Compaq 5531, 5532, 5525B user manual Npd Pseudo-device Interface, Starting npd

Chapter 5 Configuring the Internal Ethernet Adapter for TCP/IP

For example:

#END_MARK_1

NPDIR_PATH=./usr/local/bin

COMM_PROG=rcmdsh

UNIT_NAME=spike

LP_DEST=d1prn

PRINTER_TYPE=hp

BANNERPAGE=1

#START_MARK_1

NOTE: Additional variables can also be identified within this variable section as indicated by BANNERPAGE=1. Some other options include ASCII to PostScript conversion, carriage return insertion, and scrambling. By setting a particular variable to 1, this option is then turned on and a 0 turns it off.

3.Create the dummy output device used as a locking mechanism between contending print jobs.

touch /dev/spike.prn chmod go+rw /dev/spike.prn

4.Install a new printer specifying printer name, interface script name, and dummy device.

/usr/lib/lpadmin -php -mnpr.if -v/dev/spike.prn

5.Start the scheduler lpsched

6.Enable the printer and allow it to accept requests. enable hp

accept hp

7.Print a file with the following syntax: lp -dprintername filename

npd Pseudo-device Interface

The npd pseudo-tty daemon is used when bi-directional communication is required between printer and printing application, and when changes to the printer’s interface script are undesirable.

Some applications such as Sun NeWSprint work best with a bi- directional communication channel to the printer because they can provide more details on the printer status. npd is used in this case using the TCP protocol and pseudo-tty device drivers.

Starting npd

166