I have a Fuji Xerox DocuPrint M225 dw printer/scanner, that's connected to the same wifi network as my Ubuntu 17.04 system, as well as physically connected via USB.
Simple Scan cannot see it (I get the "No scanners detected" banner). It's visible via Avahi though:
~ • avahi-browse -a
+ wlp3s0 IPv4 FX DocuPrint M225 dw Internet Printer local
+ wlp3s0 IPv4 FX DocuPrint M225 dw _scanner._tcp local
+ wlp3s0 IPv4 FX DocuPrint M225 dw PDL Printer local
+ wlp3s0 IPv4 FX DocuPrint M225 dw UNIX Printer local
+ wlp3s0 IPv4 FX DocuPrint M225 dw Web Site local
And sane-find-scanner
can see the USB but not the network interface:
~ • sudo sane-find-scanner
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your computer.
# No SCSI scanners found. If you expected something different, make sure that
# you have loaded a kernel SCSI driver for your SCSI adapter.
found USB scanner (vendor=0x138a, product=0x0017) at libusb:001:006
found USB scanner (vendor=0x0550 [FX], product=0x0190 [DocuPrint]) at libusb:001:002
# Your USB scanner was (probably) detected. It may or may not be supported by
# SANE. Try scanimage -L and read the backend's manpage.
# Not checking for parallel port scanners.
# Most Scanners connected to the parallel port or other proprietary ports
# can't be detected by this program.
But scanimage -L
can't see anything:
~ • SANE_DEBUG_NET=128 scanimage -L
[sanei_debug] Setting debug level of net to 128.
[net] sane_init: authorize != null, version_code != null
[net] sane_init: SANE net backend version 1.0.14 (AF-indep+IPv6) from sane-backends 1.0.27git
[net] sane_init: Client has little endian byte order
[net] sane_init: searching for config file
[net] net_avahi_browse_callback: CACHE_EXHAUSTED
[net] sane_init: done reading config
[net] sane_init: evaluating environment variable SANE_NET_HOSTS
[net] sane_init: evaluating environment variable SANE_NET_TIMEOUT
[net] sane_init: done
[net] sane_get_devices: local_only = 0
[net] sane_get_devices: finished (0 devices)
[net] net_avahi_browse_callback: ALL_FOR_NOW
No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
[net] sane_exit: exiting
[net] net_avahi_cleanup: stopping thread
[net] net_avahi_cleanup: done
[net] sane_exit: finished.
I've tried installing the libsane*-dev
packages and upgrading to the packages in the rolfbensch/sane-git
PPA, rebooting each time. No change in detection. I've confirmed that net
is present and uncommented in /etc/sane.d/dll.conf
.
What else can I try?