IBM INFOPRINT 6500 - Manual (Page 260)

Chapter 9 Sharing The iSeries Printer On The Network
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8. If you are still unable to print IPDS files, contact technical
support.
Sharing The iSeries Printer On The Network
To support printer sharing, your printer automatically switches
among all attached ports (serial, twinax/coax, LAN). Basically, the
printer prints jobs for one port until no new jobs appear and the port
“times out.” The printer then switches to the next port and does the
same thing.
To change the default “time out” value for a port, update the
TIMEOUT value for the port on the appropriate menu (Serial
Interface, Ethernet Parameters, Twinax Interface, or Coax
Interface).