my Chromebook and my Samsung SCX-4623 printer: “File is in the wrong format. Check the PPD file and try again.”

That printer is connected USB-wise to my router, a FRITZ!Box.

This is how my Macs and Windowses connect to my printer (according to router manufacturer’s instructions): The protocol is JetDirect on port 9100:

• https://en.wikipedia.org/wiki/JetDirect

The manufacturer’s instructions:

• https://en.avm.de/service/fritzbox/fritzbox-7590/knowledge-base/publication/show/12_Setting-up-a-USB-printer-connected-to-FRITZ-Box-as-a-network-printer/
• https://avm.de/service/fritzbox/fritzbox-7590/wissensdatenbank/publication/show/12_USB-Drucker-an-FRITZ-Box-als-Netzwerkdrucker-einrichten/

I tried for a while to connect through fritz.box:9100 and provide a PPD, but the Chromebook’s printer set-up kept complaining:

File is in the wrong format. Check the PPD file and try again.

Where I got the PPD from: Apparently Samsung’s printer business got moved to HP, and from their support site I downloaded a TAR file (uld_V1.00.39_01.17.tar.gz) containing a nice PPD file (uld/noarch/share/ppd/Samsung_SCX-4623_Series.ppd).

Did not help – I got to move on anyway.

“For the time being” I activated “printer sharing” on my Mac mini. After that the Chromebook found the device automatically, and the set-up suggested through IPPS etc, and everything is fine (just that another server is involved) (and presumably the Chromebook does not need a PPD):

• https://en.wikipedia.org/wiki/Internet_Printing_Protocol

This did not work out for me:

• https://dfarq.homeip.net/how-to-print-from-a-chromebook-to-an-hp-printer/

FUTURE: If I will ever have to use this printer again with my Chromebooks, I will first attach the printer usb-wise to the Chromebook, so the Chromebook will have the right driver already.