:: Re: [DNG] Printing -- now works.
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Autor: Hendrik Boom
Data:  
Para: dng
Tópicos Antigos: Re: [DNG] Printing -- now a permissions problem
Assunto: Re: [DNG] Printing -- now works.
I did manage to get the printer going. I should have mentionned long
ago what the final problem was.

It turns out I was trying to print a pdf to a postscript printer. I
thought that pdf was a specialized form of postscript, the way inkscape
files are a specialized form of svg. Turns out that was completely
wrong.

The message I got from the printer was completely misleading.
Something about an invalid service ID. The service ID was valid; the
file I was sending to it was not.

Printing an actual postscript file worked just fine.

-- hedrik

On Mon, Oct 19, 2015 at 09:24:44AM -0400, Hendrik Boom wrote:
> On Mon, Oct 05, 2015 at 05:13:40PM -0400, Hendrik Boom wrote:
> > On Mon, Oct 05, 2015 at 09:47:02PM +0200, Riccardo Boninsegna wrote:
> > > On Mon, Oct 5, 2015 at 9:12 PM, Hendrik Boom <hendrik@???> wrote:
> > > > I installed lpr, and it did take a lot of cups off. Do I really need cups?
> > >
> > > Nope, especially with a Brother that's very LPR-friendly!
> > > As you found out, cups-bsd is just a port of LPR programs to CUPS.
> > >
> > > > But I still don't know how to specify my network printer.
> > >
> > > I'm not familiar at all with LPR, but I know a printcap entry for the
> > > printer is created (if it's currently connected via USB) by the
> > > driver's postinst somewhere under /opt/Brother; according to the
> > > printcap manpage, you'd have to edit the "lp" option -- the
> > > description says "local printer device, or port@host for remote"!
> >
> > Presumeably that would be port 515 at whatever the IP number for the
> > printer is. Will try that wen I'm home near the priniter again.
> >
> > And what's there in the way of termcap is a shell script
> > /opt/brother/Printers/hl3170cdw/inf/setupPrintcapij that creates a
> > termcap. I hope it will get executed at the right time. At bootup,
> > perhaps?
> >
> > I'll see when I'm home again.
>
> Hand-edited /etc/termcap:
> root@notlookedfor:/home/hendrik# cat /etc/printcap
> HL3170CDW:\
>         :mx=0:\
>         :sd=/var/spool/lpd/hl3170cdw:\
>         :sh:\
>         :lp=515@172.25.1.122:\
>         :if=/opt/brother/Printers/hl3170cdw/lpd/filterhl3170cdw:
> root@notlookedfor:/home/hendrik# 

>
> Now I get
>
> hendrik@notlookedfor:~$ lpr -h -PHL3170CDW Documents/math/Librationism=1407.3877v3.ps
> lpr: cannot open /var/spool/lpd/hl3170cdw/.seq: Permission denied
> hendrik@notlookedfor:~$
>
> This happens even if I run as root:
>
> root@notlookedfor:/home/hendrik# lpr -h -PHL3170CDW Documents/math/Librationism=1407.3877v3.ps
> lpr: cannot open /var/spool/lpd/hl3170cdw/.seq: Permission denied
> root@notlookedfor:/home/hendrik#
>
> That directory is owned by the lp daemon:
>
> oot@notlookedfor:/home/hendrik# ls -al /var/spool/lpd/hl3170cdwtotal 8
> drwx------ 2 daemon lp   4096 Oct  5 14:40 .
> drwxr-xr-x 5 root   root 4096 Oct 19 09:02 ..
> -rw------- 1 daemon lp      0 Oct  5 14:32 acct
> -rw------- 1 daemon lp      0 Oct  5 14:32 log
> -rw------- 1 daemon lp      0 Oct  5 14:32 status
> -rw------- 1 daemon lp      0 Oct  5 14:32 status.pr
> root@notlookedfor:/home/hendrik#

>
> and it contains no .seq file. Preumably that fle would be created as needed.
> And presumably the permissions are checked in some way that can exclude root.
>
> -- hendrik
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