After several random tests, I found what prevents printing and displays
the error message "filter failed" in the web interface of cups:
The ppd file I used uses the postscript language, but if I use the ppd
file in PDF language, printing works:
Ricoh-MP_C3003-PDF-Ricoh.ppd: "ok"
Ricoh-MP_C3003-Postscript-Ricoh.ppd: "filter failed"
Since openprinting offers both ppd files, that's okay, but I would find
it useful to know if there is anything to specify in the guix
configuration file for postscript ppd to work.
Attachment: config.scm
;; This is an operating system configuration generated
;; by the graphical installer.
(use-modules (gnu) (gnu packages cups))
(use-service-modules desktop networking ssh xorg cups)
(operating-system
(locale "fr_CH.utf8")
(timezone "Europe/Zurich")
(keyboard-layout (keyboard-layout "ch" "fr"))
(host-name "t400")
(users (cons* (user-account
(name "christophe")
(comment "Christophe Pisteur")
(group "users")
(home-directory "/home/christophe")
(supplementary-groups
'("wheel" "netdev" "audio" "video")))
%base-user-accounts))
(packages
(append
(list (specification->package "nss-certs"))
%base-packages))
(services
(append
(list (service gnome-desktop-service-type)
(service openssh-service-type)
(set-xorg-configuration
(xorg-configuration
(keyboard-layout keyboard-layout)))
(service cups-service-type
(cups-configuration
(extensions
(list cups-filters hplip-minimal))
(server-name host-name)
(host-name-lookups #t)
(web-interface? #t)
(default-paper-size "A4"))))
%desktop-services))
(bootloader
(bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/sda")
(keyboard-layout keyboard-layout)))
(swap-devices (list "/dev/sda1"))
(file-systems
(cons* (file-system
(mount-point "/")
(device
(uuid "bfbee58e-496c-4f01-8b8a-2959c505c936"
'ext4))
(type "ext4"))
%base-file-systems)))
