HP LaserJet M4345xm User Manual

Problem-solving flowchart
SymptomCheckPossible causesPossible 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...

SymptomCheckPossible causesPossible solutions
 Do original documents feed
correctly through the ADF?The original document might be
printed on media that is too light
or too heavy for the ADF.
The ADF rollers and separation
pad might be dirty.
The ADF maintenance kit parts
might need to be replaced.1.If the original document is
printed on very heavy or
light media, copy by using
the flatbed glass.
2. Clean the ADF rollers and
separation pad. See 
Cleanthe document feeder .
3. Install the ADF
maintenance...

SymptomCheckPossible causesPossible solutions
Order parts, accessories,and supplies.
4. If the problem persists,
contact HP Customer
Care. See 
HP CustomerCare.
General printing problemsCan you print documents from a
computer?The computer cable might be
defective.
The printer driver might need to
be reinstalled.1. Try printing a configuration
page at the control panel.
Touch Network Address
and then touch Print.
If the page prints, the
problem is with the cable
or the driver.
2. Reconnect the cables.
3....

SymptomCheckPossible causesPossible solutions
Does an “E-mail gateway not
responding” message appear
on the control panel?
 Are you able to change the
“From” e-mail address?The device might be configured
so that the “From” e-mail
address cannot be changed.
The device might require you to
sign in before you can change
the “From” e-mail address.Use the embedded Web server
to change these settings. See
Embedded Web server.
 Are you able to change the file
type or the color setting for e-
mail...

SymptomCheckPossible causesPossible solutions
 Is the Fax feature configured
correctly but you cannot send
faxes?You must use the phone cord
that came with the device.
The phone cord might not be
connected securely or the
telephone line might not be
working.
You might have connected the
device to a digital phone line
instead of an analog phone line.
The fax accessory requires an
analog phone line.See Solve fax problems .
1. Always use the phone
cord that came with the
device.
2. Test the telephone line...

Solve general device problems
Device selects media from the wrong tray.
Cause
Solution
The tray selection in the software program might be incorrect.For many software programs, the paper tray selection is
found on the Page Setup menu within the program.
Remove any media in other trays to make the device select
from the correct tray.
For Macintosh computers, use the HPPrinter Utility to
change the priority of the tray.
The configured size does not match the size of the media
that is loaded in the tray....

Print job is extremely slow.
Cause
Solution
The job might be very complex.
The maximum speed of the device cannot be exceeded
even when more memory is added.
Printing speeds might be automatically reduced when
printing on custom-sized media.
Note: Slower speeds are expected when printing on narrow
paper, when printing from tray 1, or when using the High2
fuser mode.Reduce the complexity of the page or try adjusting the print-
quality settings. If this problem occurs frequently, add
memory to the device....

The device prints, but the text is wrong, garbled, or incomplete.
Cause
Solution
The wrong driver was selected in the software.Check the software device selection menu to make sure that
an HP LaserJet M4345 device is selected.
The software program is malfunctioning.Try printing a job from another program.
The device does not respond when you select Print in the software. 
Cause
Solution
The device is out of media.Add media.
The device might be in the manual-feed mode.Change the device from manual-feed...

Control-panel message types
Four types of control-panel messages can indicate the status of or problems with the device.
Message typeDescription
Status messagesStatus messages reflect the current state of the device. They inform you of normal device
operation and require no interaction to clear them. They change as the state of the device
changes. Whenever the device is ready, not busy, and has no pending warning messages, the
status message Ready appears if the device is online.
Warning messagesWarning...

Control-panel messages
Table 11-1  Control-panel messages
Control panel messageDescriptionRecommended action
A duplexed (2-sided) document was
requested from a tray that is set to Any
Size or Any Custom . Duplexing is not
allowed from a tray configured to  Any Size
or  Any Custom .Select another tray or reconfigure the tray.
A user name or password is incorrect.Type the information again.
A digital send or copy job has been
performed from the scanner glass, but the
original document needs to be...