Dell S2409WFP Monitor - Manual (Page 10)

In almost every case, these fixed pixels are hard to see and do not detract from display quality or usability. A display with 1 to 5 fixed pixels is considered
normal and within competitive standards. For more information, see Dell Support site at: support.dell.com.
Maintenance Guidelines
Caring for Your Monitor
For best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor:
l To clean your antistatic screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the
antistatic coating. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed air.
l Use a lightly-dampened, warm cloth to clean the monitor. Avoid using detergent of any kind as some detergents leave a milky film on the monitor.
l If you notice a white powder when you unpack your monitor, wipe it off with a cloth.
l Handle your monitor with care as dark -colored monitors may scratch and show white scuff marks more than lighter-colored monitors.
l To help maintain the best image quality on your monitor, use a dynamically changing screen saver and turn off your monitor when not in use.
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CAUTION: Read and follow the Safety Instructions before cleaning the
monitor.
CAUTION: Before cleaning the monitor, unplug the monitor from the electrical
outlet.