Brother HL-3170CDW - Manual (Page 175)

Troubleshooting
169
5
Paper is jammed inside the machine
5
If the LCD shows Jam Inside, follow these steps:
a Leave the machine turned on for 10 minutes for the internal fan to cool the extremely hot parts inside the
machine.
b Open the top cover until it locks in the open position.
WARNING
HOT SURFACE
After you have just used the machine, some internal parts of the machine will be extremely hot. Wait for the
machine to cool down before you touch the internal parts of the machine.