[cups] Correct Mimetype For Raw Printing Using ipptool

[Michael Sweet]

Franz,

> On May 30, 2018, at 1:52 AM, Pförtsch, Franz <Franz.Pfoertsch at brose.com> wrote:
> 
> Hello Matt,
> 
> I had a similar issue.
> 
> So I extended my mime.type/mime.conf for raw printing of preformatted datastream.
> 
> I opend a issue on github, 
> 
> https://github.com/apple/cups/issues/5294
> 
> but Michael closed this issue with something like 
>  raw printing is stupid.

I'm sorry if you got that impression, but that isn't what I said.

I *did* say we do not want to encourage the use of raw printing, and that dedicated label printing applications are probably better served by direct printing.

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Michael Sweet, Senior Printing System Engineer