[cups.general] compression=gzip and RAW Print Queues (ipp)

Michael Sweet msweet at apple.com
Fri Sep 30 08:49:03 PDT 2011


Hmm, try using a simple interface script with the queue to force decompression, e.g.:

    "printer.sh"
    #!/bin/sh
    cat $6

Then run:

    lpadmin -p printer -i printer.sh

On Sep 30, 2011, at 5:30 AM, Andrew Powell wrote:

> Would there be a way to modify the PPD file so it would get decompressed 
> and sent to the printer without any further processing?
> 
> If the printer was setup as a Generic Text-Only printer, what would need 
> to change in the /etc/cups/ppd/jaxshop.ppd file so no post-processing 
> would occur?  Could something like this even work?
> 
> On 9/29/11 2:53 PM, Andy Powell wrote:
>> How do I get CUPS to decompress compressed data for Raw printers?
>> 
>> In the main office, I have ipp://remote.mydomain.com:631/printers/jaxshop?compression=gzip which is just a raw print queue.
>> 
>> And in the remote office, I have socket://jaxshop.mydomain.com:9100
>> 
>> When set to Raw, the compressed data is sent directly to the printer (it is not decompressed) and comes out as garbage.  If it is set to the printer definition, (e.g. HP LaserJet) it decompresses but this can't be done in some cases (e.g. HP/GL and Calcomp plotters).
>> 
>> Anyone know of a fix/workaround?
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__________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair





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