samba - Mar 2006 - Samba + cups = raw postscript output

Hi, I think this is a samba problem but I'm not 100% sure :)

When I am printing with the Cups 6 driver from windows to samba, to
cups to my printer, only the postscript commands are coming out, raw.

The cups log file says it's seeing application/vnd.cups-raw, and I had
a look at a tcp dump of packets going to port 631, and indeed they do
confirm that the IPP port is being told this.

So, is samba passing the incorrect type to cups? Or could someone tell
me the process that data travels from hitting samba to get to cups?
I've looked a the cups source code but I didn't spot the API that samba
uses to communicate with it.

I have cups 1.1.22 and samba 3.0.10 on Redhat ES4.

What should I be looking for? I see that the data being passed around
appears to be valid postscript, as it starts with %!PS-Adobe-3.0

Please cc me in any replies.

Thanks,
Dave Smith

On Sat, 2006-03-04 at 08:13 +0000, Dave Smith wrote:
> Hi, I think this is a samba problem but I'm not 100% sure :)
> 
> When I am printing with the Cups 6 driver from windows to samba, to
> cups to my printer, only the postscript commands are coming out, raw.
> 
> The cups log file says it's seeing application/vnd.cups-raw, and I had
> a look at a tcp dump of packets going to port 631, and indeed they do
> confirm that the IPP port is being told this.
> 
> So, is samba passing the incorrect type to cups? Or could someone tell
> me the process that data travels from hitting samba to get to cups?
> I've looked a the cups source code but I didn't spot the API that
samba
> uses to communicate with it.
> 
> I have cups 1.1.22 and samba 3.0.10 on Redhat ES4.
> 
> What should I be looking for? I see that the data being passed around
> appears to be valid postscript, as it starts with %!PS-Adobe-3.0
> 
> Please cc me in any replies.
----
Not sure of what exactly you are referring to with cups driver...are you
using Adobe Postscript printer driver and cups generated PPD and
printing to \\samba_server\printer_share ?

if so, you don't want to have the 'raw' option enabled on the cups
printer at all (comment out the 'raw' lines in /etc/cups/mime.types
and /etc/cups/mime.convs and restart cups).

If you are referring to printing directly from Windows to port 631 on
the RHEL ES4 system, this has nothing to do with Samba at all

Craig

On Saturday 04 March 2006 03:13, Dave Smith wrote:
> When I am printing with the Cups 6 driver from windows to samba, to
> cups to my printer, only the postscript commands are coming out, raw.
Is it possible that you set up a raw printer in CUPS instead of 
associating the proper PPD with it?

It is a PS printer, right?

Did you use cupsaddsmb? If so, it would have needed to have been patched 
for the CUPS version 6 driver to properly set the printer up in Samba.

Chris