Fujitsu FI-6010N Operator's Manual page 604

Code
1204000F
12040010
12040011
568
Message
Access to network folder was
refused. The specified account
is currently locked out.
Access to network folder was
refused. Login is not possible at
this time.
"Save as:" filename contains
invalid characters (:*?"<>|), or
is set to a reserved string (CON,
PRN, AUX, CLOCK$, NUL,
COM0, ..., COM9, LPT0, ...,
LPT9).
Re-enter the filename and try
again.
Action
Contact a network administrator to have
the account unlocked.
Try the following:
Try again when login is possible.
Contact a network administrator to have
the time setting changed.
Do not use the following symbols or
character strings:
: * ? " < > | CON PRN AUX CLOCK$
NUL COM0 ... COM9 LPT0 ... LPT9
Re-enter the file name using only valid
characters.