On Sat, 23 Nov 2019 at 10:33, Neal Becker <ndbeck...@gmail.com> wrote:
> So what to do now? On my android device, I installed a mopria app, and it > finds my brother laser printer just fine. But to print from my linux > desktop, I've never setup a system printer, just depended on printing to > google cloud via chrome. > > From what info I found via google search, cups should just work with > mopria- > enabled printers (like mine). According to articles I found cups should > just > detect it as available network printers. So I tried it. kde printer > config > and system-config-printers both detect nothing as available network > printers. > Mopria app on my android detects it just fine. Both connected to same > wifi. > Debian has a decent document on CUPS Driverless Printing <https://wiki.debian.org/CUPSDriverlessPrinting#The_Concept_of_Driverless_Printing> Driverless printing was designed for mobile devices that might encounter many different printers so could not afford the overhead of setting up individual printers. The compromise is to have a small set of capabilities that was easy for all the printer vendors to support. I have a Mopria certified printer from Canon that usually works with my wife's IOS devices, but on my desktop I use the CUPS/Gutenprint PPD for the Mopria printer. Some documents fail using Mopria but do print from Fedora or Adobe Acrobat on Windows. > Any ideas how to debug this and/or fix it? > Does the printer appear using "avahi-browse -all | grep Printer"? Mine shows up as both "Internet Printer" and "UNIX Printer". My Mopria-capable printer didn't appear using the Gnome tool in Fedora 31, but CUPS Admin <http://localhost:631/> gave me two options: Gutenprint and another that didn't use Gutenprint. I thought that might not provide the full capabilities so went with Gutenprint. -- George N. White III
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