HP ProSignia 120 Maintenance And Service Manual
Download Maintenance and service manual of HP 140 All in One Printer, Copier for Free or View it Online on All-Guides.com. This version of HP 140 Manual compatible with such list of devices, as: 140, 155, 160, 170
Brand: HP
Category: All in One Printer , Copier , Laptop , Printer
Type: Maintenance and service manual
Model: HP 140 , HP 155 , HP 160 , HP 170
Pages: 144 (2.84 Mb)
Troubleshooting 2-25
Solving Infrared Connection Problems
NOTE: The computer is shipped with the infrared port disabled. The port must be
enabled each time the computer is started or restarted. Follow these steps to enable the
infrared port.
1. Click Start ⇒ Settings ⇒ Control Panel.
2. Double click the Infrared icon.
3. Select the Options tab.
4. Check the box labeled Enable Infrared Communications to select the Com3 port.
5. Click OK. The infrared icon appears on the task bar.
NOTE: Windows NT does not support infrared communication.
Table 2-22
Solving Infrared Connection Problems
Problem Cause Recommended Action(s)
Cannot link with another
computer.
Interrupt request (IRQ) conflict Check IRQ assignments for conflicts and
reassign as necessary.
Baud rate conflict Select the same baud rate for both
computers.
# bits conflict Select the same “#bits” setting for both
computers.
Stop bit conflict Select the same stop byte for both
computers.
Parity conflict Select the same parity setting for both
computers.
Data transmission problem Direct sunlight, fluorescent
light, or flashing incandescent
light is close to the infrared
connections.
Remove the interfering light sources.
Interference from other
infrared devices
Keep remote control units and other infrared
devices away from the infrared connections.
Physical obstruction Do not place objects between the two units
that will interfere with a line-of-sight data
transmission.
Movement Do not move either unit during data
transmission.
Orientation Adjust devices so that they point within 30
degrees of each other.
Distance Verify that devices are not more than 3 feet
(1 meter) apart.
Cannot connect at 4 MB/sec Fast IR driver not installed Fast-IR is not preinstalled. Download FAST-
IR driver from Compaq web site and install.