Brother HL-J6000DW Online User's Manual page 264

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b. Slowly pull the jammed paper out of the machine.
c. Close the Jam Clear Cover. Make sure the cover is closed completely.
5. If your LCD error message was [Jam MP Tray] or [Repeat Jam MP Tray], push the release lever (1)
towards the back of the machine, and then slowly pull the jammed paper out of the MP tray.
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6. Using both hands, use the finger holds on each side of the machine to lift the top cover (1) into the open
position.
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