User guide

Troubleshooting
WorkCentre 7755/7765/7775 Multifunction Printer
User Guide
228
Fax Problems
If a fax cannot be sent or received correctly, refer to the following table, and then perform the
indicated operation. If a fax still cannot be sent or received correctly, even after performing the
described operations, contact your service representative.
This section includes:
• Problems Sending Faxes on page 228
• Problems Receiving Faxes on page 229
• Printing the Protocol Report on page 230
Problems Sending Faxes
Symptom Cause Solution
The document is not scanned. The document is too thick, too thin,
or too small.
Use the document glass to send
the fax.
The document is scanned at
an angle.
The document feeder guides are not
adjusted to the width of
the document.
Adjust the document feeder guides to
fit the width of the document.
The fax received by the
recipient is blurry.
The document is
incorrectly positioned.
Position the document correctly.
The document glass is dirty. Clean the document glass.
The text in the document is written
too faint.
Adjust the resolution. Adjust
the contrast.
There may be a problem with the
telephone connection.
Check the telephone line, and then
try sending the fax again.
There may be a problem with the
caller’s fax machine.
Make a copy to check that this
printer is operating correctly, and
then, if the copy was printed
correctly, have the recipient check
the condition of their fax machine.
The fax received by the
recipient is blank.
The document was sent with the
front side facing down (when the
document feeder is used).
Load the document to be faxed
facing up.