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C73x & X73x — Repeating Marks / Voids

Document ID:SO6625

Usergroup :External


C73x; X73x; Repeating Marks / Voids; X734de; X736de; X738de; C734dn; C736n; Marks, Splotches, Spots, Voids; Repeating down page;


Defect Symptom

Repeating Marks / Voids refers to marks, splotches, spots, or voids that repeat down the page, as shown in the image below.

Click Image to Enlarge




  1. Repeating defects of a single color (Cyan, Magenta, Yellow, or Black) are usually due to a defective toner cartridge or photoconductor units, and not due to TBMs, fusers, or other printer hardware. 
  2. Perform the "Color Adjust" procedure in the "Quality" menu.
  3. Print the "Print Defects Guide" in the "Help" menu and review the print samples.
  4. If the defect repeats down the page, use the defect ruler to determine which component is defective.
  5. A swap test of the photoconductor can be performed to confirm a suspect PC unit. 
  6. For optimum print quality and reliability, Lexmark recommends always replacing photoconductor units in complete sets.
  7. When replacing photoconductor units, be sure to reset the photoconductor life counter for each photoconductor unit replaced.



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), click here.

Please call from near the printer in case the technician on the phone asks you to perform a troubleshooting task on the printer.



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