Canon iR4570 Series Service Manual page 720

Cause
The address specified for e-mail/i-fax
transmission is wrong.
# 810
When an attempt is made to receive i-fax, a
POP server connection error has occurred.
While a connection is made to the POP server,
an error has been returned by the POP server.
While a connection is made to the POP server,
a timeout error has occurred owing to a factor
associated with the server.
# 815
If a file that has been transmitted to the file
server is being printed, you will not be able to
log in to the server in question.
# 818
The data that has been received is in a format
that does not permit printing.
# 819
The data that has been received is of a type that
cannot be handled (i.e., its MIME information
is illegal).
# 820
The data that has been received is of a type that
cannot be handled (i.e., BASE64 or Unicode is
illegal).
# 821
The data that has been received is of a type that
cannot be handled (i.e., TIFF interpretation
error has occurred).
# 822
The data that has been received is of a type that
cannot be handled (i.e., the image cannot be
decoded).
# 827
Remedy
Check the address of the e-mail/i-fax in
question.
1. In user mode, check the POP server name
setting.
2. Check the operation of the POP server.
3. Check the condition of the network.
1. In user mode, check the POP server name
setting.
2. Check the operation of the POP server.
3. Check the condition of the network.
1. In user mode, check the POP server name
setting.
2. Check the operation of the POP server.
3. Check the condition of the network.
Wait a while, and then try once again. Or,
change the NetWare server settings of the
target, or stop PServer.
Ask the source to change the file format and
transmit it once again.
Ask the target to check the settings and transmit
it once again.
Ask the source to check the settings and
transmit it once again.
Ask the target to check the settings and transmit
once again.
Ask the source to check the settings and
transmit once again.