Black Level Value Abnormal During Scanning - Brother MFC Series Service Manual

■ Error Code BD
Unable to Scan BD

Black level value abnormal during scanning.

Step
1 Black level data failure
2 CIS unit defective
3 Main PCB defective
■ Error Code DF
Unable to print DF
Modem communication failed.
Error Code E0
Unable to print E0
Modem does not start normally even after resetting the modem.
Step
MJ PCB harness connection
1
failure
2 MJ PCB defective
3 Main PCB defective
■ Error Code E3
Unable to print E3
Wireless LAN MAC address unregistered, Wireless LAN PCB initialization failed.
Step
1 Wireless LAN PCB ASSY
connection failure
2 Wireless LAN PCB ASSY
defective
3 Main PCB defective
Cause
Acquire white level data.
(Refer to
Replace the CIS unit.
Replace the Main PCB ASSY.
Cause
Reconnect the MJ PCB harness.
Replace the MJ PCB ASSY.
Replace the Main PCB ASSY.
Cause
Reconnect the Wireless LAN PCB ASSY.
Replace the Wireless LAN PCB ASSY.
Replace the Main PCB ASSY.
2-43
Solution
Chapter 5, Section 1.4.15)
Solution
Solution
LCD
LCD
LCD
LCD
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