Panasonic Toughbook CF-19KHRAG2M Reference Manual page 9

Touchscreen
If the soft cloth is dirty, it may be ineffective in cleaning the touchscreen, and in fact may cause dirt to adhere to the touch-
screen.
Check the following to prevent the surface of the touchscreen from being scratched
Are you using your finger or a stylus to operate the touchscreen?
Is the surface clean?
Is the soft cloth clean?
Are you using the stylus with the tip extended?
Is the tip of the stylus clean?
Is your finger clean?
Things to keep in mind when using the touchscreen
Do not touch the screen outside of the LCD display area
The touchscreen input area is defined by the LCD display screen. Touching the screen outside of the display area may
result malfunctions or damage to the touchscreen.
Do not apply excessive force to the touchscreen
Do not lift the computer while holding the LCD screen, or allow the screen to be twisted. Do not place any objects on the
LCD screen. Any of the above may cause the touchscreen glass to break, or may damage the LCD screen.
Operation response may be slower in low temperature environments
The touchscreen may respond to operations more slowly when using the computer in temperatures less than 5°C, but this
is not a malfunction. Response time will return to normal when the computer is returned to room temperature.
If the cursor jumps to a location other than where the screen was touched, or if
the LCD resolution changes, recalibrate the touchscreen
Perform the procedure of "Touchscreen Calibration" ( page 10).
9