When You Cannot Send or Receive Fax Messages as Wanted
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When You Cannot Send or Receive Fax 
Messages as Wanted
This section explains likely causes of and possible solutions for transmission and
reception-related problems.
❖ Transmission/Reception
❖ Transmission
Problem Cause Solution
Both transmission and re-
ceiving are impossible.
The modular cord may be 
disconnected.
Make sure that the modular cord is cor-
rectly connected. See “Connecting the 
Machine to a Telephone Line and Tele-
phone”, General Settings Guide.
Problem Cause Solution
Document appears blank 
at the other end.
The original was placed 
upside down.
When the original is placed directly on 
the exposure glass, the side to be 
scanned must face down. When the 
original is fed via the ADF, the side to 
be scanned must face up.
Transmission failed due 
to “maximum e-mail 
size” error.
If the e-mail size specified 
on the machine is too 
large, the Internet Fax 
document cannot be sent.
In [Facsimile Features], under [Send Set-
tings], set [Max. E-mail Size] to [Off], or set 
the maximum e-mail size to larger val-
ue. Then, re-send the document.
When using On Hook 
Dial or Manual Dial, 
“
Receiving da-
ta...
” appears and 
transmission is not al-
lowed.
If the machine fails to de-
tect the size of the origi-
nal when {Start} key is 
pressed, it performs a re-
ceiving operation.
Press [Scan Size] in [Scan Settings], select 
the scan area, and then resend the doc-
ument. If you use On Hook Dial or 
Manual Dial frequently, it is recom-
mended that you set “Receive docu-
ments by pressing the {Start} key when 
originals are not set.” to “Off” in User 
Parameters. If this is set to “Off”, when 
using Manual Dial you cannot receive 
by pressing the {Start} key. See “Param-
eter Settings”, General Settings Guide.
LAN-Fax Driver does not 
work.
The entered login user 
name, login password, or 
driver encryption key is 
incorrect.
Check your login user name, login 
password, or driver encryption key, 
and enter them correctly. Contact the 
administrator.
LAN-Fax Driver does not 
work.
A high security level is 
set by the extended secu-
rity function.
Contact the administrator.