Brother HL-5440D Service Manual page 84

Error code 9A00
Manual Feed
There is no paper set in the MP tray when feeding from the MP tray is designated from the driver.
Step
MP paper empty actuator 1 or 2
1 caught in some sections of the
machine
Failure of MP paper empty
2
actuator 1 or 2
MP paper empty sensor failure
3
High-voltage power supply PCB
4
failure
5 Main PCB failure
Error codes 9B00 to A000
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
Cause
Reattach the MP paper empty actuator 1 or 2.
Replace the MP paper empty actuator 1 or 2.
Refer to
(function code: 32)" in Chapter 5
sensor operation. If the sensor operation is
faulty, replace the MP paper empty sensor
PCB ASSY.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
2-48
Remedy
"1.3.8 Check sensor operation
Remedy
to check the
Confidential