Brother 09055CDN Service Manual page 88

■ Error code 48
Replace Drum (K)
Black drum unit is at the end of life.
Error code 49
Replace Drum (Y)
Yellow drum unit is at the end of life.
Error code 4A
Replace Drum (M)
Magenta drum unit is at the end of life.
Error code 4B
Replace Drum (C)
Cyan drum unit is at the end of life.
Error code 4C
Drum End Soon (K)
The black drum unit will reach the end of life soon.
Error code 4D
Drum End Soon (Y)
The yellow drum unit will reach the end of life soon.
Error code 4E
Drum End Soon (M)
The magenta drum unit will reach the end of life soon.
Error code 4F
Drum End Soon (C)
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
2-49
Remedy
Replace the main PCB ASSY.
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