Issue
A problem has occurred in the printer's network board.
Caution
If the ERR indicator on the printer's network board is on or blinking, or if all the indicators on the network board are off, see "User's Guide" (HTML manual) in the CD-ROM supplied with the printer and solve the problem.
Cause and solution
The network board is set to the unicast communication mode.
Specify the normal mode (the broadcast communication mode). For more details, see [Using the Unicast Communication Mode] or ask your network administrator.