White streaks or bands appear down the page.
Please check the following points:
- Shake the toner cartridges gently from side to side.
- Clean the laser scanner windows with a soft cloth.
Please refer to the instructions, "How do I clean the laser scanner windows?".
DCP-9040CN, MFC-9440CN, MFC-9450CDN
If you need further assistance, please contact Brother customer service:
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