HP Pro SFF 280 G9 Desktop PC Maintenance and Service Guide - Page 20

Cleaning the computer case, Cleaning the keyboard

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2. Turn off your device and unplug the power cord and other connected external devices. Remove any installed batteries from items such as wireless keyboards. CAUTION: To prevent electric shock or damage to components, never clean a product while it is turned on or plugged in. 3. Moisten a microfiber cloth with a mixture of 70% isopropyl alcohol and 30% water. The cloth should be moist, but not dripping wet. CAUTION: Do not use any of the following chemicals or any solutions that contain them, including spray-based surface cleaners: bleach, peroxides (including hydrogen peroxide), acetone, ammonia, ethyl alcohol, methylene chloride, or any petroleum-based materials, such as gasoline, paint thinner, benzene, or toluene. IMPORTANT: To avoid damaging the surface, avoid abrasive cloths, towels, and paper towels. 4. Wipe the exterior of the product gently with the moistened cloth. IMPORTANT: Keep liquids away from the product. Avoid getting moisture in any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do not spray liquids directly on the product. Do not use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide or bleach that might damage the finish. 5. Start with the display (if applicable). Wipe carefully in one direction, and move from the top of the display to the bottom. Finish with any flexible cables, like power cord, keyboard cable, and USB cables. 6. Be sure that surfaces have completely air-dried before turning the device on after cleaning. 7. Discard the gloves after each cleaning. Clean your hands immediately after you remove the gloves. Cleaning the computer case Follow all safety precautions before cleaning the computer case. To clean the computer case, follow these procedures: ● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab. ● For stronger stains, use a mild dishwashing 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 needed because the alcohol evaporates quickly and does not leave a residue. ● After cleaning, always wipe the unit with a clean, lint-free cloth. ● Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and limit the airflow. Cleaning the keyboard Use this information to properly clean the keyboard. Follow all safety precautions before cleaning the keyboard. To clean the tops of the keys or the keyboard body, follow the procedures described in Cleaning the computer case on page 13. Cleaning the computer case 13

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2.
Turn off your device and unplug the power cord and other connected external devices. Remove any
installed batteries from items such as wireless keyboards.
CAUTION:
To prevent electric shock or damage to components, never clean a product while it is turned
on or plugged in.
3.
Moisten a microfiber cloth with a mixture of 70% isopropyl alcohol and 30% water. The cloth should be
moist, but not dripping wet.
CAUTION:
Do not use any of the following chemicals or any solutions that contain them, including
spray-based surface cleaners: bleach, peroxides (including hydrogen peroxide), acetone, ammonia, ethyl
alcohol, methylene chloride, or any petroleum-based materials, such as gasoline, paint thinner, benzene,
or toluene.
IMPORTANT:
To avoid damaging the surface, avoid abrasive cloths, towels, and paper towels.
4.
Wipe the exterior of the product gently with the moistened cloth.
IMPORTANT:
Keep liquids away from the product. Avoid getting moisture in any openings. If liquid
makes its way inside your HP product, it can cause damage to the product. Do not spray liquids directly
on the product. Do not use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide
or bleach that might damage the finish.
5.
Start with the display (if applicable). Wipe carefully in one direction, and move from the top of the
display to the bottom. Finish with any flexible cables, like power cord, keyboard cable, and USB cables.
6.
Be sure that surfaces have completely air-dried before turning the device on after cleaning.
7.
Discard the gloves after each cleaning. Clean your hands immediately after you remove the gloves.
Cleaning the computer case
Follow all safety precautions before cleaning the computer case.
To clean the computer case, follow these procedures:
●
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
●
For stronger stains, use a mild dishwashing 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 needed because the alcohol evaporates
quickly and does not leave a residue.
●
After cleaning, always wipe the unit with a clean, lint-free cloth.
●
Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and
limit the airflow.
Cleaning the keyboard
Use this information to properly clean the keyboard. Follow all safety precautions before cleaning the
keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in
Cleaning the computer
case
on page
13
.
Cleaning the computer case
13