Dell C5765DN Dell Color Laser Multifunction Printer User's Guide - Page 529

Trouble during Faxing Symptom Cause Remedy 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.477). The image quality The document glass is dirty. is poor. 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. 529