HL-4000CN
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Preguntas frecuentes y Solución de problemas |
Output sheets are completely black.
![](/g/b/img/faqend/faq00000003_000/us_ot/en/90006/P355067A.gif)
Check the following points:
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The print head cartridge might be old or damaged. Replace the print head cartridge. To see how to replace the print head cartridge, click here.
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The power supply might be defective. If the problem continues, we recommend you contact your dealer or Brother Customer Service.
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