Troubleshooting of Fax Functions
SM 6-81 M085/M086
Trouble –
shooting
6.10 TROUBLESHOOTING OF FAX FUNCTIONS
6.10.1 FAX CAN'T BE SENT.
User Check
Verify that the telephone cord is securely connected.
Possible cause and Remedy
1. Dial mode Setting
Can a dialing signal (PB or DP) be heard normally in each mode?
(Use telephone line emulator if required.)
Yes: Check the dialing mode setting at customer's again. Check the telephone line cord
between machine and socket.
2. Connection between main PCB and NCU PCB
Are the main PCB and NCU PCB connected correctly?
No: Reconnect the connector.
3. Connection between main PCB and control panel PCB
Are the main PCB and control panel PCB connected correctly?
No: Reconnect the connector.
4. Contact of rubber keys
Does the rubber keys work correctly?
No: Replace the rubber Keys.
5. NCU PCB
Is the problem solved after replacing the NCU PCB ASSY?
Yes: Replace the NCU PCB ASSY.
6. Control panel PCB
Is the problem solved after replacing the control panel PCB?
Yes: Replace the control panel PCB.
7. Main PCB
Is the problem solved after replacing the main PCB ASSY?
Yes: Replace the main PCB ASSY.
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