Defect Symptom Mottle, marks, splotches, or clouds of toner appear – often, but not always – on the page's edge. See image below.
NOTE: For more information, please see KB Solutions ID: Marks, Splotches, or Clouds of Toner Print Near the Edges of the Printout of a Lexmark C73x/X73x Printer/MFP.
Troubleshooting
Perform the "Color Adjust" procedure in the "Quality" menu".
Print the "Print Defects Guide" from the "Help" menu. Use the defect rulers to determine if this is a repeating defect or whether the splotches/marks/clouds appear from top to bottom of the page.
If the defect repeats at a regular interval and the defect rules point to a defective toner cartridge, photoconductors, or fuser, replace that specific part.
Note:The fusers very rarely cause print quality problems.
If the defect has the appearance of marks/splotches/clouds at the edge of the page in areas that should be white, from top to bottom and without a clear repeating interval — the toner cartridge is most likely the defective component.
Print the "Print Defects Guide" after replacing the defective part. Should the print defect be not resolved or if the defect component is not identified, please contact Lexmark Technical Support for other troubleshooting suggestions.
Contacting Lexmark
Please contact Lexmark Technical Support if you need additional assistance.
NOTE: When calling for support, you will be asked for your machine/model type and serial number (SN). If you need help locating your printer's model type and serial number (SN), How to Locate the Serial Number, TLI, Config ID, and Machine Type on the Lexmark C734, C736 or X734, X736, X738 Color Laser Printers.
Please call from near the printer in case the technician on the phone asks you to perform a troubleshooting task on the printer. LEGACY ID: SO6613