When the Home Screen Cannot Be Edited
Message Causes Solutions
"The image data size is not
valid. See the manual for
required data."
The image data size is not
valid.
For details about file size for shortcut
image, see "Displaying the Image on
the [Home] Screen", Convenient
Functions .
"The format of the image
data is not valid. See the
manual for required data."
The file format of the shortcut
image to be added is not
supported.
The file format of shortcut images to be
added must be PNG. Specify the
image again.
When the Address Book Is Updated
Message Causes Solutions
"Updating the destination list
has failed. Try again?"
A network error has
occurred.
• Check whether the server is
connected.
• Antivirus programs and firewalls
can prevent client computers from
establishing connection with this
machine.
• If you are using anti-virus
software, add the program to the
exclusion list in the application
settings. For details about how to
add programs to the exclusion
list, see the anti-virus software
Help.
• To prevent a firewall blocking the
connection, register the machine's
IP address in the firewall's IP
address exclusion settings. For
details about the procedure for
excluding an IP address, see your
operating system's Help.
10. Troubleshooting
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