First Side Document Scanning Position Sensor Detects Size That Its Length Does Not Fit Duplex Scanning; Sdaa Communication Failure; Modem Does Not Start Normally Even After Resetting The Modem - Brother MFC-J2320 Service Manual

Error Code BF

MACHINE ERROR BF
First side document scanning position sensor detects size that its length does not fit
duplex scanning.
User Check
- Check whether the document scanned is longer than the specified limit.
- Remove the jammed document.
Step
1 First side document scanning
position actuator caught on the
surrounding parts
2 First side document scanning
position sensor defective
3 ADF motor defective
Document feed roller worn out
4 Main PCB defective
Error Code DF

MACHINE ERROR DF

SDAA communication failure

Error Code E0
Unable to Print E0

Modem does not start normally even after resetting the modem.

Step
1 Modem PCB defective
2 Main PCB defective
Cause
Set the first side document scanning position
actuator into place.
Replace the first side document scanning
position sensor PCB.
Replace the ADF unit.
Replace the main PCB ASSY.
Cause
Replace the modem PCB ASSY.
Replace the main PCB ASSY.
2-54
LCD
Solution
LCD
LCD
Solution
Confidential