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Control panel message Description Recommended action
If a surge protector is being used, remove it.
Plug the product directly into the wall socket.
Use the power switch to turn the product on.
If the error persists, contact HP. See
www.hp.com/support/LJM1120 or the
support flyer that came in the product box.
52 Scanner Error
Turn off then on
The product has experienced a scanner
error.
Turn off the power by using the power switch,
wait at least 30 seconds, and then turn on the
power and wait for the product to initialize.
If a surge protector is being used, remove it.
Plug the product directly into the wall socket.
Use the power switch to turn the product on.
If the error persists, contact HP. See
www.hp.com/support/LJM1120 or the
support flyer that came in the product box.
54.1C Error
Turn off then on
The product has experienced an internal
hardware error.
Turn off the power by using the power switch,
wait at least 30 seconds, and then turn on the
power and wait for the product to initialize.
If a surge protector is being used, remove it.
Plug the product directly into the wall socket.
Use the power switch to turn the product on.
If the error persists, contact HP. See
www.hp.com/support/LJM1120 or the
support flyer that came in the product box.
Engine comm. Error The product has experienced an internal
hardware error.
1. Turn off the power by using the power
switch, and then wait at least 30
seconds.
2. If a surge protector is being used,
remove it. Plug the product directly into
the wall socket.
3. Turn on the power and wait for the
product to initialize.
If the error persists, contact HP. See
www.hp.com/support/LJM1120 or the
support flyer that came in the product box.
82 Chapter 11 Problem solve ENWW