Panasonic DP-MB251CX Operating Instructions Manual page 121

Problem
The printing quality of the
received documents is poor.
The other party complains
that they cannot send a
document.
I cannot select the desired
receiving mode.
When an extension telephone
is connected, I cannot receive
documents by pressing
MGNMBNM9N.
I cannot hear a dial tone.
I cannot make calls.
The unit does not ring.
The other party complains
they only hear a fax tone and
cannot talk.
The MREDIALN or MVN button
does not function properly.
Cause & Solution
R If documents can be copied properly, the unit is working normally. The other
party may have sent a faint document or there may be something wrong
with the other party's machine. Ask them to send a clearer copy of the
document or to check their fax machine.
R If documents cannot be copied properly, refer to "14.4.2 Printing
problems", page 117.
R The memory is full of received documents due to a lack of recording paper
or a recording paper jam. Load paper (page 30) or remove the jammed
paper (page 127).
R If the PC fax setting (feature #442 on page 81) is set to "ALWAYS", check
the connection between the computer and the unit.
R If the fax preview mode (feature #448 on page 65) is set to "ON", use the
web browser on the computer connected via the LAN to view, print or save
the documents, and then erase unnecessary documents (page 66).
R The unit is not in FAX ONLY mode. Press MFAX AUTO ANSWERN
repeatedly to turn ON the MFAX AUTO ANSWERN light.
R If you want to set FAX ONLY mode:
– press MFAX AUTO ANSWERN repeatedly to turn ON the MFAX AUTO
ANSWERN light.
R If you want to set TEL mode or TEL/FAX mode:
– select the desired mode using feature #404 (page 78), and press MFAX
AUTO ANSWERN repeatedly to turn OFF the MFAX AUTO ANSWERN
light.
R The Distinctive Ring of feature #430 is activated (page 70).
R You must set remote fax activation to ON (feature #434 on page 80)
beforehand.
R Press MGNMBNM9N firmly.
R You may have changed the remote fax activation code from MGNMBNM9N
(default setting). Verify the remote fax activation code (feature #434 on
page 80).
R The telephone line cord is connected to the [EXT] jack on the unit. Connect
to the [LINE] jack (page 20).
R If you use a splitter/coupler to connect the unit, remove the splitter/coupler
and connect the unit to the wall jack directly. If the unit operates properly,
check the splitter/coupler.
R Disconnect the unit from the telephone line and connect a known working
telephone. If the working telephone operates properly, contact our service
personnel to have the unit repaired. If the working telephone does not
operate properly, contact your telephone company.
R The power cord or telephone line cord is not connected. Check the
connections (page 20).
R If you connected the unit through a computer modem, connect the unit
directly to a telephone line jack.
R The dialling mode setting may be wrong. Change the setting (feature #120
on page 71).
R The ringer volume is turned OFF. Adjust it (page 22).
R FAX ONLY mode is set (page 60). Tell the other party the number is only
used for faxes.
R Change the receiving mode to TEL mode (page 61) or TEL/FAX mode
(page 61).
R If you use a Distinctive Ring service, make sure you have set the same ring
pattern assigned by the telephone company (page 70).
R If this button is pressed during dialling, a pause will be inserted. If pressed
immediately after a dial tone is obtained, the last number dialled will be
redialled.
14. Help
121