Brother HL-1435 User Manual page 60

Table 1: LED indications when the service error occurs
LEDs Fuser
Malfunction
Drum
Ready
Alarm
Data
LEDs Service B
Drum
Ready
Alarm
Data
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.
Make sure that the front cover is fully closed before you report a service call.
3 - 6 CONTROL PANEL
Laser BD Scanner
Malfunction Malfunction
Engine NV-RAM
Interface Error Error
ROM Error D-RAM Error
Main Motor CPU Runtime
Malfunction Error
Service A