The Fan Does Not Work; Pickup Function Of Paper Tray Does Not Work - Brother DCP-9010CN Service Manual

12.2 The Fan does not Work.

Step
1 Harness
connection failure
of the appropriate
fan
2 Failure of the
appropriate fan
3 Engine PCB failure
4 HVPS control PCB
failure
5 High-voltage power
supply PCB failure
6 Low-voltage power
supply PCB failure
7 Main PCB failure

12.3 Pickup Function of Paper Tray does not Work.

Step
1
2
3
4
Cause
Is the harness of the
appropriate fan
connected correctly?
Is the problem solved
after replacing the
appropriate fan?
Is the problem solved
after replacing the
engine PCB ASSY?
Is the problem solved
after replacing the
HVPS control PCB
ASSY?
Is the problem solved
after replacing the
high-voltage power
supply PCB ASSY?
Is the problem solved
after replacing the
low-voltage power
supply PCB ASSY?
Is the problem solved
after replacing the main
PCB ASSY?
Cause
Link lever catching on some position
Pickup roller holder ASSY not
operating smoothly or catching.
Roller holder ASSY failure
Paper feed motor failure
Check
Result
No
Yes
Yes
Yes
Yes
Yes
Yes
Re-assemble the link lever.
Make sure correct movement of the
pickup roller holder ASSY.
Replace the roller holder ASSY.
Replace the Paper feed motor ASSY.
3-107
Remedy
Reconnect the harness
of the appropriate fan
correctly.
Replace the appropriate
fan.
Replace the engine
PCB ASSY.
Replace the HVPS
control PCB ASSY.
Replace the high-
voltage power supply
PCB ASSY.
Replace the low-voltage
power supply PCB
ASSY.
Replace the main PCB
ASSY.
Remedy
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