54General Guidelines Do not expose your skin to the Tablet PC when operating it in a very hotor cold environment. Do not place heavy objects on top of the Tablet PC as this may damagethe display. The screen surface is easily scratched. Avoid touching it with a sharpobject such as a pen or pencil. LCD image sticking occurs when a fixed pattern is displayed on thescreen for a prolonged period of time. You can avoid the problem bylimiting the amount of static content on the display. It is recommendedthat you use a screen saver or turn off the display when it is not in use. To maximize the life of the backlight in the display, allow the backlightto automatically turn off as a result of power management.Cleaning Guidelines Never clean the Tablet PC with its power on. Use a soft cloth moistened with water or a non-alkaline detergent towipe the exterior of the Tablet PC. Gently wipe the display with a soft, lint-free cloth. If water or liquid is split onto the Tablet PC, wipe it dry and clean whenpossible. Though your Tablet PC is water-proof, do not leave the TabletPC wet when you can dry it. If the Tablet PC gets wet where the temperature is 0°C (32°F) or below,freeze damage may occur. Make sure to dry the wet Tablet PC.Battery Pack Guidelines Recharge the battery pack when it is nearly discharged. When recharging,make sure that the battery pack is fully charged. Doing so may avoidharm to the battery pack.