User’s Manual
Ports
Problem:
Special devices that I connect to the Parallel Port do not
function properly.
Action:
You may need to change communication modes in the Setup
Program for this device. Some devices require two-way com-
munication through the printer port to operate properly. You
can choose two-way communication for the port in the I/O
device configuration sub-menu located within the Advanced
menu of the Setup program. Choose “Bi-Directional”,
“EPP”or “ECP”. ECP is the preferred choice, but you will
need to determine if your device will support it.
USB (Universal Serial Bus)
Problem:
USB causes rapid consumption of battery life.
Action:
Make sure that your USB device has its own power source
(such as a printer) or a powered hub.
Problem:
USB device does not function properly.
Actions:
• Make sure the USB connection is secure. If you have
several devices chained together, make sure that all
connections are secure.
• Some devices must be the primary device in a chain.
Check the documentation that came with the device
and arrange your devices as needed.
• If you are using a hub, make sure that it is powered one
and properly connected to your system.
• Devices in a chain might need to have their power on to
permit the USB signal to pass through. Make sure all USB
devices that are connected are powered on (if they have
their own power source).
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Summary of Contents for N4
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