TroubleshootingWorkCentre 7755/7765/7775 Multifunction PrinterUser Guide228Fax ProblemsIf a fax cannot be sent or received correctly, refer to the following table, and then perform theindicated operation. If a fax still cannot be sent or received correctly, even after performing thedescribed 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 230Problems Sending FaxesSymptom Cause SolutionThe document is not scanned. The document is too thick, too thin,or too small.Use the document glass to sendthe fax.The document is scanned atan angle.The document feeder guides are notadjusted to the width ofthe document.Adjust the document feeder guides tofit the width of the document.The fax received by therecipient is blurry.The document isincorrectly positioned.Position the document correctly.The document glass is dirty. Clean the document glass.The text in the document is writtentoo faint.Adjust the resolution. Adjustthe contrast.There may be a problem with thetelephone connection.Check the telephone line, and thentry sending the fax again.There may be a problem with thecaller’s fax machine.Make a copy to check that thisprinter is operating correctly, andthen, if the copy was printedcorrectly, have the recipient checkthe condition of their fax machine.The fax received by therecipient is blank.The document was sent with thefront side facing down (when thedocument feeder is used).Load the document to be faxedfacing up.