Brother MFC-9010CN Service Manual

3-20
Confidential
■ Error code 36
Error occurs while the high-voltage power supply PCB is in ready state.
Error code 40
Error occurs while the high-voltage power supply PCB is in operation
* After the error code 36 is displayed for 5 seconds, the power of the main unit is forcibly
turned off, and it takes 10 minutes to recover.
<User Check>
- Clean the corona wire in the drum unit.
- Replace the drum unit with a new one.
■ Error code 37
Belt thermistor error
Print Unable 36
Turn the power off and then back on again.
Print Unable 40
Turn the power off and then back on again.
Step Cause Remedy
1 Dirt on drum unit electrodes Clean the electrodes of the drum unit and
main body. (Refer to Fig. 3-3 (P3-33) and
Fig. 3-6 (P3-34).)
2 Harness connection failure of
high-voltage power supply PCB
ASSY
Check the harness connection between
the high-voltage power supply PCB ASSY
and engine PCB ASSY, and the one
between the high-voltage power supply
PCB ASSY and main PCB ASSY. Then,
reconnect them.
3 HVPS control PCB failure Replace the HVPS control PCB ASSY.
4 High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
5 Engine PCB failure Replace the engine PCB ASSY.
6 Main PCB failure Replace the main PCB ASSY.
Print Unable 37
Turn the power off and then back on again.
Step Cause Remedy
1 Harness connection failure of
belt thermistor ASSY
Check the harness connection of the belt
thermistor ASSY and reconnect it.
2 Main PCB failure Replace the main PCB ASSY.

Brother MFC-9010CN Specifications

General

Brand	Brother
Model	MFC-9010CN
Category	All in One Printer
Language	English