MFC-9840CDW
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FAQs & Troubleshooting |
Nothing is printed on the page or some colours are missing.
![](/g/b/img/faqend/faq00000002_009/gb/en/90004/27_pq_07.gif)
Please check the following points.
- Make sure that the toner cartridges are installed properly.
- One of the toner cartridges may be damaged. Identify the missing colour and put in a new toner cartridge for the colour with the white line.
- The drum unit may be damaged. Put in a new drum unit.
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