Service Calls - Brother HL-720 User Manual

USER'S GUIDE

Service Calls

Service Call
Drum
Alarm
Ready
Data
Service Call
Drum
Alarm
Ready
Data
Service Call
Drum
Alarm
Ready
Data
Service Call
Drum
Alarm
Ready
Data
CHAPTER 6 –4
If an unrecoverable error occurs, the printer indicates the need for a service
call by lighting all the lamps and then the following combination of lamps
alternately:
Fuser Laser BD
malfunction malfunction
D-RAM error
Service D
NV-RAM
error
If you see any of these service call indications, turn off the power switch,
wait a few seconds and then turn it on again and try to print again.
If you cannot clear the error and see the same service call indication after
turning on the printer, consult your dealer or our authorized service
representative. Report the error status and situation referring to the above
table.
Note
Be sure that the top cover and the main controller board are firmly installed.
Scanner
malfunction
Service A Service B
Service E0 Service E1
ON OFF
ROM error
Service C
Service P