Infrared Problems - HP OmniBook 4100 Reference Manual

Troubleshooting
Solving Problems

Infrared Problems

If you have problems with infrared communications
• Windows NT 4.0 does not support infrared devices.
• Make sure the infrared light path is not blocked.
• Line up the OmniBook's infrared port and the other infrared port in as straight a
line as possible. The two ports should be no more than 1 meter apart, with no
obstructions in between. Noise from nearby equipment can cause transmission
errors.
• Check settings in BIOS Setup utility.
1. From the Start menu, shut down, then restart the OmniBook.
2. When you see the HP logo, press F2 to enter the BIOS Setup utility.
3. From the System Devices menu, check that Infrared Port is enabled.
4. Press F10 to Save and Exit the BIOS Setup utility.
• For infrared communications, an infrared driver must be installed and a BIOS
Setup setting must be enabled. See page 1-73.
• Check that only one application is using the infrared port.
• Standard IrDA and fast-IrDA are incompatible (they use different drivers).
• For fast-IrDA, check for DMA conflict with ECP parallel port.
• Remove any PC Cards. An infrared IRQ conflict is possible if two PC Cards are
plugged in at the same time.
If an infrared printer doesn't print
• Windows NT 4.0 does not support infrared communication.
• Make sure the infrared light path is not blocked.
• An infrared driver must be installed and the BIOS Setup setting must be enabled.
For details, refer to the driver's Readme file located in \OmniBook\Drivers.
• In Windows Help, use the Print Troubleshooter.
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