[cups] removing 3 printer limit from 1.5.4

[Michael Sweet]

Gene,

CUPS has no three printer limit - in fact there are sites with 10s of thousands of printers, and we regularly run our automated test suite against 10,000 simulated printers.


> On Jan 26, 2018, at 4:02 PM, Gene Heskett <gheskett at shentel.net> wrote:
> 
> Greetings;
> 
> I have a Brother MFC-J6920DW, which is basically a letter sized mechanism 
> turned sideways so you can feed it tabloid paper one sheet at a time.
> 
> It also has both flatbed 11x17 scanning ability, plus an adf for more 
> normal sized papers. No duplexing available on the scanner but the rest 
> of it, except for the tabloid setting, can do full duplex.  The scanner 
> part works great with sane.
> 
> Because this printer has so many interlocking features, its not possible 
> to setup a ppd to use near all of its features because of the limitation 
> of 3 printers apparently imposed by cups, as I also have a Brother 
> HL-2140 B&W laser, that leaves me only able to setup 2 profiles for the 
> MFC-J6920DW.
> 
> I need to be able to define at least 4, maybe 5 different capability 
> profiles so that I can send the job to the correct profile for the 
> instant job. For instance, I need a totally different color profile 
> depending on the paper in the selected tray, it has 2, one is thick 
> double sided glossy photo on both sides, and tray 2 is normally loaded 
> with the usual 24 lb duplex paper.
> 
> Adding a printer simply replaces one that has already been configured, 
> and destroys the settings it had.
> 
> How can I enable the creation of these other, much needed profiles, or 
> ppd's. That directory btw is empty as they are all running on brother 
> drivers with cups-wrappers which are located in the /opt/Brother stuff 
> directory.
> 
> Help please...
> 
> -- 
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
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_________________________________________________________
Michael Sweet, Senior Printing System Engineer