Canon imageCLASS MF4690 Operation Manual page 251

Error Code
#0821 You have received data that cannot
be processed (TIFF analysis error).
#0827
You have received data that cannot
be processed (contains MIME
information that is not supported).
#0828 You have received HTML data.
#0829
Data containing more pages that the
machine can hold in the memory is
received.
#0839
The user name or password for
the SMTP authentication in <SMTP
AUTH> is incorrect.
11-28
Description Action
Check the settings, and then ask the
sender to resend the data.
Check the settings, and then ask the
sender to resend the data.
Ask the sender to use a file format
other than HTML, and then resend the
data.
Print the received documents, and ask
the sender to resend the remaining
pages.
Check the user name and password
for <SMTP AUTH> in <AUTH/ENC
SETTINGS> in <E-MAIL/I-FAX> in
<NETWORK SETTINGS> in <SYSTEM
SETTINGS>. (See "SYSTEM SETTINGS,"
on p. 12-33.)