Brother MFC-9130CW Service Manual page 81

■ Error code 4001
Drum End Soon:BK
-
Number of the drum unit (Black) rotations reaches the upper limit soon.
Error code 4002
Drum End Soon:Y
-
Number of the drum unit (Yellow) rotations reaches the upper limit soon.
Error code 4003
Drum End Soon:M
-
Number of the drum unit (Magenta) rotations reaches the upper limit soon.
Error code 4004
Drum End Soon:C
-
Number of the drum unit (Cyan) rotations reaches the upper limit soon.
<User Check>
- Prepare a new drum unit.
Step
1 Main PCB failure if the error code
remains after replacing with a
new drum unit and resetting the
drum counter
Cause
2-42
Remedy
Replace the main PCB ASSY.
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