Bull Cedoc NovaScale R440 E2, User Manual, Page: 301 / 552

Maintenance 7-5
Cleaning the Keyboard/Mouse
Make sure that the server and peripheral devices are all off-powered (the POWER LED goes off), and then wipe the keyboard
surface with a dry cloth.
The mouse operation depends on the degree of smoothness of the internal ball rotation. To keep the mouse ball clean, use the
mouse in a place with little dust. Follow the steps below to clean the mouse regularly:
1.
Prepare cold or lukewarm water, neutral detergent, alcohol, two dry soft clothes, and cotton swabs.
2.
Make sure that the server is off-powered (the POWER LED goes off).
3.
Turn the mouse upside down, and rotate the mouse ball cover counterclockwise to remove it.
4.
Take out the ball from the mouse. Cover the bottom of the mouse with your hand, and turn your hand holding the
mouse (the mouse is on your palm with the button upward). The mouse ball is released onto your palm.
Mouse ball cover
Mouse ball
Roller
Bottom View
5.
Soak a soft cloth in neutral detergent that is diluted with cold or lukewarm water, and squeeze it firmly.
6.
Rub off stains on the mouse ball. Softly wipe the mouse ball with the cloth prepared in Step 5.
7.
Wipe the mouse ball with a dry soft cloth.
8.
Wipe three small rollers inside the mouse with a cotton swab soaked with alcohol. Wipe stains slowly and carefully
by rotating rollers with the tip of the cotton swab.
9.
Blow out any dust from the mouse. Protect your eyes from the dust.
10.
Put the mouse ball back into the mouse.
11.
Place the mouse ball cover, and rotate it clockwise until it is locked.