Here I learned at least something but I would like to know some more:
How to add a line printer to be accessible from unix (from the Terminal window)?
teTeX's dvips sends postscript output to lpr
but no line printer is installed. lpq tells :
lpq: lp: unknown printer
We have a HP Laserjet 4 (used up to now by our PC users)
and a "HP Laserjet 4050 Series" (with exactly this name).
Both on the Ethernet. One has an IP address
this may be the one for which at_cho_prn reports
1: 003d.06.9egHP Peripheral:LaserWriter
The LJ 4 seems to appear as host lpr in the 'Print Center'
(with an IP DNS-Adress as a name)
(but the host lpr may also be another port of the HPLJ4050 ? I connected this one by adding a new printer at the IP address via PrintCenter and do not know if this makes sense. The LJ4 seems not to be a Postscript printer /PCL only?/ )