[sane-devel] Question SANE and Canon Scanner

[Alexander Pevzner]

Hi Frank,

Lide 300 supports IPP over USB, and eSCL on a top of it. The presence of 
the IPP-over-USB support causes ippusbxd daemon to start, which 
effectively blocks sane-pixma driver and should, in theory, enable 
sane-escl driver, which seems doesn't want to work.

You have two possibilities here:

1. Remove ippusbxd in a hope to unblock sane-pixma:

     sudo apt-get remove ippusbxd

2. Replace eSCL/IPP-over-USB stack with the modern alternative. First 
step as above (remove ippusbxd), then download and install ipp-usb and 
sane-airscan packages from the following location: 
https://download.opensuse.org/repositories/home:/pzz/xUbuntu_20.04/

Note, both of these packages will be officially included into the 
subsequent release of Ubuntu, so you will not be locked with some 
strange 3rd party packages.

-- 

	Wishes, Alexander Pevzner (pzz at apevzner.com)