Message Cause Solution
"HDD is full. (Auto)" The hard disk became full while
using the error job store function
to store Normal Print jobs as
Hold Print files.
• Delete unneeded files
stored in the printer.
• Reduce the data size of the
Temporary Print file
and/or the Stored Print
file.
"I/O buffer overflow." An input buffer overflow
occurred.
• Select [Font Priority] for
[Memory Usage] in
[System].
• In [I/O Buffer] under the
[Host Interface] menu, set
the maximum buffer size to
a larger value.
• Reduce the number of files
being sent to the printer.
"Information for user
authentication is already
registered for another user."
The user name for LDAP
Authentication or Integration
Server Authentication was
already registered in a different
server with a different ID, and a
duplication of the user name
occurred due to a switching of
domains (servers), etc.
For details about User
Authentication, see Security
Guide.
When Messages Are Displayed
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