Fax Problems; No Faxes Can Be Sent; No Faxes Can Be Received; A Communications Error Occurs - Brother MFC-J5335DW Service Manual

4.9

Fax Problems

4.9.1 No faxes can be sent

< User Check >
- Check that the line cord is inserted correctly into the socket.
- Check that the dialing function setting (tone/pulse) is correct.
- Check that the phone cord is not connected to EXT terminal.
Step
1 Modem PCB harness
connection failure
2 Control panel ASSY defective
3 Modem PCB defective
4 First side or second side CIS
unit defective
5 Main PCB defective

4.9.2 No faxes can be received

< User Check >
- Check that the line cord is inserted correctly into the socket.
- Check if the receiving mode setting is correct.
- Check that the phone cord is not connected to EXT terminal.
Step
1 Modem PCB harness
connection failure
2 Modem PCB defective
3 Main PCB defective

4.9.3 A communications error occurs

< User Check >
- Change the "compatibility" of the function menu to see if the error is cleared.
- Check that there is no noise source around this machine body.
Step
1 Modem PCB harness
connection failure
2 Modem PCB defective
3 Main PCB defective
Cause
Reconnect the modem PCB harness.
Replace the control panel ASSY.
Replace the modem PCB ASSY.
Replace the first side or second side CIS unit.
Replace the main PCB.
Cause
Reconnect the modem PCB harness.
Replace the modem PCB ASSY.
Replace the main PCB.
Cause
Reconnect the modem PCB harness.
Replace the modem PCB ASSY.
Replace the main PCB.
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Solution
Solution
Solution
Confidential