[cups.general] Unable to queue from stdin-unknown

Michael Sweet msweet at apple.com
Fri Aug 26 08:25:38 PDT 2011


If you enable debug logging you might see more details in the error_log:

	cupsctl --debug-logging

I suspect the failed print requests are empty files...

On Aug 26, 2011, at 7:12 AM, Sue Toeppler wrote:

> We're running Cups 1.4.6.
> 
> We periodically receive this message when sending a print request to a network printer from a Cobol program "ERROR - unable to queue from stdin - Unknown".  The user tries again and it works ok.
> 
> This message in the error_log file appears to coincide with the error:
> 
> E [26/Aug/2011:07:42:09 -0500] Returning IPP client-error-bad-request for Send-Document (ipp://localhost:631/printers/Trailer1025) from local
> host
> 
> Any ideas as to why this happens?
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________________________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair





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