Brother HL-1030, 1240, 1250 ROM error / D-RAM error / NV-RAM error, Engine interface error

CHAPTER 6 TROUBLESHOOTING

PR99210

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	No	Replace the main PCB.
		page with the method of
		Subsection 10.1 ‘Test Print
		Mode’ in this chapter?
Software bug	2	Does this problem appear	Yes	Inform the Brother office of the
		when printing specific data or		used specific data, printer
		printing under a specific		condition and system
		environment?		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	No	Replace the main PCB.
		page with the method of
		Subsection 10.1 ‘Test Print
		Mode’ in this chapter?
Software bug	2	Does this problem appear	Yes	Inform the Brother office of the
		when printing specific data or		used specific data, printer
		printing under a specific		condition and system
		environment?		environment.

M-12

Engine interface error

Possible cause	Step	Check	Result	Remedy
Fixing unit	1	Is the ground wire on the fixing	No	Secure the ground wire
ground wire		unit secured with the shoulder		correctly with the shoulder
connection		screw correctly?		screw.
Harness	2	Is the connection between	No	Reconnect the connectors
connection		connector P6 on the main PCB		securely.
failure		and connector P3 on the
		engine PCB secure?
Engine PCB	3	Is the problem solved by	Yes	Replace the engine PCB.
		replacing the engine PCB?
Main PCB	4	Is the problem solved by	Yes	Replace the main PCB.
		replacing the main PCB?

M-13

PCI BUS error (HL-1270N only)

Possible cause	Step	Check	Result	Remedy
Harness	1	Is the connection between	No	Reconnect the connectors
connection		connector P21 on the main		securely.
failure		PCB and connector P1 on the
		network board secure?
Network board	2	Is the problem solved by	Yes	Replace the network board.
		replacing the network board?
Main PCB	3	Is the problem solved by	Yes	Replace the main PCB.
		replacing the main PCB?

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