Casio IT-300 Series User Manual

Also see for IT-300 Series: Important notes

E-8Operating PrecautionsYour Handheld Terminal and its options are precision. Improper operation or roughhandling can cause problems with data storage and other problems. Note and observethe following precautions to ensure proper operation.Do not leave dead battery pack in the Handheld Terminal for a long period.Dead battery pack can leak, leading to malfunction and damage to the HandheldTerminal.Stop or avoid using the Handheld Terminal and its options in areas andconditions subject to the following.— Large amounts of static electricity— Extreme heat or cold or humidity— Sudden temperature change— Large amount of dust— After large amount of rain or water falls on the Handheld Terminal— Pressing the screen or keys with excessive force when using in the rainUse the touch panel by touching it lightly with your finger.Do not press down hard on the touch panel or press it with pointed objects (ballpointpens, fingernails, etc.) as this could scratch or damage the touch panel and lead tomalfunctions.The touch panel may not operate correctly in the following situations:— When a foreign object is stuck to or touching the panel— When a sticker or protective sheet other than the special sheet provided is stuck tothe touch panel— When your finger or the touch panel is wet— When you use it while wearing glovesDead PixelsThe LCD panel employed in this product uses high precision and substantial numberof components which commonly cause a small number of the pixels not to light orto remain lit all the time. This is due to the characteristics of LCD panel yield inaccuracy over 99.99% and permissible.•••••