Canon MX475 Online Manual page 796

Is the machine set to the appropriate receive mode?
Check10
Check the receive mode setting and change it to a mode suited to your connection if necessary.
Setting the Receive Mode
Is FAX RX reject set to ON?
Check11
Select OFF for FAX RX reject in Security control under Fax settings.
For details on how to set, see
Are there setting items set Reject in Caller rejection?
Check12
If you select Reject for any setting items in Caller rejection in Security control under Fax settings, the
machine rejects calls for setting item selected Reject.
For details on how to set, see
Machine Does Not Switch Automatically between Voice and Fax Calls
Is the receive mode set to Fax only mode?
Check
If Fax only mode is selected for Receive mode set. under FAX menu, there will be no automatic switching
between voice and fax calls.
Set the receive mode to TEL priority mode, DRPD*1, or Network switch*2.
If the receive mode is TEL priority mode and an answering machine is connected to the machine, check
whether a proper message is played back when the answering machine answers.
Setting the Receive Mode
*1 This setting is available only in the US and Canada.
*2 This setting may not be available depending on the country or region of purchase.
Quality of Received Fax is Poor
Check the scan settings of the sender's fax machine.
Check1
Ask the sender to adjust the scan settings of the fax machine.
Is ECM RX set to OFF?
Check2
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
Is the sender's original document or scanning area of the sender's fax
Check3
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.
Is ECM transmission/reception enabled although the line/connection is poor,
Check4
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.
Rejecting Fax Reception.
Using the Caller ID Service to Reject
796
Calls.