I have found CUPS is more trouble than it is worth,
I find CUPS (as supplied by ArcaOS), to be simple to use, and more than capable. A couple of clicks, and start printing. Of course, I am careful to get a supported printer. I had a HP D110a, which got too expensive to support, then I got a HP OfficeJet 3830, which works very well, with CUPS. My brother has another HP printer, that works very well with CUPS. All of them are WiFi attached, which enables the built in web page, and that will do scanning for you, using a web browser.
When you use OS/2, you need to be careful what you buy.
I wonder why the installer in ArcaOS does not offer an option to install this driver.
If it isn't offered, it probably means that there is a licensing problem, or it doesn't work very well. You would need to ask Arca Noae.