Früher konnte man mit ipp-everywhere mal drucken, heute gibt der Drucker nicht mehr die korrekte Antwort bei der Einrichtung. Game over. Warum macht ihr das so - cups?

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Xavier de Maistre in an armchair, displaying his “book of discoveries”. (1860) by Veyssier, from A Journey Round my Room.
Source: University of Illinois Urbana-Champaign / Internet Archive
https://pdimagearchive.org/images/47bdf7ba-9603-4419-b0b7-1b03074c7bcc
#sex #toast #decorative #cups #gesture #chairs #ecstacy #furniture #movement #art #publicdomain
I have an old HP #Laserjet printer, so old that it passed the 10 year mark of its embedded TLS certificate on January 1st 2026. And #cups refused to connect to with a "cups-pki-expired" reason and it would then stop the printer.
Thanks to https://blog.whalan.com/2025/solving-cups-pki-expired/ I could figure out a way forward. I could regenerate the certificate on the printer. But then this was not sufficient since cups would then complain that the certificate sent back by the device differed to the certificate it had in its local store. It turns out that this store is /etc/cups/ssl/ and it was easy to identify which file to remove there.
And since the printer is stopped/paused, and we have no practical GUI to unpause it in #GNOME, it was easier to remove the printer and let cups-browsed recreate it.
First new year problem solved !
These were usually PostScript or at least PCL and these printer languages are well supported under Linux (and BSD and others), since the very beginning (> 30 years ago), when first graphical printers got supported.
For PostScript you only need a PPD file to get the full functionality working, and many of them we have already at OpenPrtinting.
For PCL there are many drivers around, find the one which suits you best.
Has appeared already some months ago. When I got note of it the first time I immediately looked up the creators on LinkedIn and invited them to connect with me, as they are using the software from OpenPrinting.
The accepted and had a video meeting with me. I explained them more about the software, to use PAPPL instead of CUPS, details how it works, ... and how they can support OpenPrinting.
Also nice showcaseable use case for us.