dave@sam.cs.olemiss.edu (11/01/90)
We have installed a Postscript card in one of our LaserJet II's and wish to set up LPD to handle Postscript and HP style files. The key is the printer defaults to Postscript and postscript output is easy, but HP output must switch the mode before printer (and maybe afterwards). Having two queues pointing to the same device will not work (I dont think) because output may be mixed since each daemon does not know of the other one. Has anyone attempted such a setup? I assume so since this setup seems to be evermore popular. If so, how is it done? This is the opposite problem from the one PLP solves: That is, multiple printers on one queue. Thanks for any information. dave
ooms@delgeo.UUCP (Frank Ooms) (11/01/90)
In article <24906@adm.BRL.MIL> dave@sam.cs.olemiss.edu writes: > > [stuff deleted] > >Having two queues pointing to the same device will not >work (I dont think) because output may be mixed since each daemon does >not know of the other one. > we do this with bsd lpd(8) using two (or more queues) to the same device. The output of each printjob will come out seperately, since the open(2) on the print/plotter device prevents other programs from sending data to that device. We found that is not unwise to have only one queue started, but this because we have to operate some switch before the second queue should run. Now, I heard that it is possible to have two spooling directories for one queue. This enables the submission of priority jobs to the queue without having to go through the queue shuffle of topq for every job. has anyone ever hacked lpr/lpd to do this? -- /* Frank Ooms, +31 15-621554 * * ooms%delgeo@nluug.nl * * ooms@delgeo.uucp * * ..!mcsun!hp4nl!delgeo!ooms */