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Cleaning the mouse
This section provides instructions on how to clean an optical or non-optical mouse.
Optical mouse
An optical mouse uses a light-emitting diode and an optical sensor to navigate the pointer. If the pointer on
the screen does not move smoothly with the optical mouse, you might need to clean the mouse.
To clean the optical mouse, do the following:
1. Turn off your computer.
2. Disconnect the mouse cable from the computer.
3. Turn the mouse upside down to check the lens.
a. If there is a smudge on the lens, gently clean the area with a plain cotton-tipped swab.
b. If there is debris in the lens, gently blow the debris away from the area.
4. Check the surface on which you are using the mouse. If you have a very intricate picture or pattern
beneath the mouse, it may be difcult for the digital signal processor (DSP) to determine changes
in the mouse position.
5. Reconnect the mouse cable to the computer.
6. Turn your computer back on.
Non-optical mouse
The following illustration shows the components of a non-optical mouse.
Note: The illustration might be slightly different from your mouse.
1 Retainer ring
2 Ball
3 Plastic rollers
4 Ball cage
72 ThinkCentre User Guide