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Brother HL-5440D Service Manual Page 77

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Error code 8400
Jam Rear
The eject sensor remains ON (paper pass detected) for more than the specified time even
after the registration rear sensor detected the end of paper pass.
<User Check>
• Remove the paper jammed in the rear section of the machine.
Step
Foreign object in the rear of the
1
machine
Eject actuator caught in some
2
sections of the machine
Eject sensor failure
3
4
Main PCB failure
CAUTION:
• Do not use a sharp tool such as tweezers or screwdriver to remove the jammed paper.
Error code 8500
No Tray
The T1 paper feed sensor detected that paper tray 1 was not set.
<User Check>
• Set paper tray 1 correctly.
Step
T1 paper feed actuator caught
1
in some sections of the machine
T1 paper feed sensor PCB
failure
2
High-voltage power supply PCB
3
failure
4
Main PCB failure
Cause
Remove the foreign object.
Reattach the eject actuator.
Refer to
(function code: 32)" in Chapter 5
sensor operation. If the sensor operation is
faulty, replace the eject sensor PCB ASSY.
Replace the main PCB ASSY.
Cause
Reattach the T1 paper feed actuator.
Refer to
(function code: 32)" in Chapter 5
sensor operation. If the sensor operation is
faulty, replace the T1 paper feed sensor PCB
ASSY.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
2-41
Remedy
"1.3.8 Check sensor operation
Remedy
"1.3.8 Check sensor operation
to check the
to check the
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