Handling Esd‑Sensitive Parts - Lexmark CX825 Service Manual

To erase the hard disk memory:
1
From the home screen, touch Settings > Device > Maintenance > Out of Service Erase.
2
Select the Sanitize all information on hard disk check box, and then touch ERASE.
3
Follow the instructions on the display.
Notes:
•
This process can take from several minutes to more than an hour, making the printer unavailable for
other tasks.
•
After removing the hard disk, return it to the next level of support.
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, do the following:
•
Turn off the printer before removing logic boards.
•
Keep the parts in their original packing material until you are ready to install them into the printer.
•
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 action
discharges any static electricity in your body to the printer.
•
Hold the parts by their edge connector shroud. Do not touch its pins. If you are removing a pluggable module,
then use the correct tool.
•
If possible, keep all parts in a grounded metal cabinet.
•
Do not place the parts on the printer cover or on a metal table. If you need to put down the parts, then put
them into their packing material.
•
Prevent parts from being accidentally touched by other personnel. Cover the printer when you are not
working on it.
•
Be careful while working with the parts when cold-weather heating is used. Low humidity increases static
electricity.
Controller board/control panel replacement
This procedure should be followed only if both the controller board and the control panel fail. If you need to
replace only one of the FRUs, follow the startup procedure described in the FRU's removal procedure.
CAUTION—POTENTIAL INJURY: The lithium battery in this product is not intended to be replaced.
There is a danger of explosion if a lithium battery is incorrectly replaced. Do not recharge, disassemble,
or incinerate a lithium battery. Discard used lithium batteries according to the manufacturer's instructions
and local regulations.
Warning—Potential Damage: If the control panel and the controller board are being replaced at the same
time, replace the parts in this order to avoid damage to the machine.
1
Replace the controller board first.
Note: Do not replace the new control panel and controller board in the machine at the same time.
2
After installing the new controller board, and before installing the new control panel, start the printer into
diagnostics mode.
Repair information
586
7564