MFC-7240
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FAQ et Diagnostic |
White spots or black spots at 94 mm (3.7 in.) intervals
![Black spots](/g/b/img/faqend/faq00000701_008/us_ot/en/26890/whiteorblackspots1.gif)
- Make ten copies of a blank, white sheet of paper.
If the problem is not solved, the drum unit may have glue from a label stuck on the OPC drum surface. Clean the drum unit. Please refer to the instructions, "Clean the drum unit".
- The drum unit may be damaged. Put in a new drum unit. Please refer to the instructions, "REPLACE DRUM"
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