Lexmark W840n User Manual

Clearing printer jams
91
Clearing jams
Clearing Area G
1Open the finisher door.
2Remove the jammed media, as indicated on the operator panel.
3Close the door.
4Press .
Clearing Area H
1Lift Door H.
2Remove the jammed media.
3Close the door.
4Press .
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Clearing staple jams
92
Clearing jams
Clearing staple jams
A Staples Empty or Misfed message indicates staples are jammed in the stapler. This requires removing the staple 
cartridge holder from the printer.
1Check that the machine stops operations, and open Door G (front door) of the finisher.
2Hold the lever on the staple cartridge holder, and move the holder to the right (towards you).
3Firmly pull the colored tab to remove the staple cartridge.
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Clearing staple jams
93
Clearing jams
4Use the metal tab to lift the staple guard, and then pull out the sheet of staples.
Discard the entire sheet.
5Remove any loose staples from the staple guard.
6Look through the clear covering on the bottom of the cartridge holder to make sure no staples are jammed in the 
entry throat.
7Press down on the staple guard until it snaps securely into place.
8Push the cartridge holder firmly into the stapler until the holder clicks into place.
9Close Door G.
Priming...

Troubleshooting
94
9Troubleshooting
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
95
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 Acrobat.
2Click the printer icon.
The Print dialog appears.
3Check the Print as image box.
4Click OK.
SymptomCause Solution
The operator panel 
display is blank or 
displays only diamonds.The printer self test 
failed.Turn the printer off, wait about 10 seconds,...

Solving printing problems
96
Troubleshooting
Held jobs do not print. A formatting error has 
occurred. Print the job. (Only part of the job may print.)
 Delete the job.
 Free up additional printer memory by scrolling through the list of 
held jobs and deleting others you have sent to the printer. The printer has 
insufficient memory.
The printer has received 
invalid data.Delete the job.
Job takes longer than 
expected to print.The job is too complex. Reduce the complexity of your print job by...

Solving option problems
97
Troubleshooting
Solving option problems
If an option does not operate correctly after it is installed or if it quits working:
Turn the printer off, wait for about 10 seconds, and turn the printer on. If this does not fix the problem, unplug the 
printer, and check the connection between the option and printer.
Print the menu settings page, and check to see if the option is listed in the Installed Options list. If the option is not 
listed, reinstall it. See Printing the menu...

Solving option problems
98
Troubleshooting
Solving 2000-sheet drawer problems
ProblemSolution
The elevator tray does not raise when the 
loading door is closed, or the elevator tray 
does not lower when the door is opened and 
the elevator button is pushed.Check the following:
 The printer is properly attached to the 2000-sheet drawer.
 The printer is powered on.
 The power cord is plugged firmly into the back of the 2000-sheet 
drawer.
 The power cord is plugged into an outlet.
 The outlet has...

Solving paper feed problems
99
Troubleshooting
Solving paper feed problems
SymptomCauseSolution
Paper frequently jams.  You are using paper that does not 
meet the printer specifications.Use recommended paper and other specialty media.
See the Card Stock & Label Guide available on our 
Lexmark Web site at www.lexmark.com for detailed 
specifications.
See Avoiding jams on page 47 for information that can 
help prevent jams from occurring.
You have loaded too much paper 
or too many envelopes.Make sure the...

Solving print quality problems
100
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...