Error Codes - Brother HL-1020 Service Manual

6.2

Error Codes

In the event of a printer failure, error codes will be indicated as shown below. All the
lamps and the specific lamps are turned ON alternately. The specific combination of
lamps that are ON indicates the type of the error.
Type of error
Fuser Malfunction
Laser BD Malfunction
Scanner Malfunction
ROM Error
D-RAM Error
Service A *
Service B *
Service C
Service D
Service E0
Service E1
Service P
NV-RAM Error
CPU Runtime Error *
* Refer to the further description of these errors as follows;


Service A:


Service B:


CPU Runtime Error:
HOW THE LAMPS INDICATE AN ERROR
FUSER MALFUNCTION
Drum
Alarm
Ready
(Paper)
Data
(Toner)
Data Ready

























Address Error
Bus Error
A CPU error other than the above two defects, such as an
Illegal Instruction or Operation Overflow
Time delay
: OFF : ON
Fig. 4-9
IV-29
Alarm Drum