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

CHAPTER 2 INSTALLATION AND BASIC OPERATION
5.2

Data (Toner) LED Indications

The Data LED indicates the current status of the print data process.
LED
OFF
Blinking
ON
This LED also works as the Toner LED with the Alarm LED. They blink simultaneously to
indicate a toner error. See also
Error
Toner low
Toner empty
5.3

Drum LED Indications

The Drum LED indicates the drum unit is nearly at the end of its life.
LED
OFF
ON
5.4

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. Refer to
Printer status
The printer has no print data.
The printer is receiving data from the computer or the printer is
processing data in memory.
Print data remains in the printer memory. If the Data LED is on for a
long period of time and nothing has printed, you need to press the
button to print the remaining data.
Subsection 2.1 'Operator Calls' in CHAPTER 6
Action
Indicates that the toner cartridge is nearly empty. Purchase a
new toner cartridge ready for when the 'Toner empty' error is
indicated.
Replace the toner cartridge with a new one.
Printer status
The drum unit can be used.
The drum unit is nearly at the end of its life. It is recommended to
obtain a new drum unit to replace the current one.
Subsection 2.2 'Service Calls' in CHAPTER
2-14
for details.
6.