Brother MFC-8510DN, Service Manual

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Confidential
„
Error code 9300
When printing from the MP tray, the MP paper empty sensor detected that there was no
paper set in the MP tray.
„
Error code 9400
When printing from paper tray 1, the T1 paper feed sensor detected that there was no paper
set in paper tray 1.
No Paper
Load #S paper in MP Tray.
<User Check>
• Set the paper in the MP tray.
Step Cause Remedy
1
MP paper empty actuator 1 or 2
caught in some sections of the
machine Reattach the MP paper empty actuator 1 or 2.
2
MP paper empty actuator 1 or 2
failure Replace the MP paper empty actuator 1 or 2.
3
MP paper empty sensor failure Refer to "1.3.10 Check sensor operation
(function code: 32)" in Chapter 5 to check the
sensor operation. If the sensor operation is
faulty, replace the MP paper empty sensor
PCB ASSY.
4
High-voltage power supply PCB
failure Replace the high-voltage power supply PCB
ASSY.
5 Main PCB failure Replace the main PCB ASSY.
No Paper
Load #S paper in #T1.
<User Check>
• Set the paper in paper tray 1.
Step Cause Remedy
1
Connection failure of the T1
paper feed sensor harness Check the connection of the T1 paper feed
sensor PCB harness, and reconnect it if
necessary.
2
T1 paper feed actuator caught
in some sections of the machine Reattach the T1 paper feed actuator.
3 T1 paper feed actuator failure Replace the T1 paper feed actuator.
4
T1 paper feed sensor failure Refer to "1.3.10 Check sensor operation
(function code: 32)" in Chapter 5 to check the
sensor operation. If the sensor operation is
faulty, replace the T1 paper feed sensor PCB
ASSY.
5
High-voltage power supply PCB
failure Replace the high-voltage power supply PCB
ASSY.
6 Main PCB failure Replace the main PCB ASSY.