Dell OptiPlex GX260 - Manual (Page 178)

1. Click the Start button, point to Settings, and then click Printers.
If the printer is listed, right-click the printer icon.
2. Click Properties, and then select the Details tab. For a parallel printer, ensure that the Print to the
following port(s): setting is LPT1 (Printer Port). For a USB printer, ensure that the Print to the
following port(s): setting is USB.
Reinstall the printer driver—
See " Reinstalling Drivers ."
Check for interrupt request conflicts—
See " Resolving Software and Hardware Incompatibilities ."
Serial or Parallel Device Problems
Fill out the Diagnostics Checklist as you complete these checks.
NOTE: If you are having a problem with a printer, see " Printer Problems ."
Consult the documentation for the device— See the device's documentation for troubleshooting
procedures.
Ensure that the device is turned on— Firmly press the device's power button.
Check the device cable connections— Check the connector for bent or broken pins. (It is normal for most
device cable connectors to have missing pins.) Ensure that the device cable is firmly connected to the
computer.
Test the device cable— Swap the device's cable with a cable that works properly.
Test the electrical outlet— Ensure that the electrical outlet is working by testing it with another device, such
as a lamp.
Eliminate interference— Relocate any electrical appliances on the same circuit or operating near the
computer that might cause interference. Remove these other possible causes of interference:
Power extension cables
Keyboard and mouse extension cables
Too many devices on a power strip
Multiple power strips connected to the same electrical outlet
Check the option setting— See the device's documentation for the recommended settings. Then enter
system setup and go to the Integrated Devices option settings. Ensure that the Serial Port setting (for a
serial device) or the Parallel Port setting (for a parallel device) matches the recommended settings.
Consult your software documentation— If the problem occurs with particular software, see the software
documentation for the recommended serial or parallel port settings. Ensure that the port settings match the
recommended settings.
Run the Dell Diagnostics— Reboot the computer and run the Dell Diagnostics . If any of the tests fail, contact
Dell .
Test the device— Swap the device with a comparable device that works properly.
Sound and Speaker Problems
Fill out the Diagnostics Checklist as you complete these checks.
NOTE: The volume control in some MP3 players overrides the Windows volume setting. If you have been listening to
MP3 songs, ensure that you did not turn the player volume down or off.