NEC POWERMATE PROFESSIONAL 9000 User Manual page 59

Use these steps to clean your mouse:
Power off your computer and any peripherals attached
1.
to it.
Invert the mouse. Locate the mouse ball cover.
2.
Rotate the ball cover counterclockwise and remove the
3.
cover.
Turn the mouse over so that the cover and ball fall into
4.
your palm.
Clean the mouse as follows.
5.
T
Use tap water, or tap water and a mild detergent, to
clean the mouse ball.
T
Use a clean, lint-free cloth to dry the ball.
T
Blow into the mouse socket to remove remaining dust
or lint.
6. Gently put the ball back into the mouse.
Fit the ball cover back into the mouse and turn the cover
7.
clockwise until it locks in place.
Mouse ball cover
Using Your Computer 2-23