[sane-devel] How to enable scanning on a Canon all-in-one printer?

[Alan McConnell]

I took a hiatus in my search to make my Canon scanner work, but
I'm now back to the fray.

On Mon, Mar 16, 2015 at 09:57:39AM -0400, Alan McConnell wrote:
> Assembled Wisdom!
> 
> I am sure that this question has a simple answer.  My situation:
> I bought a Canon imageCLASS MF4770n all-in-one
> printer(scanner/copier/fax)
	(it prints fine, but I'm having trouble with the scanning)

> I have run  sane-find-scanner  and my result is:
>   found USB scanner (vendor=0x04a9 [Canon Inc], product=0x2774
>   [MF4700 Series]) at libusb:001:004
> However, scanimage -L  reports: "No scanners were identified. . . ."
> So something is awry.
        I have followed the kind directions given me, I hope
	correctly.  Namely, I downloaded the file
	   sane-backends-git20150406.tar.gz
	unpacked it, and ran the standard ./configure, make,
	and    make install    sequence.  All seemed to work well
	I now have in my /usr/local/ directory  a new sane
	package.  In particular I have in /usr/local/lib files
	   libsane.so   and   libsane.so.1  , both of which point
	to   libsane.so.1.0.25(a file with  432166 bytes).  I assume
	this means I have a new libsane with an up-to-date frontend.

	Re backend: I can't see where any new backends have been
	installed.  I have found on the web a colloquy between
	Rolph Bensch and Ralph Little, who has exactly the same
	Canon MF4770n that I do, and has succeeded in making it
	work . . .

	But my   'scanimage -i' still reports 'No SANE devices found'.

	I must do something further, I presume.  But what?

TIA for anticipated assistance!

Alan

-- 
Alan McConnell :  http://globaltap.com/~alan/
          If you don't know your rights, you don't have any.
          If it can't be abused, it's not freedom.