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CHAPTER 6: EPS Configuration
1. Flow control must be enabled; if any characters are lost in transmission,
the entire job will likely fail and the printer may hang. X-ON/X-OFF
(the default on the EPS) is acceptable.
2. 8-bit characters (also the default) must be enabled for PostScript jobs to
be sent to the printer correctly. Again, your jobs may be corrupted if the
printer uses 7-bit characters. Many printers have 7-bit as the default, so
consult your printer documentation.
3. PostScript is a “verbose” print language, and download images are
frequently very large. For better printing performance, set the speed
of the printer and EPS serial port as high as possible.
The SHOW PROTOCOLS APPLETALK command shows all current
configuration and counters for the AppleTalk protocol handler on the EPS.
SHOW QUEUE will show any currently queued or active AppleTalk print
jobs. Because of the handling of AppleTalk jobs, the node shown as queued
in the SHOW QUEUE display may not be the next one that ends up printing.
Any AppleTalk client that has been waiting longer will gain control of the
print resource, regardless of ranking in the SHOW display.
6.8 LAT Configuration
You may wish to change the EPS’s node name and/or identification string
(SET/DEFINE SERVER NAME or IDENTIFICATION) to make configuration
of your LAT hosts more convenient.
Depending on your network, you may also wish to change the LAT timers
and limits (multicast, keepalive, retransmit limit, and node limit) to suit your
site.
You can change the group codes for both the server and ports (SET
SERVER GROUPS, DEFINE PORT AUTHORIZED GROUPS) to restrict
access to a subset of the LAT nodes on the network.
Since the EPS’s services do not have LAT enabled by default, the EPS will
not announce their names and thus the service names will be invisible to
other LAT nodes. If you wish to make the services visible, use the SET
SERVICE LAT ENABLED command to re-enable LAT access.
You can configure your LAT hosts to use the EPS’s port names rather than
the service names, so LAT access is still possible even if the service multicasts
are disabled.