Service Call Indications - Brother HL 1240 - B/W Laser Printer Service Manual

Service call indications

If an unrecoverable error occurs, the printer will indicate the need for a service call
by illuminating all the LEDs and then the following combination of LEDs
alternately:
For example, the following are the indications when a Fuser malfunction error
occurs.
Service Call
Drum
Ready
Alarm
Data
Service Call
Drum
Ready
Alarm
Data
Service Call
Drum
Ready
Alarm
Data
Drum
Ready
Paper
Alarm
Toner
Data
Fig. 4-2 LED indications caused by a fuser malfunction error
Fuser Laser BD
malfunction malfunction
D-RAM Service A
error
NV-RAM Main motor
error malfunction
4-4
Drum
Ready
Paper
Alarm
Toner
Data
Scanner ROM error
malfunction
Service B Engine
Interface
error
CPU runtime
error