Dell 540 - USB Photo Printer 540 Podręcznik użytkownika - Strona 32
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Regulatory Information
Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or conducted along
power or signal leads, that endangers the functioning of a radio navigation or other safety service or
seriously degrades, obstructs, or repeatedly interrupts a licensed radio communications service. Radio
communications services include but are not limited to AM/FM commercial broadcast, television, cellular
services, radar, air-traffic control, pager, and Personal Communication Services (PCS). These licensed
services, along with unintentional radiators such as digital devices, including computers, contribute to the
electromagnetic environment.
Electromagnetic Compatibility is the ability of items of electronic equipment to function properly together in
the electronic environment. While this computer has been designed and determined to be compliant with
regulatory agency limits for EMI, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause interference with radio communications services, which can be
determined by turning the equipment off and on, you are encouraged to try to correct the interference by
one or more of the following measures:
Reorient the receiving antenna.
Relocate the computer with respect to the receiver.
Move the computer away from the receiver.
Plug the computer into a different outlet so that the computer and the receiver are on different branch
circuits.
If necessary, consult a Dell Technical Support representative or an experienced radio/television technician
for additional suggestions.
Dell™ computers are designed, tested, and classified for their intended electromagnetic environment. These
electromagnetic environment classifications generally refer to the following harmonized definitions:
Class A is typically for business or industrial environments.
Class B is typically for residential environments.
Information Technology Equipment (ITE), including devices, expansion cards, printers, input/output (I/O)
devices, monitors, and so on, that are integrated into or connected to the computer should match the
electromagnetic environment classification of the computer.
A Notice About Shielded Signal Cables: Use only shielded cables for connecting devices to any Dell
device to reduce the possibility of interference with radio communications services. Using
shielded cables ensures that you maintain the appropriate Electromagnetic Compatibility
classification for the intended environment. For parallel printers, a cable is available from Dell. If
you prefer, you can order a cable from Dell on the World Wide Web at
accessories.us.dell.com/sna/category.asp?category_id=4117.