Trouble during Faxing
475
Problem Solving
15
Receiving Problems
If you cannot receive a fax, identify the symptom in the following table to perform the
remedy.
Communication
s other than IP
fax (SIP)
become slow
while IP fax(SIP)
transmission is
executed.
The priority of IP packet,
which is sent from the
machine, on the network
relay device (such as a
switch and router)
becomes higher than
necessary because the QoS
setting of the machine is
invalid. Or, large amounts
of buffer space is
occupied.
Decrease the value for [Prioritize IP
Packets] according to your network
environment.
z
For more information on [Prioritize IP Packets],
refer to "Prioritize IP Packets / Prioritize IP Packets
(Ethernet 1), Prioritize IP Packets (Ethernet 2)"
(P.212).
IP fax (SIP) machine is
connected to the
telephone network where
the telephone and data
networks are operated
separately.
Configure QoS setting for the entire
network environment and control traffic.
Set [Prioritize IP Packets] for QoS of the
machine.
z
For more information on [Prioritize IP Packets],
refer to "Prioritize IP Packets / Prioritize IP Packets
(Ethernet 1), Prioritize IP Packets (Ethernet 2)"
(P.212).
The image
quality is poor.
The document glass is
dirty.
Clean the document glass.
z
Refer to "Cleaning the White Chute and Constant
Velocity Transport Glass" (P.100).
The fax density is
inappropriate.
Adjust the fax density.
z
Refer to "4 Fax" > "Fax/Internet Fax" in the User
Guide.
The sender’s machine has
a problem.
Confirm with the sender.
z
Image quality may be affected by a
problem of the sender's machine, not just
by a problem of the machine.
Symptom Cause Remedy
Unable to
communicate(g
eneral fax)
The phone line is not
connected correctly.
The machine is equipped with connectors
to which to connect phone lines.
Communication is enabled only when the
phone line is connected to the correct
connector. When the cable connection is
correct, the On-hook feature allows you to
call via general lines.
Symptom Cause Remedy
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