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134 USING THE M208’S ADDITIONAL OPTIONS: General Options
Capturing Printer Feedback
One of the key aspects of maintaining a computing environment is monitoring printer
status and logging this information to useful places. The M208 allows just that
through logpaths or through a backchannel method. In addition, the Print Server’s lp
command provides parallel port printer status and job information as a user sends a
job.
Logpath Method
The easiest and most reliable method is to utilize the many logpath options available
on the Print Server. These include logging printer feedback to:
• a particular user’s email address through SMTP,
• SYSLOGD on a particular TCP/IP host,
• a TCP port number in the range of 1,024 to 65,000 to which you can telnet to,
• another I/O port where a printer or terminal is attached to display the information.
To configure any of these logpath options, please see set logpath on page 108.
I/O ports and SYSLOGD can be used to capture M208 debugging information as well
as printer logging. Please see set sysinfo on page 114 for more details.
Backchannel Method
In addition, printer feedback can be directed to a serial I/O port through the use of a
backchannel method. For example, if you like the speed of the parallel port but need
the printer status, you could set up a backchannel to one of the serial ports. From here,
you have two choices:
1 Utilize host software to obtain this data such as Adobe TranScript or Sun NeWS-
print with npd (see npd Pseudo-device Interface on page 54).
2 Make use of the I/O port’s associated destination (see list pserver on page 100)
and manipulate its logpath to use one of the choices mentioned earlier in this sub-
section.
To make use of a backchannel method, the printer must be able to support input on
one port and be able to output status on another.
Please see set dest on page 107 to configure a backchannel.
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