Apple ImageWriter II - Manual (Page 45)

Warning
This equipment has been certified to comply with the limits for a Class B computing device, pursuant to
Subpart J of Part 15 of FCC Rules. See instructions if interference to radio or television reception is
suspected.
Radio and Television Interference
The equipment described in this manual generates and uses radio-frequency energy. If it is not installed
and used properly—that is, in strict accordance with our instructions—it may cause interference with radio
and television reception.
This equipment has been tested and complies with the limits for a Class B computing device in
accordance with the specifications in Subpart J, Part 15, of FCC rules. These rules are designed to
provide reasonable protection against such interference in a residential installation. However, there is no
guarantee that the interference will not occur in a particular installation, especially if a “rabbit ear” television
antenna is used. (A “rabbit ear” antenna is the telescoping-rod type usually contained on television
receivers.)
You can determine whether your computer is causing interference by turning it off. If the interference
stops, it was probably caused by the computer or its peripherals. To further isolate the problem,
disconnect the peripheral devices and their input/output cables one at a time. If the interference stops, it
was caused by either the peripheral device or the I/O cable. These devices usually require shielded I/O
cables. For Apple peripherals, you can obtain the proper shielded cable from your dealer. For non-Apple
peripheral devices, contact the manufacturer or dealer for assistance.
If your computer does cause interference to radio or television reception, you can try to correct the
interference by using one or more of the following measures:
Turn the television or radio antenna until the interference stops.
Move the computer to one side or the other of the television or radio.
Move the computer farther away from the television or radio.
Plug the computer into an outlet that is on a different circuit than the television or radio. (That is, make
certain the computer and the radio or television set are on circuits controlled by different circuit breakers
or fuses.)
Consider installing a rooftop television antenna with coaxial cable lead-in between the antenna and
television.
If necessary, you should consult your Apple-authorized dealer or an experienced radio/television
technician for additional suggestions.