Brother MFC620CN Service Manual page 329

Error Code
(Hex)
E9 Not used.
EA Document removed at
phase B.*
EB-ED Not used.
EE Playback IC error.
EF-F2 Not used.
F3, F5 Internal software error.
F4 Not used.
F6 PC interface error.
F7 Nor used.
F8 Battery harness
connection failure.
(Only in the "Maintenance
Mode")
F9-FE Not used.
FF Memory management
error.
* FAX negotiation stage between sending machine and receiving machine.
Symptom
9 - 1 6
Probable Cause
Document front sensor
actuator caught on the
surrounding parts
Document front sensor
defective
Main PCB defective
Main PCB defective
Main PCB defective
Main PCB defective
Battery harness not
inserted correctly.
Main PCB defective
Solution
Correct the surrounding
parts on which the
actuator caught.
Replace the document
front sensor.
Replace the main PCB.
Replace the main PCB.
Replace the main PCB.
Replace the main PCB.
Correct the connection.
Replace the main PCB.
Confidential