Appendix 155
4
Blow carefully into the ball cage or use a can of compressed air to dislodge
dust and lint.
5
If the rollers inside the ball cage are dirty, clean the rollers with a cotton
swab moistened lightly with isopropyl alcohol.
6
Recenter the rollers in their channels if they are misaligned. Ensure that
fluff from the swab is not left on the rollers.
7
Replace the ball and retainer ring, and turn the retainer ring clockwise
until it clicks into place.
Cleaning an Optical Mouse
Clean the outside casing of the mouse with a cloth moistened with a mild
cleaning solution.
Floppy Drive
NOTICE: Do not attempt to clean drive heads with a swab. You might accidentally
misalign the heads which prevents the drive from operating.
Clean your floppy drive using a commercially available cleaning kit. These
kits contain pretreated floppies to remove contaminants that accumulate
during normal operation.
CDs and DVDs
NOTICE: Always use compressed air to clean the lens in the CD/DVD drive, and
follow the instructions that come with the compressed-air product. Never touch the
lens in the drive.
If you notice problems, such as skipping, with the playback quality of your
CDs or DVDs, try cleaning the discs.
1
Hold the disc by its outer edge. You can also touch the inside edge of the
center hole.
NOTICE: To help prevent damage to the surface, do not wipe in a circular motion
around the disc.
2
With a soft, lint-free cloth, gently wipe the bottom of the disc (the
unlabeled side) in a straight line from the center to the outer edge of the
disc.
For stubborn dirt, try using water or a diluted solution of water and mild
soap. You can also purchase commercial products that clean discs and
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