Re: [Gimp-print-devel] Improve print quality of Citizen CX-02

[Solomon P. <pi...@sh...>]

On Tue, Jul 09, 2024 at 08:39:54PM +0200, Foto-Stoelzle wrote:
>    When using Gutenprint, the colour is darker (more orange instead of
>    gold) and straight lines are pixelated.

First, you didn't mention what version of Gutenprint you're using.  If 
it's older than 5.3.4, then you should update as previous versions use 
the wrong gamma curve for all dye-sublimation models.

Second, are you using using Citizen's ICC profile as part of a 
color-corrected work/print flow?  If not, there is no objective basis 
for comparing the color output between Windows and Linux.

As for the jagged pixels, that's most likely due to low-quality image 
scaling.  It is always best to pre-scale the image you are printing to 
the printer's native resolution at the application layer; that way you 
have full control over how that is done.

My personal print flow uses a script to:

 * Set printer options to default to completely neutral output
 * Scale to native printer resolution
 * Apply sharpening pass
 * Apply printer ICC profile
 * Submit to printer

I do things this way to ensure I get consistent output no matter which 
of several printers is used for a particular print.

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)