74 AppendixFor the Optional Bluetooth Unit UsersSafety PrecautionsPlease read the safety warnings and cautions provided in this manual to ensure that you use your productsafely. Do not attempt to use the product in any way not described in this manual.WarningYou may cause an electric shock/fire or damage the printer if you ignore any of these safety precautions.CautionYou may cause injury or damage the printer if you ignore any of these safety precautions.WarningThis product emits low level magnetic flux. If you use a cardiac pacemaker and feel abnormalities,please be away from this product and consult your doctor.Do not use this product inside medical institutions such as hospitals or near electronic medicalequipment.Magnetic flux may affect the operation electronic medical equipment.Keep the product at least 22 cm (8.7 in) away from the pacemaker.Magnetic flux may affect the operation of the cardiac pacemaker.Do not use this product in aircraft.Magnetic flux may cause malfunction, and lead to accidents.Do not use the product near automatically controlled equipment such as automatic doors and firealarms.Radio waves may cause equipment malfunction, thus leading to accidents.Do not attempt to disassemble or modify the product.Doing so may cause injury, electric shock or fire.