Reception Problem - Oki OKIFAX4550 Maintenance Manual

7.9

Reception Problem

This section explains how to localize the cause of problems occurred after completion of connection
with a remote station.
Step 1:
Set MH ONLY (Technical function
No. 12) to ON.
Yes
Step 2:
Set HIGH-SPEED MODEM RATE
(Technical function No. 13) to 4800 bps.
Yes
Step 3:
Adjust equalizing level.
(Technical function No. 20)
Yes
Step 4:
Set ECHO PROTECTION (Technical
function No. 11) to "ON".
Yes
Test other fax machine under the same
conditions, especially concerning step 1-4.
Return to section 7.1
The hardware of the troubled fax
machine may be damaged.
Go to 7.13 (High-speed Modem Test)
to localize the cause.
41309401TH Rev.4
Start
Solved?
No
Solved?
No
Solved?
No
Solved?
No
Do they receive normally?
Yes
No
Check the line and the network.
Note: Even if the high-speed modem test
results in success, 300 bps signal route
remains unchecked. In that case, the
most suspected unit is MCNT board.
230 /