Brother DCP-7057 Service Manual page 72

Error code 4A
Replace Drum
Error, which cannot be specified, occurs.
Error code 4B
Replace Drum
Error, which cannot be specified, occurs.
Error code 4C
Drum End Soon
Error, which cannot be specified, occurs.
Error code 4D
Drum End Soon
Error, which cannot be specified, occurs.
Error code 4E
Drum End Soon
Error, which cannot be specified, occurs.
Error code 4F
Drum End Soon
Error, which cannot be specified, occurs.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
■ Error code 50
Replace Drum
Drum unit is at the end of life. (Printable)
<User Check>
• Prepare a new drum unit.
Step
1 Main PCB failure
Cause
Cause
2-35
Remedy
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
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