How to Configure LPT1

Microsoft Windows uses the term line print terminal, or LPT, for the parallel port interface. Some desktop computers, and older notebook computers, have an LPT1 port used to connect printers, scanners, zip drives, external modems and other devices to the computer. LPT ports use one of the following modes to communicate with parallel port devices: standard printer port, enhanced parallel port and enhanced capability port. Configure LPT1 in the system setup program to enable the device to interface with the PC.

Instructions

1. Restart or power on the computer. Press "Pause Break" when the boot screen appears. Locate the following message: Press <Key> to Go to Setup.

2. Press "Pause Break" again, then press the keyboard combination as shown on the screen to enter setup.

3. Use the arrow pad to select the "Advanced tab," or go to "Integrated Peripherals" and press "Enter."

4. Select "SuperIO Device" from the list of options, if available, then press "Enter."

5. Highlight "Parallel Port" or "Onboard Parallel Port," then use the "+" and "-" keys to change the value to "Enabled."

6. Select "Parallel Port Mode," then press "+" and "-" to change the mode to "ECP" or "ECP/EPP." ECP stands for extended capabilities port, and EPP, for enhanced parallel port. ECP is designed for use by printers, and EPP, all other parallel port devices.

7. Use the arrow pad to highlight "Exit," or press "Esc" to return to the main menu.

8. Select "Save Changes and Exit," then press "Enter," "Y" and "Enter" to finish configuring LPT1.

Tips & Warnings

• Not all devices work with EPP or ECP mode. Select SPP if the device fails to work using the above settings. SPP stands for standard parallel port, which is the mode the first parallel port devices use to communicate with the computer.

References

• B&B Electronics: Parallel Port Explained
• Upgrading and Repairing PCs; Scott Mueller