Software Setting Problems - Brother DCP-9045CDN Service Manual

5.

SOFTWARE SETTING PROBLEMS

The machine may not print the data correctly if there are incorrect software settings.
User Check
- Check that the USB cable is not damaged.
- Check that the correct machine is selected if you have an interface switching device.
- Check the descriptions on the software setting in the user's guide.
- Try resetting the factory settings.
Step
1
Failure inside the
machine
2
Machine
connection
3
USB host relay
PCB failure
4
Main PCB failure
Cause
Does the machine print
test pattern?
(Check it following the
procedure described in
"Maintenance mode
For Macintosh, has the
product ID been verified?
Is the problem solved
after replacing the USB
host relay PCB ASSY?
Is the problem solved
after replacing the main
PCB ASSY?
Check
Result
No
09".)
No
Yes
Yes
1-62
Remedy
Identify the error type,
and then refer to the
specified section of this
chapter.
Verify the product ID.
Product ID:
DCP-9045CDN: 01CB*
MFC-9840CDW: 01CC*
* Hexadecimal
Replace the USB host
relay PCB ASSY.
Replace the main PCB
ASSY.
Confidential