14 Problem Solving
420
Problem Solving
14
An incorrect fax number is 
used.
Check the fax number and try sending 
again.
The number is not for fax 
number.
If no peep sound is heard from the receiver 
when you call the number, the number is 
not for a fax number.
You forgot the external 
access number.
When calling from an extension line, the 
external access number is required.
When dialing, dial the external access 
number such as "0", and then dial the fax 
number.
When calling from an 
abbreviated telephone 
number, an external access 
number is appended.
When calling from an abbreviated 
telephone number to an external line, an 
external access number such as "0" may 
be registered for the abbreviated 
telephone number. Confirm the telephone 
number of the receiver on the 
Transmission Report - Job Undelivered.
You are using a feature 
such as the Polling feature 
that is not supported by the 
destination fax.
Confirm whether the destination fax 
supports the feature.
The Authentication/
Accounting feature is being 
used and the fax is being 
sent directly from the 
computer.
When the Authentication/Accounting 
feature is used and you send a fax directly 
from the computer, you must set the user 
ID and passcode registered on the 
machine to the fax driver.
For details on the Authentication/Accounting 
feature, refer to "Authentication and 
Accounting Features" (P.363). For details on 
how to directly send a fax from the computer, 
refer to "12 Computer Operations" > "Sending 
Fax" in the User Guide.
The image 
quality is poor.
The document glass is dirty. Clean the document glass.
Refer to "Cleaning Film and Constant Velocity 
Transport Glass" (P.83).
The fax density is 
inappropriate.
Adjust the fax density.
Refer to "4 Fax" > "Fax/Internet Fax" in the 
User Guide.
The sender's machine has a 
problem.
Confirm with the sender.
Note • Image quality may be affected by a 
problem of the sender's machine, 
not just by a problem of the 
machine.
Symptom Cause Remedy