Brother HL-4140CN Service Manual page 69

■ Error code 48
-
Black drum unit is at the end of life.
Error code 49
-
Yellow drum unit is at the end of life.
Error code 4A
-
Magenta drum unit is at the end of life.
Error code 4B
-
Cyan drum unit is at the end of life.
Error code 4C
-
The black drum unit will reach the end of life soon.
Error code 4D
-
The yellow drum unit will reach the end of life soon.
Error code 4E
-
The magenta drum unit will reach the end of life soon.
Error code 4F
-
The cyan drum unit will reach the end of life soon.
This error does not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
<User Check>
- Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Cause
2-38
Remedy
Replace the main PCB ASSY.
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