I connected my samsung MFC through USB, and im able to print on it, but not to scan. And many times i got a message like this when sharing it on lan network through cups “Print Job was not accepted”. So im wondering, maybe installed something wrong .
my printer is the M337x-387x-407x series
But the most important point for me now is make scan to work, any help to achieve this in silverblue ?
Second question I’ve seen today about Samsung MFCs. 
What about enabling airscan. I’ve never messed with silver blue but on regular Fedora if I run
dnf install avahi sane-backends
running scanimage -L will find the scanner. For printing you should be able to use ipp everywhere. if you have cupa and cups-filters installed.
Not sure of USB printer syntax, but if your cups install shows the printer as usb://something, use that.
would not be the same of using “simple scan” (flatpak) that is a gui for sane ?
Asking because simple scan dont work for me , and wondering if would make difference installing that rpm package
I honestly don’t know. I think simplescan is a frontend for scanimage, but I’ve never used it. I haven’t used the flatpak package either, so unfortunately, I don’t have an educated answer for you.
I just posted a reply to this thread:
regarding getting my Samsung M2020 series printer working. This is a printer only not MFP but the HP/samsung driver i packaged includes the ppd for your printer and also scanner related stuff.
I have installed same packages:
Now i just plugged in my printer+scanner and run command
scanimage > my-scan and it saved the scan to a file
Maybe you need to install foo2qpdl if you have Samsung printer
