Quality Of Received Fax Is Poor - Canon PIXMA MX310 series Quick Start Manual

Cause
A paper size other than A4, Letter or
Legal* is loaded.
The machine is not set to the
appropriate receive mode.
* Legal may not be available depending on the country or region of purchase.
Machine Does Not Switch Automatically between Voice and Fax Calls
Cause
The receive mode displayed on the
bottom left of the LCD is FAXONLY.
*1
This setting is only available in US and Canada.
*2
This setting may not be available depending on the country or region of purchase.

Quality of Received Fax is Poor

Cause
ECM RX is set to OFF.
The sender's original document or fax
machine is dirty.
ECM sending/receiving is not enabled
although the line/connection is poor.
98 Troubleshooting
If a paper size other than A4, Letter or Legal* is loaded, incoming faxes are not
printed and are stored in memory. Change the paper to A4, Letter or Legal* size,
then press the OK button on the machine.
Check the receive mode setting, and change it to a mode suited to your
connection if necessary.
FAX ONLY MODE
See "If You Want to Receive Only Faxes Automatically with the Machine, or
Have a Dedicated Telephone Line for Fax Use Only:" on page 48.
TEL PRIORITY MODE
See "If You Are Using a Single Telephone Line for Faxes and Voice Calls and
Use Voice Calls More Frequently:" on page 48.
FAX PRIORITY MODE
See "If You Are Using a Single Telephone Line for Faxes and Voice Calls and
Want to Receive Faxes Automatically:" on page 49.
DRPD
See "If You Subscribe to a Distinctive Ring Pattern Detection (DRPD) Service
with Your Telephone Company (US and Canada only):" on page 50.
NETWORK SWITCH
See "If You Want the Machine to Automatically Switch between Fax and Voice
Calls by the Call Ring Patterns (Network Switch):" on page 50.
If the receive mode is set to FAX ONLY MODE, there will be no automatic
switching between voice and fax calls. Set the receive mode to TEL PRIORITY
MODE, FAX PRIORITY MODE, DRPD
If the receive mode is TEL PRIORITY MODE, connect an answering machine to
the machine and check that a message plays back when the answering
machine answers.
Set ECM RX to ON. Refer to "ECM RX" in "FAX SETTINGS" of the User's Guide
on-screen manual.
The image quality of the fax is mainly determined by the sender's fax machine.
Contact the sender and check whether the scanning area of his/her fax machine
is not dirty.
On the machine, set ECM RX to ON. Refer to "ECM RX" in "FAX SETTINGS"
of the User's Guide on-screen manual.
Contact the sender and check that his/her machine is set to enable ECM
sending.
If the sender's or receiver's fax is not ECM-compatible, the fax will be sent/
received in the standard mode.
Reduce the reception start speed. Refer to "RX START SPEED" in "FAX
SETTINGS" of the User's Guide on-screen manual.
Action
Action
*1
, or NETWORK SWITCH
Action
*2
.