Canon MX390 series Online Manual page 70

Ask the sender to adjust the scan settings of the fax machine.
• Check 2: Is ECM RX set to OFF?
Select ON for ECM RX in Adv. communication in Adv. FAX settings under Fax settings.
If ECM RX is enabled, the sender's fax machine resends the fax after correcting errors
automatically.
Adv. FAX settings
• 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 in Adv. FAX settings under Fax settings.
Adv. 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 in Adv. FAX
settings under Fax settings.
Adv. 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 in Adv. 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.
Adv. 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 in Adv. FAX
settings under Fax settings.
Adv. 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.