Brother error code Self-Diagnostic

Before you try the solution

1. 1. Copy the complete message exactly as shown, including any letters, spaces, or punctuation around Self-Diagnostic.
2. 2. Find the printer's exact model number. The same-looking code can mean something different on another model family.
3. 3. Let the current print, scan, or update operation stop before touching controls, paper paths, or covers.

Manufacturer-documented solution

If the error is still there

1. 1Return to the screen or job that produced the message and check whether the code has cleared.
2. 2If Self-Diagnostic returns, do not repeat a risky procedure. Record when it appears and check the documentation for the exact model.
3. 3Because this message involves opening the printer, service risk, or possible damage, stop and contact Brother support or a qualified printer technician if it persists.

Other Brother error codes

• Server Error 01Authentication with the Web Connect service failed because credentials expired or became invalid. Go to bwc.brother.com to obtain a new temporary ID.
• Server Error 03A file upload to a Web Connect service failed because the file exceeds size limits, uses an unsupported format, or is corrupted. Confirm the file and retry.
• Scan Unable ##The scanner reports a mechanical problem. Brother's remedy is a power cycle, then contacting Brother Customer Service.
• Shortcut Error 02A saved Web Connect shortcut is invalid because the linked account was deleted after the shortcut was created. Register the account and recreate the shortcut.
• Size Error DXThe loaded paper size is not compatible with 2-sided (duplex) printing. Load a supported size (e.g. Letter, Legal, Mexico Legal, India Legal, Folio).
• Size MismatchThe paper loaded in the tray does not match the size configured for that tray. Load the correct size, adjust the tray setting, and press Go.