HP laserjet 3390, 3392 all-in-one Manuale Di Servizio

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Troubleshooting process
Troubleshooting checklist
Follow these steps when trying to solve a problem with the all-in-one.
Step
number
Verification step
Possible problems
Solutions
1
Is the power on?
When the all-in-one is
connected to a grounded
power source and is turned on,
the control panel shows
Hewlett Packard with moving
cursors indicating that the
firmware code is loading, and
the main motor rotates for
approximately 45 to 60
seconds. When the firmware is
done loading, Scanner bulb
warming up
 might appear on
the control-panel display, and
the scan head moves back and
forth for 10 to 15 seconds. If
you lift the scanner cover, you
will see that the scanner bulb is
lit. Near the end of this time, the
automatic document feeder
(ADF) motor turns on for about
two seconds.
No power as a result of a failed power source,
cable, switch, or fuse
1.
Verify that the all-in-one is plugged in.
2.
Verify that the power cable is functional
and that the power switch is on.
3.
Check the power source by plugging
the all-in-one directly into the wall or
into a different outlet.
Motor does not start
1.
Verify that the all-in-one is plugged into
a working electrical receptacle.
2.
Verify that the print cartridge is
installed correctly. Follow the
instructions on the control panel to
remove and replace the cartridge.
3.
Verify that the top cover is closed.
ADF motor does not start
Open the ADF cover and remove any
orange shipping tape inside the ADF.
Verify that the ADF connector is connected
correctly to the scanner.
If the ADF motor still does not rotate, replace
the ADF. See 
Scanner bulb does not light
If the scanner bulb does not light, verify that
the wire-harness connectors from the
scanner to the formatter are connected
correctly.
If the error persists, replace the following
components one at a time until the problem
is resolved: scanner assembly, formatter.
See 
and 
2
Does Ready appear in the all-
in-one control panel?
The control panel should
function without error
messages.
Control panel shows an error
See 
 for a list of common
messages that will help you correct the
error.
3
Do information pages print?
Print a Configuration page.
Error message appears on the control-panel
display
See 
 for a list of common
messages that will help you correct the
error.
Media does not move smoothly through the
all-in-one paper path
Make sure that media that meets
HP specifications. See 
178
Chapter 6   Troubleshooting
ENWW