Lexmark 20D0000 - X 340 MFP B/W Laser User manual

Lexmark™ X34x
Troubleshooting
Guide
Setup troubleshooting
Incorrect language appears on the
display
1Press Menu.
2Press or repeatedly until MACHINE
SETUP appears on the display.
3Press .
4Press or repeatedly until Language
appears on the display.
5Press .
6Press or repeatedly until the language
you want appears on the display.
7Press .
8Press Back repeatedly to return to the Ready
prompt.
Display is not lit
1Turn off the MFP.
2Disconnect the power supply cord from the wall
outlet, and then from the MFP.
3Plug the cord all the way into the MFP.
4Plug the cord into an electrical outlet that other
electrical devices have been using.
5Turn on the MFP.
Software will not install
If the software does not launch automatically when
you insert the CD:
1Close all open software applications.
2Temporarily disable any anti–virus programs.
3Double–click the My Computer icon.
4For Windows XP, click Start to access the My
Computer icon.
5Double–click the CD–ROM drive icon.
6If necessary, double–click setup.exe.
7Follow the instructions on the computer screen
to install the software.
Note: After installing the software, be sure
to re–enable your anti–virus
software.
If the MFP is connected to the computer through
another device:
1Disconnect the USB cable from any other
device such as a USB hub or switch box.
2Directly connect the cable to the MFP and the
computer.
Unable to connect over a network
Make sure you are using the correct cable, that it is
securely connected, and the network options are
properly configured.
For more information, see the User’s Guide.
Note: Connecting over a network is only
available on the X342n.
Removing and reinstalling the
drivers software
If the software is not functioning properly or a
communications error message appears, you may
need to remove and then reinstall the drivers
software. If the problems persist, follow these steps:
Note: Before reinstalling, shut down and
restart the computer.
1Disconnect the USB cable from the computer.
2From the desktop, click Start Programs 
Lexmark Lexmark Software Uninstall.
3Follow the instructions on the computer screen
to remove the software.
4Restart the computer.
5If any Add New Hardware screens appear, click
Cancel.
6Eject and reinsert the software CD.
7Reconnect the USB cable to the computer.
If the software installation screen does not appear:
1From the desktop, double-click My Computer.
For Windows XP, click Start to access the My
Computer icon.
2Double-click the CD–ROM drive icon. If
necessary, double-click setup.exe.
3When the MFP software installation screen
appears, click Install or Install Now.
4Follow the instructions on the computer screen
to complete the installation.
Jams and misfeeds
troubleshooting
Avoiding Jams
Follow these tips to help prevent document and
paper jams.
•Use only recommended print materials.
•Do not mix paper types in the paper tray.
•Do not use creased, damp, or curled paper.
•Flex, fan, and straighten the paper before
loading.
•Make sure the adjustable paper guides are
positioned correctly.
•Make sure the recommended print side has the
correct orientation when loading paper in the
paper tray and the manual feeder.
•Do not overload the paper tray. The paper
should be below the max fill line on the inside
wall of the paper tray.
•Do not remove the paper from the tray while
printing.

Paper or specialty media misfeeds,
skews, or multiple sheets stick
together
•Load a smaller amount of paper into the MFP.
See the User’s Guide for more information
about maximum loading amounts for each
paper type.
•Use only new, unwrinkled paper.
•Prepare the stack of paper for loading by flexing
or fanning it back and forth. Straighten the
edges on a level surface
Paper does not feed
•Make sure paper is loaded correctly.
•Load a smaller amount of paper into the MFP.
Paper stacks poorly in the front
output slot
•Extend the paper stop.
•Do not let too much paper stack up in the front
output slot.
Envelopes skew or fail to feed
correctly
Insert a single envelope in the manual feeder, and
make sure the guides are against both sides of the
envelope.
Print and copy
troubleshooting
MFP does not print or respond
•Remove and reinstall the software. For more
information, see “Removing and reinstalling the
drivers software” on page 1.
•If you are scanning a document, wait until
scanning is complete before using the MFP.
•Restart the computer.
•Make sure the MFP is set as the default printer.
1Click Start Settings Printers and
Faxes or Printers.
or
Click Start Control Panel Printers
and Other Hardware Printers and
Faxes.
2Double–click the Lexmark X340/X340n/
X342n icon.
3Click Printer, and make sure no check mark
appears next to Pause Printing.
4Make sure a check mark appears next to Set
As Default.
•Make sure the front cover is closed.
•Make sure the toner cartridge is installed
correctly. For more information, see the User’s
Guide.
•Disconnect the USB cable, and then reconnect
it.
Print speed is slow.
•Close all applications not in use.
•Minimize the number and size of graphics and
images in the document.
•If you are using the manual feeder, this is
normal.
Print quality
troubleshooting
Light or faded print
•You may be able to temporarily extend the toner
cartridge life by shaking the toner cartridge.
•Install a new toner cartridge. For more
information, see the User’s Guide.
•Only use new, dry paper.
•Make sure the front door is securely latched on
both sides.
•For copies, adjust the darkness settings by
pressing Darkness from the control panel.
•For prints, adjust the darkness settings from the
control panel menu:
1From the control panel, press Menu.
2Press or repeatedly until MACHINE
SETUP appears.
3Press .
4Press or repeatedly until Toner
Dark appears.
5Press .
6Press or repeatedly to adjust the
darkness settings.
7Press to save the settings.
8Press Back repeatedly to return to the
Ready prompt.
•For prints, adjust the darkness settings from the
control panel menu:
1From the control panel, press Menu.
2Press or repeatedly until MACHINE
SETUP appears.
3Press .
4Press or repeatedly until Toner
Dark appears.
5Press .
6Press or repeatedly to adjust the
darkness settings.
7Press to save the settings.
8Press Back repeatedly to return to the
Ready prompt.
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Toner specs
Replace the toner cartridge. For more information,
see the User’s Guide.
Clean the inside of the MFP. For more information,
see the User’s Guide.
Print irregularities
•Use only new, dry paper.
•You may be able to temporarily extend the toner
cartridge life by shaking the toner cartridge. If
this does not work, install a new print cartridge.
Vertical lines
•Replace the photoconductor. For more
information, see the User’s Guide.
•You may be able to temporarily extend the toner
cartridge life by shaking the toner cartridge. If
this does not work, install a new print cartridge.
Horizontal stripes
Replace the toner cartridge. For more information,
see the User’s Guide.
Gray background
•For copies, adjust the darkness settings by
pressing Darkness from the control panel.
•For prints, adjust the darkness settings from the
control panel menu:
1From the control panel, press Menu.
2Press or repeatedly until MACHINE
SETUP appears.
3Press .
4Press or repeatedly until Toner
Dark appears.
5Press .
6Press or repeatedly to adjust the
darkness settings.
7Press to save the settings.
8Press Back repeatedly to return to the
Ready prompt.
•Replace the toner cartridge. For more
information, see the User’s Guide.
Toner smear
•Clean the inside of the MFP. For more
information, see the User’s Guide.
•Make sure that the paper type settings match
the paper in the tray.
•Replace the toner cartridge. For more
information, see the User’s Guide.
Page skew
•Make sure the paper guides in the tray are
aligned with the edges of the paper.
•Make sure the paper guides for the manual
feeder are aligned with the edges of the paper.
Wrinkles or creases
•Make sure paper is loaded correctly.
•Make sure the paper is not too wet. Keep paper
in its original wrapper and out of high humidity
areas until needed. Try paper from a freshly
opened pack.
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Black pages
•Replace the toner cartridge. For more
information, see the User’s Guide.
•If replacing the toner cartridge does not correct
the problem, replace the photoconductor. For
more information, see the User’s Guide.
•The MFP may need to be serviced. Call a
service representative.
Scan troubleshooting
Scanner does not respond
•Check the display. If there is an error message,
see the User’s Guide.
•Make sure the MFP is set as the default printer
and is not on hold or paused.
1Click Start Settings Printers and
Faxes or Printers.
or
Click Start Control Panel Printers
and Other Hardware Printers and
Faxes.
2Double–click the Lexmark X340/X340n/
X342n icon.
3Click Printer, and make sure no check mark
appears next to Pause Printing.
4Make sure a check mark appears next to Set
As Default.
If you are printing a document, wait until printing is
done before sending the scan job.
Scans very slowly
•Close all applications not in use.
•If you are printing a document, wait until printing
is done before sending the scan job.
•To change the scanning resolution to a lower
value:
1From the control panel, press Scan.
2From the QLINK dialog on the computer
screen, select the location you want to use.
3Click Edit.
4Under Resolution, select a lower number.
5Click OK.
6Click Scan Now.
Scan was unsuccessful
•Restart the computer.
•Remove and reinstall the software. For more
information, see “Removing and reinstalling the
drivers software” on page 1.
Partial document scans
•Make sure the document is loaded correctly into
the ADF or on the scanner glass.
•Make sure that the paper size settings match
the paper in the tray.
Fax troubleshooting
Cannot send or receive a fax
•Check the display. If there is an error message,
see the User’s Guide.
•Make sure cable connections for the following
hardware are secure, if applicable:
–Power supply
–Telephone
–Handset
–Answering machine
•Check the telephone wall jack.
1Plug a telephone into the wall jack.
2Listen for a dial tone.
3If you do not hear a dial tone, plug a different
telephone into the jack.
4If you still do not hear a dial tone, connect
the printer to a different telephone jack.
•Place a test call to the telephone number to
which you want to send a fax to make sure that
it is working correctly.
•If the telephone line is being used by another
device, wait until the other device is finished
before sending a fax.
•To ensure the printer is working correctly,
connect it directly to the telephone line.
Disconnect any answering machines,
computers with modems, or telephone line
splitters.
•Check for and clear any paper jams.
•Call Waiting can disrupt fax transmissions.
Disable this feature before sending or receiving
a fax. Call your telephone company to obtain
the keypad sequence for temporarily disabling
Call Waiting.
Can send but not receive faxes
•Load paper to print any faxes that have been
stored in the printer.
•Check to see whether Fax Forwarding is
selected.
1From the control panel, press Fax.
2Press Menu.
3Press or repeatedly until FAX
ADVANCED appears.
4Press .
5Press or repeatedly until Fax
Forwarding appears.
6Press .
7Press or repeatedly until Off
appears.
8Press .
Can receive but not send faxes
•Make sure the document is loaded correctly into
the ADF or on the scanner glass.
•Check the Prefix setting.
1From the control panel, press Fax.
2Press Menu.
3Press or repeatedly until FAX
DEFAULTS appears.

4Press .
5Press or repeatedly until Prefix
appears.
6Press .
7Enter the numbers you would like to have
dialed before each telephone number.
8Press .
9Press Stop to return to the Ready prompt.
•If you used a Speed Dial button:
–Check to make sure it has been
programmed for the number that you wish
to dial.
–As an alternative, dial the telephone
number manually.
MFP receives a blank fax
•Ask the sender to verify the original document
was loaded correctly.
•Check the toner cartridge, and replace it if
necessary.
Received fax has poor quality
Ask that the sender:
•Check that the quality of the original document
is satisfactory.
•Resend the fax. There may have been a
problem with the quality of the telephone line
connection.
•Increase the fax scan resolution.