Brother MFC 9840CDW - Manual (Page 26)

Chapter 1
10
Note
When the power switch is off or the machine is in Sleep mode, the LED is off.
LED Machine Status Description
Sleep Mode The power switch is off or the machine is in Sleep mode.
Green
Warming Up The machine is warming up for printing.
Green
Ready The machine is ready to print.
Yellow
Receiving Data The machine is either receiving data from the computer,
processing data in memory, or printing data.
Yellow
Data Remaining in
Memory Print data remains in the machine memory.
Red
Service error Follow the steps below.
1. Turn off the power switch.
2. Wait a few seconds, and then turn it back on and try to print
again.
If you cannot clear the error and you see the same service call
indication after turning the machine back on, please call Brother
Customer Service. (See Brother numbers on page i.)
Red
Cover open The front cover or fuser cover is open. Close the cover.
Toner Life End Replace the toner cartridge with a new one.
Paper error Put paper in the tray or clear the paper jam. Check the LCD
message.
Scan lock Check that the scanner lock lever is released.
Others Check the LCD message.
Out of memory Memory is full.