Drum Led Indications; Alarm Led Indications - Brother HL 1240 - B/W Laser Printer Service Manual

Drum LED indications

The Drum LED indicates the Drum unit is nearly at the end of its life.
LED

Alarm LED indications

The Alarm LED blinks (with no other LEDs) to indicate a printer error status such
as "COVER OPEN" or "MEMORY FULL." If any other error occurs, the printer
indicates the error by blinking the Alarm LED with another LED or by printing an
error report.
4.
Printer status
The drum unit can be used.
Off
The drum unit is nearly at the end of its life. We recommend you to
On
obtain a new drum unit to replace the current one.
replace the drum unit" in Chapter 3.
For additional information, see "Control Panel Indications" in Chapter
1-31
CHAPTER 1 ABOUT THIS PRINTER
See "How to