Apple LaserWriter 12/640 PS - Manual (Page 336)

The banner page prints only the system name and the remote printer name.
The lpd printing protocol does not provide the user name or filename in a
way that can be included in the banner page.
The printer administrator forgot the password for the TCP/IP Printer Configuration Utility.
See the service information that came with your printer to learn how to get in
touch with Apple.
Sometimes printing the first page takes longer than I expect.
The LaserWriter 12/640 PS automatically goes into an energy-saving mode
after it’s been idle for a while. When you print while it’s in this mode, the
printer takes about a minute to warm up before it can print the first page.
The RARP server is not responding.
If you chose to use a RARP server to assign the printer’s IP address while
setting up the printer, but the server is not responding, follow these steps
in order:
m Verify that the rarpd daemon is running on the server. On many UNIX
systems, you can verify this by typing ps -e or ps -ax at the UNIX
prompt on the server. If the daemon isn’t running, type
/usr/etc/rarpd -a to start the daemon.
m Make sure that the server running RARP is on the same subnet as the
printer.
m Check the /etc/ethers file to verify that it contains the correct
Ethernet address and hostname.
m Check the /etc/hosts file to verify that it contains a valid IP address
and the same hostname as in the /etc/ethers file.
m Turn the printer off and then back on.
311 Fixing Other Problems