Lexmark X850e User Manual

							Solving fax quality problems
140
Troubleshooting
Solving fax quality problems
The following solutions will help solve copy problems. For additional information, see Fax tips.
Solving option problems
If an option does not operate correctly after it is installed, or if it quits working:
Turn the MFP off, wait for about 10 seconds, and turn the MFP on. If this does not fix the problem, unplug the MFP, 
and check the connection between the option and MFP.
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 settings page for more information.
Make sure the option is selected in the software application you are using.
The following table lists MFP options and suggested corrective actions for related problems. If the suggested corrective 
action does not fix the problem, call your service representative.
SymptomSolution
The fax document takes a long 
time to transmit.Touch Options, then under Content, change the setting to Text, and then set the 
resolution to Standard.
The images on the fax I sent are 
not clear.Touch Options, then under Content, change the setting to Text/Photo or Photo.
Increase the output resolution.
Note:This will increase the amount of time required for the scan and will increase the 
quality of the fax output.
OptionAction
DrawersMake sure the connection between drawers (250-sheet drawer, 500-sheet drawer, or 2000-sheet 
drawer) or the connection between a drawer and a duplex unit or the MFP is secure. 
Make sure the print media is loaded correctly. See Loading standard or optional 500-sheet 
trays for more details.
Duplex unitMake sure the connection between the duplex unit and the MFP is secure. If the duplex unit is 
listed on the menu settings page, but print media jams when it enters or exits the duplex unit, the 
MFP and duplex unit may not be properly aligned. 
Make sure the duplex front access cover is securely installed.
Flash memory Make sure flash memory is securely connected to the MFP system board.
Internal print 
serverMake sure the internal print server (also called an internal network adapter or INA) is securely 
connected to the MFP system board.
Make sure you are using the correct cable, that it is securely connected, and the network 
software is correctly set up.
See the Software and Documentation CD that shipped with the MFP for more details.
Large capacity 
feeder (2000-sheet 
drawer)See Solving 2000-sheet drawer problems.
MFP memory Make sure MFP memory is securely connected to the MFP system board.
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							Solving option problems
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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 MFP is properly attached to the 2000-sheet drawer.
The MFP 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 power.
The elevator tray lowers unexpectedly. Check to see if the MFP is out of print media or has a jam.
More than one sheet of print media is fed, or a 
sheet is fed improperly.Remove the print media in the MFP paper path, and check the stack to 
ensure the print media has been loaded properly. Be sure to remove the 
top and bottom sheets of each ream of paper that is loaded.
A jam occurs.
Rubber feed rollers do not turn to advance 
print media.Check the following:
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 power.
Consistent misfeeds or jams in the drawer Try the following:
Flex the paper.
Turn the print media over.
Check the following:
Drawer is properly installed.
Print media is loaded correctly.
Print media is not damaged.
Print media meets specifications.
Guides are positioned correctly for the print media size selected.
Service messages  A service message indicates an MFP failure that may require service.
Turn the MFP off, wait about 10 seconds, and then turn the MFP on.
If the error recurs, write down the error number, the problem, and a 
detailed description. Call for service.
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							Solving paper feed problems
142
Troubleshooting
Solving paper feed problems
SymptomCauseSolution
Paper frequently jams.  You are using paper that does not 
meet the MFP 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 for information that can help prevent 
jams from occurring.
You have loaded too much paper 
or too many envelopes.Make sure the stack of paper you load does not exceed 
the maximum stack height indicated in the tray or on the 
multipurpose feeder.
Guides in the selected tray are not 
set to the appropriate position for 
the size paper loaded.Move the guides in the tray to the correct position.
The paper has absorbed moisture 
due to high humidity.Load paper from a fresh package.
Store paper in its original wrapper until you load it.
See Storing print media for more information.
The Paper Jam 
message remains after 
you remove the jammed 
paper. You have not pressed Continue 
or have not cleared the entire 
paper path.Clear the entire paper path, and then press
 Continue.
See Clearing jams for more information.
The page that jammed 
does not reprint after you 
clear the jam. Jam Recovery in the Setup menu 
is set to Off.Set Jam Recovery to Auto or On.
See the Menus and Messages Guide for more 
information.
Blank pages feed into 
the output bin. An incorrect media type is loaded 
in the tray being printed from.Load the correct type media for your print job, or change 
the Paper Type to match the type of media loaded.
See the Menus and Messages Guide for more 
information.
Original documents 
misfeed in the ADF.The guides are not adjusted 
properly.Adjust the guides toward the media until they lightly rest 
against the edge of the media.
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							Print quality troubleshooting
143
Troubleshooting
Print quality troubleshooting
To help isolate print quality problems, print the “Print defects guide,” and check for repeating defects. If repeating defects 
appear, print the Print Quality Test Pages.
Printing the print defects guide
1Touch the help icon (?).
2Touch Print Defects Guide.
Printing the print quality test pages
1Turn the MFP off.
2Hold down the number 2 and number 6 keys on the numeric pad.
3Continue to hold the buttons, and turn the MFP on.
Hold the buttons for about 10 seconds while the MFP is powering up, then release the buttons. The MFP enters 
the Configuration menu.
4Touch Print Quality Pages.
5Touch Exit Configuration Menu.
The MFP restarts and returns to the home page.
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							Solving print quality problems
144
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 an MFP part that requires adjustment or replacement.
ProblemAction
Print is too light. The toner may be low. To utilize the remaining toner, remove the cartridge by gripping 
the handles with both hands. With the cartridge arrows pointing downward, firmly 
shake the toner cartridge side-to-side and front-to-back several times to redistribute 
the toner. Reinstall the cartridge
. Repeat this procedure multiple times until the print 
remains faded. When the print remains faded, replace the toner cartridge.
Change the Toner Darkness setting in the Quality menu.
Change the Brightness setting in the Quality menu.
Change the Contrast setting in the Quality menu.
If you are printing on an uneven print surface, change the Paper Weight and Paper 
Texture settings in the Paper menu.
Verify the correct print media is being used.
Verify you are using the correct MFP drivers.
Verify the environment is 16 to 32 degrees C (60 to 90
o F).
Toner smears or print comes 
off the page.If you are printing on an uneven print surface, change the Paper Weight and Paper 
Texture settings in the Paper menu.
Verify the print media is within the MFP specifications. See Understanding paper and 
specialty media guidelines for more details.
Toner appears on the back of 
the printed page.Toner is on the transfer roll. To help prevent this, do not load print media that is smaller 
than the page size of the job to be printed.
Open and close the MFP top front cover to run the MFP setup cycle and clean the 
transfer roll.
Toner fog or background 
shading appears on the page.Check the toner cartridge to make sure it is installed correctly.
The Toner Darkness setting may be too dark. Change the Toner Darkness setting in 
the Quality menu.
Verify the environment is Class B.
Replace the charge rolls.
Replace the toner cartridge.
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							Solving print quality problems
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Troubleshooting
Entire page is white.Make sure the packaging material is removed from the toner cartridge. 
Check the toner cartridge to be sure it is installed correctly. 
The toner may be low. To utilize the remaining toner, remove the cartridge by gripping 
the handles with both hands. With the cartridge arrows pointing downward, firmly 
shake the toner cartridge side-to-side and front-to-back several times to redistribute 
the toner. Reinstall the cartridge
. Repeat this procedure multiple times until the print 
remains faded. When the print remains faded, replace the toner cartridge.
Streaks appear on the page.The toner may be low. To utilize the remaining toner, remove the cartridge by gripping 
the handles with both hands. With the cartridge arrows pointing downward, firmly 
shake the toner cartridge side-to-side and front-to-back several times to redistribute 
the toner. Reinstall the cartridge
. Repeat this procedure multiple times until the print 
remains faded. When the print remains faded, replace the toner cartridge.
If you are using preprinted forms, make sure the ink can withstand temperatures of 
230°C (446°F).
Printing is too dark.Change the Toner Darkness setting in the Quality menu.
Change the Brightness setting in the Quality menu.
Change the Contrast setting in the Quality menu.
Verify the environment is 16 to 32 degrees C (60 to 90
o F).
Note:Macintosh computer users should make sure the job lines per inch (lpi) setting is 
not set too high in the software application.
Characters have jagged or 
uneven edges.Change the Print Resolution setting in the Quality menu to 600 dpi, 1200 dpi, or 2400 
Image Q.
Enable Enhance Fine Lines.
See the tables on page 147 for more settings information.
If you are using downloaded fonts, verify the fonts are supported by the MFP, the host 
computer, and the software application.
Verify the print media type and print tray type settings match.
Verify you are using the correct MFP drivers.
Verify the environment is 16 to 32 degrees C (60 to 90
o F).
ProblemAction
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							Solving print quality problems
146
Troubleshooting
Part or all of the page is 
printed in black.Check the toner cartridge 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.
Verify the environment is Class B.
Replace the charge rolls.
Replace the toner cartridge.
Some of the print is cut off on 
the sides, top, or bottom of 
the media.Move the guides in the tray to the proper positions for the size loaded.
Print is skewed or 
inappropriately slanted.
Transparency print quality is 
poor.Use only transparencies recommended by the MFP manufacturer.
Make sure the Paper Type setting in the Paper menu is set to Transparency.
ProblemAction
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							Solving print quality problems
147
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 MFP Embedded Web Server (EWS) interface. For more information about these options, 
see the driver Help.
Menu selectionPurposeVal u e s†
Print Resolution To select printed output resolution 600 dpi*
1200 dpi
2400 Image Q
Toner Darkness Lightens or darkens printed output and 
alters toner consumption1–108* is the default setting.
Select a lower number to lighten the 
printed output or save toner.
Brightness Adjusts the gray value of printed 
graphics and pictures-6 – +60* is the default setting.
Contrast Adjusts the contrast of printed graphics 
and pictures0–50* is the default setting.
† Values marked by an asterisk (*) are the factory default settings.
Driver optionPurposeVal u e s†
Enhance Fine Lines A selection to enable a print mode 
preferable for certain files containing 
fine line detail, such as architectural 
drawings, maps, electronic circuit 
diagrams, and flow chartsOn In the driver, select On or Off.
Off* In the driver, select On or Off.
Gray Correction Automatically adjusts the contrast 
enhancement applied to imagesAuto In the driver, select Auto or Off.
Off* In the driver, select Auto or Off.
† Values marked by an asterisk (*) are the factory default settings.
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							Notices148
Notices
Conventions
Note: A note  identifies something that could help you.
CAUTION: A caution  identifies something that could cause you harm.
Warning: A warning  identifies something that could damage your product hardware or software.
Electronic emission notices
Federal Communications Commission (FCC) compliance information statement
Part 15
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the 
FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) 
this device must accept any interference received, including interference that may cause undesired operation.
The FCC Class A limits are designed to provide reasonable protection against harmful interference when the equipment is 
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not 
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. 
Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be 
required to correct the interference at his own expense.
The manufacturer is not responsible for any radio or television interference caused by using other than recommended 
cables or by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void 
the users authority to operate this equipment.
Note:To assure compliance with FCC regulations on electromagnetic interference for a Class A computing 
device, use a properly shielded and grounded cable such as Lexmark part number 1329605 for 
parallel attach or 12A2405 for USB attach. Use of a substitute cable not properly shielded and 
grounded may result in a violation of FCC regulations.
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							Notices149
Notices
India emissions notice
This device uses very low power low range RF communication that has been tested and found not to cause any 
interference whatsoever. The manufacturer is not responsible in case of any disputes arising out of requirement 
of permissions from any local authority, regulatory bodies or  any organization, required by the end-user to install 
and operate this product at his premises.
Industry Canada compliance statement 
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations ICES-
003.
Avis de conformité aux normes de l’industrie du Canada 
Cet appareil num érique de la classe A respecte toutes les exigences du R èglement ICES-003 sur le mat ériel brouilleur du 
Canada.
European Community (EC) directives conformity
This product is in conformity with the protection requirements of EC Council directives 89/336/EEC, 73/23/EEC, and 1999/
5/EC on the approximation and harmonization of the laws of the Member States relating to electromagnetic compatibility, 
safety of electrical equipment designed for use within certain voltage limits and on radio equipment and 
telecommunications terminal equipment.
Compliance is indicated by the CE marking.
A declaration of conformity with the requirements of the directives is available from the Director of Manufacturing and 
Technical Support, Lexmark International, S. A., Boigny, France.
This product satisfies the limits of EN 55022; safety requirements of EN 60950; radio spectrum requirements of ETSI EN 
300 330-1 and ETSI EN 300 330-2; and the EMC requirements of EN 55024, ETSI EN 301 489-1 and ETSI EN 301 489-3.
English Hereby, Lexmark International Inc., declares that this product is in 
compliance with the essential requirements and other relevant provisions 
of Directive 1999/5/EC.
Suomi Valmistaja Lexmark International Inc. vakuuttaa täten, että tämän tuotteen 
tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä 
koskevien direktiivin muiden ehtojen mukainen.
Nederlands Hierbij verklaart Lexmark International Inc. dat dit product in 
overeenstemming is met de essentiële eisen en de andere relevante 
bepalingen van richtlijn 1999/5/EG.
Bij deze verklaart Lexmark International Inc. dat dit product voldoet aan de 
essentiële eisen en aan de overige relevante bepalingen van richtlijn 1999/
5/EG.
X850e, X852e, X854e
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