What are the troubleshooting steps for a Brother DCP-J140W displaying error 4F?

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Grade: Education Subject: Support
What are the troubleshooting steps for a Brother DCP-J140W displaying error 4F?
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Start by removing and reinserting the ink cartridges. Check that the protective tape has been fully removed from new cartridges. If using refilled or non-Brother cartridges, try replacing them with genuine Brother cartridges. Also, ensure the carriage is not obstructed. Power cycling the printer after these steps is crucial.