Canon iR C6800 Series Portable Manual page 165

Cause
# 705
The send operation was interrupted
because the size of the image data is larger
than the Maximum Data Size for Sending
set in E-mail/I-Fax Settings in
Communications Settings in System
Settings (from the Additional Functions
screen).
# 706
The Address Book is being imported or
exported from the Remote UI, or it is being
used by another sending component.
# 711
The inbox memory is full.
# 712
The maximum number of documents is
already stored in the inbox.
# 751
The server is not functioning. The network
is down (the server is unable to connect to
the network or was disconnected).
# 752
The SMTP server name for e-mail or I-fax
is not correct, or the server is not
functioning.
The domain name or e-mail address may
not be set. The network is down.
# 753
A TCP/IP error occurred while sending an
e-mail message. (Socket, Select error, etc.)
Remedy
Change the Maximum Data Size for
Sending setting in E-mail/I-Fax Settings in
Communications Settings in System
Settings (from the Additional Functions
screen). Select a lower resolution, or if you
are using I-fax, decrease the number of
pages containing images that you are
sending each time, so that you do not
exceed the Maximum Data Size for
Sending limit.
Wait until the Address Book import/export
function from the Remote UI or the other
sending component is complete, and try
sending again.
Erase the unnecessary documents stored in
the inbox.
Erase the unnecessary documents stored in
the inbox.
Check the recipient's address.
Check that the network is up.
Check the SMTP Server name and E-mail
Address in E-mail/I-Fax in Network
Settings in System Settings (from the
Additional Functions screen).
Check that the SMTP server is operating
properly.
Check the network status.
Check the network cables and connectors.
If the machine still does not operate
normally, turn the main power OFF, and
then back ON again.