Canon imageRUNNER ADVANCE DX 6780i Foire Aux Questions page 27

If you are using an optical line or IP
telephone line
Communication errors may occur
depending on the line quality.
For more information, contact your
telephone carrier.
Reduce the fax transmission
speed.
Reducing the fax transmission
speed may result in a
communication error reduction.
1. Press
2. Press [Function Settings] [Send]
[Fax Settings].
3. Press [TX Start Speed].
4.
Select a slower speed than the current
one.
5.
Press
P O I N T
You can also set the transmission
speed from the preferences for the
address book or one-touch buttons.
For more information User's Guide
If You Cannot Receive Faxes
1
Solution
Delete unnecessary documents in the
memory to increase the free space.
1. Press
2.
Press [Fax/I-Fax Inbox] [Memory RX Inbox]
[Memory RX Inbox].
3. Select unnecessary
documents.
4. Press
5. Press [Yes].
2
Solution
Find the remedy using the number
that follows the letter "#."
If sending or receiving of a fax fails, a
number following "#" (error code) is
displayed on the touch panel display or in
the communication management report.
You can find the remedy using the error
code.
Countermeasures for Each Error Code
User's Guide
10H4-0JX
How to use the search number
Search
P.43
27