I have a "working" Sane server for my HP USB scanner (All-in-one) but when I try to scan from my client I get the following error:
The following Sane packages are installed:
sane-daemon 1.3.1-r1
sane-frontends 1.3.1-r1
sane-hp 1.3.1-r1
sane-hp4200 1.3.1-r1
hplip-sane 3.23.12-r1
libsane 1.3.1-r1
Tue Mar 31 22:47:15 2026 daemon.info saned[6601]: scan/sane/escl.c 434: escl_open() session=0
Tue Mar 31 22:47:16 2026 daemon.info saned[6601]: io/hpmud/musb.c 428: Found interface conf=0, iface=1, altset=0, index=1
Tue Mar 31 22:47:16 2026 daemon.info saned[6601]: io/hpmud/musb.c 390: Active kernel driver on interface=1 ret=0
Tue Mar 31 22:47:16 2026 daemon.info saned[6601]: io/hpmud/musb.c 536: claimed 7/1/2 interface
Tue Mar 31 22:47:16 2026 daemon.info saned[6601]: io/hpmud/musb.c 781: read actual device_id successfully fd=1 len=276
Tue Mar 31 22:47:16 2026 daemon.info saned[6601]: io/hpmud/musb.c 562: released 7/1/2 interface
Tue Mar 31 22:47:16 2026 daemon.err saned[6601]: common/utils.c 112: unable to open /var/lib/hp/hplip.state: No such file or directory
Tue Mar 31 22:47:16 2026 daemon.err saned[6601]: common/utils.c 162: validate_plugin_version() Failed to get Plugin version from [/var/lib/hp/hplip.state]
Tue Mar 31 22:47:16 2026 daemon.err saned[6601]: common/utils.c 206: Plugin version is not matching
Tue Mar 31 22:47:16 2026 daemon.info saned[6601]: scan/sane/escl.c 89: Calling escl bb_unload:
What do I miss ?