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2Turn the mouse upside-down and turn the plastic ring on the bottom counterclockwise
to disengage it.
If you have an older mouse, you may need to press the plastic ring (rather
than turn it) to disengage it.
If the mouse is locked, see the next section, “Locking and Unlocking the
Mouse,” for instructions on how to unlock it.
3Turn the mouse right-side up with one hand and catch the ring and the ball with your
other hand.
4Clean the three small rollers inside the mouse with a cotton swab moistened with water.
Rotate the rollers to clean all around them.
5Wipe the mouse ball with a clean, soft, dry, and lint-free cloth.
6If necessary, wash the mouse ball with warm soapy water (use a mild soap such as a
dishwashing liquid) and then dry the mouse ball thoroughly.
7Gently blow into the mouse case to remove any dust that has collected there.
8Put the ball and the ring back in place.
Your mouse should roll smoothly across your mouse pad or desk. If it doesn’t,
repeat these instructions carefully.
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Appendix A