Ensuring Sufficient Power For Your Computer; Printer Problems - Dell Inspiron 640M Owner's Manual

H E C K T H E A D A P T E R
C A C
ensure that the light is on.
C O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T
strips, and the extension cable to verify that the computer turns on.
L I M I N A T E P O S S I B L E I N T E R F E R E N C E
E
appliances.
A D J U S T T H E P O W E R P R O P E R T I E S
R E S E A T T H E M E M O R Y M O D U L E S
reinstall the memory modules (see "Optical Drives" on page 114).

Ensuring Sufficient Power for Your Computer

Your computer is designed to use the 90-W AC adapter; for optimum system performance, you should
always use this adapter.
The 65-W AC adapters used in other Dell™ portable computers can be used with your computer, but
they will decrease system performance. Using less-powerful AC adapters, including the 65-W AC adapter,
will cause you to receive a WARNING message.

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 N S U R E T H A T T H E P R I N T E R I S T U R N E D O N
C H E C K T H E P R I N T E R C A B L E C O N N E C T I O N S
• See the printer documentation for cable connection information.
• Ensure that the printer cables are securely connected to the printer and the computer.
T E S T T H E E L E C T R I C A L O U T L E T
device, such as a lamp.
E R I F Y T H A T T H E P R I N T E R I S R E C O G N I Z E D B Y
V
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 E I N S T A L L T H E P R I N T E R D R I V E R
Check the AC adapter cable connections. If the AC adapter has a light,
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Turn off nearby fans, fluorescent lights, halogen lamps, or other
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See "Power Management Modes" on page 39.
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If the computer power light turns on but the display remains blank,
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Ensure that the electrical outlet is working by testing it with another
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I N D O W S
W
See the printer documentation for instructions
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Bypass power protection devices, power
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97
Troubleshooting