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Dark Vertical Lines when Printing from the Lexmark CS310, CS410, CS510, CX310, CX410, and CX510

Document ID:SO7211
 
  Properties  

Problem

Print Quality; Vertical Line; Dark Band; Streaks; Leaking toner;

Solution

Overview


Single or multiple lines or bands of toner appear on the printed pages. The printed pages will have excess toner in a form of random streaks, which may consist of one or more colors. They may be darker or lighter in color than the rest of the page. See the sample page below.

 

 

Print Defect Sample


Click Image to Enlarge

This article will help you confirm the problem. Please refer to the directions in the table below to help determine which hardware part is causing the issue.

 

 

Troubleshooting


Steps Actions
1

For a print quality defect of this type, it is always advisable to print the following:
 

  • Print Quality Pages – To get a detailed look at your printer's output; these pages allow each color plane to be viewed independently to determine whether the issue is with one color (possibly due to a single supply item), or with all the colors (indicating a more general issue with the printer).


Note: The User's Guide details instructions for navigating through the printer menus.

2 To determine the source of the print defect, examine the sample page that you printed. If the vertical lines occur only in one color, try replacing the developer unit of the corresponding color and the Photoconductor Unit (PCU).
3 If issue occurs with all the colors (indicating a more general issue with the printer), an issue may exist within the machine's hardware. 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, click here.


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

 



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