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Bug#868360: cups-filters-core-drivers: driverless sets bizarre 600x2 resolution



On Sat, Jul 15, 2017 at 08:16:19PM +0100, Brian Potkin wrote:
> On Fri 14 Jul 2017 at 22:48:32 +0000, brian m. carlson wrote:
> 
> > This does fix the problem.  Since this printer supports PCL, I can also
> > use the hpijs-pcl5c driver in the mean time.
> 
> Is this a bug in Brother's printer? It looks like it is.

It does look like a firmware bug to report this resolution. However,
I think cups could improve upon its behavior in several ways:

* Validate data.  Nobody is going to print a two-pixel raster image, and
  cups should not accept it as a valid (and in this case, the only
  valid) option.
* Prefer PCL, PostScript, and PDF over PWG.  People specifically buy
  printers that support the former languages.  I've never heard of PWG
  raster format as a selling point.
* Use the printer resolution instead of the PWG resolution when
  generating raster images.  At the very least, these should be
  resolution options for configuration in addition to the PWG
  resolution.
* Stop suggesting driverless configurations as the recommended option if
  they're obviously broken or not going to work.
-- 
brian m. carlson / brian with sandals: Houston, Texas, US
https://www.crustytoothpaste.net/~bmc | My opinion only
OpenPGP: https://keybase.io/bk2204

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