Canon iR4570 Series Service Manual page 797

Cause
The i-fax address or the condition settings of
the target may be wrong, there may be a fault in
the network or the mail server, or the target may
have encountered a memory full condition, thus
causing an MDS error notice.
# 835
The number of text lines is more than the
maximum number of lines permitted for i-fax.
# 837
A request has been made by a host that comes
under the restrictions imposed by 'IP address
range setting' in user mode.
# 839
The SMTP authentication (SMTPAUTH) user
name or password for e-mail/i-fax (network
settings) may be wrong.
# 841
In relation to an attempt for transmission for e-
mail/i-fax, there is no coding algorithm that
may be used in common with the mail server.
# 842
In relation to an attempt for transmission of e-
mail/i-fax, a request has been made for the use
of a client certificate by the mail server.
# 843
The time used by the KDC (key distribution
center) server and the time used by the machine
are different significantly.
# 847
The memory of the Box has been used up, not
permitting the storage of the received file in the
fax box.
Remedy
Check the specified i-fax address and the target
conditions.
Ask the target to decrease the number of text
lines and try once again.
Check the setting of the IP address range in user
mode. The attempt to access in question may be
illegal.
Check the user name and password used for
SMTP authentication (SMTPAUTH) as part of
the network settings under system control
settings (user mode).
1. Set 'SSL' to 'OFF' as part of the network
settings under system control settings (user
mode).
2. Add a coding algorithm that may be used in
common (mail server settings).
1. Set 'SSL' to 'OFF' as part of the network
settings under the system control settings (user
mode).
2. Change the mail server settings so that it will
not request a client certificate.
1. Correct the time as part of the date/time
settings under the system control settings (user
mode).
2. Correct the time used by the KDC (key
distribution center) server.
Remove unnecessary files from the fax box or
the system box.