For Ubuntu 20.04, this scanner does not work straight forward.
The ippusbxd driver tries to get the USB device, and it locks it.
In dmesg -w there is a line:
usb 1-11: usbfs: process 5756 (ippusbxd) did not claim interface 0 before use
To resolve the problem:
sudo apt remove ippusbxd
and replug the scanner ! (tested on live USB unmodified Focal).
Download the scanner's linux driver from the Canon website. It's the same driver for related models: scangearmp2-3.70-1-deb
Unpack and install the driver from the download directory:
./install.sh
Canon's own driver is not enough though, to get the Canon scanner working. It only half works. Assuming you have installed Sane. Sane will recognise the scanner.
$ sane-find-scanner
found USB scanner (vendor=0x04a9 [Canon], product=0x1912 [LiDE 400]) at libusb:003:008
But it won't work.
$ scanimage -L
No scanners were identified
$ scanimage --format=png > test.png
scanimage: no SANE devices found
Likewise, SimpleScan won't yet detect the scanner.
It will scan at this stage by running Canon's own scanning software, supplied with the scanner download: scangearmp2. But this software is as rudimentary as toddler's tea set. It won't even let you change the resolution, filetype or scan area.
But thanks to the good work being done by @pekhterev and Rolf Bensch, the scanner will run if you install some more home-grown software.
The scanner worked from Xsane, after doing this. And from Gimp, by calling Xsane (it sees it as a pixma:04A91912 scanner). But the image was dull.
Thankfully, it now also works from SimpleScan.
.
Canon, btw, when I contacted them for help because their scanner didn't work, said. 'we don't support linux'. I said - but you've taken the time to supply a driver - surely you would want to make sure it actually worked when people installed it. They said, 'we don't support linux'.
For Ubuntu 20.04, this scanner does not work straight forward. The
ippusbxd
driver tries to get the USB device, and it locks it. Indmesg -w
there is a line:To resolve the problem:
and replug the scanner ! (tested on live USB unmodified Focal).
Download the scanner's linux driver from the Canon website. It's the same driver for related models: scangearmp2-3.70-1-deb
Unpack and install the driver from the download directory:
Canon's own driver is not enough though, to get the Canon scanner working. It only half works. Assuming you have installed Sane. Sane will recognise the scanner.
But it won't work.
Likewise, SimpleScan won't yet detect the scanner.
It will scan at this stage by running Canon's own scanning software, supplied with the scanner download: scangearmp2. But this software is as rudimentary as toddler's tea set. It won't even let you change the resolution, filetype or scan area.
But thanks to the good work being done by @pekhterev and Rolf Bensch, the scanner will run if you install some more home-grown software.
(source here)
(source)
The scanner worked from Xsane, after doing this. And from Gimp, by calling Xsane (it sees it as a pixma:04A91912 scanner). But the image was dull.
Thankfully, it now also works from SimpleScan.
.
Canon, btw, when I contacted them for help because their scanner didn't work, said. 'we don't support linux'. I said - but you've taken the time to supply a driver - surely you would want to make sure it actually worked when people installed it. They said, 'we don't support linux'.
Finally found a USA Linux driver from Canon: USA driver link Linux 64 bit
Just to add my amateur advice. After all the above,
xsane
still could not find the USB scanner on my system.Make sure the scanner is not asleep, plug it out and then in, then run:
you should see this or something like it:
Go to the directory
/etc/sane.d/canon_dr.conf
and put the vendor and product numbers in that file.At the bottom of the files I added the following lines:
I also stuck that in
canon630u.conf
(just to be sure)After that,
xsane
finds the scanner and I can use it.