ZKTeco ZK55 Series, Руководство пользователя

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ZK55 Series User Manual
47
8.
LCD Surface Cleaning
1. How to clean the LCD surface properly?

Do not spray any liquids on the LCD screen directly, and do not use paper towels,
this can cause the LCD screen to become scratched.

Always apply the solution to your cloth first, not directly to the parts you are
cleaning. You want to avoid dripping the solution directly into your computer or
laptop.

Stroke the cloth across the display in one direction, moving from the top of the
display to the bottom.
2. What are some of the basic supplies needed to clean an LCD screen?

A soft cotton cloth. When cleaning the LCD screen it is important to use a soft
cotton cloth, rather than an old rag. Some materials, such as paper towels, could
cause scratches and damage the LCD screen.

Solution of water and isopropyl alcohol. This solution can be used along with the
soft cotton cloth.

Computer wipes. Only use these if they specifically state on the package they are
designed for LCD laptop screens. Computer wipes can come in handy for fast
clean-ups or when you want to avoid mixing up a cleaning solution yourself.
3. What types of cleaners are acceptable?

Water

Vinegar (mixed with water)

Isopropyl Alcohol
NOTICE: The following cleaners are unacceptable:

Acetone

Ethyl alcohol

Ethyl acid

Ammonia

Methyl chloride