Canon PIXMA MX870 - Manual (Page 1030)

Check 3: Is the sender's original document or the 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?
On your machine, select ON for ECM RX on Reception settings.
ECM RX
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.
RX start speed
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 ECM RX is set to OFF, 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.
Select ON for ECM RX in Reception settings to receive color faxes.
ECM RX
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.
RX start speed
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.
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Page 1030 of 1127 pages Problems Receiving Faxes