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error Brother

Error Code Cover is Open

The machine cover is open, preventing normal operation.

? What Causes This

Cover was not properly closed after accessing the machine interior.

How to Fix It

  1. Close the machine cover completely.
  2. Follow the messages displayed on the LCD.
  3. If the error persists, refer to the Online User's Guide or FAQs & Troubleshooting page at support.brother.com

Source: page 13 of the official manual

From the manual

Manual page 13 — Brother error Cover is Open

This error code appears in:

Brother DCP-B7500D Monochrome Laser Multifunction Printer