Lexmark Medley 4012-005, Руководство по обслуживанию

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4012-0XX
7
Service Checks
Communications Service Check
FRU Action
1 Fax or LCU Card
Cannot make telephone con-
nection to other fax machine. No dialtone
Verify correct dialing method (tone or
pulse).
TEL and LINE connections reversed.
Verify phone number and availability of
other fax machine.
Turn Call Monitoring on and listen to the
speaker during dial. You should hear the
ring and a 0.5 second 1000Hz calling tone
from your machine, a 1 second pause,
then the 3 second 2100Hz fax response
tone and a 1650Hz-1850Hz “warbling”
handshaking tone from the called
machine.
Check the connections of LCU card J2 to
fax card J11. If the problem still exists,
replace the LCU board, and then if neces-
sary, the fax board.
2 Cannot receive faxes. Machine not set for auto-answer.
TEL and LINE connections reversed.
A telephone on the same line is already
off-hook.
Machine connected to the wrong tele-
phone line.
Damaged telephone line to machine.
Check memory; faxes received during
paper jams are stored and printed after
jam is cleared.
Make sure “Receive into memory” is set to
No.
If handshaking between fax machines can
be established, the LCU board should be
OK. If necessary, replace the fax board.