[CentOS] Slow printing to HP jetdirect from cups

[Bowie Bailey]

Peter l Jakobi wrote:
> On Tue, Sep 29, 2009 at 11:48:07AM -0400, Bowie Bailey wrote:
>   
>> I set the printer type as raw and then restarted cups just to make sure
>> the change was active.  No effect.  Still have the delays.
>>     
>
> Avoid cups for a quick test:
>
> 2 ways: 
>
> 1) get the lprng rpm and extract lpr and lpq to a
> directory, both should be usable even with little to no
> configuration aside the normal host printing setup. The 
> nice effect: things like lprng -Plj at host just work, without
> adding queues, discovery and other annoyances.
>
> 2) just ftp the file to the printer (maybe newer jetdirect
> cards also support things like ipp / http as well?).
>
> The 2nd method at least reduces the components being
> tested to the raw network connection between two boxes.
>
> And of course, effects due to funny things being printed
> (testing with multiple printers and having one set of tests
> print a single file run thru gs to produce pcl-3 or higher may 
> be a good way to detect funny postscript like strange font
> embedding (e.g. from the application/library/... on a badly
> configured client), or full color for a black&white laser, etc).
>   

I'm not sure avoiding cups would be useful.  The problem seems to be
with cups getting the print jobs from the queue to the printer.  Once
the printer finishes a job, it takes cups about 15 seconds to realize
that the printer is available for the next job.

-- 
Bowie