Lexmark X642e User Manual

171
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 print cartridge side-to-side and...

172
Toner fog or background 
shading appears on the 
page.Check the print 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 print cartridge.
Entire page is white.Make sure the packaging material is removed from the print cartridge. 
Check the print cartridge to be sure it is installed correctly. 
The toner may be low. To...

173
Characters have jagged or 
uneven edges.Change the Print Resolution setting in the Quality menu to 600 dpi, 1200 
Image Q, 1200 dpi, or 2400 Image Q.
Enable Enhance Fine Lines.
See the tables on page 175 for more settings information.
If 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...

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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 selectionPurposeVa l u e s†
Print Resolution To select printed output resolution 600 dpi*
1200 Image Q
1200 dpi
2400 Image Q
Toner Darkness Lightens...

176
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
The X642e x642e and Model IImachine types 7002-003, 7002-004, 7002-005, 7002-
006 have been tested and found to comply with the limits for a Class A digital...

177
substitute cable not properly shielded and grounded may result in a violation of 
FCC regulations.
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 numérique de la classe A respecte toutes les exigences du Règlement ICES-003 sur le 
matériel brouilleur du Canada.
European Community (EC) directives conformity 
Declaration...

178
German Hiermit erklärt Lexmark International Inc., dass sich dieses Product in 
Übereinstimmung mit den grundlegenden Anforderungen und den anderen 
relevanten Vorschriften der Richtlinie 1999/5/EG befindet. (BMWi)
Hiermit erklärt Lexmark International Inc. die Übereinstimmung des Gerätes 
Product mit den grundlegenden Anforderungen und den anderen relevanten 
Festlegungen der Richtlinie 1999/5/EG. (Wien)
ÅëëçíéêÜ
Με την παρούσα Lexmark International Inc. δηλώνει οτι Product συµµορφώνεται προς τις...

179
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 and safety of electrical equipment designed for use 
within certain voltage limits and on radio equipment and telecommunications terminal equipment. 
The Official Declaration of Conformity may be viewed at www.lexmark.com/rtte.
Compliance is indicated by the...

180
Japanese VCCI notice
Korean MIC statement
BSMI EMC notice
Par t 68
This equipment complies with Part 68 of the FCC rules and the requirements adopted by the 
Administrative Council for Terminal Attachments (ACTA). On the back of this equipment is a label that 
contains, among other information, a product identifier in the format US:AAAEQ##TXXXX. If 
requested, this number must be provided to your telephone company.
This equipment uses the RJ-11C Universal Service Order Code (USOC) jack.
A plug and...