CHAPTER 6 TROUBLESHOOTING
6-22
M-10
ROM error / D-RAM error / NV-RAM error
Possible cause
Step
Check
Result
Remedy
Main PCB
1
Is it possible to print the test
page with the method of
Subsection 10.1 ‘Test Print
Mode’
in this chapter?
No
Replace the main PCB.
Software bug
2
Does this problem appear
when printing specific data or
printing under a specific
environment?
Yes
Inform the Brother office of the
used specific data, printer
condition and system
environment.
M-11
Service A (Address error) / Service B (BUS error) / CPU runtime error
Possible cause
Step
Check
Result
Remedy
Main PCB
1
Is it possible to print the test
page with the method of
Subsection 10.1 ‘Test Print
Mode’
in this chapter?
No
Replace the main PCB.
Software bug
2
Does this problem appear
when printing specific data or
printing under a specific
environment?
Yes
Inform the Brother office of the
used specific data, printer
condition and system
environment.
M-12
Engine interface error
Possible cause
Step
Check
Result
Remedy
Fixing unit
ground wire
connection
1
Is the ground wire on the fixing
unit secured with the shoulder
screw correctly?
No
Secure the ground wire
correctly with the shoulder
screw.
Harness
connection
failure
2
Is the connection between
connector P6 on the main PCB
and connector P3 on the
engine PCB secure?
No
Reconnect the connectors
securely.
Engine PCB
3
Is the problem solved by
replacing the engine PCB?
Yes
Replace the engine PCB.
Main PCB
4
Is the problem solved by
replacing the main PCB?
Yes
Replace the main PCB.
M-13
PCI BUS error (HL-1270N only)
Possible cause
Step
Check
Result
Remedy
Harness
connection
failure
1
Is the connection between
connector P21 on the main
PCB and connector P1 on the
network board secure?
No
Reconnect the connectors
securely.
Network board
2
Is the problem solved by
replacing the network board?
Yes
Replace the network board.
Main PCB
3
Is the problem solved by
replacing the main PCB?
Yes
Replace the main PCB.
PR99210
Содержание HL-1030
Страница 51: ...CHAPTER 3 THEORY OF OPERATION 3 9 Fig 3 8 ...
Страница 53: ...CHAPTER 3 THEORY OF OPERATION 3 11 Two 32 Mbits ROMs x 16 bit are fitted Fig 3 11 HL 1270N ...
Страница 55: ...CHAPTER 3 THEORY OF OPERATION 3 13 Two 16M bit DRAMs x 16 bits are used as the RAM Fig 3 14 HL 1250 1270N ...
Страница 122: ...CHAPTER 5 PERIODIC MAINTENANCE 5 8 ...
Страница 198: ...CODE UK4352000 B512040CIR 1 2 A 20 NAME Appendix 11 Main PCB Circuit Diagram HL 1030 1240 1 2 ...
Страница 199: ...Appendix 12 Main PCB Circuit Diagram HL 1030 1240 2 2 CODE UK4352000 B512040CIR 2 2 A 21 NAME ...
Страница 200: ...Appendix 13 Main PCB Circuit Diagram HL 1250 1270N 1 5 CODE UK4361000 B512049CIR 1 5 A 22 NAME ...
Страница 201: ...Appendix 14 Main PCB Circuit Diagram HL 1250 1270N 2 5 CODE UK4361000 B512049CIR 2 5 A 23 NAME ...
Страница 202: ...CODE UK4361000 B512049CIR A 24 NAME Appendix 15 Main PCB Circuit Diagram HL 1250 1270N 3 5 ...
Страница 203: ...CODE UK4361000 B512049CIR 4 5 A 25 NAME Appendix 16 Main PCB Circuit Diagram HL 1250 1270N 4 5 ...
Страница 204: ...CODE UK4361000 B512049CIR 5 5 A 26 NAME Appendix 17 Main PCB Circuit Diagram HL 1250 1270N 5 5 ...
Страница 205: ...Appendix 18A Engine PCB Circuit Diagram OLD CODE UK4444000 B512059CIR A 27 NAME ...
Страница 206: ...Appendix 18B Engine PCB Circuit Diagram NEW CODE UK4444000 B512059CIR A 28 NAME ...
Страница 207: ...Appendix 19 Network Board Circuit Diagram HL 1270N CODE LJ8107000 B512058CIR A 29 NAME ...
Страница 218: ...INDEX vi ...