Brother HL 1240 - B/W Laser Printer Service Manual page 115

Type of error
Fuser Malfunction
Laser BD Malfunction
Scanner Malfunction
ROM Error
D-RAM Error
Service A *
Service B *
Engine Interface Error
Main Motor Malfunction
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 LEDs indicate an error
ex. Fuser Malfunction
Drum
Ready
Paper
Alarm
Toner
Data
Drum Ready Alarm





























Address Error
Bus Error
A CPU error other than the above two defects, such as an
Illegal Instruction or Operation Overflow
Time delay
: OFF
Fig. 6-1
6-5
CHAPTER 6 TROUBLESHOOTING
Data Remedy
See 'M-9 Fuser
See 'M-7 BD
See 'M-8 Scanner
See 'M-10 ROM
See 'M-10 D-RAM
See 'M-11 Service
See 'M-11 Service


See 'M-12 Engine interface


See 'M-3 Main motor does not


See 'M-10 NV-RAM


See 'M-11 CPU runtime
: ON
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