Canon imageCLASS MF7460 imageCLASS MF7400 Series Basic Operation Guide - Page 345

Communications Settings Auto Redial Sets whether to redial automatically when the other line is busy or a transmission error occurs. (See Chapter 4, "Sending and Receiving," in the Reference Guide.) Redial Times Sets the number of retries. (1 times−10 times) Redial Interval Sets period of time before redialing. (2 min.−99 min.) Transmission Error Redial Sets whether the machine redials automatically when transmission error occurs. - On - Off Check Dial Tone Before Sending Sets whether to check the telephone line condition. - Off - On Rotate Send Sets whether to use the TX Rotation function. TX Rotation function automatically corrects the orientation of the document by rotating the image when sending. For example, if you set a document that has a horizontal orientation vertically on the machine, the machine rotates the image and sends it horizontally. You can use the TX Rotation mode for an LTR document only. The TX Rotation mode is not available if you are using the Direct Sending or Manual Sending. - On - Off RX Settings Sets the reception features. ECM RX Sets whether the ECM (Error Correction Mode) reception is activated. - On - Off Machine Settings 12‑16