Nikon 4804 R1 Wireless Close-Up Speedlight System - Manual (Page 124)

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Tips on Speedlight care
Cleaning
• Use a blower brush to remove dirt and dust from the Speedlight and clean it
with a soft, clean cloth. After using the Speedlight near saltwater, wipe the
flash unit with a soft, clean cloth moistened slightly with tap water to remove
the salt, then dry it with a dry cloth.
• On rare occasions, the LCD may turn on or turn dark due to static electricity.
This is not a malfunction. The display will soon return to normal.
• Do not drop the Speedlight or knock it on a hard surface, as this may damage
its precision mechanisms. Do not apply strong pressure to the LCD panel.
Storage
• Store the Speedlight in a cool, dry place to prevent malfunctions due to high
humidity, as well as the growth of mold or mildew.
• Keep the Speedlight away from chemicals such as camphor or naphthalene.
Avoid exposing the Speedlight to magnetic waves from televisions or radios.
• Do not use or leave the Speedlight in locations subject to high temperatures
such as near a heater or stove, as this may cause damage.
• When not using the Speedlight for more than two weeks, be sure to remove the
battery to prevent damage due to battery leakage.
• Take the Speedlight out once a month, insert the battery, and fire the unit
several times to reform the capacitor.
• When the Speedlight is stored together with a desiccant, renew the desiccant
occasionally.
Operating location
• An extreme temperature change can cause condensation to form inside the
Speedlight. When exposing the Speedlight to high temperatures from very low
temperatures, or vice versa, place it inside an airtight container such as a
plastic bag. Leave it inside the container for a while before gradually exposing
the Speedlight to the outside temperature.
• Avoid exposing the Speedlight to strong magnetic or radio waves from
televisions or high voltage power transmission towers, as this may cause it to
malfunction.
WARNING
Never use thinner, benzene, or other active agents for
cleaning the Speedlight, as this may damage the
Speedlight or cause it to catch fire. Using these agents
may also impair your health.