I ran sudo chown ubuntu /dev/bus/usb/001/004

Then when I run  scanimage -b > output.pmn, i get:

ubuntu@ubuntu:~$ scanimage -b > output.pmn
[14:06:35.614763] [sanei_debug] Setting debug level of dll to 128.
[14:06:35.615038] [dll] sane_init: SANE dll backend version 1.0.13 from 
sane-backends 1.0.29
[14:06:35.615117] [dll] sane_init/read_dlld: attempting to open directory 
`./dll.d'
[14:06:35.615220] [dll] sane_init/read_dlld: attempting to open directory 
`/etc/sane.d/dll.d'
[14:06:35.615314] [dll] sane_init/read_dlld: using config directory 
`/etc/sane.d/dll.d'
[14:06:35.615445] [dll] sane_init/read_dlld: done.
[14:06:35.615542] [dll] sane_init/read_config: reading dll.conf
[14:06:35.615625] [dll] add_backend: adding backend `net'
[14:06:35.615687] [dll] add_backend: adding backend `abaton'
[14:06:35.615747] [dll] add_backend: adding backend `agfafocus'
[14:06:35.615805] [dll] add_backend: adding backend `apple'
[14:06:35.615862] [dll] add_backend: adding backend `artec'
[14:06:35.615920] [dll] add_backend: adding backend `artec_eplus48u'
[14:06:35.615977] [dll] add_backend: adding backend `as6e'
[14:06:35.616035] [dll] add_backend: adding backend `avision'
[14:06:35.616091] [dll] add_backend: adding backend `bh'
[14:06:35.616149] [dll] add_backend: adding backend `canon'
[14:06:35.616206] [dll] add_backend: adding backend `canon630u'
[14:06:35.616263] [dll] add_backend: adding backend `canon_dr'
[14:06:35.616320] [dll] add_backend: adding backend `cardscan'
[14:06:35.616376] [dll] add_backend: adding backend `coolscan'
[14:06:35.616433] [dll] add_backend: adding backend `coolscan3'
[14:06:35.616491] [dll] add_backend: adding backend `dell1600n_net'
[14:06:35.616548] [dll] add_backend: adding backend `dmc'
[14:06:35.616605] [dll] add_backend: adding backend `epjitsu'
[14:06:35.616663] [dll] add_backend: adding backend `epson2'
[14:06:35.616720] [dll] add_backend: adding backend `epsonds'
[14:06:35.616778] [dll] add_backend: adding backend `escl'
[14:06:35.616834] [dll] add_backend: adding backend `fujitsu'
[14:06:35.616891] [dll] add_backend: adding backend `genesys'
[14:06:35.616950] [dll] add_backend: adding backend `gt68xx'
[14:06:35.617114] [dll] add_backend: adding backend `hp'
[14:06:35.617175] [dll] add_backend: adding backend `hp3500'
[14:06:35.617233] [dll] add_backend: adding backend `hp3900'
[14:06:35.617290] [dll] add_backend: adding backend `hp4200'
[14:06:35.617348] [dll] add_backend: adding backend `hp5400'
[14:06:35.617406] [dll] add_backend: adding backend `hp5590'
[14:06:35.617464] [dll] add_backend: adding backend `hpljm1005'
[14:06:35.617521] [dll] add_backend: adding backend `hpsj5s'
[14:06:35.617578] [dll] add_backend: adding backend `hs2p'
[14:06:35.617636] [dll] add_backend: adding backend `ibm'
[14:06:35.617693] [dll] add_backend: adding backend `kodak'
[14:06:35.617751] [dll] add_backend: adding backend `kodakaio'
[14:06:35.617809] [dll] add_backend: adding backend `kvs1025'
[14:06:35.617867] [dll] add_backend: adding backend `kvs20xx'
[14:06:35.617924] [dll] add_backend: adding backend `kvs40xx'
[14:06:35.617982] [dll] add_backend: adding backend `leo'
[14:06:35.618040] [dll] add_backend: adding backend `lexmark'
[14:06:35.618098] [dll] add_backend: adding backend `ma1509'
[14:06:35.618155] [dll] add_backend: adding backend `magicolor'
[14:06:35.618213] [dll] add_backend: adding backend `matsushita'
[14:06:35.618270] [dll] add_backend: adding backend `microtek'
[14:06:35.618336] [dll] add_backend: adding backend `microtek2'
[14:06:35.618394] [dll] add_backend: adding backend `mustek'
[14:06:35.618452] [dll] add_backend: adding backend `mustek_usb'
[14:06:35.618510] [dll] add_backend: adding backend `mustek_usb2'
[14:06:35.618609] [dll] add_backend: adding backend `nec'
[14:06:35.618651] [dll] add_backend: adding backend `niash'
[14:06:35.618690] [dll] add_backend: adding backend `pie'
[14:06:35.618772] [dll] add_backend: adding backend `pieusb'
[14:06:35.618813] [dll] add_backend: adding backend `pint'
[14:06:35.618852] [dll] add_backend: adding backend `pixma'
[14:06:35.618891] [dll] add_backend: adding backend `plustek'
[14:06:35.618930] [dll] add_backend: adding backend `qcam'
[14:06:35.618969] [dll] add_backend: adding backend `ricoh'
[14:06:35.619008] [dll] add_backend: adding backend `ricoh2'
[14:06:35.619047] [dll] add_backend: adding backend `rts8891'
[14:06:35.619086] [dll] add_backend: adding backend `s9036'
[14:06:35.619124] [dll] add_backend: adding backend `sceptre'
[14:06:35.619163] [dll] add_backend: adding backend `sharp'
[14:06:35.619202] [dll] add_backend: adding backend `sm3600'
[14:06:35.619241] [dll] add_backend: adding backend `sm3840'
[14:06:35.619281] [dll] add_backend: adding backend `snapscan'
[14:06:35.619320] [dll] add_backend: adding backend `sp15c'
[14:06:35.619359] [dll] add_backend: adding backend `tamarack'
[14:06:35.619398] [dll] add_backend: adding backend `teco1'
[14:06:35.619442] [dll] add_backend: adding backend `teco2'
[14:06:35.619482] [dll] add_backend: adding backend `teco3'
[14:06:35.619521] [dll] add_backend: adding backend `u12'
[14:06:35.619560] [dll] add_backend: adding backend `umax'
[14:06:35.619600] [dll] add_backend: adding backend `umax1220u'
[14:06:35.619639] [dll] add_backend: adding backend `v4l'
[14:06:35.619678] [dll] add_backend: adding backend `xerox_mfp'
[14:06:35.619717] [dll] add_backend: adding backend `hpaio'
[14:06:35.619756] [dll] add_backend: adding backend `hp2000S1'
[14:06:35.619795] [dll] add_backend: adding backend `hpgt2500'
Output format is not set, using pnm as a default.
[14:06:35.619897] [dll] sane_get_devices
[14:06:35.619939] [dll] load: searching backend `hpgt2500' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:35.619978] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpgt2500.so.1'
[14:06:35.620041] [dll] load: couldn't open 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpgt2500.so.1' (No such file or 
directory)
[14:06:35.620079] [dll] load: trying to load 
`/usr/lib/sane/libsane-hpgt2500.so.1'
[14:06:35.620133] [dll] load: couldn't open 
`/usr/lib/sane/libsane-hpgt2500.so.1' (No such file or directory)
[14:06:35.620172] [dll] load: trying to load 
`/usr/lib64/sane/libsane-hpgt2500.so.1'
[14:06:35.620225] [dll] load: couldn't open 
`/usr/lib64/sane/libsane-hpgt2500.so.1' (No such file or directory)
[14:06:35.620263] [dll] load: couldn't find backend `hpgt2500' (No such file or 
directory)
[14:06:35.620302] [dll] load: searching backend `hp2000S1' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:35.620340] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp2000S1.so.1'
[14:06:35.620396] [dll] load: couldn't open 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp2000S1.so.1' (No such file or 
directory)
[14:06:35.620435] [dll] load: trying to load 
`/usr/lib/sane/libsane-hp2000S1.so.1'
[14:06:35.620488] [dll] load: couldn't open 
`/usr/lib/sane/libsane-hp2000S1.so.1' (No such file or directory)
[14:06:35.620527] [dll] load: trying to load 
`/usr/lib64/sane/libsane-hp2000S1.so.1'
[14:06:35.620578] [dll] load: couldn't open 
`/usr/lib64/sane/libsane-hp2000S1.so.1' (No such file or directory)
[14:06:35.620617] [dll] load: couldn't find backend `hp2000S1' (No such file or 
directory)
[14:06:35.620655] [dll] load: searching backend `hpaio' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:35.620693] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpaio.so.1'
[14:06:35.620748] [dll] load: couldn't open 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpaio.so.1' (No such file or directory)
[14:06:35.620786] [dll] load: trying to load `/usr/lib/sane/libsane-hpaio.so.1'
[14:06:35.620847] [dll] load: dlopen()ing `/usr/lib/sane/libsane-hpaio.so.1'
[14:06:35.630624] [dll] init: initializing backend `hpaio'
[14:06:35.632246] [dll] init: backend `hpaio' is version 1.0.0
[14:06:36.677968] [dll] load: searching backend `xerox_mfp' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.678151] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-xerox_mfp.so.1'
[14:06:36.678351] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-xerox_mfp.so.1'
[14:06:36.679950] [dll] init: initializing backend `xerox_mfp'
[14:06:36.697575] [dll] init: backend `xerox_mfp' is version 1.0.13
[14:06:36.697826] [dll] load: searching backend `v4l' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.697899] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-v4l.so.1'
[14:06:36.697960] [dll] load: couldn't open 
`/usr/lib/aarch64-linux-gnu/sane/libsane-v4l.so.1' (No such file or directory)
[14:06:36.697998] [dll] load: trying to load `/usr/lib/sane/libsane-v4l.so.1'
[14:06:36.698073] [dll] load: couldn't open `/usr/lib/sane/libsane-v4l.so.1' 
(No such file or directory)
[14:06:36.698131] [dll] load: trying to load `/usr/lib64/sane/libsane-v4l.so.1'
[14:06:36.698203] [dll] load: couldn't open `/usr/lib64/sane/libsane-v4l.so.1' 
(No such file or directory)
[14:06:36.698264] [dll] load: couldn't find backend `v4l' (No such file or 
directory)
[14:06:36.698303] [dll] load: searching backend `umax1220u' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.698341] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-umax1220u.so.1'
[14:06:36.698403] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-umax1220u.so.1'
[14:06:36.698873] [dll] init: initializing backend `umax1220u'
[14:06:36.709740] [dll] init: backend `umax1220u' is version 1.0.2
[14:06:36.709808] [dll] load: searching backend `umax' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.709851] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-umax.so.1'
[14:06:36.709915] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-umax.so.1'
[14:06:36.710368] [dll] init: initializing backend `umax'
[14:06:36.721864] [dll] init: backend `umax' is version 1.0.45
[14:06:36.721932] [dll] load: searching backend `u12' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.721975] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-u12.so.1'
[14:06:36.722038] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-u12.so.1'
[14:06:36.722478] [dll] init: initializing backend `u12'
[14:06:36.733383] [dll] init: backend `u12' is version 1.0.0
[14:06:36.733454] [dll] load: searching backend `teco3' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.733495] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-teco3.so.1'
[14:06:36.733560] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-teco3.so.1'
[14:06:36.733877] [dll] init: initializing backend `teco3'
[14:06:36.734312] [dll] init: backend `teco3' is version 1.0.1
[14:06:36.734359] [dll] load: searching backend `teco2' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.734398] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-teco2.so.1'
[14:06:36.734468] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-teco2.so.1'
[14:06:36.734809] [dll] init: initializing backend `teco2'
[14:06:36.735392] [dll] init: backend `teco2' is version 1.0.10
[14:06:36.735439] [dll] load: searching backend `teco1' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.735478] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-teco1.so.1'
[14:06:36.735540] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-teco1.so.1'
[14:06:36.735746] [dll] init: initializing backend `teco1'
[14:06:36.736202] [dll] init: backend `teco1' is version 1.0.10
[14:06:36.736246] [dll] load: searching backend `tamarack' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.736285] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-tamarack.so.1'
[14:06:36.736346] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-tamarack.so.1'
[14:06:36.736565] [dll] init: initializing backend `tamarack'
[14:06:36.736805] [dll] init: backend `tamarack' is version 1.0.0
[14:06:36.736851] [dll] load: searching backend `sp15c' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.736890] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sp15c.so.1'
[14:06:36.736950] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sp15c.so.1'
[14:06:36.737163] [dll] init: initializing backend `sp15c'
[14:06:36.737303] [dll] init: backend `sp15c' is version 1.0.0
[14:06:36.737350] [dll] load: searching backend `snapscan' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.737388] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-snapscan.so.1'
[14:06:36.737449] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-snapscan.so.1'
[14:06:36.737784] [dll] init: initializing backend `snapscan'
[14:06:36.748716] [dll] init: backend `snapscan' is version 1.4.53
[14:06:36.748798] [dll] load: searching backend `sm3840' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.748839] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sm3840.so.1'
[14:06:36.748902] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sm3840.so.1'
[14:06:36.749324] [dll] init: initializing backend `sm3840'
[14:06:36.760157] [dll] init: backend `sm3840' is version 1.0.0
[14:06:36.760228] [dll] load: searching backend `sm3600' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.760269] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sm3600.so.1'
[14:06:36.760336] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sm3600.so.1'
[14:06:36.760797] [dll] init: initializing backend `sm3600'
[14:06:36.771886] [dll] init: backend `sm3600' is version 1.0.6
[14:06:36.771970] [dll] load: searching backend `sharp' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.772011] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sharp.so.1'
[14:06:36.772077] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sharp.so.1'
[14:06:36.772471] [dll] init: initializing backend `sharp'
[14:06:36.772782] [dll] init: backend `sharp' is version 1.0.0
[14:06:36.772828] [dll] load: searching backend `sceptre' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.772867] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sceptre.so.1'
[14:06:36.772929] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-sceptre.so.1'
[14:06:36.773143] [dll] init: initializing backend `sceptre'
[14:06:36.773397] [dll] init: backend `sceptre' is version 1.0.10
[14:06:36.773441] [dll] load: searching backend `s9036' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.773479] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-s9036.so.1'
[14:06:36.773540] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-s9036.so.1'
[14:06:36.773742] [dll] init: initializing backend `s9036'
[14:06:36.773944] [dll] init: backend `s9036' is version 1.0.0
[14:06:36.773989] [dll] load: searching backend `rts8891' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.774027] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-rts8891.so.1'
[14:06:36.774088] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-rts8891.so.1'
[14:06:36.774410] [dll] init: initializing backend `rts8891'
[14:06:36.785485] [dll] init: backend `rts8891' is version 1.0.2401
[14:06:36.785808] [dll] load: searching backend `ricoh2' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.785856] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ricoh2.so.1'
[14:06:36.785921] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ricoh2.so.1'
[14:06:36.786421] [dll] init: initializing backend `ricoh2'
[14:06:36.797836] [dll] init: backend `ricoh2' is version 1.0.0
[14:06:36.797907] [dll] load: searching backend `ricoh' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.797947] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ricoh.so.1'
[14:06:36.798015] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ricoh.so.1'
[14:06:36.798481] [dll] init: initializing backend `ricoh'
[14:06:36.798767] [dll] init: backend `ricoh' is version 1.0.0
[14:06:36.798813] [dll] load: searching backend `qcam' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.798852] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-qcam.so.1'
[14:06:36.798909] [dll] load: couldn't open 
`/usr/lib/aarch64-linux-gnu/sane/libsane-qcam.so.1' (No such file or directory)
[14:06:36.798977] [dll] load: trying to load `/usr/lib/sane/libsane-qcam.so.1'
[14:06:36.799058] [dll] load: couldn't open `/usr/lib/sane/libsane-qcam.so.1' 
(No such file or directory)
[14:06:36.799107] [dll] load: trying to load `/usr/lib64/sane/libsane-qcam.so.1'
[14:06:36.799170] [dll] load: couldn't open `/usr/lib64/sane/libsane-qcam.so.1' 
(No such file or directory)
[14:06:36.799228] [dll] load: couldn't find backend `qcam' (No such file or 
directory)
[14:06:36.799285] [dll] load: searching backend `plustek' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.799334] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-plustek.so.1'
[14:06:36.799424] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-plustek.so.1'
[14:06:36.799897] [dll] init: initializing backend `plustek'
[14:06:36.811713] [dll] init: backend `plustek' is version 1.0.0
[14:06:36.811810] [dll] load: searching backend `pixma' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:36.811852] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pixma.so.1'
[14:06:36.811917] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pixma.so.1'
[14:06:36.812546] [dll] init: initializing backend `pixma'
[14:06:36.823611] [dll] init: backend `pixma' is version 1.0.27
[14:06:37.345706] [dll] load: searching backend `pint' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.345865] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pint.so.1'
[14:06:37.346028] [dll] load: couldn't open 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pint.so.1' (No such file or directory)
[14:06:37.346128] [dll] load: trying to load `/usr/lib/sane/libsane-pint.so.1'
[14:06:37.346358] [dll] load: couldn't open `/usr/lib/sane/libsane-pint.so.1' 
(No such file or directory)
[14:06:37.346495] [dll] load: trying to load `/usr/lib64/sane/libsane-pint.so.1'
[14:06:37.346764] [dll] load: couldn't open `/usr/lib64/sane/libsane-pint.so.1' 
(No such file or directory)
[14:06:37.346899] [dll] load: couldn't find backend `pint' (No such file or 
directory)
[14:06:37.347031] [dll] load: searching backend `pieusb' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.347130] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pieusb.so.1'
[14:06:37.347365] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pieusb.so.1'
[14:06:37.348357] [dll] init: initializing backend `pieusb'
[14:06:37.366231] [dll] init: backend `pieusb' is version 1.0.1
[14:06:37.366305] [dll] load: searching backend `pie' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.366347] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pie.so.1'
[14:06:37.366412] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-pie.so.1'
[14:06:37.366791] [dll] init: initializing backend `pie'
[14:06:37.367153] [dll] init: backend `pie' is version 1.0.9
[14:06:37.367198] [dll] load: searching backend `niash' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.367237] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-niash.so.1'
[14:06:37.367298] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-niash.so.1'
[14:06:37.367622] [dll] init: initializing backend `niash'
[14:06:37.378455] [dll] init: backend `niash' is version 1.0.1
[14:06:37.378526] [dll] load: searching backend `nec' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.378591] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-nec.so.1'
[14:06:37.378658] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-nec.so.1'
[14:06:37.379141] [dll] init: initializing backend `nec'
[14:06:37.379417] [dll] init: backend `nec' is version 1.0.0
[14:06:37.379461] [dll] load: searching backend `mustek_usb2' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.379501] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-mustek_usb2.so.1'
[14:06:37.379593] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-mustek_usb2.so.1'
[14:06:37.380012] [dll] init: initializing backend `mustek_usb2'
[14:06:37.380088] [dll] init: backend `mustek_usb2' is version 1.0.10
[14:06:37.391431] [dll] load: searching backend `mustek_usb' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.391498] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-mustek_usb.so.1'
[14:06:37.391565] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-mustek_usb.so.1'
[14:06:37.392121] [dll] init: initializing backend `mustek_usb'
[14:06:37.403368] [dll] init: backend `mustek_usb' is version 1.0.18
[14:06:37.403436] [dll] load: searching backend `mustek' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.403477] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-mustek.so.1'
[14:06:37.403541] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-mustek.so.1'
[14:06:37.404175] [dll] init: initializing backend `mustek'
[14:06:37.405014] [dll] init: backend `mustek' is version 1.0.138
[14:06:37.405061] [dll] load: searching backend `microtek2' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.405101] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-microtek2.so.1'
[14:06:37.405164] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-microtek2.so.1'
[14:06:37.405525] [dll] init: initializing backend `microtek2'
[14:06:37.405844] [dll] init: backend `microtek2' is version 1.0.0
[14:06:37.405911] [dll] load: searching backend `microtek' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.405952] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-microtek.so.1'
[14:06:37.406031] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-microtek.so.1'
[14:06:37.406320] [dll] init: initializing backend `microtek'
[14:06:37.406844] [dll] init: backend `microtek' is version 1.0.0
[14:06:37.406893] [dll] load: searching backend `matsushita' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.406932] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-matsushita.so.1'
[14:06:37.406996] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-matsushita.so.1'
[14:06:37.407332] [dll] init: initializing backend `matsushita'
[14:06:37.408002] [dll] init: backend `matsushita' is version 1.0.7
[14:06:37.408052] [dll] load: searching backend `magicolor' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:37.408091] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-magicolor.so.1'
[14:06:37.408155] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-magicolor.so.1'
[14:06:37.408651] [dll] init: initializing backend `magicolor'
[14:06:37.419971] [dll] init: backend `magicolor' is version 1.0.1
[14:06:38.945578] [dll] load: searching backend `ma1509' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:38.945733] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ma1509.so.1'
[14:06:38.945908] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ma1509.so.1'
[14:06:38.946982] [dll] init: initializing backend `ma1509'
[14:06:38.965736] [dll] init: backend `ma1509' is version 1.0.3
[14:06:38.965804] [dll] load: searching backend `lexmark' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:38.965846] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-lexmark.so.1'
[14:06:38.965911] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-lexmark.so.1'
[14:06:38.966427] [dll] init: initializing backend `lexmark'
[14:06:38.977386] [dll] init: backend `lexmark' is version 1.0.32
[14:06:38.977700] [dll] load: searching backend `leo' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:38.977749] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-leo.so.1'
[14:06:38.977812] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-leo.so.1'
[14:06:38.978205] [dll] init: initializing backend `leo'
[14:06:38.978600] [dll] init: backend `leo' is version 1.0.11
[14:06:38.978648] [dll] load: searching backend `kvs40xx' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:38.978688] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kvs40xx.so.1'
[14:06:38.978751] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kvs40xx.so.1'
[14:06:38.979107] [dll] init: initializing backend `kvs40xx'
[14:06:38.989936] [dll] init: backend `kvs40xx' is version 1.0.1
[14:06:38.990154] [dll] load: searching backend `kvs20xx' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:38.990201] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kvs20xx.so.1'
[14:06:38.990267] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kvs20xx.so.1'
[14:06:38.990837] [dll] init: initializing backend `kvs20xx'
[14:06:39.001384] [dll] init: backend `kvs20xx' is version 1.0.2
[14:06:39.001723] [dll] load: searching backend `kvs1025' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:39.001770] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kvs1025.so.1'
[14:06:39.001835] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kvs1025.so.1'
[14:06:39.002275] [dll] init: initializing backend `kvs1025'
[14:06:39.013192] [dll] init: backend `kvs1025' is version 1.0.5
[14:06:39.013261] [dll] load: searching backend `kodakaio' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:39.013303] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kodakaio.so.1'
[14:06:39.013368] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kodakaio.so.1'
[14:06:39.013964] [dll] init: initializing backend `kodakaio'
[14:06:39.024888] [dll] init: backend `kodakaio' is version 1.0.3
[14:06:40.938721] [dll] load: searching backend `kodak' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.938896] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kodak.so.1'
[14:06:40.939089] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-kodak.so.1'
[14:06:40.939838] [dll] init: initializing backend `kodak'
[14:06:40.939985] [dll] init: backend `kodak' is version 1.0.7
[14:06:40.940376] [dll] load: searching backend `ibm' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.940489] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ibm.so.1'
[14:06:40.940651] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-ibm.so.1'
[14:06:40.941271] [dll] init: initializing backend `ibm'
[14:06:40.941815] [dll] init: backend `ibm' is version 1.0.0
[14:06:40.941932] [dll] load: searching backend `hs2p' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.942033] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hs2p.so.1'
[14:06:40.942185] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hs2p.so.1'
[14:06:40.942774] [dll] init: initializing backend `hs2p'
[14:06:40.943443] [dll] init: backend `hs2p' is version 1.0.0
[14:06:40.943555] [dll] load: searching backend `hpsj5s' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.943655] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpsj5s.so.1'
[14:06:40.943811] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpsj5s.so.1'
[14:06:40.944369] [dll] init: initializing backend `hpsj5s'
[14:06:40.944759] [dll] init: backend `hpsj5s' is version 1.0.3
[14:06:40.944866] [dll] load: searching backend `hpljm1005' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.944966] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpljm1005.so.1'
[14:06:40.945121] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hpljm1005.so.1'
[14:06:40.945802] [dll] init: initializing backend `hpljm1005'
[14:06:40.961723] [dll] init: backend `hpljm1005' is version 1.0.1
[14:06:40.961823] [dll] load: searching backend `hp5590' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.961867] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp5590.so.1'
[14:06:40.961934] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp5590.so.1'
[14:06:40.962421] [dll] init: initializing backend `hp5590'
[14:06:40.973562] [dll] init: backend `hp5590' is version 1.0.8
[14:06:40.973658] [dll] load: searching backend `hp5400' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.973702] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp5400.so.1'
[14:06:40.973771] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp5400.so.1'
[14:06:40.974249] [dll] init: initializing backend `hp5400'
[14:06:40.985691] [dll] init: backend `hp5400' is version 1.0.3
[14:06:40.985790] [dll] load: searching backend `hp4200' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.985834] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp4200.so.1'
[14:06:40.985901] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp4200.so.1'
[14:06:40.986398] [dll] init: initializing backend `hp4200'
[14:06:40.997616] [dll] init: backend `hp4200' is version 1.0.0
[14:06:40.997710] [dll] load: searching backend `hp3900' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:40.997754] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp3900.so.1'
[14:06:40.997821] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp3900.so.1'
[14:06:40.999224] [dll] init: initializing backend `hp3900'
[14:06:41.010736] [dll] init: backend `hp3900' is version 1.0.0
[14:06:41.010809] [dll] load: searching backend `hp3500' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:41.010852] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp3500.so.1'
[14:06:41.010920] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp3500.so.1'
[14:06:41.011412] [dll] init: initializing backend `hp3500'
[14:06:41.022761] [dll] init: backend `hp3500' is version 1.0.0
[14:06:41.022832] [dll] load: searching backend `hp' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:41.022875] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp.so.1'
[14:06:41.022941] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-hp.so.1'
[14:06:41.023530] [dll] init: initializing backend `hp'
[14:06:41.023622] [dll] init: backend `hp' is version 1.0.8
[14:06:41.035304] [dll] load: searching backend `gt68xx' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:41.035373] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-gt68xx.so.1'
[14:06:41.035443] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-gt68xx.so.1'
[14:06:41.036011] [dll] init: initializing backend `gt68xx'
[14:06:41.047516] [dll] init: backend `gt68xx' is version 1.0.84
[14:06:41.047929] [dll] load: searching backend `genesys' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:41.047982] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-genesys.so.1'
[14:06:41.048049] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-genesys.so.1'
[14:06:41.049136] [dll] init: initializing backend `genesys'
[14:06:41.062066] [dll] init: backend `genesys' is version 1.0.0
[14:06:41.062518] [dll] load: searching backend `fujitsu' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:41.062594] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-fujitsu.so.1'
[14:06:41.062667] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-fujitsu.so.1'
[14:06:41.063199] [dll] init: initializing backend `fujitsu'
[14:06:41.063284] [dll] init: backend `fujitsu' is version 1.0.134
[14:06:41.074805] [dll] load: searching backend `escl' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:41.074875] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-escl.so.1'
[14:06:41.074945] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-escl.so.1'
[14:06:41.085251] [dll] init: initializing backend `escl'
[14:06:41.085524] [dll] init: backend `escl' is version 1.0.0
[14:06:42.092850] [dll] load: searching backend `epsonds' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:42.093032] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-epsonds.so.1'
[14:06:42.093230] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-epsonds.so.1'
[14:06:42.094627] [dll] init: initializing backend `epsonds'
[14:06:42.111147] [dll] init: backend `epsonds' is version 1.0.0
[14:06:42.111310] [dll] load: searching backend `epson2' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:42.111355] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-epson2.so.1'
[14:06:42.111450] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-epson2.so.1'
[14:06:42.112074] [dll] init: initializing backend `epson2'
[14:06:42.122867] [dll] init: backend `epson2' is version 1.0.124
[14:06:43.124414] [dll] load: searching backend `epjitsu' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.124559] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-epjitsu.so.1'
[14:06:43.124733] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-epjitsu.so.1'
[14:06:43.125851] [dll] init: initializing backend `epjitsu'
[14:06:43.126017] [dll] init: backend `epjitsu' is version 1.0.31
[14:06:43.142981] [dll] load: searching backend `dmc' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.143045] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-dmc.so.1'
[14:06:43.143111] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-dmc.so.1'
[14:06:43.143579] [dll] init: initializing backend `dmc'
[14:06:43.143849] [dll] init: backend `dmc' is version 1.0.0
[14:06:43.143896] [dll] load: searching backend `dell1600n_net' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.143935] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-dell1600n_net.so.1'
[14:06:43.144006] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-dell1600n_net.so.1'
[14:06:43.144443] [dll] init: initializing backend `dell1600n_net'
[14:06:43.144499] [dll] init: backend `dell1600n_net' is version 1.0.0
[14:06:43.445155] [dll] load: searching backend `coolscan3' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.445290] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-coolscan3.so.1'
[14:06:43.445459] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-coolscan3.so.1'
[14:06:43.446459] [dll] init: initializing backend `coolscan3'
[14:06:43.465482] [dll] init: backend `coolscan3' is version 1.0.0
[14:06:43.465699] [dll] load: searching backend `coolscan' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.465773] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-coolscan.so.1'
[14:06:43.465839] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-coolscan.so.1'
[14:06:43.466433] [dll] init: initializing backend `coolscan'
[14:06:43.466795] [dll] init: backend `coolscan' is version 1.0.0
[14:06:43.466842] [dll] load: searching backend `cardscan' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.466882] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-cardscan.so.1'
[14:06:43.466954] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-cardscan.so.1'
[14:06:43.467346] [dll] init: initializing backend `cardscan'
[14:06:43.478046] [dll] init: backend `cardscan' is version 1.0.3
[14:06:43.478205] [dll] load: searching backend `canon_dr' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.478250] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-canon_dr.so.1'
[14:06:43.478313] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-canon_dr.so.1'
[14:06:43.478846] [dll] init: initializing backend `canon_dr'
[14:06:43.478928] [dll] init: backend `canon_dr' is version 1.0.58
[14:06:43.489878] [dll] load: searching backend `canon630u' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.489944] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-canon630u.so.1'
[14:06:43.490011] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-canon630u.so.1'
[14:06:43.490510] [dll] init: initializing backend `canon630u'
[14:06:43.501652] [dll] init: backend `canon630u' is version 1.0.1
[14:06:43.501718] [dll] load: searching backend `canon' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.501759] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-canon.so.1'
[14:06:43.501823] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-canon.so.1'
[14:06:43.502232] [dll] init: initializing backend `canon'
[14:06:43.502428] [dll] init: backend `canon' is version 1.0.0
[14:06:43.502475] [dll] load: searching backend `bh' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.502514] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-bh.so.1'
[14:06:43.502598] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-bh.so.1'
[14:06:43.502869] [dll] init: initializing backend `bh'
[14:06:43.503141] [dll] init: backend `bh' is version 1.0.4
[14:06:43.503188] [dll] load: searching backend `avision' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.503227] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-avision.so.1'
[14:06:43.503287] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-avision.so.1'
[14:06:43.503687] [dll] init: initializing backend `avision'
[14:06:43.517238] [dll] init: backend `avision' is version 1.0.297
[14:06:43.520115] [dll] load: searching backend `as6e' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.520165] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-as6e.so.1'
[14:06:43.520229] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-as6e.so.1'
[14:06:43.520621] [dll] init: initializing backend `as6e'
[14:06:43.520753] [dll] load: searching backend `artec_eplus48u' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.520795] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-artec_eplus48u.so.1'
[14:06:43.520863] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-artec_eplus48u.so.1'
[14:06:43.521244] [dll] init: initializing backend `artec_eplus48u'
[14:06:43.532675] [dll] init: backend `artec_eplus48u' is version 1.0.0
[14:06:43.532745] [dll] load: searching backend `artec' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.532785] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-artec.so.1'
[14:06:43.532850] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-artec.so.1'
[14:06:43.533276] [dll] init: initializing backend `artec'
[14:06:43.533570] [dll] init: backend `artec' is version 1.0.0
[14:06:43.533615] [dll] load: searching backend `apple' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.533654] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-apple.so.1'
[14:06:43.533716] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-apple.so.1'
[14:06:43.533981] [dll] init: initializing backend `apple'
[14:06:43.534235] [dll] init: backend `apple' is version 1.0.0
[14:06:43.534278] [dll] load: searching backend `agfafocus' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.534316] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-agfafocus.so.1'
[14:06:43.534376] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-agfafocus.so.1'
[14:06:43.534681] [dll] init: initializing backend `agfafocus'
[14:06:43.534911] [dll] init: backend `agfafocus' is version 1.0.0
[14:06:43.534957] [dll] load: searching backend `abaton' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.534996] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-abaton.so.1'
[14:06:43.535057] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-abaton.so.1'
[14:06:43.535309] [dll] init: initializing backend `abaton'
[14:06:43.535564] [dll] init: backend `abaton' is version 1.0.0
[14:06:43.535609] [dll] load: searching backend `net' in 
`/usr/lib/aarch64-linux-gnu/sane:/usr/lib/sane:/usr/lib64/sane'
[14:06:43.535647] [dll] load: trying to load 
`/usr/lib/aarch64-linux-gnu/sane/libsane-net.so.1'
[14:06:43.535708] [dll] load: dlopen()ing 
`/usr/lib/aarch64-linux-gnu/sane/libsane-net.so.1'
[14:06:43.536054] [dll] init: initializing backend `net'
[14:06:43.540651] [dll] init: backend `net' is version 1.0.29
[14:06:43.540747] [dll] sane_get_devices: found 1 devices
[14:06:43.540786] [dll] sane_open: trying to open 
`hpaio:/usb/HP_ScanJet_Pro_2000_s2?serial=CN08KA2049'
[14:06:43.646006] [dll] sane_open: open successful
[14:06:43.646145] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=0)
[14:06:43.646269] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=0,action=0,value=0xfffffe1b91cc,info=(nil))
[14:06:43.646384] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=0)
[14:06:43.646482] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=0,action=0,value=0xfffffe1b90a0,info=(nil))
[14:06:43.646631] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=1)
[14:06:43.646719] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=2)
[14:06:43.646794] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=3)
[14:06:43.646874] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=4)
[14:06:43.646948] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=5)
[14:06:43.647028] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=6)
[14:06:43.647104] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=7)
[14:06:43.647188] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=8)
[14:06:43.647274] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=9)
[14:06:43.647355] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=10)
[14:06:43.647433] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=11)
[14:06:43.647512] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=12)
[14:06:43.647586] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=13)
[14:06:43.647667] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=14)
[14:06:43.647747] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=15)
[14:06:43.647830] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=12,action=0,value=0xaaaabdbe5490,info=(nil))
[14:06:43.647911] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=10,action=0,value=0xfffffe1b90a4,info=(nil))
[14:06:43.647993] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=13,action=0,value=0xaaaabdbe5494,info=(nil))
[14:06:43.648075] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=11,action=0,value=0xfffffe1b90a4,info=(nil))
[14:06:43.648160] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=10,action=0,value=0xfffffe1b9200,info=(nil))
[14:06:43.648237] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=12)
[14:06:43.648318] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=12,action=1,value=0xfffffe1b9218,info=0xfffffe1b90a4)
[14:06:43.648395] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=11,action=0,value=0xfffffe1b9200,info=(nil))
[14:06:43.648470] [dll] 
sane_get_option_descriptor(handle=0xaaaac0a11f20,option=13)
[14:06:43.648550] [dll] 
sane_control_option(handle=0xaaaac0a11f20,option=13,action=1,value=0xfffffe1b9218,info=0xfffffe1b90a4)
Scanning infinity pages, incrementing by 1, numbering from 1
Scanning page 1
[14:06:43.648773] [dll] sane_start(handle=0xaaaac0a11f20)
Segmentation fault (core dumped)

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https://bugs.launchpad.net/bugs/1915654

Title:
  segmentation fault when scanning on arm64

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