After Ubuntu upgrade to 22.04, the printer Nashuatech Aficio MPC2051 print only in Black/White and doesn't print in COLOR mode:
I tried to reinstall drivers.
In Ubuntu printer setup if i select 'Color' then reopening Ubuntu printer setup I always find 'Grayscale'. It doesn't store 'Color' mode.
I tried running Bash file Test_Stampa_COLORI.sh :
#!/bin/bash
lp -o ColorModel=Color -o media=a4 -o fit-to-page "test_color.pdf"
I tried also using Generic Printer Drivers.
But always print in B/W.
With 21.10 the printer works also in color mode.
Thanks to TontonManu that gave me the way.
My solution has been:
open ubuntu printer setup (pulldown menu from top right);
open additional printer setup (clicking on button right side);
open printer property from 'Printer - localhost' (right click on the printer icon);
select 'opzioni lavoro' (job option) schedule;
in this schedule select 'color' in the 'print-color-mode' field (it was monochrome by default).schedule selection
Now it's ok.
(PS: Only for notice using PDF drivers not working at all neither B/W)
This seems to be due to a bug in CUPS:
CUPS 2.4.2 creates new printers with "Option print-color-mode monochrome" as default
See also this report on Launchpad: printing PDF appears always grey, no color
A workaround suggested by a CUPS developer on GitHub is to issue the command:
lpadmin -p PRINTER -o print-color-mode-default=color
I've got exactly the same problem with several RICOH printers (IMC 3000), everything in the configuration parameters looks correct, except for the "color" setting which isn't taken in account in printer setup, as you describe it.
If anybody has any solution, I'm very interested as well.
(EDIT: I've succeeded in printing in colors, after reinstalling the printer, choosing PDF format instead of PS in the drivers list)
Solved B&W 22.04 LTS printing issue installing Gutenprint Printer Application available in the snap store. After installation, https://localhost:8000/, add the printer, and then all other apps can print in colour mode when requested (PDF, Libre and so on).