Cis Positioning Abnormal (Home Position Cannot Be Found); Level Of Second Side Cis Scan Result Is Detected As Abnormal During Fax Transmission (After Re-Try.); Black Level Value Abnormal At Scanning - Brother MFC-J2320 Service Manual

Error Code AF

Unable to Scan AF
CIS positioning abnormal (Home position cannot be found.)
Step
1 Scanner belt out of place
2 Scanner motor harness
connection failure
3 First side CIS flat cable
connection failure
4 Black reference film stained
5 First side CIS flat cable
defective
6 First side CIS unit defective
7 Scanner motor defective
8 Main PCB defective
Error Code BC

Unable to Scan BC
Level of second side CIS scan result is detected as abnormal during FAX transmission
(after re-try.)
Step
1 White level data failure
2 Second side CIS unit defective
3 Main PCB defective
Error Code BD

MACHINE ERROR BD

Black level value abnormal at scanning.

Step
1 Black level data failure
2 First side or second side CIS
unit defective
3 Main PCB defective
Cause
Set the scanner belt into place.
Reconnect the scanner motor harness.
Reconnect the first side CIS flat cable.
Clean document cover glass at black reference
film.
Replace the first side CIS flat cable.
Replace the first side CIS unit.
Replace the document scanner unit.
Replace the main PCB ASSY.
Cause
Carry out maintenance 55 to obtain white label
data.
Replace the second side CIS unit.
Replace the main PCB ASSY.
Cause
Carry out maintenance 55 to obtain white/black
label data.
Replace the first side or second side CIS unit.
Replace the main PCB ASSY.
2-53
LCD
Solution
LCD
Solution
LCD
Solution
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