Lexmark E450dn User Manual

Troubleshooting
51
7Troubleshooting
Online customer support
Customer support is available on our Lexmark Web site at www.lexmark.com.
Calling for service
When you call for printer service, describe the problem you are experiencing, the message on the display, and the 
troubleshooting steps you have already taken to find a solution.
You need to know your printer model type and serial number. See the label on the printer for this information.
The serial number is also listed on the menu settings page. See...

Printing multiple-language PDFs
52
Troubleshooting
Printing multiple-language PDFs
Solving printing problems
SymptomCauseSolution
Some documents do not 
print.The documents contain 
unavailable fonts.1Open the document you want to print in Adobe Reader.
2Click the printer icon.
The Print dialog appears.
3Check the Print as image box.
4Click OK.
SymptomCause Solution
The control panel display 
is blank or displays only 
diamonds.The printer self test 
failed.Turn the printer off, wait about 10 seconds,...

Solving printing problems
53
Troubleshooting
Job takes longer than 
expected to print.The job is too complex. Reduce the complexity of your print job by eliminating the number 
and size of fonts, the number and complexity of images, and the 
number of pages in the job.
Page Protect is set to 
On.Set Page Protect to Off from the Setup Menu.
For more information, see the Menus and Messages Guide.
The printer Operating 
Mode is set to Quiet 
mode or Eco-mode.Set the Operating Mode to Normal. 
For more...

Turning on Reduced Curl mode
54
Troubleshooting
Turning on Reduced Curl mode
If the print media is curled once it exits the printer, Reduced Curl mode can be turned on to help reduce the problem. 
However, before turning this mode on, you should try the possible solutions offered in Troubleshooting. For more 
information, see The paper is curled once it exits the printer.
Note:Print speed is significantly slower in Reduced Curl mode.
1Turn the printer off.
Note:Disabling the control panel menus does not...

Solving paper feed problems
55
Troubleshooting
Solving paper feed problems
ProblemSolution
Service messages  A service message indicates printer failure that may require service. 
Turn the printer off, wait about 10 seconds, and then turn the printer on.
If the error recurs, write down the error number, the problem, and a 
detailed description. Call for service.
SymptomCauseSolution
Paper frequently jams.  You are using paper that does not 
meet the printer specifications.Try the following:
Flex the...

Solving print quality problems
56
Troubleshooting
Solving print quality problems
The information in the following table may help you solve print quality problems. If these suggestions still do not correct the 
problem, call for service. You may have a printer part that requires adjustment or replacement.
ProblemAction
Print is too light. The toner may be low.
Change the Toner Darkness setting in the Quality menu.
Change the Brightness setting in the Quality menu.
Change the Contrast setting in the...

Solving print quality problems
57
Troubleshooting
Entire page is white.Make sure the packaging material is removed from the photoconductor kit.
Check the photoconductor kit and toner cartridge to be sure they are installed 
correctly.
Replace the photoconductor kit.
Streaks appear on the page.If you are using preprinted forms, make sure the ink can withstand temperatures of 
210°C (410°F).
Replace the photoconductor kit or toner cartridge.
Printing is too dark.Change the Toner Darkness setting in...

Solving print quality problems
58
Troubleshooting
Part or all of the page is 
printed in black.Check the photoconductor kit to see if it is installed correctly. 
The job prints, but the top and 
side margins are incorrect. Make sure the Paper Size setting in the Paper menu is correct.
Make sure the margins are set correctly in your software application.
Ghost images appear.Make sure the Paper Type setting in the Paper menu is correct.
Replace the photoconductor kit.
Gray background prints.The Toner...

Solving print quality problems
59
Troubleshooting
The Quality menu control panel options can be adjusted to help improve print quality.
In addition, the Enhance Fine Lines and Gray Correction options can be enabled to improve print quality. These settings are 
available on the driver and on the printer Embedded Web Server (EWS) interface. For more information about these 
options, see the driver Help. 
Menu selectionPurposeVa l u e s
Print Resolution To select printed output resolution 600 dpi
1200 dpi...

Administrative support
60
8Administrative support
Adjusting control panel brightness and contrast
The LCD control panel contrast and brightness can be adjusted through the Utilities menu. For more information, see the 
Menus and Messages Guide.
The LCD Brightness and LCD Contrast settings are adjusted separately. To change the LCD Brightness or LCD Contrast 
settings:
1Make sure your printer is on.
2Press   on the control panel.
3Press  until  Settings appears, and then press  .
4Press  until  Utilities...