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Appendix C Routine Care; General Cleaning Safety Precautions; Cleaning The Workstation Case; Cleaning The Keyboard - HP Z400 Maintenance And Service Manual

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Routine Care

General cleaning safety precautions

Never use solvents or flammable solutions to clean the workstation.
Never immerse any component in water or cleaning solutions; apply any liquids to a clean cloth
and then use the cloth on the component.
Always unplug the workstation before cleaning the keyboard, mouse, or air vents.
Always disconnect the keyboard before cleaning it.
Wear safety glasses equipped with side shields when cleaning the keyboard.

Cleaning the workstation case

Follow the safety precautions presented
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
For stronger stains, use a mild dish washing liquid diluted with water. Rinse well by wiping it with
a cloth or swab dampened with clear water.
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is required because the alcohol
evaporates quickly and does not leave a residue.
After cleaning, always wipe the workstation with a clean, lint-free cloth.
Occasionally, clean the air vents on the workstation. Lint and other foreign matter can block the
vents and limit the airflow.

Cleaning the keyboard

under the keys.
Follow the safety precautions presented
Visible debris underneath or between the keys can be removed by vacuuming or shaking.
Canned, pressurized air can be used to clean debris from under the keys. Use caution because
too much air pressure can dislodge lubricants applied under the wide keys.
If you remove a key, use a specially designed key remover to prevent damage to the keys. This
tool is available from many electronic supply outlets.
are improperly removed or installed, the keyboard might not function properly.
Use safety glasses equipped with side shields before attempting to clean debris from
Never remove a wide key (like the space bar key) from the keyboard. If these keys
(Service considerations on page
(Service considerations on page
General cleaning safety precautions
66) before cleaning the
66) before cleaning the


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