Hi,
any progress on this?
I had a similar issue with my CANON MG5350 on Linux Mint 19 (Ubuntu 18.04)
via USB it working, via Wi-Fi it's not:
xxx@xxx:~$ scanimage -L
device `pixma:MG5300_192.168.10.19' is a CANON Canon PIXMA MG5300 multi-function peripheral
xxx@xxx:~$ scanimage -T
scanimage: scanning image of size 638x877 pixels at 24 bits/pixel
scanimage: acquiring RGB frame, 8 bits/sample
scanimage: reading one scanline, 1914 bytes... [bjnp] bjnp_open_tcp: ERROR - Can not connect to scanner: Connection refused
FAIL Error: Invalid argument
I tried to put myself into the group "scanner" and to use latest SANE daily git snapshots via ppa:
https://launchpad.net/~rolfbensch/+arch ... u/sane-git
it's frustrating