the document glass platen surface clean with a dry, clean, lint-free cloth.
Repair information
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