Brother DCP-L3510CDW, Service Manual

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2-152
Confidential
4.13 Troubleshooting for Fax Problems
4.13.1 Fax cannot be sent
<User Check>
• Check that the line cord is inserted into the socket correctly.
• Check that the dial function setting (tone/pulse) is correct.
• Check that the fax document is set in the ADF correctly.
• Check that the number to be dialed is saved correctly in the telephone directory.
• Check that the receiver's machine works normally or the function you want to perform is
equipped with the receiver's machine.
• Move the machine to the other place to check whether there is any noise source near the
machine.
• Replace the telephone line.
Step Cause Remedy
1
Connection failure of the
modem flat cable Reconnect the modem flat cable.
2
Connection failure of the CIS
flat cable Reconnect the CIS flat cable.
3
Connection failure of the
panel flat cable Reconnect the panel flat cable.
4
Connection failure of the
touch panel flat cable Reconnect the touch panel flat cable.
5
Connection failure of the key
flat cable Reconnect the key flat cable.
6
Connection failure of the
document detection sensor
harness Reconnect the document detection sensor
harness.
7
Document detection actuator
coming off Reattach the document detection actuator.
8
First or second side CIS flat
cable failure Replace the first or second side CIS flat
cable.
9
First or second side CIS unit
failure Replace the first or second side CIS unit.
10 ADF drive gear failure Replace the ADF unit.
11 Document scanner unit failure Replace the document scanner unit.
12 Panel PCB failure Replace the panel PCB.
13 Key PCB failure Replace the key PCB.
14 Modem PCB failure Replace the modem PCB.
15 Main PCB failure Replace the main PCB.