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MFC-L3770CDW

FAQs & Troubleshooting

FAQs & Troubleshooting

Colored spots at 94 mm (3.7 in.) intervals or at 29 mm (1.1 in.) intervals

ColoredSpots


Follow the steps applicable for your case to resolve the issue:

 

Case 1: Colored spots at 94 mm (3.7 in.) intervals

 

  1. If the issue is not resolved after printing a few pages, the drum may have foreign material, such as glue from a label, stuck on the drum surface. Clean the drum unit.
    > Click here to see how to clean the drum unit.
  2. Install a new drum unit.
    > Click here to see how to replace the drum unit.

 

 

Case 2: Colored spots at 29 mm (1.1 in.) intervals

 

  1. Identify the color causing the issue and install a new toner cartridge.
  2. To identify the color of the toner cartridge and replace toner cartridge, follow the steps below:

     

    1. > Click here to print the chart. [345KB/ PDF]
    2. Compare your printed document with the printed chart to identify the color causing the issue.
    3. Replace the toner cartridge of the color.
      > Click here to see how to replace the toner cartridge.
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