Chapter 3. Maintaining The Ibm 4820; Maximizing Your Comfort; Cleaning The Touch Screen; Using The Brightness Controls - IBM 4820 Planning, Installation And Service Manual

January 14, 2005

Chapter 3. Maintaining the IBM 4820

Maximizing your comfort

Before you begin using your display, follow these tips to ensure that you are
comfortable:
v Keep your head in a comfortable viewing position.
v Maintain a comfortable viewing distance.
v Position the display to avoid glare or reflection from overhead lighting or
v Keep the screen clean from dust and dirt by regularly cleaning the surface with
v Set the brightness levels that allow you to see clearly.
v With your finger, press the touch screen only as hard as necessary for use. Do
v Do not use a pen to press the touch screen.

Cleaning the touch screen

Keeping the touch screen free from dirt and dust allows the touch sensor to
operate efficiently. Follow these guidelines:
Note: Before cleaning the touch screen, power off the 4820 SurePoint Solution.
v Use a soft, dry cloth with isopropyl alcohol or any non abrasive and non
v Wipe gently across the surface.
v Allow a few minutes for the surface to dry before using.

Using the brightness controls

Pressing the plus (+) or the minus (−) button adjusts the screen brightness.
Figure 3-1. Brightness menu
© Copyright IBM Corp. 1999, 2004
For all models
Information in this section is for all models of the 4820 SurePoint Solution.
outside sources of light.
a soft, dry cloth.
not pound on the touch screen.
Note: Except for Models 2xx and 5xx, you cannot activate the touch sensors by
any pointing aid except your finger.
ammonia based cleaner.
Attention: Do not apply cleaning solution directly to the screen. Always spray
the cleaner on a clean cloth and then wipe the screen.
Brightness
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− |_______________________________________| +
Adjust
3-1