Canon PIXMA MX922 Troubleshooting Guide - Page 116

• Check 3: Is the sender's original document or scanning area of the sender's fax machine dirty? The image quality of the fax is mainly determined by the sender's fax machine. Contact the sender and ask the sender to check whether the scanning area of the fax machine is dirty. • Check 4: Is ECM transmission/reception enabled although the line/connection is poor, or is the sender's fax machine compatible with ECM? • Select ON for ECM RX in Adv. communication settings in Advanced FAX settings under FAX settings. Advanced FAX settings • Contact the sender and ask the sender to check whether the machine is set to enable ECM transmission. If the sender's or recipient's fax machine is not compatible with ECM, the fax will be sent/received without automatic error correction. • Reduce the reception start speed on RX start speed in Adv. communication settings in Advanced FAX settings under FAX settings. Advanced FAX settings • Check 5: Did you confirm the paper and print quality settings? Print Results Not Satisfactory Cannot Receive a Color Fax • Check: Is ECM RX set to OFF? If OFF is select for ECM RX in Adv. communication settings in Advanced FAX settings under FAX settings, the machine cannot receive color faxes. The machine will disconnect the telephone line or receive color faxes in black & white according to the setting of the sender's fax machine. Set ECM RX to ON. Advanced FAX settings Errors Often Occur When You Receive a Fax • Check 1: Check the telephone line condition or the connection. If the telephone line or connection is poor, reducing the reception start speed may correct the error. Reduce the reception start speed on RX start speed in Adv. communication settings in Advanced FAX settings under FAX settings. Advanced FAX settings • Check 2: Is the sender's fax machine operating normally? Contact the sender and ask the sender to check whether the fax machine is operating normally.