On Wed, Jun 22, 2022 at 12:43 PM Doug Herr fedoraproject.org@wombatz.com wrote:
On Wed, Jun 22, 2022, at 8:01 AM, Doug Herr wrote:
But, I checked my virtual machine to see how it is connecting to the
printer...
Brother_DCP-L2550DW_series
This seems to be a much newer printer and does have Apple AirPrint. AirPrint was introduced in 2011 to support iPads. https://openprinting.github.io/driverless/01-standards-and-their-pdls/ summarizes the differences in the various Driverless Printing implementations. PDF is supported across the board, but there are several raster formats and also PDFm which is viewable with PDF viewers, but tailored for the capabilities of specific printer models. AirPrint and IPP use different raster formats, and Apple could change the details in the future, but currently it doesn't appear to be a big deal as most printers support both and conversion from IPP to Apple raster formats just requires simplifying the header, so probably easy to implement in the printer to gain IPP support.
I just thought to check the web interface that the printer provides and I see that connection protocols can be turned off.
This is at http://%7Bprinter IP}/net/net/protocol.html
Protocol Web Based Management (Web Server) HTTP Server Settings SNMP Advanced Settings LPD Advanced Settings Raw Port IPP HTTP Server Settings <<<<<<< CUPS driverless printing AirPrint Advanced Settings HTTP Server Settings Mopria <<<<<< also a "driverless printing" protocol Web Services Advanced Settings HTTP Server Settings Mobile printing for Windows Proxy Advanced Settings Network Scan SMTP Advanced Settings FTP Server FTP Client TFTP mDNS Advanced Settings LLMNR
The only two that are unchecked for the above list are "FTP Server" and "Proxy".