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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 difficult 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 non-optical mouse uses a ball to navigate the pointer. If the pointer on the
screen does not move smoothly with the mouse, you might need to clean the
mouse.
To clean a non-optical mouse:
Note: The following illustration might be slightly different from your mouse.
1 Retainer ring
2 Ball
3 Plastic rollers
4 Ball cage
1. Turn off your computer.
2. Disconnect the mouse cable from the computer.
3. Turn the mouse upside down. Twist the retainer ring 1 to the unlocked
position to remove the ball.
4. Place your hand over the retainer ring and ball 2, and then turn the mouse
right-side up, so that the retainer ring and ball fall out into your hand.
5. Wash the ball in warm, soapy water then dry it with a clean cloth.
6. Blow air carefully into the ball cage 4 to dislodge dust and lint.
7. Look for a buildup of dirt on the plastic rollers 3 inside the ball cage. This
buildup usually appears as a stripe running across the middle of the rollers.
Chapter 6. Troubleshooting and diagnostics 59