Fax Problems - Ricoh G157 Service Manual

FAX PROBLEMS

4.8 FAX PROBLEMS
F-1
Cannot send a fax
1. Check that the telephone cord is securely inserted.
Possible cause Step
Dialing mode
setting
Connection
between
controller and
NCU PCB
Harness
between
controller and
NCU PCB
Connection
between
controller and
operation panel
PCB
Harness
between
controller and
operation panel
PCB
Contact of
rubber key
NCU PCB
Control panel
PCB
Controller
G157
CÓPIA NÃO CONTROLADA
Check
1 Dialing signal (PB or DP)
comes out normally in
each mode. (Use a
telephone line emulator
if necessary.)
2 Controller and NCU PCB
are properly connected.
3 Harness is damaged.
4 Controller and operation
panel PCB are properly
connected.
5 Harness is damaged.
6 The rubber key works
correctly.
7 Replacement of NCU
PCB solves the problem.
8 Replacement of
operation panel PCB
solves the problem.
9 Replacement of PCB
solves the problem.
CÓPIA NÃO CONTROLADA
Result
Check the dialing mode
setting at the customer's
again.
Yes
Check the telephone line
cord between the machine
and the line socket.
Fix the connection.
No
Replace the harness.
Yes
Fix the connection.
No
Replace the harness.
Yes
Replace the rubber key.
No
Replace the NCU PCB.
Yes
Replace the operation panel
Yes PCB.
Replace the BCU and/or
Yes
controller.
4-46
Countermeasure
SM