Dell C5765DN MFP Color Laser Printer - Manual (Page 531)

Trouble during Faxing
531
Unable to
communicate
(general fax)
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.479).
The image quality
is poor.
The document glass is dirty. Clean the document glass.
Refer to "Cleaning the White Chute and
Constant Velocity Transport Glass" (P.246).
The fax density is
inappropriate.
Adjust the fax density.
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