I added two printers through CUPS' web interface (localhost:631) using the PPD driver file which I downloaded (from openprinting.org): one called ljet4 (which calls Ghostscript) and one called Postscript (which just calls `cat`)⁰. The latter worked.
But although I was expecting commit 1728c411718e3b358c06561d6e80b47d7b331617¹ to fix this issue, when I try the ljet4² driver, I still get this error in /var/log/cups/error_log³: sh: gs: command not found Process is dying with \"Unable to determine number of pages, page count: -1 \", exit stat 3 Is anybody able to reproduce this issue? How can I be sure that the cups-service I'm running is the recent one which includes that commit? (I tried pulling guix and rebuilding the system afterwards and restarting cups-service afterwards.) What am I doing wrong? ⁰: https://www.openprinting.org/ppd-o-matic.php?driver=Postscript&printer=Kyocera-FS-920&show=1 ¹: https://git.savannah.gnu.org/cgit/guix.git/commit/?id=1728c411718e3b358c06561d6e80b47d7b331617 ²: https://www.openprinting.org/ppd-o-matic.php?driver=ljet4&printer=Kyocera-FS-920&show=1 ³: http://sprunge.us/EMbF -- mekeor ~ EDD3 DFFA 76F6 11C0 145F 9A99 AC85 BAD8 A2F8 C868