Brother FAX-2840 Service Manual page 88

Error code BA
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.
---
An unidentified error occurred.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Error code BB
Scanner Error
A white level not within the standard was scanned when function code 55 was executed.
Step
1 Dirt on the pressure bar
2 CIS unit failure
3 Main PCB failure
Error code BC
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.
---
An unidentified error occurred.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Error code BD
Scanner Error
A black level not within the standard was scanned when function code 55 was executed.
Step
1 CIS unit failure
2 Main PCB failure
Cause
Replace the main PCB ASSY.
Cause
Clean the pressure bar.
Replace the CIS unit.
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
Cause
Replace the CIS unit.
Replace the main PCB ASSY.
2-51
Remedy
Remedy
Remedy
Remedy
Confidential