Brother HL-1435 - Manual (Page 60)

3 - 6 CONTROL PANEL
Table 1: LED indications when the service error occurs
Make a note of the indication and report the error status to your dealer or a Brother authorized service
center by referring to the above table.
LEDs Fuser
Malfunction
Laser BD
Malfunction
Scanner
Malfunction
ROM Error D-RAM Error Service A
Drum
Ready
Alarm
Data
LEDs Service B Engine
Interface Error
NV-RAM
Error
Main Motor
Malfunction
CPU Runtime
Error
Drum
Ready
Alarm
Data
Make sure that the front cover is fully closed before you report a service call.