OK, merci.
Voici, donc :
fabrice@GROS-PC:~$ cat /etc/lsb-release && uname -i && groups && lsusb
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.1 LTS"
x86_64
fabrice adm cdrom sudo dip plugdev lpadmin lxd sambashare
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 010 Device 002: ID 0951:1666 Kingston Technology DataTraveler 100 G3/G4/SE9 G2
Bus 010 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 04a9:18a2 Canon, Inc. TS3300 series
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 002: ID 045e:0752 Microsoft Corp. Wired Keyboard 400
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 1915:6f02 Nordic Semiconductor ASA Wireless Receiver
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0403:c632 Future Technology Devices International, Ltd xu1541 c64 floppy drive interface
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
fabrice@GROS-PC:~$ dpkg -l | grep cnijfilter
ii cnijfilter2 5.90-1 amd64 IJ Printer Driver for Linux.
fabrice@GROS-PC:~$ dpkg -l | grep cndrvcups
cette commande ne renvoie rien
fabrice@GROS-PC:~$ dpkg -l | grep cnijfilter
ii cnijfilter2 5.90-1 amd64 IJ Printer Driver for Linux.
fabrice@GROS-PC:~$ dpkg -l | grep cndrvcups
fabrice@GROS-PC:~$ dpkg -l | grep sane
ii libsane:amd64 1.0.31+git20200905-focal2 amd64 API library for scanners
ii libsane-common 1.0.31+git20200905-focal2 all API library for scanners -- documentation and support files
ii libsane-hpaio:amd64 3.20.3+dfsg0-2 amd64 HP SANE backend for multi-function peripherals
ii sane-utils 1.0.31+git20200905-focal2 amd64 API library for scanners -- utilities
ii xsane 0.999-8ubuntu2 amd64 featureful graphical frontend for SANE (Scanner Access Now Easy)
ii xsane-common 0.999-8ubuntu2 all xsane architecture independent files
fabrice@GROS-PC:~$ sudo sane-find-scanner -q
[sudo] Mot de passe de fabrice :
found USB scanner (vendor=0x04a9 [Canon], product=0x18a2 [TS3300 series]) at libusb:001:005
found USB scanner (vendor=0x0403 [opencbm team], product=0xc632 [xu1541]) at libusb:003:002
fabrice@GROS-PC:~$ scanimage -L
Error my backend : out of memory
device `pixma:04A918A2' is a CANON Canon PIXMA TS3300 Series multi-function peripheral
device `escl:http://127.0.0.1:60000' is a ESCL TS3300 series flatbed scanner
fabrice@GROS-PC:~$ ls /etc/sane.d/
abaton.conf dc240.conf hp5400.conf mustek_usb.conf snapscan.conf
agfafocus.conf dc25.conf hp.conf nec.conf sp15c.conf
apple.conf dell1600n_net.conf hpsj5s.conf net.conf st400.conf
artec.conf dll.conf hs2p.conf p5.conf stv680.conf
artec_eplus48u.conf dll.d ibm.conf pie.conf tamarack.conf
avision.conf dmc.conf kodakaio.conf pieusb.conf teco1.conf
bh.conf epjitsu.conf kodak.conf pixma.conf teco2.conf
canon630u.conf epson2.conf kvs1025.conf plustek.conf teco3.conf
canon.conf epson.conf leo.conf plustek_pp.conf test.conf
canon_dr.conf epsonds.conf lexmark.conf qcam.conf u12.conf
canon_lide70.conf escl.conf ma1509.conf ricoh.conf umax1220u.conf
canon_pp.conf fujitsu.conf magicolor.conf rts8891.conf umax.conf
cardscan.conf genesys.conf matsushita.conf s9036.conf umax_pp.conf
coolscan2.conf gphoto2.conf microtek2.conf saned.conf xerox_mfp.conf
coolscan3.conf gt68xx.conf microtek.conf sceptre.conf
coolscan.conf hp3900.conf mustek.conf sharp.conf
dc210.conf hp4200.conf mustek_pp.conf sm3840.conf
fabrice@GROS-PC:~$ cat /etc/sane.d/dll.conf
# dll.conf - Configuration file for the SANE dynamic backend loader
#
# Backends can also be enabled by configuration snippets under the dll.d/
# directory -- third party backends can drop their configuration file in
# this in this directory, named after the backend.
#
# The next line enables the network backend; comment it out if you don't
# need to use a remote SANE scanner over the network -- see sane-net(5)
# and saned(8) for details.
net
abaton
agfafocus
apple
artec
artec_eplus48u
as6e
avision
bh
canon
canon630u
canon_dr
canon_lide70
#canon_pp
cardscan
coolscan
#coolscan2
coolscan3
#dc210
#dc240
#dc25
dell1600n_net
dmc
epjitsu
#epson
epson2
epsonds
escl
fujitsu
genesys
#gphoto2
gt68xx
hp
hp3500
hp3900
hp4200
hp5400
hp5590
hpljm1005
hpsj5s
hs2p
ibm
kodak
kodakaio
kvs1025
kvs20xx
kvs40xx
leo
lexmark
ma1509
magicolor
matsushita
microtek
microtek2
mustek
#mustek_pp
mustek_usb
mustek_usb2
nec
niash
#p5
pie
pieusb
pint
pixma
plustek
#plustek_pp
#pnm
qcam
ricoh
ricoh2
rts8891
s9036
sceptre
sharp
sm3600
sm3840
snapscan
sp15c
#st400
#stv680
tamarack
teco1
teco2
teco3
#test
u12
umax
umax1220u
#umax_pp
v4l
xerox_mfp
fabrice@GROS-PC:~$ ls /lib/udev/rules.d | grep libsane
60-libsane.rules
Voilà ! 🙂
