Dell Inspiron 640M - Manual (Page 97)

Troubleshooting
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C HECK THE A C ADAPTER — Check the AC adapter cable connections. If the AC adapter has a light,
ensure that the light is on.
C ONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET — Bypass power protection devices, power
strips, and the extension cable to verify that the computer turns on.
E LIMINATE POSSIBLE INTERFERENCE — Turn off nearby fans, fluorescent lights, halogen lamps, or other
appliances.
A DJUST THE POWER PROPERTIES — See "Power Management Modes" on page 39.
R ESEAT THE MEMORY MODULES — If the computer power light turns on but the display remains blank,
reinstall the memory modules (see "Optical Drives" on page 114).
Printer Problems
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.
E NSURE THAT THE PRINTER IS TURNED ON
C HECK THE PRINTER CABLE CONNECTIONS —
• See the printer documentation for cable connection information.
• Ensure that the printer cables are securely connected to the printer and the computer.
T EST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
V ERIFY THAT THE PRINTER IS RECOGNIZED BY W INDOWS —
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 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.
R EINSTALL THE PRINTER DRIVER — See the printer documentation for instructions
Scanner Problems
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 scanner, contact the scanner’s manufacturer.
C HECK THE PRINTER DOCUMENTATION — See the printer documentation for setup and troubleshooting
information.