Oki B4100 - Manual (Page 294)

40055101TH Rev.4 294 /
7.2.6 Auto Dial Failure
Start
Test other fax machines
under the same
conditions. Do they
dial automatically?
Each location causes
the problem?
Solved?
No
Yes
No
1. Check the line cable.
2. Check the exchange.
Check the following items:
* Off-hook bypass OFF (TF No. 20)
* MF/DP (Dial parameter)
* DP rate (Dial parameter)
* DP make ratio (Dial parameter)
* Dial type (Dial parameter)
* Other dial parameters
Note: TF=Technical function
Yes
No (Others cannot dial
automatically either)
Can you hear dial tone when
lifting up your handset?
Check pulse dial/tone dial, dial rate, etc.
Check closed network.
Return to section 7.2.1
Hang up external
telephone set
Manual dial OK?
DIALING on LCD?
TELEPHONE BUSY
on LCD?
(Note 1)
Replace NCU Board.
Solved?
Replace MCNT Board.
Check the following items:
* Programmed one-touch keys
* Programmed two-digit auto dial
code
Yes
Solved?
Yes
No
No
Yes
Yes
Yes
No (Only specific
locations)
Yes
Yes
No
No
Note 1:
No
If you do not have any other fax machine
(OKIFAX 5000 series) for testing, follow
this route. Then, if the problem is unsolved,
return to the main route.
Note 2: NCU Board is shown as UNC for US
version, WN5 for INT'L version, DN5
for FTZ version and FN5 for U.K. and France