What to do next to get the scanner Canon Pixma G3501 running at *Ubuntu 18.04 LTS?

[Bas G. Roufs]

System does "see" the scanner, however no scan possible so far.

What to do next to get the scanner  Canon Pixma G3501 running at *Ubuntu 
18.04 LTS?


Hello fellow *Ubuntu users.

Ever since about 10 months, I have been using a Canon Pixma G3501 all in 
one printer-scanner at Kubuntu 18.04 LTS amd64 - at a Lenovo X220, 8 GB 
RAM, 1 TB SSD. Printing goes quite well - however, scanning so far not. 
As far as I can see, I do have the right software, drivers, etc. 
However, there is apparently still some configuration problem. Also a 
lot of research has not helped me so far to get the scanner running.

Simple scan DOES "see" my scanner. When starting it - from terminal or 
graphically, I get to see a screen with a scanner symbol and the 
following text:

"(...)

Ready to Scan

CANON Canon PIXMA G4000 Series

(...)"

When launching simple-scan from terminal, I get this result:

bas at Viaconsensus-iter:~$ simple-scan [bjnp] create_broadcast_socket: 
ERROR - bind socket to local address failed - Address already in use 
[bjnp] create_broadcast_socket: ERROR - bind socket to local address 
failed - Address already in use [bjnp] create_broadcast_socket: ERROR - 
bind socket to local address failed - Address already in use

After the third line that starts with "[bjnp]...", another 17 lines with 
exactly the same feedback comes.

Also Skanlite does "see" my scanner and hooks into the "CANON Canon 
PIXMA G4000 Series" driver.


However, the graphical "Skanlite test" mentions this result when hitting 
the "preview" button:

"(...)

Error during device I/O

(...)"

The "scan" button delivers the same error report.

In the terminal, I get this non-result:

"(...)

bas at Viaconsensus-iter:~$ skanlite "deviceOption value=" ("image/bmp", 
"image/jpeg", "image/png", "image/tiff", "image/vnd.microsoft.icon", 
"image/vnd.wap.wbmp", "image/webp", "image/x-eps", "image/x-icns", 
"image/x-pcx", "image/x-pic", "image/x-portable-bitmap", 
"image/x-portable-graymap", "image/x-portable-pixmap", "image/x-rgb", 
"image/x-tga", "image/x-xbitmap", "image/x-xpixmap") 
"pixma:G3000_192.168.2.12" "pixma:G3000_192.168.2.12" 
"pixma:G3000_192.168.2.12" "button-1" optDesc->cap = 68 "button-2" 
optDesc->cap = 68 "original" optDesc->cap = 68 "target" optDesc->cap = 
68 "scan-resolution" optDesc->cap = 68 "1 instead of 0 arguments to 
message { %} supplied before conversion." "pixma:G3000_192.168.2.12" 
[bjnp] udp_command: ERROR - no data received (timeout = 1000) [bjnp] 
udp_command: ERROR - no data received (timeout = 1000) [bjnp] 
bjnp_recv_header: ERROR - could not read response header (select timed 
out after 1000 ms)! [bjnp] sanei_bjnp_write_bulk: ERROR - Could not read 
response to command! [bjnp] bjnp_recv_header: ERROR - Received response 
has serial 1144, expected 1145 [bjnp] sanei_bjnp_write_bulk: ERROR - 
Could not read response to command! [bjnp] bjnp_recv_header: ERROR - 
Received response has cmd code 74, expected 33 [bjnp] 
sanei_bjnp_write_bulk: ERROR - Could not read response to command! 
sane_read= 9 = Error during device I/O [bjnp] bjnp_recv_header: ERROR - 
could not read response header (select timed out after 1000 ms)! [bjnp] 
sanei_bjnp_write_bulk: ERROR - Could not read response to command! 
[bjnp] bjnp_recv_header: ERROR - Received response has serial 1356, 
expected 1357 [bjnp] sanei_bjnp_write_bulk: ERROR - Could not read 
response to command! [bjnp] bjnp_recv_header: ERROR - Received response 
has cmd code 74, expected 33 [bjnp] sanei_bjnp_write_bulk: ERROR - Could 
not read response to command! sane_read= 9 = Error during device I/O 
[bjnp] udp_command: ERROR - no data received (timeout = 1000) [bjnp] 
udp_command: ERROR - no data received (timeout = 1000)


Also XSane produces similar non-results. A graphical feedback is like this:

"(...)

Error during read: Error during device I/O.

(...)


The terminal delivers the following report:

bas at Viaconsensus-iter:~$ xsane

(xsane:6919): Gtk-WARNING **: 17:08:54.865: Unable to locate theme 
engine in module_path: "adwaita",

(xsane:6919): Gtk-WARNING **: 17:08:54.870: Unable to locate theme 
engine in module_path: "adwaita",
[bjnp] bjnp_recv_header: ERROR - could not read response header (select 
timed out after 1000 ms)!
[bjnp] sanei_bjnp_write_bulk: ERROR - Could not read response to command!
[bjnp] bjnp_recv_header: ERROR - Received response has serial 171, 
expected 172
[bjnp] sanei_bjnp_write_bulk: ERROR - Could not read response to command!
[bjnp] bjnp_recv_header: ERROR - Received response has cmd code 74, 
expected 33
[bjnp] sanei_bjnp_write_bulk: ERROR - Could not read response to command!

What to do next to get my scanner running?