HL-4000CN
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FAQs & Troubleshooting |
Dirty spots are printed.
![](/g/b/img/faqend/faq00000005_000/ae/en/90016/P355063A.gif)
Check the following points:
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Is the media suitable and are you using preprinted or inkjet paper? Replace the media with a recommend size and type, and confirm that your printer driver settings are correct.
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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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