Service manual

Table 6-1 Troubleshooting checklist
Step
number
Verification step Possible problems Solutions
1 Is the power on?
When the device is
connected to a grounded
power source, the control
panel shows Hewlett-
Packard with both the
Ready and Attention lights
blinking. The control panel
will then display
Initializing and then
Ready, at which time only
the green light will be on.
No power due to failed power source,
cable, switch, or fuse.
1. Verify that the device 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 device directly into
the wall or into a different outlet.
4. Test the outlet or connect
another device to the outlet to
verify that the outlet is functioning.
2 Does Ready appear in
the device control panel?
The control panel should
function without error
messages.
Control panel shows an error. See Control panel messages
on page 108 for a list of common
messages that will help you correct
the error.
3 Do information pages
print?
Print a Configuration page.
Control panel displays an error
message.
See Control panel messages
on page 108 for a list of common
messages that will help you correct
the error.
Media does not move smoothly
through the device paper path.
Clean the paper path.
Poor print quality. For information, see General print
quality issues on page 139.
4 Does the device print
from the computer?
Connect the USB cable to
the device and the
computer. Use a word-
processing application to
send a print job to the
device.
Software is not installed correctly or an
error occurred during software
installation.
Uninstall and then reinstall the device
software. Verify that you are using the
correct installation procedure and the
correct port setting.
The cable is not connected correctly. Reconnect the cable.
An incorrect driver is selected. Select the proper driver.
Other devices are connected to the
USB port.
Disconnect the other devices and try
again to print.
There is a port driver problem in
Microsoft Windows.
Uninstall and then reinstall the device
software. Verify that you are using the
correct installation procedure and the
correct port setting.
If the error persists, see the support flyer that came in the device box.
ENWW Troubleshooting process 99