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Unusable Device An unusable device is inserted in the
USB port.
Disconnect the device. Turn the machine off and
then on.
Unusable USB Device An unsupported USB device is inserted
in the USB direct interface.
Remove the unsupported USB device, such as a
mouse or mobile device that does not support
USB flash drive mode, from the USB direct
interface.
Hub is Unusable A hub or USB flash drive with a hub is
inserted in the USB direct interface.
Remove the unsupported device, such as a USB
hub or USB flash drive with a hub, from the USB
direct interface.
Too Many Files on
USB
Your machine cannot save to a USB
flash drive if it contains too many files.
Remove the USB flash drive, press .
Delete unused files or folders from the Brother
folder of the USB flash drive and then try again.
File Name Cannot Be
Used
The maximum sequential number for the
file name has been reached.
Press and then do one of the following:
Delete unused files from the USB flash drive
and then try again.
Change the file name. See Save Scanned
Documents on a USB Flash Drive
on page 140.
Authenticate Err The FTP user name and password you
entered are incorrect or not configured
correctly.
Confirm that the user name and password are
configured or entered correctly and then try again.
Server Time out — Check the following and then try again.
The network settings are correct.
Your wireless access point/router is turned on.
The remote FTP server is turned on.
The name (or IP address) of the FTP remote
server is correct.
Sending Error
(Scan to FTP)
— Check the following and then try again.
You have writing permission for the destination
folder.
The hard disk containing the destination folder
is not full.
(For example, if the hard disk is full, free some
disk space and then try again.)
Address Book Full
(ADS-1500W only)
The Address Book is full. Delete unnecessary E-mail addresses and then
try again.
Shortcuts Full
(ADS-1500W only)
The maximum number of shortcuts has
been reached.
Delete unnecessary shortcuts and then try again.
Error Message Cause Action