John Mann's Weblog (on sng)
 

String around my finger
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I work for NIS ITS Monash University Australia.

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    Wed, 08 Dec 2004

    Windows to CUPS 2

    Even after following previous instructions, I was having problems.

    After a reboot, or a cups upgrade, printing from Windows would stop working! The failure was silent from the Windows client point of view - print job just disappears!

    There is a message in /var/log/cups/error_log, e.g. 
    E [05/Dec/2004:21:12:36 +1100] print_job: Unsupported format 'application/octet-stream'!
I [05/Dec/2004:21:12:36 +1100] Hint: Do you have the raw file printing rules enabled?
    The following line from /etc/cups/mime.types was being commented out: 
    application/octet-stream
    Found offending code! "/etc/init.d/cups start" calls /usr/sbin/printconf-backend, which imports /usr/share/printconf/util/backend.py which contains: 
    def adjust_mime_types (allow_octet_stream):
    """Set or unset 'application/octet-stream' in the mime.types file.
    It needs to be set if there are any raw queues."""

    The critical part is that it unsets 'application/octet-stream' if there are no raw queues. So, define a raw queues, even if you never explicitly use it.

    [ /networks | # ]