I think it is worth landing this before the next sync as it addresses known issues.
So it would be great if someone could volunteer for testing the patch.

Hi, I tried to test it. I switched to unstable, but didn't get the new 1.26.1 package. How can I test it? Or do you mean I should test it from github?
Here is a screenshot of what I tried:

@logTom You have to build the package from this diff. It's only deployed to unstable after it is unit tested (and I can't do it since I don't have a printer).

You have to set your build environment as explained here

• Then you have to go in the directory that contains common (not inside the common directory) and clone cups-filters git clone https://dev.getsol.us/source/cups-filters.git
• Jump into the cloned repository cd cups-filters
• Apply the patch arc patch D7910
• Build the package make, this will generate the .eopkg files
• Install the package sudo eopkg it cups-filters-1.26.1-49-1-x86_64.eopkg

If it's too complicated, I'll generate the package this evening and I'll share the link.

my printer worked fine with the cups-filter version (Brother MFC-L2740DW)

@logTom here is a link for downloading the package

Then sudo eopkg it cups-filters-1.26.1-49-1-x86_64.eopkg

@kyrios123 I can confirm driverless printing works for me and all file permissions for cups and cups-filters are correct now. Thank you very much for resolving this issue!