Brother HL-5440D Service Manual page 78

Error codes 8600 and 8700
These errors do not usually occur during normal use. The possible causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
---
An unidentified error occurred.
Step
1 Main PCB failure
Error code 8800
Jam Inside
The eject sensor does not detect paper pass after the registration rear sensor detected the
end of paper pass.
<User Check>
• Remove the paper jammed inside the machine.
Step
Foreign object inside the
1
machine
Eject actuator caught in some
2
sections of the machine
Eject sensor failure
3
4 Main PCB failure
Error code 8900
Size Error DX
The registration front sensor detected that the paper fed was smaller than or larger than the
specified size in duplex printing mode.
<User Check>
• Use A4 or Letter-size paper.
Step
Registration front actuator
1 caught in some sections of the
machine
Registration front sensor failure Refer to
2
3 Main PCB failure
Cause
Replace the main PCB ASSY.
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 registration front actuator.
(function code: 32)" in Chapter 5
sensor operation. If the sensor operation is
faulty, replace the registration front/rear sensor
PCB ASSY.
Replace the main PCB ASSY.
2-42
Remedy
Remedy
"1.3.8 Check sensor operation
Remedy
"1.3.8 Check sensor operation
to check the
to check the
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