Model discontinued. This page is no longer updated.

MFC-9420CN

FAQs & Troubleshooting

FAQs & Troubleshooting

MFC-9420CN

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Updated:30/10/2026

These are the most viewed FAQs, ranked by popularity.

  1. 1.Printouts have wrinkles or creases.
  2. 2.The error message "No Supported Devices Found" appears on the Brother iPrint&Scan (mobile device).
  3. 3."JAM A1" / "JAM A2" error appears on the LCD. What should I do?
  4. 4.My printed documents are incomplete or a blue screen appears when printing or using PC-FAX after a Windows 10 update (March 2021)
  5. 5."Paper Jam C" error appears on the LCD. What should I do?

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