Dell Latitude 120L - Manual (Page 99)

Test the electrical outlet —
Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Check the AC adapter —
Check the AC adapter cable connections. If the AC adapter has a light, ensure that the light is on.
Connect the computer directly to an electrical outlet —
Bypass power protection devices, power strips, and the extension cable to verify that the computer turns on.
Eliminate possible interference —
Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances.
Adjust the power properties —
See Power Management Modes .
Reseat the memory modules —
If the computer power light turns on but the display remains blank, reinstall the memory modules. See Memory .
Ensuring Sufficient Power for Your Computer
Your computer is designed to use the 65-W AC adapter; for optimum system performance, you should always use this adapter.
Printer Problems
Fill out the Diagnostics Checklist as you complete these checks.
Ensure that the printer is turned on.
Check the printer cable connections —
l See the printer documentation for cable connection information.
l Ensure that the printer cables are securely connected to the printer and the computer.
Test the electrical outlet —
Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Verify that the printer is recognized by Windows —
1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2. Click View installed printers or fax printers.
If the printer is listed, right-click the printer icon.
3. Click Properties and click the Ports tab. For a USB printer, ensure that the Print to the following port(s): setting is USB.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTE: If you need technical assistance for your printer, contact the printer's manufacturer.