[sane-devel] pixma 920 network scanner

[Sasha Kacanski]

Hi,
I have deb 9.1 and I did install sane-back-end and front-end and everything
worked for a while just fine.
I have latest drivers for sane at least latest from debian prospective...


One day scanner stopped working and aside from usb I can't scan over
network no matter what ...

export SANE_DEBUG_PIXMA=20
xport SANE_DEBUG_BJNP=20

scanimage -L 2> /tmp/log

bjnp_allocate_device(bjnp://new-host-3.home:8612) 1
[bjnp] get_scanner_name: Forward lookup for new-host-3.home succeeded,
using as hostname
[bjnp] setup_udp_socket: Setting up a UDP socket, dest: 192.168.1.4  port
8612
[bjnp] bjnp_get_scanner_mac_address: Discover response:
[bjnp]  00000000:42 4a 4e 50 82 01 00 00  00 00 00 00 00 00 00 10
[bjnp]  00000010:00 01 08 00 06 04 f8 0d  60 cc 7f fa c0 a8 01 04
[bjnp] add_scanner: Scanner at bjnp://new-host-3.home:8612 was added
before, good!
[bjnp] sanei_find_devices: scanner discovery finished...
[pixma] pixma_collect_devices() found Canon PIXMA MX920 Series at
bjnp://new-host-3.home:8612
[pixma] pixma_find_scanners() found 2 devices

scanimage -L
device `pixma:MX920_new-host-3.home' is a CANON Canon PIXMA MX920 Series
multi-function peripheral
device `pixma:04A9176B_239673' is a CANON Canon PIXMA MX920 Series
multi-function peripheral

I am not sure if the ARP cache is somehow messed up, or something else is
wrong on the network but no matter what I do including increasing a timeout
for *bjnp-timeout=5000*
*I still get *
*Error during read: Invalid argument ....*

14:43:50.725652 ARP, Request who-has new-host-3.home tell openrg.home,
length 46
14:44:03.168722 ARP, Request who-has venus.home tell new-host-3.home,
length 46
14:44:03.168743 ARP, Reply venus.home is-at d0:50:99:76:17:eb (oui
Unknown), length 28
14:44:03.169115 IP new-host-3.home.8612 > venus.home.8612: UDP, length 32
14:44:03.172898 IP new-host-3.home.8612 > venus.home.8612: UDP, length 32
14:44:03.189756 IP venus.home.53994 > new-host-3.home.8612: UDP, length 16
14:44:03.192539 IP new-host-3.home.8612 > venus.home.53994: UDP, length 32
14:44:03.192649 IP venus.home.45336 > new-host-3.home.8612: UDP, length 16
14:44:03.196669 IP new-host-3.home.8612 > venus.home.45336: UDP, length 117
14:44:03.215539 IP venus.home.40091 > new-host-3.home.8612: UDP, length 16
14:44:03.218627 IP new-host-3.home.8612 > venus.home.40091: UDP, length 32
14:44:08.192337 ARP, Request who-has new-host-3.home tell venus.home,
length 28
14:44:08.192792 ARP, Reply new-host-3.home is-at f8:0d:60:cc:7f:fa (oui
Unknown), length 46
14:44:11.464185 IP new-host-3.home.mdns > 224.0.0.251.mdns: 0*- [0q] 1/0/0
(Cache flush) TXT "txtvers=1" "adminurl=http://mx920.local." "ty=Canon
MX920 series" "mfg=Canon" "mdl=MX920 series" "uuid=239673"
"scannerAvailable=1" (181)
14:44:11.472390 IP new-host-3.home.mdns > 224.0.0.251.mdns: 0*- [0q] 3/0/0
(Cache flush) AAAA fe80::fa0d:60ff:fecc:7ffa, (Cache flush) A 192.168.1.4,
(Cache flush) SRV mx920.local.:8612 0 0 (120)
14:44:20.709221 ARP, Request who-has new-host-3.home tell openrg.home,
length 46
14:44:28.098120 IP new-host-3.home.mdns > 224.0.0.251.mdns: 0*- [0q] 5/0/0
(Cache flush) TXT "txtvers=1" "adminurl=http://mx920.local." "ty=Canon
MX920 series" "mfg=Canon" "mdl=MX920 series" "uuid=239673"
"scannerAvailable=1", (Cache flush) AAAA fe80::fa0d:60ff:fecc:7ffa, (Cache
flush) A 192.168.1.4, (Cache flush) SRV mx920.local.:8612 0 0, PTR Canon
MX920 series._scanner._tcp.local. (265)



I am ok via USB, but just a week ago,I was able to scan from 4 devices on
the network, all linux and now I am stuck with one on the USB side...

Much appreciated ...

-- 
Aleksandar Kacanski
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