Dell Inspiron 4000 Service Manual page 47

Scanner Problems
Check the power cable connection—
source and that the scanner is turned on.
Check the scanner cable connection—
scanner.
Unlock the scanner— Ensure that your scanner is unlocked if it has a locking tab or button.
Reinstall the scanner driver— See the scanner documentation for instructions.
Touch Pad Problems
Check the touch pad settings— Click the Start button, point to Settings, click Control Panel, and then double-click the
Mouse icon. Try adjusting the settings.
External Keyboard Problems
HINT: If you connect an external PS/2 keyboard or keypad to the computer, the numeric keypad on the integrated keyboard is disabled. If you connect
an external USB keyboard or keypad to the computer, the numeric keypad remains enabled.
Disconnect the keyboard cable—
bent or broken pins.
Unexpected Characters
Disable the numeric keypad— Press the <Num Lk> key to disable the numeric keypad. Verify that the numbers lock light is
not lit.
Drive Problems
If you cannot save a file to a floppy disk
HINT: For information on saving files to a floppy disk, see the
Ensure that Windows recognizes the drive—
full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows from
recognizing the drive.
Cannot save files to a floppy disk—
figure.
Test the drive with another floppy disk—
is defective.
Ensure that the scanner power cable is firmly connected to a working electrical power
Ensure that the scanner cable is firmly connected to the computer and to the
Shut down the computer. Disconnect the keyboard cable and check the cable connector for
Tell Me How
Double-click the My Computer icon. If the floppy drive is not listed, perform a
Ensure that the floppy disk is not full or write-protected (locked). See the following
Insert another floppy disk to eliminate the possibility that the original floppy disk
help file.