Brother HL 4150CDN - Manual (Page 72)

Control Panel
66
3
LCD
3
The LCD shows the current machine status. When you use the buttons on the control panel, the LCD will
change.
If there are any problems, the LCD will show the error message, maintenance message, or call service
message so you will know that you need to take action. (For more information about these messages, see
LCD messages on page 140.)
Back light
3
LCD messages
3
The message on the LCD shows the current machine status during normal operation.
Ready
Ko Yo Mn Co
The o and n marks indicate the status of each toner cartridge, Black (K), Yellow (Y), Magenta (M) and Cyan
(C) (where the n means blinking). When a mark blinks (n), the indicated toner cartridge is near the end of its
life. When the replacement of a toner cartridge becomes necessary, corresponding o mark disappears.
The mark indicates the wireless signal strength with four levels. ( means no signal, means weak,
means middle, and means strong.) (HL-4570CDW(T) only)
When an error has occurred, the type of error is displayed on the first line of the LCD message at first as
shown below.
The message on the second line shows information for clearing the error.
Cover is Open
Close the Front
Light Meaning
Off The machine is off or in sleep status.
Green (General, Error, Setting) Ready to print
Printing
Warming up
There is a problem with the machine.
Choosing a menu, (Control panel menu, Reprint menu, or Direct Print menu)
Canceling the job
Pause