HP LaserJet M4349 Multifunction Printer series - Manual (Page 179)

Problem-solving flowchart
Symptom Check Possible causes Possible solutions
The control-panel display is
blank, no lights are lit, and the
device makes no sounds from the
motors. Is the power on? The power switch might be off.
The power cord might be
unplugged.
The power outlet might not be
working correctly.
The internal power supply might
have failed.
1. Make sure the device is
plugged in and the power
switch is on.
2. Test the power outlet by
plugging the device into an
outlet that is known to work.
3. If the problem persists,
contact your dealer for
support.
The control panel indicates an
error. Do error messages appear on the
control-panel display? Several conditions can cause an
error message to appear. 1. Follow the instructions on
the control panel to resolve
the problem.
2. For more information, see
Control-panel messages
on page 174
.
3. If the problem persists,
contact your dealer for
support.
Are the main features, such as
Copy and E-mail , inactive on the
touchscreen?
The scanner shipping lock might
be in the locked position. Make sure the scanner shipping
lock is unlocked. The scanner
lock is on the left side of the
device, underneath the scanner.
Paper-feed problems Do jams occur frequently? The media does not meet
specifications.
Paper remains in the device after
clearing a previous jam.
Some of the shipping tape,
cardboard, or shipping locks are
still in the device.
The maintenance kit items might
be ready for replacement.
1. Make sure the media meets
specifications for the
device. See
Select print
media on page 72 .
2. Open all doors and trays
and check for jammed
media. See
Clear jams
on page 184 .
3. Make sure the print
cartridge is installed
correctly. See
Change the
print cartridge on page 154 .
4. Install the device
maintenance kit. See
Order
parts, accessories, and
supplies on page 228
.
5. If the problem persists,
contact your dealer for
support.
ENWW Problem-solving flowchart 165