On 05/02/2020 20:14, Yves-Alexis Perez wrote:
So, I'm even more confused. I've upgraded again cups-filters (to 1.27.0-2) in order to do a comparison check, and tried to print, and it did work (with the Brother PPD, unchanged).
This looks strange, there is no change in the pdftops filter which could have changed something before the last release.
Or try running the command driverlessThis doesn't return anything. My printer is on the network but I don't think it advertises itself using Bonjour/zeroconf, so I'm unsure if it'd be enough for that to find it.
driverless printing is a rather new property in network printers. It started some years ago with AirPrint to make iPhones be able to print when connecting to the local network via the WLAN of the router. Generally printers advertised to print from phones support at least one form of driverless printing, AirPrint in most cases. Typically the network printers launched in the last 5 years do driverless but your printer can be older.
"driverless" lists all IPP printers which support driverless printing. Till