Dell Inspiron 3800 - Manual (Page 33)

Solving Problems 33
Scanner Problems
Touch Pad Problems
External Keyboard Problems
Unexpected Characters
C HE C K T H E P O W E R C A B L E C O N NE C T I ON — Ensure that the scanner power
cable is firmly connected to a working electrical power source and that the
scanner is turned on.
C HE C K T H E S C A NN E R C A B L E C O N NE C T IO N — Ensure that the scanner
cable is firmly connected to the computer and to the scanner.
U N LO C K THE S C A NN E R — Ensure that your scanner is unlocked if it has a
locking tab or button.
R E I NS T AL L THE S C A NN E R D R IV E R — See the scanner documentation for
instructions.
C HE C K T H E T O U CH PA D S E T T I N G S — Click the Start button, point to
Settings, click Control Panel, and then double-click the Mouse icon. Try
adjusting the settings.
D IS CO N NE C T THE KE Y BO A R D CA B LE — Shut down the computer (see
page 16). Disconnect the keyboard cable and check the cable connector for bent
or broken pins.
D IS AB L E T H E N UM ER I C K E YP A D — Press the <Num Lk> key to disable the
numeric keypad. Verify that the numbers lock light is not lit.